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Manuals and User Guides for Nidec Unidrive M700. We have 4 Nidec Unidrive M700 manuals available for free PDF download: Parameter Manual, Design Manual, User Manual, Instruction Manual

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Issue: 1

User Guide

Low voltage DC operation

in

Elevator Applications

Unidrive M700

Frame sizes 3 to 10

Original Instructions

For the purposes of compliance with the EU Machinery Directive 2006/42/EC

General information

The manufacturer accepts no liability for any consequences resulting from inappropriate, negligent or incorrect installation or adjustment of the optional operating parameters of the equipment or from mismatching the variable speed drive with the motor.

The contents of this User Guide are believed to be correct at the time of printing. In the interests of a commitment to a policy of continuous development and improvement, the manufacturer reserves the right to change the specification of the product or its performance, or the contents of the User Guide, without notice.

All rights reserved. No parts of this User Guide may be reproduced or transmitted in any form or by any means, electrical or mechanical including photocopying, recording or by an information storage or retrieval system, without permission in writing from the publisher.

Drive firmware version

This product is supplied with the latest firmware version. If this drive is to be connected to an existing system or machine, all drive firmware versions should be verified to confirm the same functionality as drives of the same model already present. This may also apply to drives returned from an Emerson Industrial Automation Service Centre or Repair Centre. If there is any doubt please contact the supplier of the product. The firmware version of the drive can be checked by looking at Pr 11.029.

Environmental statement

Emerson Industrial Automation is committed to minimising the environmental impacts of its manufacturing operations and of its products throughout their life cycle. To this end, we operate an Environmental Management System (EMS) which is certified to the International Standard ISO 14001. Further information on the EMS, our Environmental Policy and other relevant information is available on request, or can be found at http://www.emersonindustrial.com/en-EN/controltechniques/aboutus/environment/Pages/environment.aspx

The electronic variable-speed drives manufactured by Emerson Industrial Automation have the potential to save energy and

(through increased machine/process efficiency) reduce raw material consumption and scrap throughout their long working lifetime. In typical applications, these positive environmental effects far outweigh the negative impacts of product manufacture and end-of-life disposal.

Nevertheless, when the products eventually reach the end of their useful life, they must not be discarded but should instead be recycled by a specialist recycler of electronic equipment. Recyclers will find the products easy to dismantle into their major component parts for efficient recycling. Many parts snap together and can be separated without the use of tools, while other parts are secured with conventional fasteners. Virtually all parts of the product are suitable for recycling.

Product packaging is of good quality and can be re-used. Large products are packed in wooden crates while smaller products come in strong cardboard cartons which themselves have a high recycled fibre content. If not re-used, these containers can be recycled. Polythene, used on the protective film and bags for wrapping product, can be recycled in the same way. Emerson

Industrial Automations’ packaging strategy prefers easily-recyclable materials of low environmental impact, and regular reviews identify opportunities for improvement. When preparing to recycle or dispose of any product or packaging please observe local legislation and best practice.

REACH legislation

EC Regulation 1907/2006 on the Registration, Evaluation, Authorisation and restriction of Chemicals (REACH) requires the supplier of an article to inform the recipient if it contains more than a specified proportion of any substance which is considered by the European Chemicals Agency (ECHA) to be a Substance of Very High Concern (SVHC) and is therefore listed by them as a candidate for compulsory authorisation.

For current information on how this requirement applies in relation to specific Emerson Industrial Automations’ products, please approach your usual contact in the first instance. Emerson Industrial Automations’ position statement can be viewed at: www.emersonindustrial.com/en-EN/controltechniques/aboutus/environment/reachregulation/Pages/reachregulation.aspx

Copyright © June 2016 Emerson Industrial Automation.

The information contained in this User Guide is for guidance only and does not form part of any contract. The accuracy cannot be guaranteed as Emerson have an ongoing process of development and reserve the right to change the specification of their products without notice. Control Techniques Limited. Registered Office: The Gro, Newtown, Powys SY16 3BE. Registered in

England and Wales. Company Reg. No. 01236886. Moteurs Leroy-Somer SAS. Headquarters: Bd Marcellin Leroy, CS 10015,

16915 Angoulême Cedex 9, France. Share Capital: 65 800 512 €, RCS Angoulême 338 567 258.

Issue Number: 1

For patent and intellectual property related information please go to: www.ctpatents.info

.

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This User Guide provides information for installing and operating the drive in Low voltage DC mode. The information is in logical order for designing, configuration set up and operation. Chapter 1 Safety

information contains general safety information it is essential that the warnings are observed and the information considered when designing and working with a system.

Contents

1.1

1.2

Warnings, Cautions and Notes ………………………………………………………………………………………………

Electrical safety — general warning ………………………………………………………………………………………….

1.3 System design and safety of personnel …………………………………………………………………………………..

……………………………………………………………………………………………………………………………….

1.5 Compliance

1.6 Motor regulations

…………………………………………………………………………………………………………………………………

2.1 Modes of operation ……………………………………………………………………………………………………………… supplies

2.3 External

2.4

……………………………………………………………………………………………………………

Low voltage DC operation …………………………………………………………………………………………………….

3 Low Voltage DC Operation ………………………………………………………………………………

3.1 Low

3.2 Low under voltage threshold select ………………………………………………………………………………………..

3.3

3.4

AC supply mode with seem-less transition to Low voltage DC mode + contactor control ……………….

External user 24 Vdc for Low voltage DC mode ……………………………………………………………………….

Single line descriptions …………………………………………………………………………………………………………

Detailed parameter descriptions …………………………………………………………………………………………….

5.2

5.3 DC

5.4

AC supply requirements ………………………………………………………………………………………………………. requirements

External user 24 Vdc supply requirements ………………………………………………………………………………

6.1

6.2

6.3

6.4

Low voltage DC supply …………………………………………………………………………………………………………

AC, DC supply fuse protection ………………………………………………………………………………………………

External AC supply contactor ………………………………………………………………………………………………..

External soft start circuit ………………………………………………………………………………………………………. configurations

6.6 Important

………………………………………………………………………………………………………………………………

7.2 Trip

7.3 Displaying

……………………………………………………………………………………………………………………

7.4

7.5

Behaviour of drive when tripped

………………………………………………………………………………..

Trouble shooting and identifying faults

………………………………………………………………………..

………………………………………………………………………………………………………………

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1.1 Warnings, Cautions and Notes

1.2 Electrical Safety – General warning

The voltages used in the drive can cause severe electrical shock and/or burns, and could be lethal.

Extreme care is necessary at all times when working with or adjacent to the drive. Specific warnings are given at the relevant places in this User Guide.

1.3 System Design and Safety of personnel

The drive is intended as a component for professional incorporation into complete equipment or a system. If installed incorrectly, the drive may present a safety hazard.

The drive uses high voltage and current and carries a high level of stored electrical energy which can cause injury. Close attention is required to the electrical installation and the system design to avoid hazards either in normal operation or in the event of equipment malfunction. System design, installation, commissioning and maintenance must be carried out by personnel who have the necessary training and experience. They must read this safety information and this User Guide carefully.

The STOP and Safe Torque Off (STO) function on the drive provides a highly secure method for preventing the motor from being driven when the Safe Torque Off (STO), Drive enable signal is absent. The Safe Torque Off (STO) input does not offer electrical safety. Before any work is performed on the installation the AC supply and Low voltage DC supply have to be isolated by an approved electrical isolation device for at least 10 minutes to allow the drives internal capacitors to fully discharge.

With the sole exception of the Safe Torque Off (STO) none of the drive functions must be used to ensure safety of personnel, i.e. they must not be used for safety related functions.

Careful consideration must be given to the functions of the drive which might result in a hazard, either through their intended behaviour or through incorrect operation due to a fault. In any application where a malfunction of the drive or its control system could lead to or allow damage, loss or injury, a risk analysis must be carried out, and where necessary, further measures taken to reduce the risk, for example, an over-speed protection device in case of failure of the speed control, or a fail-safe mechanical brake in case of loss of motor braking.

The Safe Torque Off (STO) function may be used in a safety related application. The system designer is responsible for ensuring that the complete system is safe and designed correctly according to the relevant safety standards.

1.4 Access

Drive access must be restricted to authorized personnel only. Safety regulations which apply at the place of use must be complied with.

1.5 Compliance

The installer is responsible for complying with all relevant regulations, such as national wiring regulations, accidental prevention regulations and electromagnetic compatibility (EMC) regulations.

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Particular attention must be given to the cross-sectional areas of conductors, the selection of fuses or other protection, and protective ground (PE) connections.

The Elevator drive User Guide contains instruction for achieving compliance with specific EMC standards.

Within the European Union, all machinery in which this product is used must comply with the following directives:

• 2006/42/EC: Safety of machinery.

• 2014/30/EU:

1.6 Motor

Low speed operation may cause the motor to overheat where the cooling fan becomes less effective.

The motor should be fitted with a protection thermistor. If necessary, an electric forced vent fan should be used.

Synchronous, permanent magnet servo motors can alone generate electrical power if they are rotated this can result in the drive becoming energised through the motor terminal connections even when the supply to the drive is disconnected.

The motor must be isolated from the drive before gaining access to any potential live parts.

parameters

Some parameters have a profound effect on the operation of the drive. They must not be altered without careful consideration of the impact of the controlled system. Measures must be taken to prevent unwanted changes due to error or tampering.

1.8 Electrical

1.8.1 Electrical shock risk

The voltages present in the following locations can cause severe electric shock which may be lethal;

• AC supply cables and connections

• DC supply cables and connections

• Braking resistor cables and connections

• Output motor cables and connections

• Many internal parts of the drive, and external options

Before any work is performed on the installation the AC supply and Low voltage DC supply have to be isolated by an approved electrical isolation device for at least 10 minutes to avoid the risk of severe electric shock which may be lethal.

Unless otherwise indicated, control terminals are single insulated and must not be touched.

1.8.2 Stored charge

The drive contains capacitors that remain charged to a potentially lethal voltage after the AC supply, or Low voltage DC supply has been disconnected. If the drive has been energised, the supply must be isolated for at least ten minutes before work may continue.

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2 Introduction

Before reading this document it is assumed that the user is familiar with the drives documentation.

This User Guide details configuration and operation of the drive with a Low voltage DC supply in an

Elevator system.

2.1 Modes of operation

There are three basic configurations of operation supported on the drive for either the AC supply or the Low voltage DC supply as detailed following.

1: AC supply

Standard operation with the AC supply + optional external user 24 Vdc for Control PCB backup and supplementing the drives internal 24 Vdc supply

2: Low voltage DC through selection of Low under voltage threshold

Backup operation with a Low voltage DC supply selecting the Low under voltage threshold, or as required in some low power applications, continuous operation from a Low voltage DC supply. Control over the transition between the AC supply and Low voltage DC supply must be managed externally within the system for correct and safe operation. An external user 24 Vdc is required for operation.

3: Low voltage DC using on-board control the to manage seem-less control

Backup operation with a Low voltage DC supply, using the additional control on-board the drive which can manage the external contactor control for correct seem-less transition from the AC supply to Low voltage DC supply (the drive must be disabled to transition from Low voltage DC mode to AC mode for drive frame sizes 3 to 6, this allows the internal soft start circuit to manage the inrush). An external user 24 Vdc is required for operation.

NOTE:

It is important to consider pre charging of the drive when applying either the AC or the Low voltage

DC power supplies, and during transitioning between power supplies.

Operating modes

Mode

Pr 06.072

User Supply

Select

(external user

24 Vdc supply)

Pr 06.068 Low

Voltage DC

Mode Enable

Pr 06.067

Low Under

Voltage

Threshold

Select

Operation

AC supply mode

Low voltage DC mode

AC supply mode transition to Low voltage DC supply mode with external contactor control

On (1)

Off (0)

Off (0)

Off (0)

Off (0)

On (1)

Off (0)

On (1)

Off (0)

AC supply mode, uses standard under voltage threshold, optional external user 24 Vdc supply for backup of

Control PCB and, or supplement drives internal 24 Vdc supply

Operation with Low voltage DC mode selecting Low under voltage threshold, external user 24 Vdc supply required for Control PCB (frame 3 and larger),

Power Stage (frame 6 and larger), heatsink fans (frame 9 and larger)

AC supply mode with standard under voltage threshold and seem-less transition to Low voltage DC mode with Low under voltage threshold

(drive must be disabled to transition from Low voltage DC mode to AC mode for frame sizes 3 to 6), external user 24 Vdc supply required for

Control PCB (frame 3 and larger),

Power Stage (frame 6 and larger), heatsink fans (frame 9 and larger)

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supplies

For Low voltage DC operation an external DC supply is required which could be in the form of a UPS or external batteries. The length of time that the drives and system will be able to operate and run the motor will be dependent upon the Elevator system supply requirements along with the battery capacity.

• For Low voltage DC operation drive frame sizes 3 and larger require an external user 24 Vdc supply connected to the Control PCB to power the drive control stage.

• For drive frame sizes 6 and larger the external user 24 Vdc supply is required for the Power Stage dependent upon the final DC Bus voltage level. If the DC Bus is below the AC supply loss level

(refer to section 5.3) this is required.

• For drive frame sizes 9 and larger the external user 24 Vdc supply is also required for the heatsink cooling fans dependent upon the final DC Bus voltage level. If the DC Bus is below the

AC supply loss level (refer to section 5.3) this is required.

Vac supply ratings

Drive model AC supply voltage range

200 Vac

400 Vac

575 Vac

690 Vac

200 to 240 + 10 %

380 to 480 + 10 %

500 to 575 + 10 %

500 to 690 + 10 %

For standard AC operation the supply must be within the allowable operating range specified for the given drive model as detailed in the Drive User Guide. It is possible that for 200 V products installed in low power systems that these could be supplied from either a three phase or single phase supply.

DC supply range

DC supply voltage operating range (Vdc)

Drive model Min Max Over voltage

200 Vac

400 Vac

575 Vac

690 Vac

24

24

24

24

339

679

813

976

415

830

990

1190

The allowable DC voltage for Low voltage DC operation is as detailed above. Where the Low voltage

DC supply is in the form of a battery / UPS the length of time that the drive and system will be able to operate and run the motor will be dependent upon the Elevator system supply requirements along with the battery capacity.

External user 24 Vdc supply specification

External user 24 Vdc supply requirements

Nominal operating

24.0

Minimum operating

Maximum operating

Minimum start-up voltage

Maximum power

Recommended fuse

(Frame 6)

(Frame 3 to 5 & 7 to 10)

(Frame 3 to 6)

(Frame 7 to 10)

(Frame 6)

(Frame 3 to 5 & 7 to 10)

(Frame 3 to 6)

(Frame 7 to 10)

(Frame 3 to 5)

(Frame 6 to 10)

18.6 Vdc

19.2 Vdc

28.0 Vdc

30.0 Vdc (IEC), 26.0 Vdc (UL)

18.4 Vdc

21.6 Vdc

40 W

60 W

3A, 50 Vdc

4A, 50 Vdc

For drive frame sizes 3 and larger an external user 24 Vdc supply is required to power the drive

Control PCB of the drive during Low voltage DC operation. The 24 Vdc supply will maintain power on the Control PCB when the AC supply is no longer present during operation in Low voltage DC mode, or, also whilst the system is in energy saving, sleep mode.

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The external user 24 Vdc supply is also required for drive frame sizes 6 and larger for the Power

Stage dependent upon the final DC Bus voltage level. If the DC Bus is below the AC supply loss level this is required.

For drive frame sizes 9 and larger the external user 24 Vdc supply is also required for the heatsink cooling fans dependent upon the final DC Bus voltage level. If the DC Bus is below than the AC supply loss level this is required.

Power Stage external user 24 Vdc supply, drive frame sizes 6 and larger, Low voltage DC mode

External user 24 Vdc supply

Drive model DC Bus (Vdc)

200 Vac

400 Vac

575 Vac

690 Vac

Vdc < 205

Vdc < 410

Vdc < 540

Vdc < 540

Connect external user 24 Vdc supply to Power Stage

components

The drive in Low voltage DC mode uses external contactors for selection of the power supply, these power supplies being the AC supply, Low voltage DC supply, UPS supply and External user 24 Vdc supply.

The external contactors are also required to support the drives seem-less external contactor control for safe operation from the AC supply to the Low voltage DC supply, refer to System 3 and System 4 in section 6.5 for further details and Pr 06.068, Pr 06.069 and Pr 06.070. During operation in Low voltage DC mode contactor feedback is required to support the transition between the AC supply and the Low voltage DC supply by the drive. Alternatively the transition between the AC supply and the

Low voltage DC supply can be managed by the Elevator controller.

NOTE:

It is important to consider pre charging of the drive when applying either the AC or the Low voltage

DC power supplies, and during transitioning between power supplies.

2.3.1 Drive frame sizes 3 to 6

The external contactor control on the drive is setup to control the AC supply contactor for operation with frame sizes 3 to 6, managing the transition from the AC supply to the Low voltage DC supply.

The inrush from the AC supply and the Low voltage DC supply is managed on the power stage of the drive with an internal inrush circuit.

During the transition from the Low voltage DC supply back to the AC supply the drives internal soft start circuit relay must be in circuit (drive in Under Voltage state) drive disabled, to manage the inrush current for when the AC supply is reapplied.

For operation with a UPS the external contactor control is managed by the Elevator controller to connect and disconnect both the AC supply and the UPS supply with both of these being synchronized. The inrush from the AC supply and the UPS supply are managed on the drive with an internal inrush circuit.

2.3.2 Drive frame sizes 7 and larger

The external contactor control on the drive is setup to control a DC supply contactor for operation with drive frame sizes 7 and larger, managing the transition from the AC supply to the Low voltage DC supply. The inrush from the AC supply is managed through the drives half controlled rectifier, the inrush from a Low voltage DC supply connected directly to the drives DC Bus must be managed with an external soft start circuit.

During the transition from the Low voltage DC supply back to the AC supply the drives half controlled rectifier will manage the inrush current when the AC supply is reapplied. The external soft start circuit is required to manage the inrush current for when the Low voltage DC supply is applied.

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For operation with a UPS the external contactors are managed by the Elevator controller to connect and disconnect both the AC supply and UPS supply, both of these being synchronized. The AC supply and UPS supply inrush current is managed through the drives half controlled rectifier.

.

control

The contactor control for the transition from the AC supply to Low voltage DC supply can be managed locally by the drive when operating in Low voltage DC mode using the on-board control to manage seem-less control Pr 06.068 — Low Voltage DC Mode Enable = On (1).

Alternatively when operating in Low voltage DC mode the transition from the AC supply to the Low voltage DC supply can be managed externally by the Elevator controller. In the instance the Elevator controller is managing the transition using Pr 06.067 — Low Under Voltage Threshold = On (1). The transition from the AC supply to Low voltage DC supply must consider, and manage the inrush current when connecting power supplies, for drive frame sizes 7 and larger using an external soft start circuit. Pr 06.067 — Low Under Voltage Threshold can also be managed by the Elevator controller selecting based upon the active power supply.

NOTE:

It is important to consider pre charging of the drive when applying either the AC or the Low voltage

DC power supply, and during transitioning between power supplies.

2.4 Low voltage DC operation

Low voltage DC operation is available on all drives, and can typically be used to support the following modes of operation in Elevator systems.

2.4.1 Low voltage DC mode for Rescue operation

Low voltage DC mode is used to provide rescue operation for the Elevator system where the AC supply is no longer available. This operation requires the Low voltage DC supply or UPS to deliver power to the drive, Elevator controller and motor along with motor contactors, brakes, auxiliary components, which could include door controller and car lighting etc. The Low voltage DC supply for rescue operation is rated to supply the complete Elevator system, and deliver the required operating power to the motor. The Low voltage DC supply could come from either a) DC battery supply system connected directly to the drives DC Bus b) UPS system connected via the drives AC rectifier input stage

Low voltage DC supply

• Pre charging of the drive when first applying the AC supply for drive frame sizes 3 to 6 will be using the drives internal soft start circuit.

— Transitioning from the AC supply to the Low voltage DC supply where the DC Bus is already charged does not require any soft start to be active

— During a transitioning from the Low voltage DC supply to the AC supply the drive must be in the Under Voltage state where the soft start circuit is active to limit the AC inrush current.

— Connecting the Low voltage DC supply where the DC Bus is discharged will use the drives internal soft start circuit.

• Pre charging of the drive when first applying the AC supply for drive frame sizes 7 and larger will be using the drives half controlled rectifier.

— Transitioning from the AC supply to the Low voltage DC supply where the DC Bus is already charged does not require any pre-charging

— During a transitioning from the Low voltage DC supply to the AC supply the drives half controlled rectifier will limit the AC inrush current.

— Pre charging for the Low voltage DC supply where the DC Bus is discharged requires an external soft start circuit.

UPS supply

• Pre charging of the drive when first applying the AC supply for drive frame sizes 3 to 6 will be using the drives internal soft start circuit.

— Transitioning from the AC supply to the UPS supply where the DC Bus is already charged does not require any soft start to be active

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— During a transitioning from the UPS supply to the AC supply the drive must be in the Under

Voltage state where the soft start circuit is active to limit the AC inrush current.

— Connecting the UPS supply where the DC Bus is discharged will use the drives internal soft start circuit.

• Pre charging of the drive when first applying the AC supply for drive frame sizes 7 and larger will be using the drives half controlled rectifier.

— Transitioning from the AC supply to the UPS supply where the DC Bus is already charged does not require any pre-charging

— During a transitioning from the UPS supply to the AC supply the drives half controlled rectifier will limit the AC inrush current.

— Pre charging for the UPS supply where the DC Bus is discharged will use the drives half controlled rectifier.

2.4.2 Low voltage DC mode continuous operation

Low voltage DC mode is used for normal operation of the Elevator system. The Low voltage DC supply delivers full power to the drive, Elevator controller and Motor along with motor contactors, brakes, auxiliary components which could include door controller and car lighting etc. The Low voltage DC supply for continuous operation is rated to supply the complete system, and deliver full power to the motor. The Low voltage DC supply could come from either c) DC battery supply system connected directly to the drives DC Bus d) UPS system connected via the drives AC rectifier input stage

Low voltage DC supply

• Pre charging of the drive when first applying the Low voltage DC supply for drive frame sizes 3 to

6 will be using the drives internal soft start circuit.

• The drives internal soft start circuit is active when the drive is in the Under Voltage state

• Pre charging of the drive when first applying the Low voltage DC supply for drive frame sizes 7 and larger requires an external soft start circuit.

• The external soft start circuit should be designed around the external Low voltage DC supply

UPS supply

• Pre charging of the drive when first applying the UPS supply for drive frame sizes 3 to 6 will be using the drives internal soft start circuit.

• The drives internal soft start circuit for the UPS supply is active once the drive is in the Under

Voltage state

• Pre charging of the drive when first applying the UPS supply for drive frame sizes 7 and larger will be using the drives half controlled rectifier.

• The drives half controlled rectifier is active once the UPS supply is applied.

NOTE:

During operation in Low voltage DC mode where the Low under voltage threshold is selected there is no power down parameter save carried out, any parameter save must be carried out prior to power down parameter mm.xxx = 1001

NOTE:

If the external 24Vdc is permanently connected to the drive and powering the control stage there will be no power down save carried out, any parameter save must be carried out prior to power down parameter mm.xxx = 1001

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3 Low Voltage DC Operation

Following is an example of a drive system electrical panel with an AC supply for normal operation.

The AC supply in this system could be for example a 200 V, or 400 V supply and is used to supply all components within the electrical panel including the drive and Elevator controller, Motor contactors and brake along with Elevator car and associated controls such as door controller, lighting etc… In some lower power Elevator systems the AC supply could be a single phase AC supply for systems such as Home Elevators.

In the following example the external user 24 Vdc supply is connected to the drive to provide back up for the Control PCB and to supplement the drives internal 24 Vdc supply.

Pr 06.072 — User Supply Select (external user 24 Vdc supply) On (1)

For operation with the AC supply the minimum Standard Under Voltage Threshold (Pr 06.065) is 175

Vdc (200 V drive) 330 Vdc (400 V drive) and 435 Vdc (575, 690 V drive)

Elevator system with AC supply

Elevator system Electrical panel

(Drive + Controller + Auxiliary devices)

Braking resistor

3-phase

Vac power supply

Power supply to

Elevator system

Electrical panel

Elevator

Controller

Brake controller

Rescue control

TRX

Lift car and shaft

Lighting

Reactor

MCB MCB

Filter

Drive

MCB

Backup supply

External

24 Vdc

Power to motor

Power supply to motor brakes

Under normal operation the maximum voltage transient that can be re-applied without controlling the charging current (soft start circuit inactive) is, Peak Rectified AC voltage – Pr 06.065 Standard Under

Voltage Threshold = Max Voltage Transient

This situation could occur for example during a supply brownout.

• Minimum Under voltage threshold for a 400 V drive is 330 Vdc

•

Maximum allowed supply voltage for a 400 V drive is 480 + 10 %

•

Peak of the maximum allowed supply voltage = 480 x 1.1 x √2 = 747 Vdc

• Difference between under voltage threshold and the peak supply voltage = 747 — 330 = 417 Vdc.

• Therefore, when Pr 06.068 — Low Voltage DC Supply Mode Enable = Off (0) for a 400 V drive, the peak supply voltage must never exceed Pr 06.066 — Low Under Voltage Threshold + 417 Vdc

•

On a 400 V supply Pr 06.066 — Low Under Voltage Threshold can be reduced to =

(400 x 1.1 x √2 ) – 417 = 205 Vdc without having to add an external contactor.

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AC supply ratings

Drive model

200 Vac

400 Vac

575 Vac

690 Vac

AC supply voltage rating

200 to 240 + 10 %

380 to 480 + 10 %

500 to 575 + 10 %

500 to 690 + 10 %

Pr 06.065 –

Standard Under

Voltage Threshold

175

330

435

435

Supply loss level

205

410

540

540

The AC supply in the example above will be rated to deliver full power to the complete Elevator system.

Where Pr 06.067 — Low Under Voltage Threshold Select = Off (0) the under voltage threshold is defined by Pr 06.065 — Standard Under Voltage Threshold. If Pr 06.067 — Low Under Voltage

Threshold Select = On (1) then the under voltage threshold is defined by Pr 06.066 — Low Under

Voltage Threshold.

During operation with the AC supply, backup operation for the Control PCB is possible with an external user 24 Vdc supply. This 24 Vdc supply can also be used to supplement the drives own internal 24 Vdc supply. In this case setting Pr 06.072 — User Supply Select (external user 24 Vdc supply) = On (1) will generate a drive trip if the external user 24 Vdc supply is lost, where

Pr 06.072 — User Supply Select (external user 24 Vdc supply) = Off (0) no drive trip is generated on loss of the 24 Vdc supply.

AC Supply and Braking

* In the above figure Pr 06.072 — User Supply Select = On (1) in this example the external user

24 Vdc supply is connected and is being used to back-up the Control PCB, and supplement the drives internal 24 Vdc supply.

P a g e | 12

AC Supply Under Voltage Timing

NOTE:

Power down save is carried out when the DC Bus voltage passes Pr 06.065 — Standard Under

Voltage Threshold in either direction.

NOTE:

If the external 24Vdc is permanently connected to the drive and powering the control stage there will be no power down save carried out, any parameter save must be carried out prior to power down with parameter mm.xxx = 1001

3.1 Low Voltage DC Mode

Any drive can be configured for Low voltage DC operation however there are differences in the electrical connections and operating voltage range depending on the drive frame size. When set up for Low voltage DC operation the drive can deliver rated torque to the motor, up to the speed which can be supported from the Low Voltage DC supply.

Low voltage DC operation is primarily intended for rescue operation following failure of the AC supply.

It is also possible to use Low voltage DC mode for continuous operation of the drive in low power low applications such as Home Elevators.

Where the Low voltage DC supply is in the form of a battery / UPS the length of time that the drive and system will be able to operate and run the motor will be dependent upon the Elevator system supply requirements along with the battery capacity.

Low voltage DC operation can be used whilst operating in any of the following modes:

• Open loop mode (Fixed boost and Open loop vector modes) with an asynchronous motor

• RFC-A closed loop vector with an asynchronous motor

• RFC-S closed loop servo with an synchronous PM servo motor

3.2 Low under voltage threshold select

In this mode of operation the user defines Pr 06.066 — Low Under Voltage Threshold based upon the

Low voltage DC supply and selects this through setting Pr 06.067 — Low Under Voltage Threshold

Select = On (1). All contactor sequencing required to switch from the AC supply to the Low voltage

DC supply, must be managed external to the drive within the system ensuring that the inrush current is managed correctly. An external user 24 Vdc supply is required.

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Pr 06.072 — User Supply Select (external user 24 Vdc supply) Off (0)

Elevator system with Low voltage DC supply

Elevator system Electrical panel

(Drive + Controller + Auxiliary devices)

Braking resistor

3-phase

Vac power supply

Power supply to

Elevator system

Electrical panel

220 Vac UPS

Single phase

UPS system

Elevator

Controller

Brake controller

Rescue control

TRX

Filter

Lift car and shaft

Lighting

Reactor

MCB MCB

Drive

MCB

Power to motor

Backup supply

External

24 Vdc

Battery backup supply

Battery solution

72 Vdc

Power supply to motor brakes

The figure above shows Low voltage DC mode where the supply to the electrical panel and drive is from either the single phase UPS system or the Battery backup supply and the additional external user 24 Vdc supply is being supplied to the drive. During operation in Low Voltage DC Mode the external user 24 Vdc supply should also be connected to (1) the drives Control PCB (2) the Power

Stage (drive frame sizes 6 and larger) and (3) the Heatsink cooling fans (drive frame sizes 9 and larger).

DC supply range

DC supply voltage operating range (Vdc)

Drive model

200 Vac

400 Vac

575 Vac

690 Vac

Min

24

24

24

24

Max

339

679

813

976

Over Voltage

415

830

990

1190

Pr 06.066 –

Low Under

Voltage Threshold

24

⇒ 175

24

⇒ 330

24

⇒ 435

24

⇒ 435

Pr 06.065 –

Standard Under

Voltage Threshold

175

330

435

435

If Pr 06.067 — Low Under Voltage Threshold Select = Off (0) then the under voltage threshold is defined by Pr 06.065 — Standard Under Voltage Threshold and is typically associated to operation with the AC supply. If Pr 06.067 — Low Under Voltage Threshold Select = On (1) then the under voltage threshold is defined by Pr 06.066 — Low Under Voltage Threshold which is set-up for the Low voltage DC supply. The minimum Pr 06.066 — Low Under Voltage Threshold for Low Voltage DC

Mode is 24 Vdc.

Under normal operation the maximum voltage transient that can be re-applied without controlling the charging current (soft start circuit inactive) is, Peak Rectified AC voltage — Pr 06.065 — Standard Under

Voltage Threshold = Max Voltage Transient.

P a g e | 14

This situation could occur for example during a power supply brownout.

•

Minimum Under voltage threshold for a 400 V drive is 330 Vdc

• Maximum allowed supply voltage for a 400 V drive is 480 + 10 %

•

Peak of the maximum allowed supply voltage = 480 x 1.1 x √2 = 747 Vdc

•

Difference between under voltage threshold and the peak supply voltage = 747 — 330 = 417 Vdc.

•

Therefore, when Pr 06.068 — Low Voltage DC Supply Mode Enable = Off (0) for a 400 V drive, the peak supply voltage must never exceed Pr 06.066 — Low Under Voltage Threshold + 417 Vdc

•

On a 400 V supply Pr 06.066 — Low Under Voltage Threshold can be reduced to =

(400 x 1.1 x √2 ) – 417 = 205 Vdc without having to add an external contactor.

Low Voltage DC Supply and Braking

P a g e | 15

Low Voltage DC Supply Under Voltage Timing

NOTE:

For drive frame sizes 7 and larger when operating with a single phase UPS the power supply should be connected to L1 and L2. Input L3 should be connected directly to L2 to avoid a supply loss fault, and to allow the half controlled rectifier to start up and limit the inrush current for operation with the single phase UPS.

NOTE:

During operation in Low voltage DC mode where the Low under voltage threshold is selected there is no power down parameter save carried out, any parameter save must be carried out prior to power down with parameter mm.xxx = 1001

NOTE:

If the external 24 Vdc is permanently connected to the drive and powering the control stage there will be no power down save carried out, any parameter save must be carried out prior to power down with parameter mm.xxx = 1001

3.3 AC Supply Mode with seem-less transition to Low voltage DC Mode +

Contactor Control

In this mode of operation the user defines Pr 06.065 — Standard Under Voltage Threshold and

Pr 06.066 — Low Under Voltage Threshold based upon the Low voltage DC supply. Pr 06.066 — Low

Under Voltage Threshold = On (1) which manages the selection and sequencing of the AC supply to the Low voltage DC supply through the internal contactor control. An external charging circuit may be required for drive frame sizes 7 and larger. An external user 24 Vdc supply is required.

Pr 06.072 — User Supply Select (external user 24 Vdc supply) Off (0)

This mode of Low voltage DC operation uses the additional drive on-board under voltage monitoring and contactor control which will manage the external contactor control for correct seem-less transition from the AC supply to Low voltage DC supply ensuring correct safe operation. The drive must be disabled to transition back from the Low voltage DC supply to the AC supply. This ensures the internal soft start circuit is active and manages the inrush current for drive frame sizes 3 to 6, for drive frame sizes 7 larger and external soft start circuit may be required.

P a g e | 16

Any drive can be configured for Low voltage DC operation however there are differences in the electrical connections and operating voltage range depending on the drive frame size. When set up for Low voltage DC operation the drive can deliver rated torque to the motor up to the speed which can be supported from the Low voltage DC supply.

Low voltage DC operation can be used whilst operating in any of the following modes:

• Open loop mode (Fixed boost and Open loop vector modes) with an asynchronous motor

• RFC-A closed loop vector with an asynchronous motor

• RFC-S closed loop servo with an synchronous PM servo motor

Low Voltage DC Supply and Braking

Active Supply

Pr 06.044

DC Bus Voltage

Pr 05.005

Under Voltage

Pr 10.016

0

Standard AC

Power Supply

1

Pr 06.072

User Supply Select

0

Pr 06.065

Std Under Voltage Threshold

1 Low Under Voltage Threshold

Pr 06.066

Low Under Voltage

Threshold Select

Drive frame sizes 3 to 6 AC supply contactor

Drive frame sizes 7 and larger DC supply soft start contactor

DC mode under voltage control + contactor control

Low Under Voltage

Threshold Select

AC / DC Contactor control output

Low Voltage DC

Power Supply

0

1

Disabled

Ext 24 Vdc to control PCB (frame 3 — 10)

Ext 24 Vdc to power stage (frame 7 — 10)

Ext 24 Vdc to heatsink fans (frame 9 — 10)

Ext 24 Vdc supplement drive internal 24 Vdc (frame 3 — 10)

Pr 06.069

Under Voltage System

Contactor Output

Pr 06.070

Under Voltage System

Contactor Closed Feedback

AC / DC Contactor control feedback

Pr 06.078

Low voltage DC mode enable

Safe Torque Off, Drive Enable

Braking IGBT

Active

Pr 10.011

Pr 05.005

DC Bus Voltage

0

Braking IGBT

Lower Threshold

Pr 06.073

Braking IGBT

Upper Threshold

Pr 06.074

Braking

1 Pr 06.075

Optional brake control for Low voltage

DC operation

Low Voltage Braking

IGBT Threshold

Pr 06.076

Low Voltage Braking

IGBT Threshold Select

NOTE:

Power down save is carried out when the DC Bus voltage passes Pr 06.065 — Standard Under

Voltage Threshold in either direction during operation with the AC supply.

NOTE:

During operation in Low voltage DC mode where the Low under voltage threshold is selected there is no power down parameter save carried out, any parameter save must be carried out prior to power down with parameter mm.xxx = 1001

NOTE:

If the external 24Vdc is permanently connected to the drive and powering the control stage there will be no power down save carried out, any parameter save must be carried out prior to power down with parameter mm.xxx = 1001

P a g e | 17

3.3.1 Drive frame sizes 3 to 6 operation

The various items that make up final drive enable can be seen in Pr 06.010 — Enable Conditions.

Looking at the different operating states for Low voltage DC operation as shown above for drive frame sizes 6 and smaller:

1. If Pr 05.005 — DC Bus Voltage is below the Pr 06.066 — Low Under Voltage Threshold the drive is in the Under Voltage state and the internal charge system is active to limit the charging current either from the Low voltage DC supply or the AC. supply. The AC contactor as shown above will be closed and it is possible for the AC supply to charge the DC Bus of the drive.

2. If Pr 05.005 — DC Bus Voltage is above the Pr 06.066 — Low Under Voltage Threshold, but below

Pr 06.065 — Standard Under Voltage Threshold, there are two possible states depending on whether the drive is enabled or not. a. If the drive is not enabled then the drive will remain in the Under Voltage state, the internal charge system is active and the AC contactor will remain closed, so the DC Bus can be charged by the AC supply.

P a g e | 18

b. If the drive is enabled then the internal charge system is inactive so that the drive can run from the Low voltage DC supply. In this case the AC contactor will be opened so that it is not possible for the AC supply to charge the DC Bus.

3. If Pr 05.005 — DC Bus Voltage is above Pr 06.065 — Standard Under Voltage Threshold then

Pr 10.016 — Under Voltage active will be Off (0) and the AC contactor will be closed so the drive can run from the AC supply.

4. If the Pr 05.005 — DC Bus Voltage subsequently falls below Pr 06.065 — Standard Under Voltage

Threshold and the drive is enabled, the drive can continue to run, but Pr 06.070 Under Voltage

System Contactor Closed is set to Off (0) to open the AC supply contactor. The DC Bus voltage will now drop until it reaches the Low voltage DC supply level. This gives a smooth changeover from the AC supply to the Low voltage DC supply without stopping the motor.

3.3.2 Drive frame sizes 7 and larger operation

The charge system for the AC supply is provided by the half controlled thyristor input bridge within the drive.

P a g e | 19

NOTE:

For drive frame sizes 7 and larger the external contactor which is used to support the soft start charging system for Low voltage DC mode is located in the DC supply connections.

Initial charging from the Under Voltage state is limited by the inrush resistor and then as the DC Bus exceeds Pr 06.066 — Low Under Voltage Threshold the external DC contactor will be closed using the output from Pr 06.069 — Under Voltage System Contact Output. If the AC supply is reconnected the half controlled rectifier will limit the additional charging current.

The charge system for the AC supply is provided by the half controlled thyristor input bridge within the drive. The system operates in a similar way to standard mode (i.e. Low voltage DC mode not enabled) with the following differences.

1. The thyristor charge system always uses a threshold voltage related to Pr 06.065 — Standard

Under Voltage Threshold.

2. Pr 06.069 — Under Voltage System Contact Output is set to On (1) when the DC Bus voltage is above Pr 06.066 — Low Under Voltage Threshold.

3. Pr 10.016 — Under Voltage active cannot be Off (0) if Pr 06.070 Under Voltage System Contactor

Closed = Off (0).

3.3.3 Elevator controller

The transition from AC Supply mode to the Low Voltage DC mode could also be managed externally by the Elevator controller in which case the Elevator controller would also activate a digital input to the drive to enable and disable Low voltage DC mode.

3.4 External user 24 Vdc supply for Low voltage DC mode

During Low voltage DC operation an external user 24 Vdc supply is required to power the Control

PCB (drive frame sizes 3 and larger), Power Stage (drive frame sizes 6 and larger) and heatsink cooling fans (drive frame sizes 9 and larger).

External user 24 Vdc supply specification

Nominal operating

Minimum operating

Maximum operating

Minimum start-up voltage

Maximum power

Recommended fuse

(Frame 6)

(Frame 3 to 5 & 7 to 10)

(Frame 3 to 6)

(Frame 7 to 10)

(Frame 3 to 6)

(Frame 7 to 10)

(Frame 3 to 5)

(Frame 6 to 10)

(Frame 6)

(Frame 3 to 5 & 7 to 10)

24.0 Vdc

18.6 Vdc

19.2 Vdc

28.0 Vdc

30.0 Vdc (IEC), 26.0 Vdc (UL)

18.4 Vdc

21.6 Vdc

40 W

60 W

3A, 50 Vdc

4A, 50 Vdc

• For drive frame sizes 3 and larger an external user 24 Vdc supply is required to power the drive

Control PCB. The 24 Vdc supply will maintain power on the Control PCB when the power supply is no longer present and during operation in Low voltage DC mode, or, whilst the drive system is in energy saving, sleep mode.

• For drive frame sizes 6 and larger the external user 24 Vdc supply is also required for the Power

Stage dependent upon the final DC Bus voltage level. If the DC Bus is below the AC supply loss level this 24 Vdc supply is required.

• For drive frame sizes 9 and larger the external user 24 Vdc supply is also required for the heatsink cooling fans dependent upon the final DC Bus voltage level. If the DC Bus is below the

AC supply loss level this 24Vdc supply is required.

Failure to connect the external user 24 Vdc supply to the Control PCB on drive frame sizes 3 and larger will result in none of the above mentioned functions being available and

PSU 24V

will be displayed on the drives keypad. On drive frame sizes 6 and larger failure to connect the external user

24 Vdc supply to the Power Stage will result in “Waiting For Power Systems” being displayed on the drives keypad.

P a g e | 20

NOTE:

If the external 24Vdc is permanently connected to the drive and powering the control stage there will be no power down save carried out, any parameter save must be carried out prior to power down with parameter mm.xxx = 1001

NOTE:

During operation in Low voltage DC mode where the Low under voltage threshold is selected there is no power down parameter save carried out, any parameter save must be carried out prior to power down with parameter mm.xxx = 1001

NOTE:

The external user 24 Vdc supply to the Power Stage should be cycled ON and OFF with the power supply and Low voltage DC supply.

The external user 24 Vdc supply in addition can be used to commission the drive when the AC supply is not present, with the Control PCB and display operating correctly, or, can be used to supplement the drive’s internal 24 Vdc supply when multiple SI option modules are used or there is heavy loading on the drives digital outputs and the current drawn by these is greater than the drives own internal 24

Vdc supply.

Once the required external user 24 Vdc supplies are connected to the drive it will remain in the “UV”

Under Voltage state unless either the AC supply or Low voltage DC supply is present, therefore diagnostics may not be possible

3.5 Running the Motor

In order for the drive to obtain the correct motor parameter values, the auto tune should be carried out when operating from the AC supply and not during operation in Low Voltage DC mode. If it is not possible to complete the auto tune when operating from the AC supply the motor parameters should be obtained from the motor nameplate and entered into the drive manually. A static auto tune should be carried out for operation in RFC-S mode to derive the encoder phase offset value.

NOTE:

Power down save is carried out when the DC Bus voltage passes Pr 06.065 — Standard Under

Voltage Threshold in either direction.

NOTE:

During operation in Low voltage DC mode where the Low under voltage threshold is selected there is no power down parameter save carried out, any parameter save must be carried out prior to power down with parameter mm.xxx = 1001

NOTE:

If the external 24 Vdc is permanently connected to the drive and powering the control stage there will be no power down save carried out, , any parameter save must be carried out prior to power down with parameter mm.xxx = 1001

3.5.1 Maximum speed of motor

The maximum speed that can be achieved from the motor whilst operating in Low voltage DC mode is dependent upon the type of motor in the application, the Low voltage DC supply rating and power requirement from the complete system which the Low voltage DC supply is connected to. The Low voltage DC supply needs to be sufficiently rated in order to overcome the stator resistance of the motor, with the final voltage level from the Low voltage DC supply determining the maximum operating speed which can be achieved from the motor.

It is very important to consider that when operating with an overhauling load such as in an drive system, even with the correct braking resistor selection, the drive may not be able to maintain full control over the load due to the level of torque based on both the Low voltage DC supply, and when the drive goes into field weakening operation. The drive may rotate the motor up to rated speed, however even with minimal load the motor could stall due to the reduced torque available when operating in the field weakening region.

P a g e | 21

Where the Low voltage DC supply is in the form of a battery / UPS the length of time that the drive and system will be able to operate and run the motor will be dependent upon the drive systems power supply requirements along with the battery capacity.

3.5.2 Low voltage DC operation with Asynchronous induction motors

In order to generate torque with an asynchronous induction motor the drives AC output in Low voltage

DC mode must be sufficient to overcome the stator resistance and magnetise the motor. The drive will also start to field weaken at the point at which the AC output voltage reaches its maximum level based upon the Low voltage DC supply connected to the drive and its final DC Bus voltage level.

Note reduced torque may be experienced during operation in Low voltage DC mode where the motor requires higher levels of voltage to fully magnetize the motor; the reasons for this are as follows

• The Low voltage DC supply has reached its maximum voltage supplying the drive.

• The drive has reached its maximum AC output voltage based on the Low voltage DC supply and final DC Bus voltage.

3.5.3 Low voltage DC operation with a Synchronous PM servo motors

During Low voltage DC operation the drive may NOT be able to limit the speed of a synchronous PM servo motor with a high overhauling load due to reduced motor torque resulting from the Low voltage

DC supply rating.

The speed of the synchronous PM servo motor is limited based on the Ke (voltage constant) value as follows.

A drive with a Low voltage DC supply of 282 V, running a 255 rpm synchronous PM motor which has a Ke value of 1142 V/1000 rpm.

• Motor speed (rpm) per AC output volt

• AC Output voltage from Low voltage DC supply

255 rpm / 1142 V = 0.22 rpm/V

282 V /

√

2 = 141.0 V

• Final motor speed (rpm) at Low voltage DC supply 0.22

The calculations above give an estimated value for motor speed based on the Low voltage DC supply and do not take into account motor volt drops etc.

If a synchronous PM servo motor on brake release rotates to a high speed due to the position of the

Elevator car in the system and its loading, the DC Bus of the drive plus associated system wiring and fuse protection could rise above the rating of the Low voltage DC supply and its connections to the drive.

P a g e | 22

For Low voltage DC mode there are a number of parameters within the drive which support configuration of the drive, these include settings for the Low voltage DC supply, UPS and Brake control. The following section details the user parameters within the drive which are used for configuration of the Low voltage DC mode.

Parameter Description

Pr 06.044

Pr 06.067

Active supply

Pr 06.072 User supply select

Pr 06.065 Standard under voltage threshold

Pr 06.066 Low under voltage threshold

Low under voltage threshold select

Notes

Power supply status

External user 24 Vdc supply

Low voltage DC operation using Low under voltage threshold select

Pr 06.068 Low voltage supply mode enable

Pr 06.069 Under voltage system contactor output

Pr 06.070 Under voltage system contactor closed

Full Low voltage DC operation with internal under voltage threshold select and output contactor control

Pr 06.071

Pr 06.048

Slow rectifier charge rate enable

Phase loss input detection level

Slow rectifier charge to preserve battery lifetime during power up

Disable input phase loss for operation with single phase UPS

Pr 06.073 Braking IGBT lower threshold

Pr 06.074 Braking IGBT upper threshold

Pr 06.075 Low voltage braking IGBT threshold

Brake control voltage setup and low voltage braking select.

Pr 06.076 Low voltage braking IGBT threshold select

Parameter

Short description

Minimum

Default

Type

Display Format

Coding

Pr 06.044 Active Supply

Indicates when the low voltage DC supply mode is enabled and the DC Bus voltage is below the Pr 06.065 — Standard Under Voltage Threshold

Off (0) n/a

1 Bit Volatile

Standard

RO, ND, NC, PT

Maximum

Units

Update Rate

Decimal Places

On (1)

Off (0) or On (1)

Background write

0

If Pr 06.068 — Low Voltage Supply Mode Enable = Off (0) then Pr 06.044 — Active Supply = Off 0).

If Pr 06.068 — Low Voltage Supply Mode Enable = On (1) then Pr 06.044 — Active Supply = Off (0) when the DC Bus voltage is above the Pr 06.065 — Standard Under Voltage Threshold otherwise

Pr 06.044 — Active Supply = On (1).

In Regen mode Pr 06.044 — Active Supply is always = Off (0).

Parameter Pr 06.072 User Supply Select

Short description

Minimum

Default

Type

Set = On (1) to select supply from external user 24 Vdc supply

Off (0)

Off (0)

1 Bit User Save

Display Format Standard

Coding RW

Maximum

Units

Update Rate

Decimal Places

On (1)

Off (0) or On (1)

Background read

0

The power for the drive control system is either taken from the external user 24 Vdc supply or the AC supply (i.e. derived from the power circuit DC Bus). For drive frame sizes 7 and above a diode OR system is used to select the required power supply, therefore this is done automatically in hardware.

Note the external user 24 Vdc supply connection is made to the Power Stage drive frame sizes 6 and larger and Control PCB with drive frame sizes 3 and larger.

If Pr 06.072 — User Supply Select = Off (0, Pr 06.068 — Low Voltage Supply Mode Enable = Off (0),

P a g e | 23

Pr 06.067 — Low Under Voltage Threshold Select = Off (0), the power supply used is determined as follows for drive frame sizes 3 to 6.

1. When the drive first powers up it attempts to use the AC supply or the external user 24

Vdc supply in turn until the drive fully powers up, beginning with the AC supply.

2. If the AC supply is active and Pr 05.005 — DC Bus Voltage falls to a level where it is no longer possible to communicate with the power stage the drive attempts to switch over to the external user 24 Vdc supply. If the 24 Vdc supply is not present then the drive will power down, otherwise it will continue to run off the 24 Vdc supply. The level at which the power stage powers down depends on whether the 24 Vdc supply is present or not. However this is usually below half the minimum for Pr 06.065 — Standard Under Voltage Threshold.

3. If the external user 24 Vdc supply is being used and Pr 05.005 — DC Bus Voltage rises above

95 % of the minimum for Pr 06.065 — Standard Under Voltage Threshold the drive attempts to switch to the AC supply.

The following should be noted:

1. Parameters can be saved by setting parameter mm.xxx = 1 or 1000 (whilst not in the Under

Voltage state) or setting parameter mm.xxx = 1001 and initiating a drive reset (whilst in the

Under Voltage state). Power down save parameters are saved when the Pr 06.065 — Standard

Under Voltage Threshold becomes active.

2. If the drive is powered from the external user 24 Vdc supply and then the AC supply is activated but is not above 95 % of the minimum for Pr 06.065 — Standard Under Voltage Threshold then the drive will continue to be powered from the 24 Vdc supply. If the 24 Vdc supply is subsequently removed the drive will power down, however if the AC supply is high enough the drive will power up again on the AC supply.

If Pr 06.072 — User Supply Select = On (1), Pr 06.068 — Low Voltage Supply Mode Enable = Off (0),

Pr 06.067 — Low Under Voltage Threshold Select = Off (0), the AC supply used is determined as follows for drive frame sizes 3 to 6.

1. The drive will still power up on the AC supply even if the external user 24 Vdc supply is not present. During power up the drive tries each power supply in turn to power up, however the drive will remain in the

PSU 24V

tripped state until the 24 Vdc supply is activated.

2. Parameters can only be saved by setting parameter mm.xxx = 1001 and initiating a drive reset.

3. Power-down save parameters are not saved when the Under Voltage state is active.

Where either Pr 06.068 — Low Voltage Supply Mode Enable = On (1) or Pr 06.067 — Low Under

Voltage Threshold Select = On (1) and where the external user 24 Vdc supply must be connected

Pr 06.072 — User Supply Select is no longer active and the 24 Vdc supply is automatically managed internally and always selected through the setting of Pr 06.068 — Low Voltage Supply Mode Enable or

Pr 06.067 — Low Under Voltage Threshold Select.

1. The drive will still power up on the AC supply even if the external user 24 Vdc supply is not present. During power up the drive tries each power supply in turn to power up, however the drive will remain in the

PSU 24V

tripped state until the 24 Vdc supply is activated.

2. Parameters can only be saved by setting parameter mm.xxx = 1001 and initiating a drive reset.

3. Power-down save parameters are not saved when the Under Voltage state is active.

Parameter Pr 06.065 Standard Under Voltage Threshold

Short description Defines the standard under voltage threshold

Minimum −VM_STD_UNDER_VOLTS Maximum

Default

Type

See exceptions below

16 Bit User Save

Units

Update Rate

Display Format

Coding

Standard

RW, VM, RA

Decimal Places

VM_STD_UNDER_VOLTS

V

Background read

0

P a g e | 24

Drive model

200 Vac

400 Vac

575 Vac

690 Vac

Minimum

Vdc

24

24

24

24

Pr 06.066 — Low

Under Voltage

Threshold

* 24 to 175

* 24 to 330

* 24 to 435

* 24 to 435

Pr 06.065

Standard

Under Voltage

Threshold

175

330

435

435

Maximum

Vdc

339

679

813

976

Over voltage

Vdc

415

830

990

1190

* For Low voltage DC operation Pr 06.066 — Low Under Voltage Threshold is setup based upon the external Low voltage DC power supply being used.

Under voltage system and AC supply control

Under Voltage System

The under voltage system controls the state of Pr 10.016 — Under Voltage which is used by the state machine. When Pr 10.016 — Under Voltage = On (1) the state machine will change to the Under

Voltage state and during this time it is not possible to enable the drive. The under voltage system operates in different ways depending on the setting of Pr 06.068 — Low Voltage Supply Mode Enable.

Each under voltage threshold (Pr 06.065 — Standard Under Voltage Threshold and Pr 06.066 — Low

Under Voltage Threshold) detection system includes a hysteresis of 5 % of the actual threshold level therefore,

Pr 05.005- DC Bus Voltage Under Voltage Detection

Vdc Active

Threshold < Vdc No Change

Vdc > Threshold x 1.05 * Not Active

* Hysteresis is 5 % subject to a minimum of 5 Vdc

It should be noted that the under voltage threshold and charging rate (Pr 06.071 — Slow Rectifier

Charge Rate Enable) used with a thyristor based charge system (drive frame sizes 7 and larger) are automatically saved within the rectifier units each time the values are changed because these will be

P a g e | 25

required at the next power up before the drive control system is active. The values will be retained when they are changed up to 128 times, if any more changes are made between power up and power down the new values are not retained.

AC Supply Control

If Pr 06.068 — Low Voltage Supply Mode Enable = On (1) or Pr 06.067 — Low Under Voltage Threshold

Select where Pr 06.066 — Low Under Voltage Threshold is being used the internal drive power supplies are automatically managed internally and normally powered from the external user 24 Vdc supply.

Setting Pr 06.072 — User Supply Select = On (1) is only required when operating from the AC supply and an external user 24 Vdc supply is connected to the drive for backup. Setting this parameter enables detection of loss of the 24 Vdc supply, and will result in the monitoring system generating

PSU 24V

a trip.

Standard Mode (Pr 06.068 — Low Voltage Supply Mode Enable = Off (0))

If Pr 06.067 — Low Under Voltage Threshold Select = Off (0) then the under voltage threshold is defined by Pr 06.065 — Standard Under Voltage Threshold. If Pr 06.067 — Low Under Voltage

Threshold Select = On (1) then the under voltage threshold is defined by Pr 06.066 — Low Under

Voltage Threshold.

Drives frame sizes 3 to 6

Drive frame sizes 3 to 6 have a DC Bus charge system based on a charge resistor and shorting contactor that is in circuit for both the AC and DC supply input connections to the drive. The charge system is generally active (shorting contactor open) when Pr 10.016 — Under Voltage = On (1) and inactive when Pr 10.016 — Under Voltage = Off (0). One exception is for the delay of 50 ms while the shorting contactor changes state and during these periods Pr 10.016 — Under Voltage = On (1).

If the DC Bus voltage is above the under voltage threshold and Pr 10.016 — Under Voltage = Off (0) a large surge of current can occur if the AC supply is removed and then reapplied to the drive. For a given level of supply voltage the worst case surge occurs when the power supply is applied at the point where one of the line voltages is at its peak. The surge is proportional to the difference between the DC Bus voltage before the AC supply is reconnected and the magnitude of the AC supply voltage.

The minimum setting and default for Pr 06.065 — Standard Under Voltage Threshold corresponds to the lowest DC Bus voltage level where the maximum allowed AC supply voltage can be applied without damaging the drive or rupturing the recommended AC supply fuses. Therefore it is safe to adjust the under voltage threshold using Pr 06.065 — Standard Under Voltage Threshold.

If the under voltage threshold needs to be lower than the minimum of Pr 06.065 — Standard Under

Voltage Threshold then Pr 06.066 — Low Under Voltage Threshold should be used.

It is important that the difference between the under-voltage threshold level and the peak of the power supply voltage is never larger than the difference between the minimum Pr 06.065 — Standard Under

Voltage Threshold and the peak of the maximum allowed AC supply voltage for the drive.

For example

Minimum Pr 06.065 — Standard Under Voltage Threshold for a 400 V drive = 330 V

Maximum allowed power supply voltage for this drive = 480 V + 10 %

Peak of the maximum allowed power supply voltage = 480 x 1.1 x √2 = 747 V

Difference between the under voltage threshold and the peak power supply voltage 747 — 330 = 417 V

Therefore for this drive voltage rating the peak line to line voltage must never be higher than

Pr 06.066 — Low Under Voltage Threshold + 417 V

If Pr 06.067 — Low Under Voltage Threshold Select = On (1) and Pr 06.066 — Low Under Voltage

Threshold is reduced below the variable maximum level VM_STD_UNDER_VOLTAGE [MIN] or if

Pr 06.068 — Low Voltage Supply Mode Enable = On (1) an indication is stored in Pr 10.106 — Potential

Drive Damage Conditions that cannot be cleared by the user. This marks the drive so that if it is damaged as a result of an input current surge, this can be detected by service personnel.

P a g e | 26

Voltage level 200 V 400 V 575 V 690 V

Drives frame sizes 7 and larger

Drive frame sizes 7 and larger use a DC Bus charge system based on a half controlled thyristor input bridge, the charge system is activated based on the level of the voltage at the AC supply terminals of the drive. The threshold for the charge system is set so that the rectified AC supply will give the required under voltage threshold level. The under voltage system operates in exactly the same way as for drive frame sizes 3 to 6 except that the delay during the transition out of the Under Voltage

state is extended. For a single power module the delay is 1.0 s to allow the thyristor charge system to charge the DC Bus. For parallel power modules the delay is extended to 2.5 s to ensure that all power modules power up correctly.

Under voltage timing with Pr 06.068 — Low Voltage Supply Mode Enable = Off (0)

Low voltage mode drive frame sizes 3 to 6 (Pr 06.068 — Low Voltage Supply Mode Enable = On

(1))

Low voltage supply mode is intended to provide a smooth transition without disabling the drive, from the AC supply to a Low voltage DC supply. It is necessary to disable the drive for the transition

back to the AC supply to allow the soft start circuit to become active. The following diagram is a simple representation of the power circuit required. This does not include the necessary circuit protection or battery charger etc.

P a g e | 27

Low voltage mode for drive frame sizes 3 to 6

The following state diagram shows Pr 10.016 — Under Voltage, the control signal to the external contactor Pr 06.069 Under Voltage Contactor Output and Pr 06.044 — Active Supply. When

Pr 06.068 — Low Voltage Supply Mode Enable = On (1) a maximum is applied to Pr 06.066 — Low

Under Voltage Threshold to prevent this from being increased above Pr 06.065 — Standard Under

Voltage Threshold / 1.1 so that the 5 % hysteresis band on the Pr 06.066 — Low Under Voltage

Threshold does not overlap the Pr 06.065 — Standard Under Voltage Threshold.

Low voltage mode states for drive frame sizes 3 to 6

Pr the Under Voltage state and the internal charge system is active to limit the charging current from either the Low voltage DC supply or the AC supply. When Pr 06.069 — Under Voltage System

Contactor Output = On (1) it is possible for the AC supply to charge the DC Bus.

P a g e | 28

Pr 06.065 — Standard Under Voltage Threshold, there are two possible states depending on whether the Final drive enable is Off (0) or On (1).

— If the Final drive enable = Off (0) then Pr 10.016 — Under Voltage = On (1), the internal charge system is active and Pr 06.070 Under Voltage System Contactor Closed = On (1), so that the DC Bus can be charged by the AC supply.

— If Final drive enable = On (1) then Pr 10.016 — Under Voltage = Off (0) and the internal charge system is inactive so that the drive can RUN from the Low voltage DC supply.

Pr 06.069 — Under Voltage System Contactor Output = Off (0), so that it is not possible for the AC supply to charge the DC Bus.

3. If

Pr 10.016 — Under Voltage = Off (0) and Pr 06.070 Under Voltage System Contactor Closed = On

(1) so the drive can RUN from the AC supply.

4. If

Threshold and the Final drive enable = On (1), the drive can continue to RUN, but Pr 06.070

Under Voltage System Contactor Closed is set to Off (0) to open the AC supply contactor. The

DC Bus voltage will fall until it reaches the Low voltage DC supply level. This gives a smooth changeover to the Low voltage DC supply without stopping the motor.

To ensure that the DC Bus charge system is in the correct state to protect the drive the following additional restrictions are applied,

1. The DC Bus charge system cannot change to the inactive state (i.e. internal shorting contactor closed) unless the DC Bus voltage is above Pr 06.065 — Standard Under Voltage Threshold,

Pr 06.070 Under Voltage System Contactor Closed = Off (0). This is shown in the following diagram which shows the drive operation when the DC Bus voltage is between the Pr 06.065 —

Standard Under Voltage Threshold and the Pr 06.066 — Low Under Voltage Threshold . When

the Final drive enable becomes active the external contactor is opened to disconnect the AC supply because the drive is intended to run from the Low voltage DC supply. The DC Bus charge system should not be deactivated until the external contactor is opened because it is providing protection against surge currents due to the AC supply being re-applied. Once it is open the DC

Bus charge system is deactivated (shorting contactor closed) and the drive can RUN. A side effect of this additional condition occurs when the DC Bus voltage falls and crosses the

Pr 06.065 — Standard Under Voltage Threshold when the drive in running. There should be a smooth transition, but the delay between disabling the external contactor Pr 06.069 — Under

Voltage System Contactor Output = Off (0) and confirmation of this Pr 06.070 Under Voltage

System Contactor Closed = Off (0) when the DC Bus voltage crosses the threshold this will cause the DC Bus charge system to activate transiently giving a period with Pr 10.016 —

Under Voltage = On (1). To prevent this problem the indication that the DC Bus voltage has fallen and crossed Pr 06.065 — Standard Under Voltage Threshold is delayed by 200 ms.

2. Pr 06.069 — Under Voltage System Contactor Output = Off (0) is not set to On (1) until the DC

Bus charge system is fully active (shorting contactor is open) because the DC Bus charge system is required to prevent current surges from the power supply being applied. This is also shown in the diagram following.

.

The following diagram shows how the above restrictions are applied to the system timing when

Pr 06.066 — Low Under Voltage Threshold ≤ Pr 05.005 — DC Bus Voltage.

P a g e | 29

Drive frame sizes 3 to 6 under voltage timing, Pr 06.068 — Low Voltage Supply Mode Enable =

On (1)

Low voltage mode drive frame size 7 and larger, Pr 06.068 — Low Voltage Supply Mode Enable

= On (1)

Low voltage mode is intended to provide a smooth transition, without disabling the drive, from

the AC supply to the Low voltage DC supply and vice versa. The following diagram is a simple representation of the power circuit required. This does not include the necessary circuit protection or battery charger, etc.

Low voltage mode for drive frame size 7 and larger

The diagram overleaf shows the state of Pr 10.016 — Under Voltage and the control signal to the external contactor control and Pr 06.069 — Under Voltage System Contactor Output.

P a g e | 30

Low voltage mode states for drive frame size 7 and larger

The low voltage supply system contactor is used to provide the charge system for the Low voltage DC supply. The charge system for the AC supply is provided by the half controlled thyristor input bridge within the drive. The system operates in a similar way to standard mode (i.e. Low voltage DC operation not enabled) with the following differences.

1. The thyristor charge system always uses a threshold voltage related to Pr 06.065 — Standard

Under Voltage Threshold.

2. Pr 06.069 — Under Voltage System Contact Output is set to On (1) when the DC Bus voltage is above Pr 06.066 — Low Under Voltage Threshold.

3. Pr 10.016 — Under Voltage active cannot be Off (0) if Pr 06.070 Under Voltage System Contactor

Closed = Off (0).

The following diagram shows how these differences apply to the system operation.

P a g e | 31

Drive frame size 7 and larger under voltage timing with Pr 06.068 — Low Voltage Supply Mode

Enable = On (1)

Parameter Pr 06.068 — Low Voltage Supply Mode Enable

Short description

Minimum

Default

Type

Set to 1 to enable the backup supply mode

Off (0)

Off (0)

1 Bit User Save

Display Format Standard

Coding RW

Maximum

Units

Update Rate

Decimal Places

On (1)

Off (0) or On (1)

Background read

0

Pr 06.068 — Low Voltage Supply Mode Enable is used to select the low voltage supply mode. Note the under voltage system operates in different way when this parameter is enabled refer to Pr 06.065 —

Standard Under Voltage Threshold for further information.

Pr 06.068 — Low Voltage Supply Mode Enable = On (1) a maximum is applied to Pr 06.066 — Low

Under Voltage Threshold to prevent this from being increased above Pr 06.065 — Standard Under

Voltage Threshold / 1.1 so that the 5 % hysteresis band on the Pr 06.066 — Low Under Voltage

Threshold does not overlap the O11 Standard Under Voltage Threshold.

Refer to Pr 06.072 — User Supply Select and Pr 06.065 — Standard Under Voltage Threshold which provide details of when and how drive parameters can be saved, and when a PSU 24V trip could occur.

In Regen mode Pr 06.068 — Low Voltage Supply Mode Enable is not available, and so Low voltage

DC supply mode cannot be selected.

P a g e | 32

Parameter Pr 06.067 Low Under Voltage Threshold Select

Short description

Minimum

Default

Type

Set to On (1) to enable the low under voltage threshold in parameter O14

Off (0)

Off (0)

1 Bit User Save

Display Format Standard

Coding RW

Maximum

Units

Update Rate

Decimal Places

On (1)

Off (0) or On (1)

Background read

0

If Pr 06.067 — Low Under Voltage Threshold Select = Off (0) then the under voltage threshold is defined by Pr 06.065 — Standard Under Voltage Threshold.

If Pr 06.067 —Low Under Voltage Threshold Select = On (1) then the under voltage threshold is defined by Pr 06.066 — Low Under Voltage Threshold.

Pr 06.065 — Standard Under Voltage Threshold is used to select the low under voltage threshold setup by the user for Low voltage DC operation in Pr 06.066 — Low Under Voltage Threshold.

It should be noted that the under voltage threshold used with a thyristor based charge system (drive frame sizes 6 and larger) is automatically saved within the rectifier units each time the value is changed as this will be required at the next power up before the drive control system is active. The value will be retained when it is changed up to 128 times, if any more changes are made between power up and power down the new value is not retained.

Also refer to Pr 06.072 — User Supply Select and Pr 06.065 — Standard Under Voltage Threshold which provide details of when and how drive parameters can be saved, and when a PSU 24V trip could occur.

Parameter Pr 06.066 Low Under Voltage Threshold

Short description Defines the low under voltage threshold

Minimum −VM_LOW_UNDER_VOLTS Maximum

Default

Type

See exceptions below

16 Bit User Save

Units

Update Rate

Display Format

Coding

Standard

RW, VM, RA

Decimal Places

VM_LOW_UNDER_VOLTS

V

Background read

0

Pr 06.066 — Low Under Voltage Threshold is used to set the low under voltage threshold for Low voltage DC operation. The default settings for Pr 06.066 — Low Under Voltage Threshold is the same as the Pr 06.065 — Standard Under Voltage Threshold. Pr 06.067Low Under Voltage Threshold Select is used to select Pr 06.066 — Low Under Voltage Threshold.

Drive model

200 Vac

400 Vac

Minimum

Vdc

24

24

Pr 06.066 — Low

Under Voltage

Threshold

* 24 to 175

* 24 to 330

Pr 06.065 —

Standard

Under Voltage

Threshold

175

330

Maximum

Vdc

339

679

Over voltage

Vdc

415

830

575 Vac

690 Vac

24

24

* 24 to 435

* 24 to 435

435

435

813

976

990

1190

* For Low voltage DC operation Pr 06.066 — Low Under Voltage Threshold is setup based upon the external Low voltage DC power supply being used.

When Pr 06.068 — Low Voltage Supply Mode Enable = On (1) a maximum is applied to Pr 06.066 —

Low Under Voltage Threshold to prevent this from being increased above Pr 06.065 — Standard

Under Voltage Threshold / 1.1 so that the 5 % hysteresis band on the Pr 06.066 — Low Under Voltage

Threshold does not overlap the Pr 06.065 — Standard Under Voltage Threshold.

P a g e | 33

Parameter

Short description

Minimum

Default

Type

Display Format

Coding

Pr 06.069 Under Voltage Contactor Close Output

Low voltage DC supply control output

Off (0)

Off (0)

1 Bit Volatile

Standard

RO, ND, NC, PT

Maximum

Units

Update Rate

Decimal Places

On (1)

Off (0) or On (1)

4ms write

0

Refer to Pr 06.072 — User Supply Select and Pr 06.065 — Standard Under Voltage Threshold which provide details of how the contactor control system is carried out.

Under voltage system and AC supply control

Parameter Pr 06.070 Under Voltage System Contactor Closed

Short description

Minimum

Default

Type

Low voltage DC supply external control input state

Off (0)

Off (0)

1 Bit Volatile

Display Format Standard

Coding RW

Maximum

Units

Update Rate

Decimal Places

On (1)

Off (0) or On (1)

4ms read

0

Refer to Pr 06.072 — User Supply Select and Pr 06.065 — Standard Under Voltage Threshold which provide details of how the contactor control system is carried out.

P a g e | 34

Under voltage system and AC supply control

Parameter Pr 06.071 Slow Rectifier Charge Rate Enable

Short description

Minimum

Default

Type

Enable to reduce the charge rate of the DC Bus and limit charging current

Off (0)

Off (0)

1 Bit User Save

Display Format Standard

Coding RW

Maximum

Units

Update Rate

Decimal Places

On (1)

Off (0) or On (1)

Background read

0

For drive frame sizes 6 and larger which use a DC Bus charge system based on a half controlled thyristor input bridge the rate at which the drives DC Bus charges can be reduced by setting

Pr 06.071 — Slow Rectifier Charge Rate Enable = On (1).

Enabling the slow rectifier charging will limit the charging current which may be required for an external UPS or could also be required if there is additional capacitance added to the DC Bus of the drive which will also prevent input fuse failure during turn ON. The charging rate is extended by approximately 16 times when Pr 06.071 — Slow Rectifier Charge Rate Enable = On (1).

It should be noted that the charging rate used with a thyristor based charge system (drive frame sizes

6 and larger) is automatically saved within the rectifier units each time the value is changed as this will be required at the next power up before the drive control system is active. The value will be retained when it is changed up to 128 times, if any more changes are made between power up and power down the new value is not retained.

P a g e | 35

Parameter

Short description

Minimum

Default

Type

Display Format

Pr 06.073 Braking IGBT Lower Threshold

Pr 06.074 Braking IGBT Upper Threshold

Defines the lowest level of the DC Bus voltage where the braking IGBT becomes active

−VM_DC_VOLTAGE_SET Maximum

See exceptions below Units

VM_DC_VOLTAGE_SET

V

16 Bit User Save

Standard

Update Rate

Decimal Places

4ms read

0

Pr 06.073 — Braking IGBT Lower Threshold defines the lowest level of DC Bus voltage where the braking IGBT will become active and Pr 06.074 — Braking IGBT Upper Threshold defines the level of

DC Bus voltage where the braking IGBT will be ON continuously

.

Drive model

200 Vac

400 Vac

575 Vac

690 Vac

Pr 06.074 Braking IGBT Lower

Threshold

390

780

930

1120

Pr 06.074 Braking IGBT Upper

Threshold

390

780

930

1120

When the braking IGBT is turned on it will remain ON for at least 1ms. The braking IGBT ON time is defined by the thresholds and the DC Bus voltage as given in the table below where;

L = Pr 06.073 — Braking IGBT Lower Threshold

U = Pr 06.074 — Braking IGBT Upper Threshold

DC Bus voltage level ON time

Pr 05.005 — DC Bus Voltage

L ≤ Pr 05.005 — DC Bus Voltage

0 %

((Pr 05.005 — DC Bus Voltage — L) / (U — L)) x 100 %

Pr 05.005 — DC Bus Voltage ≥ U 100 %

As Pr 05.005 — DC Bus Voltage rises above the lower threshold Pr 06.073 — Braking IGBT Lower

Threshold becomes active with an ON-OFF ratio of 1/100. As the voltage rises further the ON-OFF ratio increases until at Pr 06.074 — Braking IGBT Upper Threshold is on continuously.

If Pr 06.073 — Braking IGBT Lower Threshold ≥ Pr 06.074 — Braking IGBT Upper Threshold then the braking IGBT is OFF when Pr 05.005 — DC Bus Voltage < Pr 06.074 — Braking IGBT Upper Threshold and ON if Pr 05.005 — DC Bus Voltage ≥ Pr 06.074 — Braking IGBT Upper Threshold.

The upper and lower voltage thresholds can be set up so that braking resistors in drives with parallel connected DC Bus connections will share the total braking load. Unless sharing between braking resistors is required the braking thresholds do not normally need to be adjusted. Care should be taken when reducing the thresholds because if either threshold is below the maximum value of the peak rectified AC supply voltage the braking resistor could take power from the supply.

The list below gives conditions that will disable the braking IGBT

1. Pr 06.074 — Braking IGBT Upper Threshold = 0

2. The drive is in the under voltage UV state.

3. A priority 1, 2 or 3 trip is active (see diagnostics and drive trip codes).

4. One of the following trips is active or would be active if another trip is not already active OI Brake

,

PSU

,

Th, Brake Res or OHt Inverter .

5. Pr 07.036 — Percentage Of Drive Thermal Trip Level = 100 %. This is an indication that some part of the drive is too hot.

6. Brake R Too Hot is active or the system has been set up to disable the braking IGBT based on the braking resistor temperature and the resistor is too hot (i.e. bit 2 of Pr 10.037 — Action On Trip

Detection is set).

P a g e | 36

Parameter Pr 06.075 Low Voltage Braking IGBT Threshold

Short description

Minimum

Defines the threshold used for low voltage braking

−VM_DC_VOLTAGE_SET

Default 0

Maximum VM_DC_VOLTAGE_SET

Units V

Type

Display Format

16 Bit User Save

Standard

Update Rate

Decimal Places

4ms read

0

As default if Pr 06.076 — Low Voltage Braking IGBT Threshold Select = Off (0) the standard braking voltage thresholds are used in both parameter Pr 06.073 — Braking IGBT Lower Threshold and

Pr 06.074 — Braking IGBT Upper Threshold.

If Pr 06.076 — Low Voltage Braking IGBT Threshold Select = On (1) then low voltage braking IGBT threshold is used. The braking IGBT is active (ON) with a minimum ON time of 1ms if the DC Bus voltage is above the level setup, or is inactive (OFF) if the DC Bus voltage is below this level.

Drive model

Pr 06.073 — Braking IGBT

Lower Threshold

Pr 06.074 — Braking IGBT

Upper Threshold

Pr 06.075- Low voltage

Brake IGBT Threshold

200 Vac

400 Vac

390

780

390

780

390

780

575 Vac

690 Vac

930

1120

930

1120

930

1120

Low voltage braking voltage threshold is selected through parameter D22 Low Voltage Braking IGBT

Threshold Select

The list below details conditions which will disable the braking IGBT

1. Pr 06.076 — Low Voltage Braking IGBT Threshold Select = On (1) and Pr 06.075 — Low Voltage

Braking IGBT Threshold = 0.

2. The drive is currently in the under voltage UV state.

3. A priority 1, 2 or 3 trip is active (refer to Pr 10.020 — Trip 0).

4. One of the following trips is active or would be active if another trip is not already active:

OI Brake , PSU , Th Brake Res or OHt Inverter

5. Pr 07.036 — Percentage Of Drive Thermal Trip Level = 100 %. This is an indication that some part of the drive is too hot.

6. Brake R Too Hot is active or the system has been set up to disable the braking IGBT based on the braking resistor temperature and the resistor is too hot (i.e. bit 2 of Pr 10.037 — Action On Trip

Detection is set).

Parameter Pr 06.076 Low Voltage Braking IGBT Threshold Select

Short description

Minimum

Default

Type

Set to On (1) to enable low voltage IGBT braking threshold

Off (0)

Off (0)

1 Bit Volatile

Display Format Standard

Coding RW

Maximum

Units

Update Rate

Decimal Places

On (1)

Off (0) or On (1)

4ms read

0

If Pr 06.076 — Low Voltage Braking IGBT Threshold Select = Off (0) the standard braking voltage thresholds are used in both Pr 06.073 — Braking IGBT Lower Threshold and Pr 06.074 — Braking IGBT

Upper Threshold.

If Low Voltage Braking IGBT Threshold Select = On (1) then the low voltage braking IGBT threshold in Pr 06.075 — Low Voltage Braking IGBT Threshold is used. The braking IGBT is active (ON) with a minimum ON time of 1ms if the DC Bus voltage is above the level setup in

Pr 06.075 — Low Voltage Braking IGBT Threshold, or is inactive (OFF) if the DC Bus voltage is below this level.

P a g e | 37

5 Electrical Installation

Many cable management features have been incorporated into the product to support both AC and

DC power supply connections. This chapter details how to optimize these features and make the required connections to the drive.

Electric shock risk

The voltages present in the following locations can cause severe electric shock and may be lethal:

• AC power supply cables and connections

• DC power supply cables and connections

• Output motor cables and connections

• External braking resistor cables and connections

• Many internal parts of the drive, and any external option units

Unless otherwise indicated, control terminals are single insulated and must not be touched.

Isolation device

The AC and or DC supply must be disconnected from the drive using an approved isolation device before any cover is removed from the drive or before any servicing work is performed.

STOP function

The STOP function does not remove dangerous voltages from the drive, the motor, external braking resistor or any external option units.

Safe Torque Off (STO)

The Safe Torque Off (STO) function does not remove dangerous voltages from the drive, the motor, external braking resistor or any external option units.

Stored charge

The drive contains capacitors that remain charged to a potentially lethal voltage after the

AC and or DC supply has been disconnected. If the drive has been energized, the AC and or DC supply must be isolated for at least ten minutes before work may continue.

Normally, the capacitors are discharged by an internal resistor. Under certain, unusual fault conditions, it is possible that the capacitors may fail to discharge, or be prevented from being discharged by a voltage applied to the output terminals. If the drive has failed in a manner that causes the display to go blank immediately, it is possible the capacitors will not be discharged.

In this case, consult Emerson Industrial Automation or their authorized distributor.

Equipment supplied by plug and socket

Special attention must be given if the drive is installed in equipment which is connected to the AC supply by a plug and socket. The AC supply terminals of the drive are connected to the internal capacitors through rectifier diodes which are not intended to give safety isolation. If the plug terminals can be touched when the plug is disconnected from the socket, a means of automatically isolating the plug from the drive must be used (e.g. a latching relay).

Permanent magnet motors

Permanent magnet motors generate electrical power if they are rotated, even when the supply to the drive is disconnected. If this occurs the drive will become energized through its motor terminals and connections.

If the motor load is capable of rotating the motor when the supply is disconnected, then the motor must be isolated from the drive before gaining access to any live parts.

P a g e | 38

5.1 Power Connections

Drive frame size 3 power connections

Internal DC Bus reactor

P a g e | 39

Drive frame size 4 power connections

Internal DC Bus reactor

P a g e | 40

Drive frame size 5 power connections

Internal DC Bus reactor

P a g e | 41

Drive frame size 6 power connections

Internal DC Bus reactor

P a g e | 42

Drive frame size 7 and 8 power connections

Drive frame 7 Internal DC Bus reactor

Drive frame 8 Internal AC line reactor

For drive frame sizes 7 and larger when operating with a single phase UPS the power supply should be connected to L1 and L2. L3 should be connected directly to L2 to avoid a supply loss fault, and to allow the half controlled rectifier to start up and limit the inrush current with the UPS.

P a g e | 43

Drive frame size 9A power connections

Internal AC line reactor

For drive frame sizes 7 and larger when operating with a single phase UPS the power supply should be connected to L1 and L2. L3 should be connected directly to L2 to avoid a supply loss fault, and to allow the half controlled rectifier to start up and limit the inrush current with

the UPS.

P a g e | 44

Drive frame size 9E 10E power and control connections

External AC line reactor required

No direct DC supply connections

For drive frame sizes 7 and larger when operating with a single phase UPS the power supply should be connected to L1 and L2. L3 should be connected directly to L2 to avoid a supply loss fault, and to allow the half controlled rectifier to start up and limit the inrush current with

the UPS.

P a g e | 45

Drive frame size 9D 10D power and control connections

External AC line reactor required

AC supply via external Rectifier

For drive frame sizes 7 and larger when operating with a single phase UPS the power supply should be connected to L1 and L2. L3 should be connected directly to L2 to avoid a supply loss fault, and to allow the half controlled rectifier to start up and limit the inrush current with the UPS.

P a g e | 46

5.2 AC Supply Requirements

Number of phases:

Maximum AC supply imbalance:

Frequency range:

3

2 % negative phase sequence (equivalent to 3 % voltage

imbalance between phases).

45 to 66 Hz

Drive model AC supply voltage rating

200 Vac

400 Vac

575 Vac

690 Vac

200 to 240 + 10 %

380 to 480 + 10 %

500 to 575 + 10 %

500 to 690 + 10 %

For UL compliance only, the maximum supply symmetrical fault current must be limited to 100 kA

All drives are suitable for use on any AC supply type i.e. TN-S, TN-C-S, TT and IT.

• AC supplies with a voltage up to 600 V may have grounding at any potential, i.e. neutral, centre or corner (“grounded delta”)

• AC supplies with voltage above 600 V may not have corner grounding

• If an SI-Applications Plus module is installed in the drive, then the drive must not be used on a corner grounded or centre grounded delta supply if the supply voltage is above 300 V. If this is required, please contact the supplier of the drive for more information.

• Operation with IT (ungrounded) supplies: Special attention is required when using internal or external EMC filters with ungrounded supplies, because in the event of a ground (earth) fault in the motor circuit the drive may not trip and the filter could be over loaded. In this case, either the EMC filter must not be used (removed) or additional independent motor ground fault protection must be provided.

A ground fault in the AC supply has no effect in any case. If the motor must continue to run with a ground fault in its own circuit then an input isolating transformer must be provided and if an EMC filter is required it must be located in the primary circuit.

Drives are suitable for use on supplies of installation category III and lower, according to IEC60664-1.

This means they may be connected permanently to the supply at its origin in a building, but for outdoor installation additional over-voltage suppression (transient voltage surge suppression) must be provided to reduce category IV to category III.

5.2.1 AC supplies requiring input line reactors

AC input line reactors reduce the risk of damage to the drive resulting from poor phase balance or severe disturbances on the supply network which can result from the following factors,

• Power factor correction equipment connected close to the drive.

• Large DC drives having no or inadequate line reactors connected to the supply.

• Across the line (DOL) started motor(s) connected to the supply such that when any of these motors are started, the voltage dip exceeds 20 %.

These supply disturbances can cause excessive peak currents to flow in the input power circuit of the drive causing nuisance tripping, or in extreme cases, failure of the drive.

When AC input line reactors are required, each drive must have its own reactor. Three individual reactors or a single three-phase reactor should be used.

Drive frame sizes 082001160 to 08600860 have internal AC line reactors so they do not require AC line reactors except for cases where they must comply with EN 12015:2014 Electromagnetic compatibility or where there is excessive phase unbalance or extreme supply conditions.

P a g e | 47

Drives of low power rating may also be susceptible to disturbance when connected to supplies with a high rated capacity. Line reactors are particularly recommended for use with the following drive models when one of the above factors exists, or when the supply capacity exceeds 175 kVA

03200050, 03200066, 03200080, 03200106,

03400025, 03400031, 03400045, 03400062

Note the current rating of the AC input line reactors should be as follows:

Current rating

Peak current rating

= Not less than the drives continuous Heavy Duty input current rating

= Not less than twice the drives continuous Heavy Duty input current rating

supplies

The following section provides guidance for the selection of a suitable DC supply for use with the drive. The working voltage range of the low voltage DC supply is as follows:

DC operating supply voltage range and levels

Drive model

Min

Vdc

200 Vac 24

400 Vac 24

575 Vac 24

690 Vac 24

Pr 06.066 — Low

Under Voltage

Threshold

175

330

435

435

Pr 06.065 —

Standard

Under Voltage

Threshold

175

330

435

435

Standard supply loss level

205

410

540

540

Max

Vdc

339

679

813

976

Over voltage trip

415

830

990

1190

For UL compliance only, the maximum supply symmetrical fault current must be limited to 100 kA

Minimum and maximum voltage values include ripple and noise. Ripple and noise values must not exceed 5 %.

5.2.1 Low voltage DC supply types

The Low voltage DC supply may be connected to ground or left floating. In the event of a contactor sticking, high voltage would be present at the negative terminal of the drive. The instructions following ensure user safety in both cases.

5.2.2 Systems with an isolated DC supply

The supply can be floating with respect to ground, although it may have a high impedance ground to drain leakage currents. In the event of a fault where AC and DC supplies are connected at the same time a high current would have no fault path to ground.

In this case:

• The user 24 Vdc, +DC, -DC Bus terminals of the drive and DC terminals of the Low voltage DC supply must be protected from user contact.

• The Low voltage DC supply must be able to withstand mains potential with respect to ground and be suitable for use in an industrial environment (category 2 supplies).

• Cables rated for the voltage of the rectified AC supply must be used to connect the drive to the

Low voltage DC supply.

In the event of a fault the user 24 Vdc, +DC, -DC Bus terminals of the drive and DC terminals of the

Low Voltage DC source (including any wiring between) could be at a potentially lethal voltage.

5.2.3 Systems with a grounded DC supply

If the I

2 t of the ground connection is not greater than that of the fuses used, then the external user 24

Vdc supply terminal and associated wiring could be at a potentially lethal voltage in the event of a fault.

The ground connection for the supply must be a high constant current connection with an I

2 t rating greater than the fuses. This is so that in the event of a fault where AC and DC supplies are connected

P a g e | 48

at the same time a high current will flow to ground and blow the fuses in the Low voltage DC supply path.

• The wiring from the drive to fuses must be protected to a voltage rating equal to or exceeding the rectified AC supply voltage.

• The wiring from the fuse to the supply must be rated correctly for the supply

5.2.4 UPS supply

Not all UPS sources are suitable for all applications. Their common disadvantage is a relatively short runtime with most data sheets stating runtime at half load. For some small consumer grade unit’s half load runtime can typically be in the region of 13-20 minutes dependent upon selection.

Note the characteristic is not linear and at full load you may get only 1/3 of half-load runtime.

Note most suppliers of smaller UPS supplies publish their systems with a volt-ampere (VA) rating. A typical maximum real power in watts of such a UPS supply is only 60 % of its nameplate VA rating.

So, when you are selecting a UPS supply, ensure the net wattage of your loads does not exceed 60

% of the UPS VA rating.

To estimate your system wattage you could add the load currents of all devices to be supplied from the UPS supply and multiply this by 120, giving the volt-amps rating, note where the loads have a near unity power factor, watts will be roughly the same as the VA rating..

For example, if the system including all loads consumes 10 A, then this equates to 10 x 120 = 1200

VA. In this example you could select a UPS supply rated for at least 1200 / 0.6 = 2000 VA.

5.4 External user 24 Vdc supply requirements

For operation in Low voltage DC mode and backup operation of the drive an external user 24 Vdc supply is required. The 24 Vdc supply is used to supply power to the control circuit PCB for drive frame sizes 3 and larger it also supplies power to the Power Stage for drive frame sizes 6 and larger, and for drive frame sizes 9 and larger it supplies the drives heatsink cooling fans.

The location of the external user 24 Vdc supply connection to the drives frame sizes 3 to 10 can be seen in section 5.1 Power Connections

.

The external user 24 Vdc supply connected to the drive for Low voltage DC mode and backup operation supports the following functions:

External user 24 Vdc supply

Function Frame size 3 to 5 Frame size 6 to 8 Frame size 9 to 10

Control PCB Low voltage DC mode

Supplement Control

PCB internal supply

Control terminal

T.1 and T.2

Control terminal

T.1 and T.2

Control terminal

T.1 and T.2

Control terminal

T.1 and T.2

Control terminal

T.1 and T.2

Control terminal

T.1 and T.2 terminal

T.51 and T.52

Control terminal

T.51 and T.52

Power Stage Low voltage DC mode

Heatsink fans Low voltage DC mode T.61 and T.62

The external user 24 Vdc supply connected to the Control PCB can be sequenced with the Low voltage DC supply or can remain connected and active during normal operation where the AC supply is powering the drive.

The external user 24 Vdc supply connected to the Power Stage can be sequenced with the Low voltage DC supply or can remain connected and active during normal operation where the AC supply is powering the drive.

The external user 24 Vdc supply connected to the Power Stage for the heatsink cooling fans can be sequenced with the Low voltage DC supply or can remain connected and active during normal operation where the AC supply is powering the drive.

P a g e | 49

The working voltage range of Low voltage DC mode is as follows:

External user 24 Vdc supply specification

24 Vdc supply requirements

Nominal operating

Minimum operating

Maximum operating

Minimum start-up voltage

Maximum power

Recommended fuse

(Frame 6)

(Frame 3 to 5 & 7 to 10)

(Frame 3 to 6)

(Frame 7 to 10)

(Frame 6)

(Frame 3 to 5 & 7 to 10)

(Frame 3 to 6)

(Frame 7 to 10)

(Frame 3 to 5)

(Frame 6 to 10)

24.0 Vdc

18.6 Vdc

19.2 Vdc

28.0 Vdc

30.0 Vdc (IEC), 26.0 Vdc (UL)

18.4 Vdc

21.6 Vdc

40 W

60 W

3 A, 50 Vdc

4 A, 50 Vdc

Minimum and maximum voltage values include ripple and noise. Ripple and noise values must not exceed 5 %.

5.5 Ground Connections

The location of the ground connections for drive frame sizes 3 to 10 can be seen in Power connections. Electromechanical corrosion of grounding terminals is possible. Ensure that the grounding terminals are protected against corrosion i.e. such as caused by condensation

On drive frame size 3 and 4, the supply and motor ground connections are made using the M4 studs located either side of the drives main plug in power connector.

On drive frame size 5, the supply and motor ground connections are made using the

M5 studs located close to the main plug in power connector.

On a drive frame size 6, the supply and motor ground connections are made using the M6 studs located close to the main plug in power connector.

On a drive frame size 7, the supply and motor ground connections are made using the

M8 studs located close to the main plug in power connector.

On drive frame sizes 8, 9 and 10 drives the supply and motor ground connections are made using the

M10 studs located close to both the AC Supply connections and the AC Motor connections.

Ground connection cables

Input phase conductor size Minimum ground conductor size

< 10 mm

> 10 mm

> 16 mm

> 35 mm

2

2

2

2 and < 16 mm

2

and < 35 mm

2

Either 10 mm

2

or two conductors of the same cross-sectional area as the input phase conductor

The same cross-sectional area as the input phase conductor mm

2

Half of the cross-sectional area of the input phase conductor

P a g e | 50

6.1 Low voltage DC supply

The external DC supply for Low voltage DC operation should be selected based upon the power requirements of the drive system. The Low voltage DC supply can be connected directly to the drives

DC Bus connections with (a) Blocking diode (b) Fuse protection (c) Soft start circuit (drive frame sizes

7 and larger) and (d) Contactor for isolation and to allow correct transition from the AC supply to the

Low voltage DC and vise versa.

When selecting the Low voltage DC supply the following points must be considered,

•

Is the Low voltage DC supply required to supply power to the complete electrical panel which includes the drive, Elevator controller + any Auxiliary control

•

Is the Low voltage DC supply required to supply full power to the motor and its mechanical brakes

•

Is the Low voltage DC supply required to supply power to the lighting within the Elevator car along with the door controller

• How long will the Low voltage DC supply be required to power to the drive, is this required just for recovery operation, or is this required for continued operation. Consider the duration of operation and the lifetime of the Low voltage DC supply

— The drive supports load measurement during start and or travel allowing the drive to provide an indication to the Elevator controller during Low voltage DC operation to travel in the direction of least load. This means the power rating of the Low voltage DC supply could be optimized

— The drive supports protection for a UPS when used in Low voltage DC mode, this prevents the UPS from being overloaded during operation, preserving lifetime. This is typically used with the load measurement at start and or travel.

•

The drive system mechanical design and shaft efficiency along with loading will have an influence on the required power and rating of the external Low voltage DC supply.

Therefore power consumption for selection of the Low voltage DC supply should include,

1. Power consumption of the drive and associated components, refer to the User Guide

2. Elevator controller and auxiliary control within the electrical panel system

4. Motor operation (Rescue operation or continuous operation)

5. Motor brake control, lifting and holding

6. Motor power consumption (consider operation in direction of load or against direction of load)

Blocking diode D1

A blocking diode should be fitted in the external connection from the external Low voltage DC supply to the DC Bus of the drive. This blocking diode is used to prevent energy from being returned back from the motor and drive into the external Low voltage DC supply during operation.

This blocking diode can be emitted if the external Low voltage DC supply has inbuilt protection to prevent this power flow back from the motor and drives DC Bus during operation.

Drive voltage rating

200 V

Diode type Working current (A)

Maximum operating

DC Bus voltage (Vdc)

415

400 V

575 V

690 V

Standard recovery

2 x Drive rated current

830

990

1190

A suitable supplier for the blocking diode can be Semikron™ with the SKKE isolated base module diode. The diode must be mounted on a suitable heatsink, refer to the manufacturer’s data sheet for further details on selection and details of suitable heatsinks for mounting.

P a g e | 51

6.2 AC, DC supply protection

6.2.1 AC supply fusing (F1, F2, F3)

Fuses are always required on AC connections, and must be of IEC class gG or gR, or UL class J, for further detail refer to the Drive User Guide for recommended AC supply fuses.

The AC supply fuses detailed in the Drive User Guide are based on the maximum input current to the drive which can be affected by the supply voltage and supply impedance. The typical input current is given based on the highest level of continuous output current and provided to aid calculations for maximum power flow and power loss. The values of typical input current are also stated for a balanced AC supply. In the event of failure, the fusing will prevent fire by limiting the amount of energy allowed into the drive and take into consideration maximum peak accelerating current and continuous rms current.

supply

As with the AC supply fusing the UPS AC supply fuses are also always required on the AC supply connections, and should be of the correct IEC class gG or gR, or UL class J, refer to the UPS supplier user documentation for the recommended AC supply fuses.

The AC supply fuses used for the UPS must be the recommended fuses based upon the UPS rated current and voltage rating. In the event of failure, the fusing will prevent fire by limiting the amount of energy allowed into the UPS from a potential internal or output fault.

NOTE:

It is the responsibility of the system designer and installer to ensure the correct AC fuse protection is fitted for the UPS supply and connections to the drive.

6.2.3 Low voltage DC supply fusing (F4, F5)

For the Low voltage DC supply, DC fuses are required to protect both the Low voltage DC supply and the connections to the drive. Ensure the DC fuses are placed in both the “+” and “-” DC Bus connections to the drive. The fuse protection should be placed as close as possible to the drive to provide protection for both the Low voltage DC supply and the cable connections to the drive.

The DC fuse selection should be based on the current and voltage rating of the Low voltage DC supply taking into consideration the cable ratings for the connection from the Low voltage DC supply to the drive.

NOTE:

It is the responsibility of the system designer and installer to ensure the correct fuse protection is fitted for the Low voltage DC supply and connections to the drive.

6.2.4 External user 24 Vdc fusing (F6)

For operation in Low voltage DC mode and backup operation of the drive an external user 24 Vdc supply is required. The 24 Vdc supply is used to supply power to the control circuit PCB for drive frame sizes 3 and larger it also supplies power to the Power Stage for drive frame sizes 6 and larger, and for drive frame sizes 9 and larger it supplies the drives heatsink cooling fans.

Refer to section 5.4 for recommended fuse protection.

NOTE:

It is the responsibility of the system designer and installer to ensure the correct cables are selected for the connections from the external user 24 Vdc supply to the drive considering the recommended fuse protection.

P a g e | 52

The drive in Low voltage DC mode uses external contactors for selection of the power supply, these power supplies being the AC supply, Low voltage DC supply, UPS supply and External user 24 Vdc supply.

The external contactors are also required to support the drives seem-less external contactor control for safe operation from the AC supply to the Low voltage DC supply, refer to System 3 and System 4 in section 6.5 following for further details and Pr 06.068, Pr 06.069 and Pr 06.070

External contactors

Ref Description Notes

K1

K2

K3

AC supply contactor + feedback

Low voltage DC supply contactor + feedback

UPS supply contactor

External user 24 Vdc supply contactor

Contactor to connect and disconnect AC supply to the drive. Feedback on this contactor is required for seem-less control from the drive

Contactor to connect and disconnect Low voltage DC supply to the drive. Feedback on this contactor is required for seem-less control from the drive

Contactor to connect and disconnect UPS supply, controlled from Elevator controller, must be synchronized with the AC supply

(K1) to the drive.

Optional contactor allows Low voltage DC to be disabled and external user 24 Vdc to be isolated. Should be synchronized with selection of Pr 06.072, Pr 06.067 and

Pr 06.068

The external contactor selection is not detailed in this document, selection of the external contactors are being dependent upon many factors such as the power supplies and the drive system specifications such as operating voltage and current and profile duty.

NOTE:

It is the responsibility of the system designer and installer to select the correct external contactors for

Low voltage DC operation based upon the drive system and power supplies.

6.4 External soft start circuit

6.4.1 Drive frame sizes 3 to 6

When drive frame sizes 3 to 6 operate from either an AC or DC supply there is an internal soft start circuit with charging resistor which limits the inrush current when the power supply is connected. In this case no external soft start circuit is required for correct operation.

For correct operation with the drive frame sizes 3 to 6 when switching from the Low voltage DC supply to the AC supply the drive must go into an Under Voltage state which will enable the internal soft start circuit and limit the inrush current.

NOTE:

It is the responsibility of the system designer and installer to select the correct external contactors for

Low voltage DC operation based upon the drive system and power supplies.

6.4.2 Drive frame sizes 7 and larger

When drive frame sizes 7 and larger operate from an AC supply the drives internal half controlled rectifier limits the inrush current when the supply is connected. This internal half controlled rectifier also limits the inrush current when operating with a UPS supply.

P a g e | 53

For operation with a Low voltage DC supply connected directly to the drives DC Bus an external soft start circuit is required to limit the inrush current. Failure to fit an external soft start circuit may result in permanent damage to the Drive, Low voltage DC supply and circuit. The external soft start circuit required should be selected based upon the external Low voltage DC supply.

NOTE:

It is the responsibility of the system designer and installer to select the correct external soft start circuit for drive frame sizes 7 and larger for Low voltage DC operation where the Low voltage DC supply is connected directly to the drives DC Bus.

6.5 System configurations

The following diagrams show examples of different system configurations possible with the drive and

Low voltage DC mode using either external batteries or an external UPS. The choice of system configuration depends on the drive frame size, Low voltage DC supply and preferred control during operation (drive managing seem-less control or Elevator controller managing transition from AC supply to Low voltage DC supply).

6.5.1 System 1 _ Low under voltage threshold select drive frame sizes 3 to 6 (Battery)

The followng configuration can be used where the Elevator controller is managing the selection of both the AC supply and Low voltage DC supply. Soft start and inrush current is managed internally by the drive for connection of both the AC supply and Low voltage DC supply. Discharging time of the

DC Bus when going from the Low voltage DC supply to the AC supply must be managed by the

Elevator controller ensuring the drives internal soft start is active.

P a g e | 54

Low voltage mode can be enabled and disabled if required along with connection of the external user

24 Vdc supply by the Elevator controller following transition to the Low voltage DC supply either via the drives digial inputs and comms.

Pr 06.044 Active supply

Power supply status

Pr 06.065

Standard under voltage threshold

Pr 06.066

Low under voltage threshold

Pr 06.067

Low under voltage threshold select

Pr 06.073

Pr 06.074

Braking IGBT lower threshold

Braking IGBT upper threshold

Pr 06.075

Low voltage braking IGBT threshold

Pr 06.076

Low voltage braking IGBT threshold select

Low voltage DC operation using Low under voltage threshold select

Brake control voltage setup and low voltage braking select.

6.5.2 System 2 _ Low under voltage threshold select drive frame sizes 7 to 10 (Battery)

The followng configuration can be used where the Elevator controller is managing the selection of both the AC supply and Low voltage DC supply. Soft start and inrush current is managed internally by the drive for connection of the AC supply. An external soft start circuit is required for connection of the Low voltage DC supply.

P a g e | 55

Low voltage mode can be enabled and disabled if required along with connection of the external user

24 Vdc supply by the Elevator controller following transition to the Low voltage DC supply either via the drives digial inputs and comms..

P a g e | 56

P a g e | 57

Pr 06.044 Active supply

Pr 06.065

Standard under voltage threshold

Pr 06.066

Low under voltage threshold

Pr 06.067

Low under voltage threshold select

Power supply status

Low voltage DC operation using Low under voltage threshold select

Brake control voltage setup and low voltage braking select.

Pr 06.073

Braking IGBT lower threshold

Pr 06.074

Braking IGBT upper threshold

Pr 06.075

Low voltage braking IGBT threshold

Pr 06.076

Low voltage braking IGBT threshold select

6.5.3 System 3 _ Seem-less transition AC to DC mode drive frame sizes 3 to 6 (Battery)

The followng configuration can be used where the drive is managing the selection of both the AC supply and Low voltage DC supply. Soft start and inrush current is managed internally by the drive for connection of both the AC supply and Low voltage DC supply. Discharging time of the DC Bus when going from the Low voltage DC supply to the AC supply is managed by the drive ensuring the internal softstart is active.

Low voltage mode can be enabled and disabled if required along with connection of the external user

24 Vdc supply by the Elevator controller following transition to the Low voltage DC supply either via the drives digial inputs and comms.

Pr 06.044 Active supply

Power supply status

Pr 06.065

Standard under voltage threshold

Pr 06.066

Low under voltage threshold

Pr 06.067

Low under voltage threshold select

Pr 06.073

Pr 06.074

Braking IGBT lower threshold

Braking IGBT upper threshold

Pr 06.075

Low voltage braking IGBT threshold

Pr 06.076

Low voltage braking IGBT threshold select

Low voltage DC operation using Low under voltage threshold select

Brake control voltage setup and low voltage braking select.

6.5.4 System 4 _ Seem-less transition AC to DC mode drive frame sizes 7 to 10 (Battery)

The followng configuration can be used where the drive is managing the selection of both the AC supply and Low voltage DC supply. Soft start and inrush current is managed internally by the drive for connection of the AC supply. An external soft start circuit is required for connection of the Low voltage DC supply.

P a g e | 58

Low voltage mode can be enabled and disabled if required along with connection of the external user

24 Vdc supply by the Elevator controller following transition to the Low voltage DC supply either via the drives digial inputs and comms..

P a g e | 59

Pr 06.044 Active supply

Pr 06.065

Standard under voltage threshold

Pr 06.066

Low under voltage threshold

Pr 06.067

Low under voltage threshold select

Pr 06.073

Braking IGBT lower threshold

Pr 06.074

Braking IGBT upper threshold

Pr 06.075

Low voltage braking IGBT threshold

Pr 06.076

Low voltage braking IGBT threshold select

Power supply status

Low voltage DC operation using Low under voltage threshold select

Brake control voltage setup and low voltage braking select.

Low under voltage threshold select drive frame sizes 3 to 6 (UPS supply)

The followng configuration can be used where the Elevator controller is managing the selection of both the AC supply and UPS supply. Soft start and inrush current is managed internally by the drive for connection of both the AC supply and UPS supply. Discharging time of the DC Bus when going from the Low voltage DC supply to the AC supply must be managed by the Elevator controller ensuring the drives internal soft start is active.

Low under voltage threshold select drive frame sizes 7 to 10 (UPS supply)

The followng configuration can be used where the Elevator controller is managing the selection of both the AC supply and UPS supply. Soft start and inrush current is managed internally by the drive for connection of the AC supply and the UPS supply. To over come rectifer phase loss trips L2 and L3 should be connected together and Pr 06.048 — Phase Loss Input Detection Level should be disabled.

F6

K3

External user

24 Vdc supply

24 Vdc supply

F1

F2

F3

High voltage

AC supply

K1

K2

Motor

DRIVE

UPS supply

Low voltage

DC supply

(UPS)

External user 24 Vdc supply

Connection to control

PCB drive frame sizes

3 to 6 and power stage for drive frame size 6

Mains Supply

Low voltage DC supply control + Feedback

AC power supply control + Feedback

Pr 06.066 Low under voltage threshold

Pr 06.067 Low under voltage threshold select

Pr 06.075 Low voltage braking IGBT threshold

Pr 06.076 Low voltage braking IGBT threshold select

LIFT CONTROLLER

Low voltage DC mode _ Drives frame sizes 6 and smaller _ Low under voltage threshold select

Braking resistor

P a g e | 60

NOTE:

For drive frame sizes 7 and larger as shown above, when operating with a single phase UPS the power supply should be connected to L1 and L2. Input L3 should be connected directly to L2 to avoid a supply loss fault, and to allow the half controlled rectifier to start up and limit the inrush current for operation with the single phase UPS.

Low voltage mode can be enabled and disabled if required along with connection of the external user

24 Vdc supply by the Elevator controller following transition to the UPS supply either via the drives digial inputs and comms.

P a g e | 61

Parameter Description

Pr 06.044

Active supply

Pr 06.072 User supply select

Pr 06.065 Standard under voltage threshold

Pr 06.066 Low under voltage threshold

Pr 06.067 Low under voltage threshold select

Pr 06.073 Braking IGBT lower threshold

Pr 06.074 Braking IGBT upper threshold

Pr 06.075 Low voltage braking IGBT threshold

Pr 06.076 Low voltage braking IGBT threshold select

Notes

Power supply status

External user 24 Vdc supply

Low voltage DC operation using Low under voltage threshold select

Brake control voltage setup and low voltage braking select.

1 Electrical connections and configuration can change for the different drive frame sizes.

• Drive frame size 3 to 6 have a diode rectifier input stage with an internal soft start circuit which can be limit the inrush current for both AC and DC connected supplies

— Consider inrush current in control sequence

• Drive frame sizes 7 and larger have a half controlled rectifier which limits the inrush current for AC supplies only, for Low voltage DC supplies an external soft start circuit is required

— External soft start circuit required for Low voltage DC supply

— Consider inrush current in control sequence

2 The power supplies required for Low voltage DC operation can include the following

• AC

• UPS supply or Low voltage DC supply

• External user 24 Vdc power supply

Control PCB (drive frame sizes 3 and larger)

Power Stage (drive frame sizes 6 and larger)

Heatsink cooling fans (drive frame sizes 9 and larger)

— External contactors are required to transition between power supplies

— Fuse protection must be supplied to protect power supplies and cabling

3 Low voltage DC operation can be configured in the following configurations

• Low voltage DC mode with selection of Low under voltage threshold with Low voltage DC supply, batteries

— Sequencing controlled by the Elevator controller

• Low voltage DC mode with selection of Low under voltage threshold using UPS supply

— Sequencing controlled by Elevator controller

• Low voltage DC mode using drive on-board control to manage seem-less control from AC supply to Low voltage DC supply, batteries

— Sequencing of the power supplies controlled by drive

— This mode does not currently support operation with a Vac UPS supply

4 Configuration both the AC supply and Low voltage DC supply may be connected at the same time for seam-less change over from AC mode to DC mode with all drive frame sizes.

• Seamless changeover from DC mode to AC mode is possible with drive frame size 7 and larger.

• Seamless changeover is not supported on the drive for operation with an AC supply and Vac

UPS supply.

• The drive does NOT have to be disabled during change over from the AC supply to the Low voltage DC supply.

• Drive frame sizes 3 to 6 must be disabled for the change over from the Low voltage DC supply to the AC supply in order to allow the internal soft start circuit to become active and limit the AC supply inrush.

P a g e | 62

• For Low voltage DC operation with a loss of the AC supply all relays and contactors must be driven from a maintained supply.

5 As the drives DC Bus voltage varies the motor power available varies in proportion to the voltage.

• The Low voltage DC supply should be selected to deliver both the required power to the motor along with and additional loads within the drive system.

6 The power that may be dissipated in a brake resistor varies with the square of the voltage.

• To enable the maximum brake power to match that from the motor in Low voltage DC mode, the brake resistor value must be reduced in proportion to the voltage during Low voltage DC operation.

7 During Low voltage DC operation standard power down save parameters are not saved. Where the external user 24 Vdc is connected to the drives Control PCB power down save parameters are also not saved.

• To save parameters whilst in Low voltage mode or backup mode where the external user 24

Vdc supply is connected to the drives Control PCB set parameter mm.xxx = 1001

7 Diagnostics

7.1 Keypad

The keypad display provides information on Trip, Alarm and Status indications for further details refer to the Drive User Guide.

NOTE: Drive trips can be manually reset using the KI-Keypad, using communication protocols or

using the drives auto reset feature. The manual drive reset is carried out pressing the RED reset button on the KI-Keypad.

The drive has a status LED on the front of the drive which provides a visual indication of the drive status. The status LED indicator will flash with a 0.5 s duty cycle if the drive has tripped.

1. Non-flashing: Normal status

2. Flashing: Trip status

Pr 10.001— Drive OK parameter provides the drive Status, and the drive Trips can be read in

Pr 10.020 — Trip 0 the most recent, through to Pr 10.027 — Trip 9.

indications

The drive status LED indicator will flash during a drive trip and the keypad will display the trip code.

During a trip condition where a keypad is being used, the upper row of the display indicates that a trip has occurred and the lower row displays the trip string. Some trips have a sub trip number to provide additional information about the trip. If a trip has a sub trip number, the sub trip number is flashed alternately with the trip string unless there is space on the second row of the keypad display for both the trip string and the sub trip number in which case both the trip string and sub trip information are displayed and separated by a decimal place.

P a g e | 63

The drive stores all drive trips along with date and time stamping information in Menu 10.

Trip log

Pr 10.020 — Trip 0 through to Pr 10.027 — Trip 9 store the 10 most recent trips that have occurred where Trip 0 (Pr 10.020) is the most recent and Trip 9 (Pr 10.027) is the oldest. When a new trip occurs and is captured it is written to Pr 10.020 — Trip 0 and all the other trips move down the log, with oldest being lost.

Sub trip numbers

Some trips have sub-trip numbers which provide more detail on the possible cause for the trip. If a trip has a sub trip number its value is stored in the sub trip log, i.e. Pr 10.070 — Trip 0, sub trip number to

Pr 10.079 — Trip 9, sub trip number. If the trip does not have a sub-trip number zero will be stored in the sub-trip log.

Date and time

The date and time when each trip occurs is stored in the date and time log for all trips from Trip 0 through to Trip 9. The format of the date and time stamping is as follows. The date and time are taken from Pr 06.016 — Date and Pr 06.017 — Time.

Date: date — month — year

Time: hours : minutes : seconds

31 — 12 — 99

23 : 59 : 59

Powered up time

When a trip occurs the time in milliseconds since the drive was powered up is also stored in Pr 10.013

— Trip Time Identifier since powered up. The time will roll over when it reaches 2

31 value of 1 is written.

— 1, if the time is 0 a

7.4 Behaviour of drive when tripped

If a drive trip occurs, the following read only parameters are frozen until the trip is reset. This is to assist in diagnosing the cause of the trip. If the parameter freeze is not required this can be disabled with Pr 10.037 — Action On Trip Detection.

Parameter Description

Pr 03.003 Speed Loop Error

Pr 03.004 Speed Loop Output

Pr 04.001 Total Output Current

Pr 04.002 Torque Producing Current

Pr 04.017 Magnetization Current

Pr 05.001 Output Frequency

Parameter Description

Pr 05.002

Pr 05.003

Pr 05.005

Pr 07.001

Pr 07.002

Pr 07.003

Output Voltage

Output Power

DC Bus Voltage

T5 T6 Analog Input 1

T7 Analog Input 2

T8 Analog Input 3

Drive trips can be manually reset using the KI-Keypad, using communication protocols or using the drives auto reset feature. The manual drive reset is carried out pressing the RED reset button on the

KI-Keypad. To reset a drive trip using communication protocols set Pr 10.033 — Drive Reset = On (1) followed by Off (0).

Auto reset drive trip

An auto reset can be set-up in the drive to reset a trip normally reset through the keypad or using a communication protocol. The auto reset feature can be configured to carry out a number of auto reset attempts, along with a defined time between each of the auto reset attempts.

Pr 10.034 = 0

Pr 10.034 = 1 to 4

No auto reset attempts are made

1 to 4 auto reset attempts are carried out

Pr 10.034)= 6 Internal reset counter is held at zero and the number of auto reset attempts is infinite

The internal auto reset counter is only incremented when the trip being reset is the same as the previous trip otherwise the counter is reset to 0. When the internal reset counter reaches the programmed value any further trip of the same value will not cause another auto reset. Pr 10.035 —

Auto Reset Delay defines the time in seconds between each auto reset attempt.

P a g e | 64

NOTE:

An auto reset will not occur after any trips with priority levels 1, 2 or 3 and if there has been no trip for

5 minutes the internal auto reset counter is cleared,

NOTE:

When a manual reset is carried out the auto reset counter is reset to zero.

1

1

2

3

4

5

5

6

6

6

Status indications

Comments

Internal fault, HF01 — HF20

Stored HF trip

These are internal faults which cannot be reset, all drive features are rendered inactive. If a keypad is installed this will display the active HF trip. Trips are not stored.

This trip can only be cleared by entering 1299 into parameter mm00 followed by a reset.

These trips cannot be reset. Non-re-settable trip, trip numbers 218 to 247

Volatile memory fault,

EEPROM Fail

This trip can only be cleared by entering to 1233 or 1244 into parameter mm00 or if Load Defaults is set to a nonzero value.

Internal 24 Vdc supply,

PSU 24 V

NV Media Card trips, trip numbers 174, 175 and 177 to 188

These trips are priority 6 during power up.

Position feedback power supply, Encoder 1

This trip can override Encoder 2 to Encoder 6 trips.

Trips with extended reset times OI ac, OI Brake and OI dc

Phase loss and DC Bus protection, Phase Loss and

OHt DC Bus

Standard trips, All other trips

These trips can only be reset 10 s after the trip was initiated.

The drive will attempt to stop the motor before tripping phase loss unless disabled. The drive will attempt to stop the motor before tripping OHt DC Bus.

Upper row string

Inhibit

Ready

output stage

The drive is inhibited and cannot be run. The Safe Torque Off (STO),

Drive enable signal is not applied to Control terminal 31

The drive is ready to run, with the drive enable applied, but the drive is not active as the run signal has not been applied

Run The drive is active and running

Supply Loss Supply loss condition has been detected

Deceleration The motor is being decelerated to zero speed / frequency following removal of the speed selection / direction / run signal.

Trip The drive has tripped and the motor is stopped. The trip code appears in the lower display

Under voltage

The drive is in an under voltage state (low voltage or high voltage mode)

Phasing The drive is performing a ‘phasing test on enable’

Disabled

Disabled

Enabled

Enabled

Enabled

Disabled

Disabled

Enabled

P a g e | 65

Option module, NV Media Card and other status indications

First row string Second row string Status

Booting Parameters Parameters are being loaded

Drive parameters are being loaded from a NV Media Card

Booting Option Program User program is being loaded

User program is being loaded from a NV Media Card to the option module in slot X

Writing To NV Card Data is being written to the NV media card

Data is being written to a NV media card to ensure that its copy of the drive parameters is correct because the drive is in Auto or Boot mode

Waiting For Power Systems Waiting for power stage

The drive is waiting for the processor in the power stage to respond after power up

Waiting For Options Waiting for an option module

The drive is waiting for the options modules to respond after power up

Uploading From Options Loading parameter database

At power up, it may be necessary to update the parameter database held by the drive because an option module has changed or because an applications module has requested changes to the parameter structure. This may involve data transfer between the drive and option modules.

Alarm indications

Alarm string Description

Brake Resistor Brake resistor overload, Braking Resistor Thermal Accumulator (Pr 10.039) in the drive has reached 75.0 % of the value at which the drive will trip.

Motor

Overload

Motor Protection Accumulator (Pr 04.019) in the drive has reached 75.0 % of the value at which the drive will trip and the load on the drive is > 100 %.

Drive Overload Drive over temperature. Percentage Of Drive Thermal Trip Level (Pr 07.036) >

90 %.

Autotune The autotune procedure has been initialized and an autotune in progress

In any mode, an alarm is an indication given on the display by alternating the alarm string with the drive status string on the first row and showing the alarm symbol in the last character in the first row. If an action is not taken to eliminate a alarm except «Autotune» the drive may eventually trip. Alarms are not displayed when a parameter is being edited, but the user will still see the alarm character on the upper row.

P a g e | 66

7.5 Troubleshooting and Identifying Faults

The following section provides some guidance for troubleshooting and fault finding within the Low voltage DC system and operation.

Reported fault Root cause Recommended actions

Under voltage state

AC supply loss

Low voltage DC supply loss

UPS supply loss

Phase loss trip

Low voltage DC supply loss

Low voltage DC with seem-less transition from AC mode to DC mode

AC supply loss

Power supply has been lost and the drives DC Bus voltage has dropped below the active under voltage threshold in either

Pr 06.065 — Standard under voltage threshold or Pr 06.066 — Low

under voltage threshold. Pr 06.066 — Low under voltage threshold is active when Pr 06.068 — Low voltage supply mode enable = On (1).or

Pr 06.067— Low under voltage threshold = On (1).

Recommended actions:

• Check power supply connections and drive configuration

During operation with a Low voltage DC supply and where Pr 06.068

— Low voltage supply mode enable = On (1) for drive frame sizes 3 to

6 the drive will remain in the under voltage state waiting for the drive enable for Low voltage DC operation.

Recommended actions:

• Carry our start … Speed, Direction, Drive enable …

During operation with a Low voltage DC supply and where Pr 06.067—

Low under voltage threshold select = On (1) or Pr 06.068 — Low

voltage supply mode enable = On (1) ensure Pr 06.066 — Low under

voltage threshold is setup to the correct level for the Low voltage DC operation.

Recommended actions:

• Check supply voltage level and under voltage threshold

Ensure external contactor control is connected and contactor control is correct from the drive when Pr 06.068 — Low voltage supply mode

enable = On (1), also ensuring feedback is connected to the drive

Recommended actions:

• Check both Pr 06.069 and Pr 06.070 for contactor control

This trip indicates an input phase loss or large supply imbalance has been detected. Phase loss can be detected from the supply for drives with a half controlled thyristor input stage, drive frame size 7 and above. If phase loss is detected the drive trips immediately and the xx part of the sub-trip is set to 01.

In all frame sizes of drive phase loss is also detected by monitoring the DC Bus voltage ripple. In this case the drive attempts to stop before tripping unless bit 2 of Pr 10.037 — Action On Trip Detection =

1. When phase loss is detected by monitoring the DC Bus voltage ripple the xx part of the sub-trip is zero.

Source xx zz

Control system

00 0 00: Phase loss detected from

DC Bus ripple level

Power system (1)

01 Rectifier number

00: Phase loss detected directly from the power supply

(1) Input phase loss detection can be disabled when the drive is required to operate from the Low voltage DC supply or from a single phase UPS supply in Pr 06.047— Input Phase Loss Detection Mode

Enable.

Recommended actions:

• Check the AC supply voltage balance and level at full load.

• Check the DC Bus ripple level with an isolated oscilloscope.

• Check connection of L2 ⇒ L3 for UPS supply with drive frame sizes 7 and larger

• Check the output current stability.

• Reduce the motor load.

• Disable the input phase loss detection

P a g e | 67

Reported fault

PSU 24 trip on power up for Low voltage DC operation

Power down parameters not saved

Seem-less Low voltage DC operation from

Elevator drive not operating

Root cause

External user 24 Vdc supply loss to Control

PCB

External user 24 Vdc supply overloaded

Drive operating in

Low voltage DC mode

Drive operating with external user 24 Vdc supply connected to

Control PCB

External contactor control

External contactor feedback

I/O overload at drive power up / during operation

Drive internal 24 Vdc supply is being overloaded

Recommended actions

Failure to connect the external user 24 Vdc supply on the Control

PCB of drive frame sizes 3 and larger with Pr 06.072 — User Supply

Select = On (1) or O12 —Low Voltage Supply Mode Enable = On

(1).or Pr 06.067 — Low Under Voltage Threshold Select = On (1) will result in a “PSU 24” trip.

Recommended actions:

• Connect the external user 24 Vdc supply to Control PCB connections 1 / 2

• Connect the external user 24 Vdc supply to supplement the internal 24 Vdc supply

An external user 24 Vdc supply is required for Low voltage DC operation and dependent upon drive frame size can supply the

Control, Power and Heatsink cooling fans

Recommended actions:

• Ensure the external user 24 Vdc supply is sufficiently rated

Power down save parameters will not be saved during Low voltage

DC operation where the DC Bus voltage is below the level set in

Pr 06.065 — Standard under voltage threshold and does not pass through this level prior to power down.

Recommended actions:

• To save parameters set parameter

mm.xxx

= 1001.

Power down save parameters will not be saved during Low voltage

DC operation where the external user 24 Vdc is connected to the

Control PCB.

Recommended actions:

• To save parameters set parameter

mm.xxx

= 1001.

For seem-less control an external supply contactor is required in either the AC supply connection (drive frame sizes 3 to 6) or DC supply connection (drive frame sizes 7 and larger).

Recommended actions:

• Ensure the external contactor is connected correctly and is being sequenced correctly, also refer to parameter Pr 06.069 — Under

Voltage System Contactor Output and Pr 06.065 — Standard

Under Voltage Threshold and Section 6.5 System configurations

For seem-less control by the drive feedback from the AC supply contactor (drive frame sizes 3 to 6) or DC supply contactor (drive frame sizes 7 and larger) is required.

Recommended actions:

• Ensure the feedback from the external supply contactor is connected correctly to the drive and is sequenced correctly, refer to Pr 06.070 Under Voltage System Contactor Closed and

Pr 06.065 — Standard Under Voltage Threshold and Section 6.5

System configurations

The drives internal user 24 Vdc supply has been overloaded from control terminal 22 (24 Vdc 100 mA) and control terminal 24 if common connection delivering 24 Vdc 200 mA.

Ensure the Low voltage DC circuit is not resulting in the internal 24

Vdc supply being overloaded due to the loading on the drives control

I/O. Connect the external user 24 Vdc supply which will supplement the internal 24 Vdc supply.

Recommended actions:

• Ensure no faults on the control circuit to the drive being supplied from the drives internal 24 Vdc supply.

• Ensure the Low voltage DC circuit and any auxiliary loads are not resulting in the overload trip.

• Connect the external user 24 Vdc supply if the overload is present with only control terminal 22 (24 Vdc 100 mA) being used for the control circuit.

P a g e | 68

Reported fault

Waiting For Power

Systems on power up for Low voltage

DC operation

Incorrect direction

Speed error

Distance error

OI ac on removal of

24 Vdc for Low voltage DC operation

OHT power during

Low voltage DC operation

Root cause Recommended actions

External user 24 Vdc supply loss to Power

Stage

Failure to connect the external user 24 Vdc supply on the Power

Stage of drive frame sizes 6 and larger will result in “Waiting For

Power Systems” to be displayed on the drives keypad.

Recommended actions:

• Connect the external user 24 Vdc supply to Power Stage of the drive, connections 51 / 52

Elevator incorrect operating direction

Roll back and stalling on brake release

Elevator fails to reach contract speed

Disabling external user 24 Vdc supply to

Power Stage, drive frame sizes 6 and larger

Following a start and brake release the Elevator moves in the incorrect direction resulting in a speed or distance error. This could be the result of motor torque on brake release or the load measurement.

Recommended actions:

• Ensure the Low voltage DC supply or UPS are not being overloaded due to the car loading

• Ensure the motor is fully magnetised

Following a start and brake release the Elevator moves in the incorrect direction resulting in a speed or distance error. This could be the result of motor torque on brake release.

Recommended actions:

• Ensure the Low voltage DC supply or UPS are not being overloaded resulting in reduced starting torque

• Use the Load measurement feature to move in the direction of least load.

Following a start and brake release the Elevator moves in the correct direction however a speed or distance error occurs during acceleration to the final speed demand. This could be the result of the Low voltage DC supply or UPS.

Recommended actions:

• Ensure the Low voltage DC supply or UPS are not being overloaded due to the car loading

• Ensure the Low voltage DC supply or UPS are not being overloaded due to the speed demand being too high

On drive frame sizes 6 and larger removing the external user 24 Vdc supply alone to the Power Stage connections 51 / 52 may result in an

OI ac trip.

Recommended actions:

• Ensure the external user 24 Vdc supply is being removed from the Power Stage 51 / 52 and the Control PCB 1 / 2 at the same time.

Heatsink cooling fans On drive frame sizes 9 and larger an external user 24 Vdc supply is required for the heatsink cooling fans during operation with a Low voltage DC supply or UPS where the final DC Bus level is lower than the AC supply loss.

Recommended actions:

• On drive frame sizes 9 and larger ensure the external user 24

Vdc supply is connected to the Power Stage 61 / 62 for the heatsink cooling fans

• Ensure the external user 24 Vdc supply is sufficiently rated for the heatsink cooling fans

P a g e | 69

8 Index

A

Adjusting parameters…………………………….…..5

AC line reactor……………………………………….53

AC supply contactor…………………………………18

AC supply loss………………………….12, 48, 67, 74

AC supply mode……………………………………..11

AC supply mode with seem-less transition to Low voltage DC mode + contactor control……………….16

Active supply…………………………………………28

Auto tune……………………………………………..21

B

Battery…………………………………………7, 21, 60

Blocking diode………..……..………………18, 57, 60

Braking……………………………………………………..44

Braking IGBT…………………….……,..………23, 40

C

Charging current………………………….6, 9, 33, 40, 60

Commissioning drive ……….………………………4

Contactor…………………………………………..6, 8

Continuous operation…………………..…..6, 10, 53

Control PCB………………………..…………….6, 55

D

DC Bus voltage………………………….……………7

DC Bus charge system…………………………31, 32

DC Bus reactor………………………………………44

Discharge……………………..……………….4, 9, 43

Drive control system…………………………………29

DC supply range……………………………………………7

E

Elevator controller……………………………………20

Enable conditions……..…………………………….18, 19

Estimated value for motor speed………………….22

External low voltage supply…………………………53

External user 24 Vdc supply……………..…….…..20

External components …………………………………8

F

Feedback………………………………………..59, 74

Field weakening region……………………………..21

Final drive enable………….………………………..18

G

Ground connections…………………………………55

Grounded DC supply………………………………..53

H

Heatsink cooling fans…………………..7, 20, 54, 76

Hysteresis………………………………………30, 33

I

Inrush current……………………………8, 13, 59, 69

Isolated DC supply…………………..………………53

L

Level of torque…………..…………….13, 21, 71, 76

Limit the speed……………………………………….22

Low under voltage threshold…………………..……14

Low under voltage threshold select………….……15

Low voltage braking IGBT threshold………………41

Low voltage DC mode…………………………..23, 37

Low voltage supply system contactor……………..36

M

Magnetize the motor ……….……………………….22

Modes or operation………………………………………6

Motor nameplate………………………………………..21

Maximum allowed supply voltage…………….11, 15

Maximum speed………………………………..21, 26

O

Operating states…………………………………………….18

Operating time of the UPS……………..….13, 25, 27

Over speed protection……………………………4, 21

Over voltage………………………………….7, 14, 26

P

Parameters……………………………………….5, 23

Peak supply voltage……………………………………….11

Phase loss input detection……………23, 66, 71, 77

Power down save……………………………………13

Power Stage …………………………………………54

Power supply brownout……………………………..15

Power supply control………………………………..30

Power supply requirements…………………………57

Protection……………………………………………..58

Pre charging………………………………………9, 10

R

Rescue operation…………………………………….9

Ripple and noise…………………………………….53

Running the motor………………………………………..21

S

Seem-less control……………………………………16

Slow rectifier charge rate……………………………40

Soft start circuit………………………….…16, 57, 68

Standard under voltage………………………..12, 30

Stator resistance……………………………………………21

Stored charge……………………..…………………..5

Supply loss level……………………………………..12

T

Transition from AC supply mode………………………..9

U

Under voltage…………………………………………12

Under voltage contactor………………….…………33

Under voltage system……………………………….18

Under voltage threshold select..……………………38

UPS…………………………………………………….57, 66

V

Voltage transient……………………………………………11

Control Techniques Product Marketing Literature Download Control Techniques Brochures, Fliers & Catalogs
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SI-PROFINET V2	1	pdf	1.77 MB	EN	Download
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Unidrive M Frame 3 and 4 Power Installation Guide	7	pdf	6 MB	EN	Download
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Unidrive M100 to M400 frame 1 to 4 Power Installation Guide	5	pdf	6 MB	EN	Download
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Engineering Guide to Electromagnetic Compatibility for VFDs	6	pdf	2.93 MB	EN	Download
Engineering Guide to Harmonics Engineering	6	pdf	2.66 MB	EN	Download
Engineering Guide to Safe Torque Off	6	pdf	2.01 MB	EN	Download
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Comms Cable Driver	1.1	zip	2.61 MB	EN	Download
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CTScope	v02.06.02	zip	29 MB	EN	Download
Machine Control Studio PLC Programming Software v01.11.03	V01.11.03	zip	1358 MB	EN	Download
SI-EtherCAT and Digitax HD M753 XML Files	V01.03.05	zip	230 KB	EN	Download
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Power Module Frame 12 2D Drawings .dxf		zip	1.50 MB	EN	Download
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Power Module Frame 12 3D Drawings .stp		zip	42 MB	EN	Download
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Automation I/O Expansion Installation Sheet	2	pdf	775 KB	EN	Download
Option Installation Sheet — Automation (Apps)	6	pdf	208 KB	EN	Download
Option Installation Sheet — Fieldbus	10	pdf	2.18 MB	EN	Download
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M200 to M400 Power Firmware Frame 5 to 9	V1.5.0.52	zip	1.19 MB	EN	Download
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SI-DeviceNet EDS files	01020018	zip	349 KB	EN	Download
SI-Ethernet & Onboard Ethernet Unidrive M, HS and Powerdrive F300 eds file	1.03	zip	151 KB	EN	Download
Unidrive M200 to M400 Ethernet/IP EDS Files	V1.2	zip	5 KB	EN	Download
Application Notes
Title	Issue	File Type	Size	Lang
AN0006 M700 Save and Restore Parameters Rev 3	3	pdf	234 KB	EN	Download
AN0031 Custom Speed Display Scaling	4	pdf	177 KB	EN	Download
AN0052 Keypad Auxiliary Button Programming	4	pdf	141 KB	EN	Download
AN0120 S-Ramp Accel Decel Ramps	1.3	pdf	256 KB	EN	Download
AN0135 — Unidrive UD77 Quick Setup for DeviceNet	1	pdf	86 KB	EN	Download
AN0176 Power Factor Comparison for AC and DC Drives	1	pdf	85 KB	EN	Download
AN0179 — Dynamic Braking Resistor Selection Chart	1.2	pdf	92 KB	EN	Download
AN0181 — Unidrive Family_Speed-Torque Follower	1	pdf	90 KB	EN	Download
AN0266 — Relay Coil Suppression	1	pdf	84 KB	EN	Download
AN0381 — Updating Unidrive M Firmware	1.1	pdf	2.10 MB	EN	Download
AN1016 DBR Parameter Settings	1.1	pdf	294 KB	EN	Download
Analog Input Scaling	2	pdf	169 KB	EN	Download
AOI Macro for RFC-A	1	pdf	691 KB	EN	Download
Frequency I-O	2	pdf	185 KB	EN	Download
Pre and Post Action Delay	1	pdf	98 KB	EN	Download
Simulated Encoder Output	1	pdf	233 KB	EN	Download
Simulated Encoder Output_rev2	2	pdf	233 KB	EN	Download
S-Ramp Unidrive M	1	pdf	121 KB	EN	Download
Unipolar Analog Output	1	pdf	47 KB	EN	Download
CMD / XML Files
Title	Issue	File Type	Size	Lang
ESI – EtherCAT – Digitax HD M753	1.3.5.2	zip	288 KB	EN	Download
SI-EtherCAT and Digitax HD M753 XML Files	V01.03.05	zip	230 KB	EN	Download
SI-EtherCAT ESI Files V01.07.01.06	v01070106	zip	429 KB	EN	Download
Device Descriptor Files
Title	Issue	File Type	Size	Lang
ESI – EtherCAT – Digitax HD M753	1.3.5.2	zip	288 KB	EN	Download
EDS & GSD Files
Title	Issue	File Type	Size	Lang
SI-CANopen V2 V02.03.02.02 EDS files	02.03.2.2	zip	3.91 MB	EN	Download
SI-Profibus V01.04.04.06 GSD Files	01.04.4.6	zip	129 KB	EN	Download
Manuals
Title	Issue	File Type	Size	Lang
SI Safety Option Module	5	pdf	1.30 MB	EN	Download
Certificate of Compliance
Title	Issue	File Type	Size	Lang
Commander C200, C300, Unidrive M Frame size 1 cUL Certificate	2020.11.6	pdf	1019 KB	EN	Download
Commander C200, C300, Unidrive M Frame size 2 cUL Certificate	2020.11.6	pdf	1.01 MB	EN	Download
Commander C200, C300, Unidrive M Frame size 3 cUL Certificate	2020.11.6	pdf	1018 KB	EN	Download
Commander C200, C300, Unidrive M Frame size 4 cUL Certificate	2020.11.6	pdf	1.00 MB	EN	Download
Software Archive
Title	Issue	File Type	Size	Lang
Connect Drive Commissioning Software V02.11.03	V02.11.03	zip	115 MB	EN	Download
Connect Drive Commissioning Software V02.15.06.07 This version does not support the latest V2 Hardware	V02.15.06	zip	219 MB	EN	Download
Connect Drive Commissioning Software	V02.16.05	zip	224 MB	EN	Download
Connect Software bundle (includes: Unidrive M Connect, HVAC Drive Connect, Powerdrive F300 Connect and Elevator Connect) v02.17.01	v02.17.01	zip	235 MB	EN	Download
Connect Software bundle (includes: Unidrive M Connect, HVAC Drive Connect, Powerdrive F300 Connect and Elevator Connect) v02.18.02	02.18.02	zip	454 MB	EN	Download
CTA Basic Motion Templates for MCS and AMC 1.01.08	1.01.08	zip	5 MB	EN	Download
Machine Control Studio	1.6.3	zip	1020 MB	EN	Download
Machine Control Studio PLC Programming	V01.10.07	zip	1248 MB	EN	Download
Machine Control Studio PLC Programming	V1.8.0	zip	1226 MB	EN	Download
Machine Control Studio PLC Programming	V01.10.08	zip	1248 MB	EN	Download
Machine Control Studio PLC Programming	V01.09.04	zip	1234 MB	EN	Download
Machine Control Studio PLC Programming Software v01.10.10	v01.10.10	zip	1251 MB	EN	Download
Machine Control Studio PLC Programming v10.10.09	V01.10.09	zip	1250 MB	EN	Download
Firmware Archive
Title	Issue	File Type	Size	Lang
Firmware version V01.03.04.02 for Unidrive M200 through Unidrive M400	V01.03	zip	1.19 MB	EN	Download
Hardware Revision 2 Firmware V01.54.01.00	V01.54.01	zip	899 KB	EN	Download
MCi2x0 Firmware (Machine Control Studio v01.02.01 or later or v01.02.00 and earlier)	V1.4.1.4	zip	511 KB	EN	Download
MCi2x0 Firmware (Machine Control Studio v01.02.01 or later required) v1.5.1.10	v1.5.1.10	zip	505 KB	EN	Download
MCi2x0 Firmware (Machine Control Studio V01.06.01 to V01.06.03)	V01.08.07	zip	511 KB	EN	Download
MCi2x0 Firmware (Machine Control Studio V01.06.01)	V01.08.06	zip	510 KB	EN	Download
MCi2x0 Firmware (Machine Control Studio V01.06.01)	V01.8.5.4	zip	510 KB	EN	Download
MCi2x0 Firmware (Machine Control Studio V01.12.00.10)	V01120010	zip	533 KB	EN	Download
MCi2x0 Firmware (Machine Control Studio V01.16.00.06)	V01160006	zip	590 KB	EN	Download
MCi2x0 Firmware (Machine Control Studio V1.5.4.26 )	V1.5.4.26	zip	506 KB	EN	Download
SI-Applications Plus Compact firmware v03.06.02	V03.06.02	zip	266 KB	EN	Download
SI-Applications Plus Firmware V02.06.00	V02.06.00	zip	244 KB	EN	Download
SI-Applications Plus Firmware V02.07.00	V02.07.00	zip	246 KB	EN	Download
SI-Applications Plus Firmware V02.11.00	V02.11.00	zip	258 KB	EN	Download
SI-Applications Plus Firmware V020200	02.02	zip	248 KB	EN	Download
SI-Applications Plus Firmware V03.04.02	v03.04.02	zip	261 KB	EN	Download
SI-Applications Plus Firmware V2.4.0	V2.4.0	zip	247 KB	EN	Download
SI-CANopen Firmware	V01.04.00	zip	116 KB	EN	Download
SI-CANopen Firmware V01.03.00.08	V01.03.00	zip	114 KB	EN	Download
SI-CANopen Firmware V1.2.1.10	V1.2.1.10	zip	207 KB	EN	Download
SI-CANopen V2 firmware v02.04.03.02	v02.04.03	zip	173 KB	EN	Download
SI-CANopen V2 Firmware v02.04.05.06	v02.04.05	zip	173 KB	EN	Download
SI-CANopen V2 V02.03.02.02	02.03.2.2	zip	164 KB	EN	Download
SI-DeviceNet Firmware V1.1.0.8	V1.1.0.8	zip	91 KB	EN	Download
SI-EtherCAT ESI Files M200-M700	v01.02.02	zip	261 KB	EN	Download
SI-EtherCAT Firmware V01.01.00.12	01.01	zip	176 KB	EN	Download
SI-EtherCAT Firmware V01.01.02.02	V1.1.2.2	zip	173 KB	EN	Download
SI-EtherCAT Firmware V01.02.00.08	V01020008	zip	163 KB	EN	Download
SI-EtherCAT Firmware V01.02.02.10	v01_02_02	zip	167 KB	EN	Download
SI-EtherCAT Firmware V01.02.08.06	V01.02.08	zip	166 KB	EN	Download
SI-EtherCAT V01.07.01.06	01.07.1.6	zip	184 KB	EN	Download
SI-EtherCAT v01.07.04.02	v01.07.04	zip	186 KB	EN	Download
SI-Ethernet Firmware V01.04.00.10	01.04	zip	264 KB	EN	Download
SI-Ethernet and Unidrive M700 and M702 onboard Ethernet V01.07.03.04	01.07.3.4	zip	258 KB	EN	Download
SI-Ethernet Firmware (Including Unidrive M700 and M702 Onboard Ethernet)	V1.4.2.8	zip	258 KB	EN	Download
SI-Ethernet Firmware (Including Unidrive M700 and M702 Onboard Ethernet) V01.04.01.04	V.1.4.1.4	zip	258 KB	EN	Download
SI-Ethernet Firmware (Including Unidrive M700 and M702 Onboard Ethernet) V01.06.00.22	V1.6.0.22	zip	255 KB	EN	Download
SI-Ethernet Firmware (Including Unidrive M700 and M702 Onboard Ethernet) V01.06.01.04	V1.6.1.4	zip	255 KB	EN	Download
SI-Ethernet Firmware (Including Unidrive M700 and M702 Onboard Ethernet) V01.06.03.04	V1.6.3.4	zip	256 KB	EN	Download
SI-I/O Firmware V02.02.00.10	V02020010	zip	76 KB	EN	Download
SI-I/O Firmware V02.04.03.02	V02.4.3.2	zip	76 KB	EN	Download
SI-I/O Firmware V2.1.1.2	V2.1.1.2	zip	76 KB	EN	Download
SI-Powerlink Firmware V01.01.10.02	V01011002	zip	2.34 MB	EN	Download
SI-Profibus Firmware V01.04.00.10	V1.4.0.1	zip	110 KB	EN	Download
SI-Profinet V2 Firmware	V2.0.4.4	zip	597 KB	EN	Download
SI-Profinet V2 Firmware V02.00.06.02	02.00.06	zip	589 KB	EN	Download
SI-Profinet V2 Firmware V02.01.00.30	V02.01.00	zip	276 KB	EN	Download
SI-PROFINET V2 Firmware V02.01.01.06	V02010106	zip	265 KB	EN	Download
SI-Universal Encoder Firmware V01.00.03.02	V1.0.3.2	zip	79 KB	EN	Download
SI-Universal Encoder Firmware V01.00.04.02	V01000402	zip	79 KB	EN	Download
SI-Universal Encoder Firmware V1.0.1.2	V1.0.1.2	zip	79 KB	EN	Download
Unidrive M HW V2 Firmware v01.54.02	v01.54.02	zip	899 KB	EN	Download
Unidrive M200-M400 Firmware V01.05.xx	01.05.03	zip	1.19 MB	EN	Download
Unidrive M200-M400 User Firmware	V01040402	zip	969 KB	EN	Download
Unidrive M200-M400 User Firmware V01040304	V1.4.3.4	zip	972 KB	EN	Download
Unidrive M200-M400 User V01.05.xx	V01.05.xx	zip	1.19 MB	EN	Download
Unidrive M200-M400 V01.05.xx	V01.05.02	zip	1.19 MB	EN	Download
Unidrive M600 to M702 Firmware	1.19.00	zip	2.00 MB	EN	Download
Unidrive M600 to M702 Firmware V01.18.00.00	V01.18.00	zip	2.00 MB	EN	Download
Unidrive M600 to M70x Firmware	V1.12.3	zip	2.00 MB	EN	Download
Unidrive M600 to M70x Firmware V01.11.01.00	01110100	zip	2.00 MB	EN	Download
Unidrive M600 to M70x Firmware V01.13.00.00	V01.13.00	zip	1.50 MB	EN	Download
Unidrive M600 to M70x Firmware V01.13.01.00	V01.13.01	zip	2.00 MB	EN	Download
Unidrive M600 to M70x Firmware V01.13.02.00	V01.13.02	zip	2.00 MB	EN	Download
Unidrive M600 to M70x Firmware V01.15.00.00	V01.15.00	zip	2.00 MB	EN	Download
Unidrive M600 to M70x Firmware V01.16.01.00	V01.16.01	zip	2.00 MB	EN	Download
Unidrive M600-M70X Firmware	V01.21.01	zip	2.00 MB	EN	Download
Safety
Title	Issue	File Type	Size	Lang
Control Techniques Sistema Library	2.1.0	zip	1.64 MB	EN	Download
Declaration of Conformity
Title	Issue	File Type	Size	Lang
Control Techniques EU 20191781 Ecodesign Regulation — Energy Efficiency Indicators	4	pdf	1.11 MB	EN	Download
EU Declaration of Conformity — Drives Free Standing (DFS)	2	pdf	113 KB	EN	Download
EU Declaration of Conformity — SM-Safety, SI-Safety	2	pdf	106 KB	EN	Download
EU Declaration of Conformity — Unidrive M, Commander, Digitax HD	2	pdf	114 KB	EN	Download
EU Declaration of Conformity under the Machinery Directive — SI-Safety	2	pdf	19 KB	EN	Download
EU Declaration of Conformity under the Machinery Directive — Unidrive M	3	pdf	164 KB	EN	Download
EU Declaration of Conformity under the Machinery Directive — Unidrive M300, M400 & HS30	2	pdf	20 KB	EN	Download
UKCA Declaration of Conformity — Drives Free Standing (DFS)	2	pdf	92 KB	EN	Download
UKCA Declaration of Conformity — SI-Safety and SM-Safety	2	pdf	85 KB	EN	Download
UKCA Declaration of Conformity — Unidrive M, Commander, Digitax HD	3	pdf	121 KB	EN	Download