Yokogawa cx 2000 руководство по эксплуатации

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CX2000 Installation and

Connection Guide

IM 04L31A01-71E 4th Edition

4thEdition: May 2007 (YK)

All Right Reserved, Copyright © 2001

Yokogawa Electric Corporation

Y okogawa Electric Corporation

Thank you for purchasing the CX2000.

This manual contains simple explanations about how to install and connect

the CX2000. For more information about the procedures described herein,

safety precautions, and the CX2000 functions and operation, please refer to

the PDF manual found on the provided CD-ROM.

Installation Procedure

1. Cut the instrument panel according to the diagram below.

Panel Cut Diagram

Units : mm

360 min.

+2

281

0

2. Insert the CX2000 into the front of the panel.

3. Using the mounting brackets, attach the CX2000 to the panel as shown

in the following figure.

First, attach the two mounting brackets and temporarily fasten the

attachment screws. Next, fix the CX2000 in place by tightening the

attachment screws with the appropriate torque (0.7 to 0.9 N-m.). As you

fasten the screws, press the mounting bracket against the case so that

they are in contact with each other.

Screw temporarily

Panel

Mounting

bracket

Attachment

screw

Fix in place

Case

Panel

Mounting bracket

In contact

Front

with each other

Torque driver

(The figure shows the case when

(flat blade)

the mounting brackets are used

Attachment screw

on the top and bottom of the case.)

For details about the CX2000 external dimensions, installation environment,

and more, please refer to the CX2000 User’s Manual (IM 04L31A01-01E)

found on the provided CD-ROM.

4

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Connection Types and Procedures

There are various terminals and connectors on the rear panel of the CX2000. Connecting them to peripheral devices allows you to perform control and measurement operations. Below are the names of each connector and terminal, as

well as connection procedures.

Connecting the Ethernet Interface

•

When only Connecting to a Hub

Connect the CX2000 and the PC through a HUB as shown in the

following figure.

10 Base-T straight cable

Ethernet

interface connector

(Multiple devices can be

CX

connected by using a hub.)

HUB

PC

Ethernet

interface connector

CX

Ethernet cable

10 Base-T straight cable

•

When Connecting to a Preexisting Network

The following figure illustrates an example in which the CX2000 and

a PC are connected to the network. When connecting the CX2000 or

the PC to a preexisting network such things as the transfer rate and

connector type must match. For details, consult your system or

network administrator.

Network

10 Base-T straight cable

(Adapters that support

Ethernet

the 10 Base-T (hubs and

interface connector

routers, for example)

CX

Ethernet cable

Connecting a Monitor to the VGA Output Terminal

(Option /D5)

Supported monitors: VGA monitors and multisync monitors with VGA

display capability.

1. Turn off the CX2000 and the monitor.

2. Connect the CX2000 and the monitor using an analog RGB cable (D-

Sub connector).

3. Turn on the CX2000 and the monitor. The screen of the CX2000 is

displayed on the monitor.

Loop 1 and 2 control output terminal block

Magnet

switch

Loop 3 and 4 control output terminal block

Loop 5 and 6 control output terminal block

Option terminal block (Options /A6, /A4F, /A4FR,

/A6R, /CST1,and /TPS4)

Connecting the Serial Interface

•

RS-232 (When Connecting to a Computer or Other Such Devices)

Verify that the CX2000 has an RS-232 connector, and then connect a serial cable to it. Connect the other end of the serial cable to the other device.

1

2

3 4

5

Pin No. Signal Name

2

3

5

7

6

7

8

9

8

* Pins 1, 4, 6, and 9 are not used.

•

RS-422/485 (When Connecting to a PLC, Temperature Controller or

Other Such Devices)

Verify that the CX2000 has an RS-422/485 connector, and then connect the crimp

connectors (for 4-mm screws) to the terminal strip as illustrated on the right. Do not

expose more than 5 cm of the cable surface from the shield.

With an RS-422/485

PC

CX2000 Rear Panel

VIDEO OUT(VGA)

R1

SSR

Contact

Contact

input (6)

output (6)

R2

Connecting Input/Output Connectors

Magnet

Contact

Contact

switch

input (6)

output (6)

When connecting various input/output connectors for control or

measurement, proceed as described below.

Connect the crimp connectors (for 4-mm screws) to the terminal

strip.

R3

Contact

Contact

1. Turn off the CX2000 and remove the terminal cover.

input (6)

output (6)

2. Wire the signal wires to the terminals.

Attach the terminal cover and secure it with the screws.

Signal Meaning

RD (Received Data)

Received data from the connected device. Input signal.

SD (Send Data)

Send data to the connected device. Output signal.

SG (Signal Ground)

Signal ground.

RS (Request to Send) Handshaking signal used when receiving data from the connected device. Output signal.

CS (Clear to Send)

Handshaking signal used when sending data to the connected device. Input signal.

Four-wire

Shield potential

Connecting the Power Supply

When using electrical wiring, be certain to follow the safety

recommendations prescribed in the CX2000 User’s Manual.

Use a power supply that meets the following conditions:

Rated supply voltage:

Supply voltage range used:

With an RS-232

Rated supply voltage frequency:

Permitted supply voltage frequency range:

L N

Maximum power consumption:

1. Turn OFF the CX2000 and open the cover (transparent) for the

power supply wires.

2. Connect the power cord and the protective ground cord to the power

supply terminals.

Power cord

3. Close the cover (transparent) for the power supply wires and secure

it in place with screws.

For the power supply specifications and connection method of the 24VDC/AC

power supply option, please refer to the CX2000 User’s Manual.

Two-wire

FG

SG SDB SDA RDB RDA

FG

SG SDB SDA RDB RDA

Shield

Shield potential

Shield

100 to 240 VAC

90 to 132, 180 to 264 VAC

50/60 Hz

50/60 Hz ± 2%

75 VA (100 V), 106 VA (240 V)

100-240V

AC~

50/60Hz

106VA MAX

L

N

Protective grounding cord

Control input terminal block (loops 1, 2, 3, 4, 5,

and 6)

Measurement input terminal block (CH1 to 10)

Measurement input terminal block (CH11 to 20)

Document Information: Manufacturer: YOKOGAWA Product Name/ID: CX2000 / #842112 Category: Controller Document Type: Installation And Connection Manual File Path: yokogawa/cx2000_842112.pdf Last Updated: 11 May 2023 Pages: 2
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Service
Manual
DAQSTATION CX1000/CX2000
SM 04L31A01-01E
SM 04L31A01-01E
Yokogawa Electric Corporation
2nd Edition
Important Notice to the User
This manual contains information for servicing YOKOGAWA’s DAQSTATION CX1000/
CX2000. Check the serial number to confirm that this is the correct service manual for
the instrument to be serviced. Do not use the wrong manual.
Before any maintenance and servicing, read all safety precautions carefully.
Only properly trained personnel may carry out the maintenance and servicing described
in this service manual.
Do not disassemble the instrument or its parts, unless otherwise clearly permitted by this
service manual.
Do not replace any part or assembly, unless otherwise clearly permitted by this service
manual.
In principle, Yokogawa Electric Corporation (YOKOGAWA) does not supply parts other
than those listed in the customer maintenance parts list in this service manual (mainly
modules and assemblies). Therefore if an assembly fails, the user should replace the
whole assembly and not components within the assembly (see “Note”). If the user
attempts to repair the instrument by replacing individual components within the
assembly, YOKOGAWA assumes no responsibility for any consequences such as
defects in instrument accuracy, functionality, reliability, or user safety hazards.
YOKOGAWA does not offer more detailed maintenance and service information than
that contained in this service manual.
All reasonable efforts have been made to assure the accuracy of the content of this
service manual. However, there may still be errors such as clerical errors or omissions.
YOKOGAWA assumes no responsibility of any kind concerning the accuracy or contents
of this service manual, nor for the consequences of any errors.
All rights reserved. No part of this service manual may be reproduced in any form or by
any means without the express written prior permission of YOKOGAWA. The contents
of this manual are subject to change without notice.
Note
YOKOGAWA instruments have been designed in a way that the replacement of electronic
parts can be done on an assembly (module) basis by the user. YOKOGAWA instruments
have also been designed in a way that troubleshooting and replacement of any faulty
assembly can be done easily and quickly. Therefore, YOKOGAWA strongly recommends
replacing the entire assembly over replacing parts or components within the assembly. The
reasons are as follows:
• The instruments use high-performance microprocessors, large scale CMOS gate arrays,
and surface-mount components to provide state-of-the-art performance and functions.
• Repair of components can only be performed by specially trained and qualified
maintenance personnel with special highly-accurate tools, including costly ones.
• When taking the service life and cost of the instruments into consideration, the
replacement of assemblies offers the user the possibility to use YOKOGAWA instruments
more effectively and economically with a minimum in downtime.
• Zip is a trademark or registerd trademark of Iomega Corporation in the United States
and/or other countries.
• Adobe and Acrobat are trademarks of Adobe System incorporated.
Disk No. SM13
2nd Edition : August 2002 (YK)
All Rights Reserved, Copyright © 2002, Yokogawa Electric Corporation
SM 04L31A01-01E
1
Introduction
This manual contains information for servicing YOKOGAWA’s DAQSTATION CX1000/
CX2000.
Note
This is the second edition of the manual, dated August 2002.
WARNING
This service manual is to be used by properly trained personnel only.
To avoid personal injury, do not perform any servicing unless you are
qualified to do so. Refer to the safety precautions prior to performing
any service. Even if servicing is carried out according to this service
manual, or by qualified personnel, YOKOGAWA assumes no
responsibility for any result occurring from this servicing.
Safety Precautions
The following general safety precautions must be taken during all phases of operation,
service, and repair of this instrument. Failure to comply with these precautions or with
specific WARNINGS given elsewhere in this manual violates safety standards of design,
manufacture, and intended use of the instrument.
Yokogawa Electric Corporation assumes no liability for the customer’s failure to comply
with these requirements.
WARNING
Use the Correct Power Supply
Ensure the source voltage matches the voltage of the power supply
before turning ON the power.
Use the Correct Power Cord and Plug
To prevent an electric shock or fire, be sure to use the power supply
cord recommend by YOKOGAWA. The main power plug must be
plugged in an outlet with a protective grounding terminal. Do not
invalidate protection by using an extension cord without protective
grounding.
Connect the Protective Grounding Terminal
The protective grounding terminal must be connected to ground to
prevent an electric shock before turning ON the power.
Do Not Impair the of Protective Grounding
Never cut off the internal or external protective grounding wire or
disconnect the wiring of the protective grounding terminal. Doing so
creates a potential shock hazard.
Do Not Operate with Defective Protective Grounding
Do not operate the instrument if you suspect the protective grounding
might be defective.
2
SM 04L31A01-01E
Do Not Operate Near Flammable Materials
Do not operate the instrument in the presence of flammable liquids or
vapors. Operation of any electrical instrument in such an environment
constitutes a safety hazard.
Do Not Remove Any Covers
There are some areas components inside the instrument containing
high voltage. Do not remove any cover, if the power supply is
connected. The cover should be removed by qualified personnel only.
Ground the Instrument before Making External Connections
Connect the protective grounding before connecting the instrument to a
measurement or control unit.
Firnish a switch (double-pole type) to separate the CX2000 from the
main power supply in the power supply line. In addition, make sure
to indicate that the switch is a power control for the CX2000 on the
switch.
Switch Specifications
Steady-state current ranting:1 A or more, inrush current rating:60 A or more
Connect a fuse between 2 A and 15 A in the power supply line.
Safety Symbols Used on Equipment and in Manuals
To avoid injury, death of personnel or damage to the
instrument, the operator must refer to an explanation in the
user’s manual.
High temperature. To avoid injury caused by hot surfaces,
the operator must not touch the heatsink.
Protective grounding terminal, to protect against electrical
shock.
This symbol indicates that the terminal must be connected
to ground before operation of equipment.
This symbol represents a functional grounding terminal.
Such terminals should not be used as a protective
grounding terminal.
WARNING
A WARNING sign calls attention to a procedure, practice, or
condition, that could result in the injury or death of personnel
if not correctly performed or adhered to.
CAUTION
A CAUTION sign calls attention to a procedure, practice, or
condition, that could result in damage to or the destruction
of part of the instrument if not correctly performed or
adhered to.
SM 04L31A01-01E
3
Overview of This Manual
This manual is meant to be used by qualified personnel only. Make sure to read the
safety precautions at the beginning of this manual as well as the warnings and cautions
contained in the chapters relevant to any servicing you may be carrying out.
This manual contains the following chapters.
1 Principles of Operation
Provides an introduction and safety considerations.
2 Testing
Explains the tests for checking the performance of the instrument.
3 Adjustments
Explains the adjustments which can be performed by users.
4 Replacing Parts
Describes maintenance which can be performed by users.
5 Troubleshooting
Presents procedures for troubleshooting and how to proceed in case parts need to be
replaced.
6 Schematic Diagram
Provides a system configuration diagram.
7 Customer Maintenance Parts List
Contains exploded views and a list of replaceable parts.
8 Procedures for Disassembly (CX1000)
Lists the steps required to remove parts from the instrument.
Specifications are not included in this manual. For specifications, refer to
IM 04L31A01-01E or IM 04L31A01-03E.
4
SM 04L31A01-01E
1
Contents
Important Notice to the User ............................................................................................... 1
Introduction ......................................................................................................................... 2
2
Safety Precautions .............................................................................................................. 2
Safety Symbols Used on Equipment and in Manuals ......................................................... 3
Overview of This Manual .................................................................................................... 4
3
Chapter 1 Principles of Operation
1.1
Block Diagram of the CX1000/CX2000 ............................................................................ 1-1
1.2
Input Section .................................................................................................................... 1-2
4
Chapter 2 Testing
2.1
Overview of Tests ............................................................................................................. 2-1
2.2
2.3
Test Procedures ............................................................................................................... 2-3
CTRL Module Assembly Tests ....................................................................................... 2-10
2.4
DIO Module Assembly Test ............................................................................................ 2-11
5
6
Chapter 3 Adjustments
3.1
Calibration of the Measuring Instrument’s Input ............................................................... 3-1
3.2
Control Output Calibration ............................................................................................... 3-6
7
Chapter 4 Replacing Parts
4.1
Replacement of the Control Output Terminal Block (Module) .......................................... 4-1
8
Chapter 5 Troubleshooting
5.1
5.2
Procedure ........................................................................................................................ 5-1
Flow Chart ........................................................................................................................ 5-2
5.3
Troubleshooting Checklist ................................................................................................ 5-3
Chapter 6 Schematic Diagram
6.1
CX1000 Schematic Diagram ............................................................................................ 6-1
6.2
CX2000 Schematic Diagram ............................................................................................ 6-2
Chapter 7 Customer Maintenance Parts List
7.1
CX1000 Customer Maintenance Parts List ...................................................................... 7-1
7.2
7.3
CX1000 Standard Accessories ........................................................................................ 7-8
CX2000 Customer Maintenance Parts List ...................................................................... 7-9
7.4
CX2000 Standard Accessories ...................................................................................... 7-16
Chapter 8 Procedures for Disassembly (CX1000)
SM 04L31A01-01E
8.1
Removing the Bezel ......................................................................................................... 8-1
8.2
8.3
Removing the Board Assemblies and the Drive ............................................................... 8-4
Removing the Keyboard .................................................................................................. 8-6
8.4
8.5
Replacing the Backlight ................................................................................................... 8-8
Removing the Terminal Assembly .................................................................................. 8-10
5
Chapter 1 Principles of Operation
1.1
1
Block Diagram of the CX1000/CX2000
Principles of Operation
Block Diagram of the CX1000
CPU
Data storage functions
Control/Measurement
Input section
External storage
Input terminal
Internal memory
Scanner assembly
A/D assembly
Display unit
Calculation function
Control Output section
Measurement Alarm function
Control Output
Control Alarm function
Contact Input
Communication function
Contact Output
Remote function
(optional)
Measurement Alarm Relay
(optional)
Block Diagram of the CX2000
CPU
Measurement Input section
Data storage functions
External storage
Input terminal
Scanner assembly
A/D assembly
Internal memory
Display unit
Control Input section
VGA out function (optional)
Calculation function
Input terminal
Measurement Alarm function
Scanner assembly
A/D assembly
Control Alarm function
Communication function
Control Output section
Remote function
(optional)
Measurement Alarm Relay
(optional)
Transmitter power supply
(optional)
Control - purpose DIO
(optional)
Control Output
Contact Input
Contact Output
Refer for details see schematic diagram page 6-1 and 6-2.
IM 04L31A01-01E
1-1
1.2
Input Section
A/D Assembly
The A/D assembly has items such as a programmable gain amp, voltage reference,
PWM modulator, current source for RTD measurements, differential amp, voltage source
for RJC, serial parallel converter, control logic, and an occurred scanner SSR control
signal.
The A/D assembly uses a sinewave oscillating type self-resonant switching power supply
(DC/DC converter), and noise filtering is achieved by signal integration.
The A/D assembly detects the frequency of the power while it is ON and the integrated
time becomes 20 ms or 16.67 ms. Therefore it carries a very high rate of noise rejection
for the power frequency (in auto mode).
In case the power frequency of the instrument and of the measured object are different,
the appropriate integrated time is manually selectable. In case of the CX2000, the
selection of 100 ms for 50/60 Hz is also available. A 16 bit resolution is achieved
regardless of the integrated time.
Input Terminal
The internal printboard is isothermal because a print board with a metal core is being
used. Therefore, stable reference junction compensation is realized.
Scanner Assembly
An in-house SSR (solid state relay) is being used for the scanner. The SSR, having a
semiconductor switch, has a withstand voltage as high as 1500 V and a leakage current
of only 1 nA. For that reason, it has the following features.
• Semi-infinite life due to the absence of mechanical contacts
• Silent operation
• No occurrence of thermoelectric power.
On the other hand, compared to a mechanical relay, the SSR has, the disadvantage of a
bigger ON resistance and OFF capacity. As a result, RTD measurement and noise
resistance characteristics are affected. Regarding RTD measurements, a differential
amp was inserted into the previously mentioned analog circuit without increasing the
number of parts, so that it would receive no influence from ON resistance.
For RTD measurements in Measurement input section there is generally no insulation
between channels.
For RTD measurements in Control input section there is generally insulation between
channels.
Data Storage Functions
For storing data, the CX1000/CX2000 has 1.2 MB of internal memory and is equipped
with a Zip drive, or an ATA flash memory card drive. The measured data can also be
saved to external storage media such as floppy disks, Zip disks, and ATA flash memory
cards.
Display Unit
The CX has a 5.5-inch (CX1000) or 10.4-inch (CX2000) TFT color LCD on which it
displays the measured results (240 (vertical) × 320 (horizontal) pixels for the CX1000 or
480 (vertical) × 640 (horizontal) pixels for the CX2000).
1-2
IM 04L31A01-01E
1.2 Input Section
1
Calculation Function
Measurement Alarm Function
The following eight alarm types can be set.
High limit (H), low limit (L), differential high limit (h), differential low limit (l), rate-ofchange on increase (R), rate-of-change on decrease (r), alarm delay upper limit alarm
(T), or alarm delay lower limit alarm (t).
Control Alarm Function
The following nine alarm types can be set.
PV high-limit, PV low-limit, Deviation high-limit, Deviation low-limit, Deviation high & low
limit, SP high-limit, SP low-limit, Output high-limit, Output low-limit
Other Functions
• Communication Function:
Ethernet (standard)
RS-232/RS-422A interface added (optional).
• Remote Function:
The trigger, start/stop, time adjustment, and other functions can be controlled
remotely (optional).
• Measurement Alarm Relay:
Measurement alarm output and memory end/fail output (option for CX1006 and
CX2000).
• Transmitter Power Supply:
DC24 V output for transmitter (only CX2000’s optional).
• VGA Out Function (Option for CX2000 Only):
The instrument's screen can be displayed on an external monitor via VGA output.
• Control - Purpose DIO (CX2000 Only):
Contact input
Input for designated operations such as start/stop. Activate using a no-voltage
contact or open collector signal. This is a 12-point input.
Contact output
Control Alarm output consists of 12 points of transistor contact output.
Control Output Section
Control Output
The following types are available for universal control output.
• Current output (continuous PID control output)
Continuously output a current (analog signal) proportional to the calculated PID values.
• Time proportional PID voltage pulse output
Output an ON/OFF signal, having a pulse width proportional to the time, as a voltage
per the calculated PID values.
• On/Off control relay contact output
• Output an ON/OFF signal, having a pulse width proportional to the time, at a relay
contact point per the calculated PID values.
• Output an ON/OFF signal to a relay contact point corresponding to the sign (+/–) of
the deviation in the measured value from the specified target value.
Contact Input
Input for designated operations such as start/stop. Activate using a no-voltage contact
or open collector signal.
Contact Output
Control Alarm output consists of relay contact output and transistor contact output.
IM 04L31A01-01E
1-3
Principles of Operation
The CX1000/CX2000 performs differential computation, linear scaling, and square roots
using a microprocessor on the CPU board.
Chapter 2 Testing
2.1
Overview of Tests
Operating Conditions
Ambient Temperature:
Relative Humidity:
23 ± 2°C
55 ± 20%
Test Instruments
Instrument
Specifications
DC voltage generator
Accuracy: 0.005% of setting + 1 mV
DMM
Accuracy: 0.005% of rdg + 1 mV
Resistors
Accuracy: 0.01% or better
Insulation tester
500 VDC
Withstanding voltage tester
AC 1 to 3 kV, 500 VDC
External monitor (for test of /D5 option)
VGA monitor (H: 33.3 kHz, V: 60.168 Hz)
Oscilloscope
200 kS/s or more, isolated input
Thermostatic chamber
ZC-114 (Coper Electronics Co., Ltd.) or equivalent
Testing Conditions
The tests cover all included A/D converters.
The unit's analog input is in analog multiplexer format.
For the CX1000, channel group 1–6 of the measurement input section and channel
group 7–11 of the control input section are each assigned to one A/D converter. For the
CX2000, channel groups 1–5 and 6–10 of the control input section (slot 1) and channel
groups 1–10 and 11-20 of the measurement input section (slots 2 and 3) are each
assigned to one A/D converter.
Therefore, except for when specifying inputs linked to the same A/D converter, only one arbitrary
channel within a group need be tested (for example, not channels 1—5 but only channel 1).
SM 04L31A01-01E
2-1
2
Testing
The following describes general testing procedures for DAQSTATION CX1000/CX2000
series instruments. For tests on specific modules or assemblies, see sections 2.3 and
later.
2.1 Overview of Tests
Tests
Insulation Resistance Test
Withstand Voltage Test
Measurement Accuracy Test
Error between Channels Test
Excessive Input Test
Burnout Test
Reference Junction Compensation Accuracy Test
Display Function Test
VGA Output Function Test (For /D5 Option Only)
Serial Communications Function Test (Only When The -1 Or -2 Suffix Code Is
Specified For The Communications Port).
Battery Backup Function Test
Continuous Operation Test
Current Output Accuracy Test
Voltage Pulse Output Test
Control Output Relay Test
DIO Test
KEY Function Test
Media Function Test
Alarm Relay Output Function Test (Only If The /A6, /A6R, /A4F, Or /A4FR Option Is Installed)
Remote Function Test (Only If The /A6R Or /A4FR Option Is Installed)
Communications Function Test (Ethernet)
Test of 24 VDC Transmitter Power Output (Only If The /TPS4 Is Installed)
Consult your nearest Yokogawa representative regarding the following tests.
Power Supply Frequency Detection Function Test
Memory Test
2-2
SM 04L31A01-01E
2.2
Test Procedures
Insulation Resistance Test
2
Terminals
Reference Values
Notes
Power terminal to earth terminal
Measurement input terminal to
earth terminal
Control input terminal to earth
terminal
100 MΩ or higher
Short all channels prior to test
RS-422-A/485 SG terminal to
RS-422-A/485 FG terminal
100 MΩ or higher
Test only if the basic
specification code for the
communications port is -2.
Ethernet input/output terminal
to earth terminal
100 MΩ or higher
Short all terminals prior to test
Withstand Voltage Test
Perform the test using a withstanding voltage tester and confirm that the results meet the
criteria below, and that the instrument does not malfunction.
Terminal
Reference Values
AC power terminal to earth terminal*
Leakage current of 10 mA or less at 1.5 kV AC for 1 minute
DC power terminal to earth terminal (/P1)*
Leakage current of 10 mA or less at 0.5 kV AC for 1 minute
Measurement input terminal to earth terminal†
Leakage current of 2 mA or less at 1.5 kV AC for 1 minute
Control input terminal to earth terminal†
Leakage current of 2 mA or less at 1.5 kV AC for 1 minute
Between measuring input terminals‡
Leakage current of 1 mA or less at 1 kV AC for 1 minute
Between control input terminals‡
Leakage current of 1 mA or less at 1 kV AC for 1 minute
§
Current and voltage pulse to earth terminal
Leakage current of 2 mA or less at 1 kV AC for 1 minute
Control relay terminal to earth terminal
(2, 4, and 6 loop models)||
Leakage current of 2 mA or less at 1.5 kV AC for 1 minute
DO relay terminal to earth terminal
(2, 4, and 6 loop models)#
Leakage current of 2 mA or less at 1.5 kV AC for 1 minute
DO(Tr) terminal to earth terminal
(2, 4, and 6 loop models or /CST1)**
Leakage current of 2 mA or less at 0.5 kV AC for 1 minute
D1 terminal to earth terminal
(2, 4, and 6 loop models or /CST1)††
Leakage current of 2 mA or less at 0.5 kV AC for 1 minute
Alarm relay terminal to earth terminal
(/A6, /A6R, /A4F, /A4FR)‡‡
Leakage current of 2 mA or less at 1.5 kV AC for 1 minute
Remote terminal to earth terminal (/A6R, /A4FR)§§
Leakage current of 2 mA or less at 0.5 kV AC for 1 minute
24 V transmitter power supply output to earth terminal Leakage current of 10 mA or less at 0.5 kV AC for 1 minute
(/TPS4)||||
* Short L and N (or +/– with the /P1 option)
† Short all channels
‡ Short the + and – input terminals (except for the RTD b terminal)
Short the even and odd channels (for example, short channels 1-3-5 and 2-4-6 on the CX1000 or channels 1-35-7-9 and channels 2-4-6-8-10 for the CX2000), and test the withstanding voltage between them.
§ Short mA, PULS, and C.
|| Short NO, NC, and C on CTRL OUT.
# Short 1NO, 1C, and 2NO on DO.
** Short DO3—DO6 and C.
†† Short all DI terminals.
‡‡ Short all alarm relay terminals.
§§ Short all remote terminals.
|||| Short all transmitter power supply output terminals (+/–).
SM 04L31A01-01E
2-3
Testing
Perform this test using a DC 500 V insulation resistance meter and confirm that the
results meet the criteria below.
2.2 Test Procedures
Measurement Accuracy Test (Measurement Input and Control Input)
Check that the specifications below are met given the following operating conditions: 23
± 2°C, 55 ± 10% RH, and a warm up time of 30 minutes.
Range
Input Value
Criterion
Specifications
20 mV
+20.00 mV
0.00 mV
–20.00 mV
±3 digits
±2 digits
±3 digits
±(0.1% of rdg + 2 digits)
60 mV
+60.00 mV
0.00 mV
–60.00 mV
±6 digits
±2 digits
±6 digits
±(0.1% of rdg + 2 digits)
200 mV
+200.0 mV
0.0 mV
–200.0 mV
±3 digits
±1 digits
±3 digits
±(0.1% of rdg + 2 digits)
2V
+2.000 V
0.000 V
–2.000 V
±3 digits
±1 digits
±3 digits
±(0.1% of rdg + 2 digits)
6V
+6.000 V
0.000 V
–6.000 V
±6 digits
±1 digits
±6 digits
±(0.1% of rdg + 2 digits)
20 V
+20.00 V
0.00 V
–20.00 V
±3 digits
±1 digits
±3 digits
±(0.1% of rdg + 2 digits)
50 V
+30.00 V
0.00 V
–30.00 V
±5 digits
±2 digits
±5 digits
±(0.1% of rdg + 3 digits)
Pt100
18.52Ω/–200°C
100.00Ω/0°C
313.71Ω/600°C
±0.4°C
±0.2°C
±0.9°C
±(0.15% of rdg + 0.3°C)
Error between Channels Test
Connect the (+), (–), and (b) terminals on all measurement and control input channels
using thick leads, then check whether the following criteria are met.
Range
Input Value
Criterion
20 mV
Short (+) (–)
0.00 mV ±2 digits
Pt100
103.9 Ω
Measured value: 10°C ± 0.2°C,difference between channels:
0.2°C or less
Note
•
•
If the measurement error does not meet the criterion (10°C ± 0.2°C), and unless you
determine the cause to be the effect of the resistance in the test facility's RTD wiring, use
the following measurement criteria.
Measured value:
10°C ± 0.5°C
Difference between channels: 0.2°C or less
See your nearest Yokogawa representative for the error between channels in the control
input section.
Excessive Input Test
1.
2.
3.
4.
5.
2-4
Connect the plus (+) and minus (–) sides of all measurement and control input
channels.
Set all channels to the 20 mV range.
Apply 10 V between the plus and minus sides for 1 minute, and confirm that
there is no malfunction.
Set all channels to the Pt100 range.
Apply ±10 V between (A) and (B) for 1 minute, and confirm that there is no
malfunction.
SM 04L31A01-01E
2.2 Test Procedures
Burnout Test
1.
2.
3.
4.
5.
6.
7.
Reference Junction Compensation Accuracy Test
Perform 0°C measurement for TYPE - T on all control and measurement channels, and
confirm that the result is below the following reference value.
Reference value: 0 ± 0.5°C
CAUTION
•
•
•
•
•
•
•
Use a calibrated non-insulated thermocouple without a terminal tip, having a Φ0.5 mm or
narrower strand. Also, be sure to take the level of calibration error into consideration
during testing.
Continuously monitor the thermostatic chamber, and check that the temperature remains
at 0°C ± 0.01°C.
When using a 0°C thermostatic chamber (for example the ZC-114 by Coper Electronics
Co. Ltd.) raise the tip of the thermocouple up 10 mm from the bottom.
Conduct all tests in a stable environment.
Install a windbreak if necessary.
Allow a 15 minute warm up after wiring the thermocouple.
Always use the terminal covers.
Display Function
Check the adjustment of the display color and backlight intensity using the following
procedure.
1.
Press the MENU key twice to enter Set mode. The Set mode screen is
displayed.
2.
3.
4.
SM 04L31A01-01E
Press the Display soft key.
Select Color.
The default color and color name is displayed for each channel; compare the
colors and their names to make sure there are no discrepancies.
2-5
2
Testing
Connect a 2 kΩ resistor between the plus (+) and minus (–) sides of an arbitrary
channel.
Connect 56 kΩ resistor and a 0.1 µF capacitor in parallel between the plus (+)
and minus (–) sides of an arbitrary channel other than the one in step 1.
Set the range for the 2 connected channels to TC - TYPE K, and the Burnout to
ON.
Check that the channel to which 2 kΩ was connected displays a temperature
close to the room temperature.
Check that the channel to which the 56 kΩ resistor and the 0.1 µF capacitor
were connected in parallel displays Burnout (overrange).
Set Burnout to OFF.
Check that both channels in steps 1 and 2 do not display Overrange.
2.2 Test Procedures
5.
6.
7.
8.
9.
10.
Press ESC to return to the previous screen.
Press the View, Direction, LCD soft key.
Move the cursor to Brightness.
For the CX1000, select 1 through 8 and confirm that each brightness level is
brighter than the one before it. For the CX2000, select 1 through 4 and confirm
that each brightness level is brighter than the one before it.
During other phases of testing as well, always be checking for any abnormalities
in the display that may appear.
Set Brightness to 3.
VGA Output Function Test (for the /D5 Option Only)
Connect a VGA monitor to the VGA output terminal on the back of the CX2000, then look
at the screen to check the VGA output. Perform steps 1—10 above for the display
function and check the results.
Serial Communications Function Test (Only If the -1 or -2 Suffix Code is Specified for
the Communications Port)
During this test, actual communications are performed to check whether the RS-232,
RS-422A/485, or other functions are operating properly. However, if you used serial
communications successfully to carry out other tests, you don't need to perform this test.
Perform the tests using the procedure below.
1.
Connect a cable between the PC and the CX1000/CX2000.
If communications cannot be carried out via RS-422A/485, use an RS-232 adapter.
2.
Send an arbitrary command from the PC using application software for CX1000/
CX2000 series instruments or other software, and confirm that the expected result
occurs.
Battery Backup Function Test
1.
2.
3.
4.
While the CX1000/CX2000 is ON, set the date and time (see section 3.3,
“Setting the Date and Time” in manual IM 04L31A01-01E or IM 04L31A01-03E).
Turn the power OFF.
Wait at least one minute, then turn the power back ON.
Confirm that the date and time set in step 1 are correct.
Continuous Operation Test
1.
2.
3.
4.
5.
2-6
Enter the following settings.
• Enter AUTO SAVE to the media (see section 9.1 of the manual, IM 04L31A0101).
• Set all channels to a range of 20 V (see section 4.6 of the manual, IM 04L31A0101).
• Set input to open.
• Set display type to waveform display (see section 1.16 of the manual, IM 04L31A0101).
Press the START key.
Run the instrument continuously for 24 hours or more.
Press the STOP key.
Check the following:
• That a data file was created in the MEDIA INFO screen (see section 4.6 of
the manual, IM 04L31A01-01E).
• That there is no abnormal variation in the straight line waveform.
• That there is no other strange sound or odor coming from the instrument.
SM 04L31A01-01E
2.2 Test Procedures
Current Output Accuracy
1.
2.
4.
5.
6.
7.
Output Ratio
Reference Value
0.0%
4 mA
100.0%
20 mA
Allowable Range
3.984 to 4.016 mA
19.984 to 20.016 mA
(Load condition: 250 Ω ±1%)
Voltage Pulse Output
1.
2.
3.
4.
Choose Output processing by following the procedures in step 1 of “Current
Output Accuracy.”
Set the type of control output to Voltage-pulse and the cycle time to 1 second
for all the loops, save the settings, and change the mode to normal (the type of
analog output can be set freely).
Change the operation mode to manual and start control operation by following
the procedures of steps 5 and 6 of “Current Output Accuracy.”
Press the OUT softkey. Set the output ratio to 20.0% with the up and down
arrow keys and observe the output voltage waveform on an oscilloscope or the
like. Verify that a rectangular waveform is displayed at a 1-second interval (0.2second high and 0.8-second low) and 12 V ± 5%.
Control Relay Output
1.
2.
3.
4.
Choose Output processing by following the procedures in step 1 of “Current
Output Accuracy.”
Set the type of control output to On/Off-control for all the loops, save the
settings, and change the mode to normal (the cycle time and type of analog
output can be set freely).
Change the operation mode to manual and start control operation by following
the procedures of steps 5 and 6 of “Current Output Accuracy.”
Press the OUT softkey. Set the output ratio to 0.0% and 100.0% with the up and
down arrow keys and verify that the relay outputs are as follows:
Output Ratio
SM 04L31A01-01E
NO-C
NC-C
0.0%
Break
Make
100.0%
Make
Break
2-7
2
Testing
3.
Change the mode to setup and choose Control, Control action, and then Input
setting. Set the control mode to Single. Press the ESC key to return to the
preceding menu, and choose Output processing.
Set the type of control output to Current-output and analog output to 4-20 mA
for all the loops, save the settings, and change the mode to normal (the cycle
time can be set freely).
Press the DISP/ENTER key and choose Control and then Control groups to
display the control display.
Choose a loop number to measure with a blue arrow using the arrow keys.
Press the MODE softkey, and change the operation mode to manual by
choosing MAN with the up and down arrow keys and pressing DISP/ENTER key
to confirm it.
Press the RUN/STP softkey, and start control operation by choosing RUN with
the up and down arrow keys and pressing DISP/ENTER key to confirm it.
Press the OUT softkey. Set the output ratio to 0.0% and 100.0% with the up and
down arrow keys and measure each output current with an ammeter or the like.
Verify that the measured currents are within the ranges as shown in the table
below.
2.2 Test Procedures
Test of Digital Input/Output (not applicable for models CXx0xx)
Digital Input
1.
Press the DISP/ENTER key and choose CONTROL and then DI/DO STATUS.
2.
The digital input terminals are divided into blocks. Short-circuit between the
common terminal and the terminals, and check the DI status display. The
indicator is green for an open circuit and red for a short circuit.
Digital Output
1.
Short-circuit input terminals of all channels and adjust the range and alarm
setting as follows:
Range
Mode
Voltage
Range
2V
Span
–2.000 to 2.000
On
Alarm
(Level 1)
2.
Type
H
Value
–1.000
Prepare the same input terminals step 1, and adjust the alarm relay output as
follows:
On
Relay Output
Alarm
(Level 1)
3.
No.
DOxxx and ROxxx
where xxx: digital
output number to test
Verify that a digital output turns on using an appropriate tester with the following
circuit:
I ≤ 50 mA
R
DO terminal
LED
V ≤ 24 V DC
Common
Test of Power Supply Voltage Switching
Change the power supply voltage to 240 V AC and verify that the UUT display does not
malfunction.
Note that this test does not apply to the 24 V AC/DC-driven model (option code: /P1).
Test of Ethernet Interface
Use a computer in which the standard software “DAQSTANDARD for CX” is installed
and that has an Ethernet communication function, for the following test.
Run the launcher program. Select Ethernet in the network settings and make the
communication settings. Then, verify that the settings of the UUT, such as the ranges,
can be set up correctly as well as those settings can be read from the computer using
the settings software.
Test of Storage Drive
1.
2.
3.
2-8
Insert a formatted disk into the drive of the UUT.
In the set mode*1, choose Save/Load, Clear data, and then Save settings. Save
the current panel conditions under a desired filename.
In the set mode, choose Save/Load, Clear data, and then File list. Verify that the
file saved in step 2 exists in the list.
SM 04L31A01-01E
2.2 Test Procedures
Test of Storage Drive
1.
2.
3.
Test of Alarm Relay Contact Outputs (applicable to option codes /A6, /A6R, /A4F and /
A4FR)
Insulation Resistance and Withstanding Voltage Tests
Item
Measured Point
Specification
Insulation resistance
Between relay output terminals and
grounding terminal
No less than 20 MΩ at 500 V DC
Withstanding voltage
As above
Free from damage after applying 1500 V AC,
50/60 Hz for 1 minute (with breaking leakage
current set to 2 mA)
Alarm Actions
1.
Prepare the same input terminals and settings as step 1 in “Digital Output”
(page 2-8), and also adjust the alarm relay output as follows:
Relay Output
On/off
No.
Ixx
where xx: alarm
output number to test
Alarm
(Level 1)
2.
Verify that an alarm contact works as follows upon turning on/off the
corresponding relay output.
Terminals
Normal
During Alarm
NO–C
Break
Make
Where the output relay action is set to
Remarks
NC–C
Make
Break
normally de-energized (factory set)
Test of Remote Control (applicable to option codes /A6R and /A4FR)
Insulation Resistance and Withstanding Voltage Tests
Item
Insulation resistance
Withstanding voltage
Measured Point
Between remote control terminals and
grounding terminal
As above
Specification
No less than 20 MΩ at 500 V DC
Free from damage after applying 500 V DC for 2
minute (with breaking leakage current set to 2 mA)
Remote Control Actions
Assign individual functions to 8 remote control inputs, then short-circuit each of those
inputs in turn and verify that the CX1000/CX2000 is controlled as specified.
Test of 24 VDC Transmitter Power Output (applicable to option code /TPS4)
Test of Insuration Resistance and Withstanding Voltage
Insulation resistance
Between 24 VDC output terminals and No less than 20 MΩ at 500 VDC
grounding terminal
As above
Free from damage after applying 500 VAC, 50/60 Hz for
1 minute (with breaking leakage current set to 10 mA)
Withstanding voltage
Between 24VDC output terminals
Free from damage after applying 500 VAC, 50/60 Hz for
1 minute (with breaking leakage current set to 10 mA)
SM 04L31A01-01E
2-9
2
Testing
Insert a formatted disk into the drive of the UUT.
In the set mode*1, choose Save/Load, Clear data, and then Save settings. Save
the current panel conditions under a desired filename.
In the set mode, choose Save/Load, Clear data, and then File list. Verify that the
file saved in step 2 exists in the list.
2.3
CTRL Module Assembly Tests
This section describes the test procedure for CTRL MODULE ASSY (B8700CL,
B8700CM, B8700CN, and B8700FT) which is used on the CX2000. This test is not
necessary if you will perform the general tests in section 2.2. Perform this test on the
module by itself.
Test Instruments
Instrument
Specifications
DC current meter
Accuracy: 0.01% of rdg
Withstanding voltage tester
AC 1 to 3 kV, 500 VDC
Oscilloscope
200 kS/s or more, isolated input
Resistor
250 Ω ±1%
Jig
A measurement instrument having the same functions and
characteristics as the CX2000 or CX1000.
Tests
• Withstand Voltage Test
Consult your nearest Yokogawa representative regarding the following tests.
• Output Accuracy Test
• Voltage Pulse Output Test
• Control Relay Output Test
• DI Test
• DO Test
Testing Environment
Ambient temperature of 23±5°C, relative humidity of 55 ±20%
CAUTION
• Before starting the test, allow the instrument to warm up for 30 minutes or more.
• Make sure the module is installed in the CX1000/CX2000.
Test Procedure
Perform a withstand voltage test on the module installed in the CX1000/CX2000 at the
points listed below.
Test Points
Reference Values
Current and voltage pulse output to earth terminal on
the CX1000/CX2000*
Leakage current of 2 mA or less at 1 kV AC for 1 minute
Control relay terminal to CX1000/CX2000 earth terminal†
Leakage current of 2 mA or less at 1.5 kV AC for 1 minute
DO relay terminal to CX1000/CX2000 earth terminal‡
Leakage current of 2 mA or less at 1.5 kV AC for 1 minute
§
2-10
DO (Tr) relay terminal to CX1000/CX2000 earth terminal
Leakage current of 2 mA or less at 0.5 kV AC for 1 minute
DI terminal to CX1000/CX2000 earth terminal||
* Short mA, PULS, and C.
† Short NO, NC, and C.
‡ Short NO and C.
§ Short DO3—6 and C.
|| Short all DIs.
Leakage current of 2 mA or less at 0.5 kV AC for 1 minute
SM 04L31A01-01E
2.4
DIO Module Assembly Test
Test Instruments
Instrument
Specifications
Withstanding voltage tester
AC 1 to 3 kV, 500 VDC
Jig
A measurement instrument having the same functions and
characteristics as the CX1000/CX2000
Tests
• Withstand Voltage Test
Consult your nearest Yokogawa representative regarding the following tests.
• DI Test
• DIO Test
Testing Environment
Ambient temperature of 23 ±5°C, relative humidity of 55 ±20%
CAUTION
• The following assumes that the test will be performed with the module installed in
the CX1000/CX2000.
• The test cannot be performed on models having no internal control loops with no
DIO module installed.
Test Procedure
Perform a withstand voltage test on the module installed in the CX1000/CX2000 at the
points listed below.
Test Points
Reference Values
DO terminal to CX1000/CX2000 earth terminal*
†
DI terminal to CX1000/CX2000 earth terminal
* Short DO1—12 and C.
† Short all DIs.
SM 04L31A01-01E
Leakage current of 2 mA or less at 0.5 kV AC for 1 minute
Leakage current of 2 mA or less at 0.5 kV AC for 1 minute
2-11
2
Testing
This section describes the test procedure for CTRL MODULE ASSY (B8700CY) which is
used on the CX1000/CX2000. This test is not necessary if you perform the general tests
in section 2.2. Perform this test when testing the module by itself.
Chapter 3 Adjustments
3.1
Calibration of the Measuring Instrument’s Input
Allow the instrument to warm up for at least 30 minutes prior to calibration.
Instruments for Calibration
Accuracy: 0.005% of setting +1 µV
100 Ω, 300 Ω (accuracy: 0.01% or less)
DC voltage generator
Resistor
3
Adjustments
Overview
The structure of the A/D converter in the CX2000 differs depending on the model.
Multiple channels (groups) share one A/D converter. All A/D converters must be
calibrated, so calibration must be performed on each group.
CX1000
Monitor
No. of Inputs for
Meas.
Measurement
Interval
Total Number
of Channels
No. of
CH/AD
No. of
A/D
6ch
1s
6
6
1
* Group: a classification for all channels that share a single A/D converter
Group
(1—6)
Control (1st Slot)
Number of Internal
Control Loops
Measurement
interval
Total Number
of Channels
No. of
CH/AD
No. of
A/D
Group
0 loops
—
0
0
0
—
2 loops
250 mS
5
5
1
(1—5)
Measurement
interval
Total Number
of Channels
No. of
CH/AD
No. of
A/D
Group*
CX2000
Control (1st Slot)
Number of Internal
Control Loops
0 loops
—
0
0
0
—
2 loops
250 mS
5
5
1
(1—5)
4 or 6 loops
250 mS
10
5
2
* Group: a classification for all channels that share a single A/D converter
(1—5) (6—10)
Monitor (2nd, 3rd Slot)
No. of Inputs for
Meas.
Measurement
Interval
Total Number
of Channels
No. of
CH/AD
No. of
A/D
Group
10 ch
1s
10
10
1
(1—10)
20 ch
1s
20
10
2
(1—10) (11—20)
Ranges to Be Calibrated and Their Parameters
Range
Zero
Full Scale
20 mV
0 mV
20 mV
60 mV
0 mV
60 mV
200 mV
0 mV
200 mV
1V
0V
1V
2V
0V
2V
6V
0V
6V
20 V
0V
20 V
Pt100†
100 Ω
300 Ω
† You must calibrate the 200 mV range before calibrating the RTD range.
SM 04L31A01-01E
3-1
3.1 Calibration of the Measuring Instrument's Input
Calibrating the Input Range
For each group, input the zero and full scale for the input range to the channels below
and perform calibration.
CX1000
• Voltage Range
Control
Number of Internal
Group 2 (1—5ch)
Control Loops
Zero
Full Scale
0 loops
—
—
2 loops
CH1*
CH2*
* The expression channel is not used for control input, but for expediency the inputs are
referred to (from right to left) as CH1 and CH2 respectively.
Monitor
No. of Inputs for Meas.
Group 1 (1—6ch)
Zero
Full Scale
6ch
CH1
CH2
Zero
Full Scale
• RTD Range
Control
Number of Internal
Group 2 (1—5ch)
Control Loops
100 Ω
300 Ω
0 loops
—
—
2 loops
CH1*
CH2*
* The expression channel is not used for control input, but for expediency the inputs are
referred to (from right to left) as CH1 and CH2 respectively.
Monitor
No. of Measurement
Group 1 (1—6ch)
Input Channels
100 Ω
300 Ω
6ch
CH1
CH2
CX2000
• Voltage Range
Control (1st Slot)
Number of Internal
Group 1
Group 2
Control Loops
Zero
Full Scale
Zero
Full Scale
0 loops
—
—
—
—
2 loops
CH1
CH2
—
—
Loops 4,6
CH1
CH2
CH6
CH7
Monitor (2nd, 3rd Slot)
No. of Inputs for Meas.
3-2
Group 1
Group 2
Zero
Full Scale
Zero
10 ch
CH1
CH2
—
Full Scale
—
20 ch
CH1
CH2
CH11
CH12
SM 04L31A01-01E
3.1 Calibration of the Measuring Instrument's Input
• RTD Range
Control (1st Slot)
Number of Internal
Group 1
Group 2
Control Loops
100 Ω
0 loops
—
—
—
—
2 loops
CH1
CH2
—
—
Loops 4, 6
CH1
CH2
CH6
CH7
300 Ω
100 Ω
300 Ω
3
Monitor (2nd, 3rd Slot)
Group 1
Adjustments
Model
Group 2
100 Ω
300 Ω
100 Ω
300 Ω
10 ch
CH1
CH2
—
—
20 ch
CH1
CH2
CH11
CH12
Calibration Procedure
The calibration procedure can be carried out using keys on the instrument or
communications commands.
Calibrating Using Keys
1.
Turn ON the unit while holding down the UP arrow key. The calibration screen
appears.
2.
Press the A/D Input Adjust soft key. The A/D adjust screen is displayed.
01-05, 06-10 shows control input, and 01-10, 11-20 shows measurement input.
3.
SM 04L31A01-01E
Select a group to calibrate (01—05, 06—10, 01—10, 11—20).
3-3
3.1 Calibration of the Measuring Instrument's Input
4.
Press the ENTER key. The A/D adjust screen is displayed.
5.
Input the zero and full scale value to the calibration channels shown in
"Calibrating the Input Range" (page 3-2).
Press the Cal/Exec soft key. The A/D adjust (Cal/Exe) screen is displayed.
6.
CAUTION
If you select Display in the A/D adjust screen, you can confirm the calibrated
value and manually input values using keys. Key-based manual calibration has
a large effect on measurement accuracy, so only perform the procedure if you
think it is absolutely necessary.
7.
8.
9.
10.
11.
12.
13.
14.
3-4
Press the soft key corresponding to the range to be calibrated (20 mV, 60 mV,
200 mV etc.).
Press the ENTER key. The calibration begins.
Repeat steps 5—8 and calibrate all ranges.
Press ESC. You are returned to the A/D adjust screen.
Press the End soft key. A dialog box appears asking you whether or not to save
and exit.
Select Yes. You are returned to the A/D adjust (Cal/Exe) screen.
Repeat steps 3—12 to calibrate and save calibrated values for each group.
When you are finished with all procedures, turn the power OFF.
SM 04L31A01-01E
3.1 Calibration of the Measuring Instrument's Input
Calibration Using Communications
The calibration process proceeds as follows:
1.
Enter Calibration mode
2.
Perform calibration
3.
Store the calibrated values
4.
Return to operation mode
The commands necessary for calibration are listed below.
For the input connection method, see "Input Range Calibration" on page 3-2.
DSp1 Switch to setting mode
p1
0
Switch to operation mode
1
Switch to Set up mode
2
Switch to A/D calibration mode
p2
p3
Perform A/D calibration (Cal/Exe)
Group
For control input: 01—05 for the CX1000, and 01—05 or 06—10 for the
CX2000
For measurement input: 01—06 for the CX1000, and 01—10 or 11—20
for the CX2000
Type of operation
Cal/Exec
Calibration range
20 mV, 60 mV, 200 mV, 1 V, 2 V, 6 V, 20 V, Pt100
XZp1,p2,p3,p4,p5
Manual correction of A/D calibration value (Display)
p1
Group
For control input: 01—05 for the CX1000, and 01—05 or 06—10 for the
CX2000
For measurement input: 01—06 for the CX1000, and 01—10 or 11—20
for the CX2000
p2
Type of operation
Display
p3
Calibration range
20 mV, 60 mV, 200 mV, 1 V, 2 V, 6 V, 20 V, Pt100
p4
Zero input value
p5
Full scale input value
XZp1,p2,p3
p1
p2
p3
Store the calibrated values (exit)
Group
For control input: 01—05 for the CX1000, and 01—05 or 06—10 for the
CX2000
For measurement input: 01—06 for the CX1000, and 01—10 or 11—20
for the CX2000
Type of operation: End
Data save selection
STORE Save to a file
ABORT Don’t save
XZp1,DISPLAY?
Get information for calibrated values
p1
Group
For control input: 01—05 for the CX1000, and 01—05 or 06—10 for the
CX2000
For measurement input: 01—06 for the CX1000, and 01—10 or 11—20
for the CX2000
SM 04L31A01-01E
3-5
Adjustments
XZp1,p2,p3
p1
3
3.2
Control Output Calibration
Allow the instrument to warm up for at least 30 minutes prior to calibration.
Instruments for Calibration
DC current meter
Resistor
Accuracy: 0.01% of rdg
250 Ω ± 1%
Overview of Calibration
During calibration of the control output (current output terminal), each output is
connected to one D/A converter, so you must calibrate the outputs separately. The
module installed in the CX1000 is 01. In the CX2000, the modules are numbered in
order (01, 02, 03) from top to bottom. Also within each module, output number 01 is
assigned to loop 1, and output 02 to loop 2.
Calibration Procedure
The calibration procedure can be carried out using keys or communications commands.
Calibration Using Keys
1.
Connect a 250 Ω ±1% resistor and DC current meter in serial to the current
output terminal.
2.
Turn ON the unit while holding down the UP arrow key. The calibration screen
appears.
3.
Press the Pid Analog Output Adjust soft key. The Pid Analog Output Adjust
screen is displayed.
4.
Use the arrow keys and soft keys to select the module number and output
number to be calibrated.
While monitoring with a current meter, change the calibration value at each Output
Value (4 mA and 20 mA) so that it falls within the calibration range shown in the
following chart. The first digit of the calibration value corresponds to 0.366211 µA.
5.
3-6
Output Value
Calibration Range
4 mA
3.99 mA—4.01 mA
20mA
19.99 mA—20.01 mA
SM 04L31A01-01E
3.2 Control Output Calibration
6.
Press the Write function key for each output number. The calibration values are
saved.
3
Adjustments
7.
8.
9.
Repeat steps 4—6 and calibrate all module and output numbers.
Press ESC. You are returned to the calibration screen.
Turn OFF the power
Calibration Using Communications
The commands required for control output calibration are listed below.
For other necessary commands, see Calibration Using Communications (page 3-5) in
section 3.1, “Calibrating the Measuring Instrument Input.”
Perform step 1 of Calibration Using Keys before using these commands for
calibration.
For OUTPUT
ZZp1,p2,p3,p4
p1
Action OUTPUT
p2
Module number (1 for the CX1000, or 1—3 for the CX2000)
p3
Output channels (1 and 2)
p4
4 mA/20 mA
p5
Calibration value (For 4 mA, 9285—12561)
(For 20 mA, 46421—62804)
For WRITE
ZZp1,p2,p3,p4
p1
p2
p3
p4
p5
Action (OUTPUT/WRITE)
Module number (1 for the CX1000, or 1—3 for the CX2000)
Output channels (1 and 2)
(Calibration value for 4 mA, 9285—12561)
(Calibration value for 20 mA, 46421—12561)
Note
When specifying WRITE, you can omit p4 and p5. If you do so, the currently set calibration
value is written.
SM 04L31A01-01E
3-7
Chapter 4 Replacing Parts
4.1
Replacement of the Control Output Terminal
Block (Module)
WARNING
Replacement of terminal blocks and control relays are to be carried out
by engineers authorized by YOKOGAWA. When replacement becomes
necessary, please contact your nearest dealer or YOKOGAWA
representative.
4
Replacing Parts
Parts List
CX1000
Part No.
Name
Option Code, Model
B8700GA
Alarm Module
/A6
B8700GB
Alarm Remote Module
/A6R
B8700GC
Alarm Fail Module
/A4F
B8700GD
Alarm Remote Fail Module
/A4FR
B8700FT
CTRL Module 2 Loop
CX1206
B8700FP
CTRL MEAS 0 Loop Module Assembly
CX1006 not /N2
B8700FQ
CTRL MEAS 2 Loop Module Assembly
CX1206 not /N2
B8700FR
CTRL MEAS 0 RTD Module Assembly
CX1006 /N2
B8700FS
CTRL MEAS 2 RTD Module Assembly
CX1206 /N2
CX2000
SM 04L31A01-01E
Part No.
Name
Option Code, Model
B8700CL
CTRL 2 Loop Module Assembly
CX22xx, CX24xx, CX26xx
B8700CM
CTRL 4 Loop Module Assembly
CX24xx, CX26xx
B8700CN
CTRL 6 Loop Module Assembly
CX24xx, CX26xx
B8700CY
DIO Module Assembly
/CST1
B8700CX
Alarm Terminal Assembly
/A6
B8700CZ
Alarm Terminal Assembly
/A6R
B8700CJ
Alarm Terminal Assembly
/TPS4
B8700DX
Alarm Terminal Assembly
/A4F
B8700DZ
Alarm Terminal Assembly
/A4FR
B8700CP
CTRL Input 2 Loop Module Assembly
CX22xx
B8700CQ
CTRL Input 4 Loop Module Assembly
CX24xx
B8700CR
CTRL Input 6 Loop Module Assembly
CX26xx
B8700CS
10ch Input Module Assembly
CX2x10, CX2x20
B8700CU
10ch 3RTD Input Assembly
CX2x10, CX2x20 /N2
B8700CT
20ch Input Module Assembly
CX2x20
B8700CV
20ch 3RTD Input Assembly
CX2x20 /N3
4-1
4.1 Replacement of the Control Output Terminal Block (Module)
Replacement of Each Terminal Block (Module)
WARNING
• To prevent electric shock, cut the power to the main unit and disconnect any
wiring that may be connected to it before replacing the terminal block.
• To prevent electric shock when disconnecting wires, ensure the main power
supply is turned OFF.
Follow the procedures below to replace the blocks.
1.
Loosen (but do not completely remove) the 2 terminal cover screws,
remove the cover, then remove the wiring from the terminal block.
Ignore this step if the terminal block is not wired.
Connector
Connector
Terminal cover screws
Terminal cover screws
Terminal block
attachment screws
2.
3.
4.
5.
Terminal block attachment
screws
Loosen the 2 terminal block attachment screws.
Pull the terminal block straight out and away from the unit. Be careful not
to bend the connector pins while removing the terminal block.
Check the angle of the terminal block, install it on the main unit, and then
fasten by tightening the terminal block attachment screws.
Install the terminal cover, and fasten with the terminal cover screws.
When Replacing Only the Control Relay
WARNING
• To prevent electric shock, unplug the main power cord before replacing
the control relay.
• To prevent electric shock when disconnecting wires, ensure the main
power supply is turned OFF.
• To prevent electric shock, use a withstanding voltage tester to check the withstanding
voltage between the relay and the protective grounding after replacing the relay.
Withstand voltage: 1500 VAC, 1 minute
• You must perform an insulation resistance test and wishstand voltage test
after replacing the control relay.
Follow the procedures below to replace the blocks.
1.
Loosen (but do not completely remove) the 2 terminal cover screws,
remove the cover, then remove the wiring from the terminal block.
Ignore this step if the terminal block is not wired.
4-2
SM 04L31A01-01E
4.1 Replacement of the Control Output Terminal Block (Module)
Connector
Connector
Terminal cover screws
Terminal cover screws
Terminal block attachment
screws
Terminal block
attachment screws
4.
Loosen the 2 terminal block attachment screws.
Pull the terminal block straight out and away from the unit. Be careful not
to bend the connector pins while removing the terminal block.
Open the back lid of the terminal block. The letters printed on the relays
indicate the loops they correspond to: RL1 is for loops 1, 3, and 5, and
RL2 is for loops 2, 4, and 6.
Back lid
5.
Using a tool such as a pair of needle-nosed pliers, grasp the relay and pull
it directly outward. If you are not replacing the other relay, be careful not
to damage it when removing the relay to be replaced.
Push the Relay Lock Latch to the Left
Control relay
Needle-nosed pliers
or a similar tool
Replace the relay with the following:
Matsushita Electronic Works, Ltd. Control Relay
Part No.: DSP1-DC12V
Web Site: http://www.nais-e.com/
SM 04L31A01-01E
4-3
4
Replacing Parts
2.
3.
4.1 Replacement of the Control Output Terminal Block (Module)
6.
Insert the relay into the socket by hand, with the line on the top of the
relay facing to the left.
This line faces left
7.
8.
Close the back lid of the terminal block.
Check the angle of the terminal block, install it on the main unit, and then
fasten by tightening the terminal block attachment screws.
9.
Install the terminal cover, and fasten with the terminal cover screws.
1 0 . Confirm that the instrument functions properly, then perform a
withstanding voltage test on the contact output terminal to protective
ground of each control relay.
4-4
SM 04L31A01-01E
Chapter 5 Troubleshooting
5.1
Procedure
1
2
3
4
Determine the type of problem.
Check for possible user error.
Check the connections and the settings of
equipment to determine whether there was a handling mistake.
Execute the self diagnostic test by turning the power ON, and identify any
problem items.
Analyze the cause of the problem according to the troubleshooting flow chart.
Do not touch the circuit or parts with live voltage because the power unit contains a highvoltage electrical circuit. The p
ower unit is furnished with a dedicated cover to prevent
electric shock. Do not remove this cover.
Never touch any part not subject to
adjustment.
5
SM 04L05A01-01E
Troubleshooting
Make sure to connect input terminals (voltage or current) correctly. The internal circuit
may be damaged when wrongly connected.
5-1
5.2
Flow Chart
This flow chart consists of general service operations when a fault occurs. This chart is
not always suitable for every kind of fault. However, it is recommended to perform
operations according to the flow chart.
START
Phenomenon check
NO
Cause check
YES
Assembly exchange and
adjustment
Performance test execution
Repaired?
NO
YES
END
5-2
SM 04L05A01-01E
Troubleshooting Checklist
Operational
Power cable connection
Fuse is blown (/P1 option only)
Power ass’y
CPU ass’y
Memory ass’y
Display ass’y
FAIL state
CPU ass’y
Memory ass’y
Display ass’y
Optional terminal ass’y
Memory cannot
be backed up
Battery connector is disconnected?
Battery voltage is low (less than +3.0V)
CPU ass’y
Memory ass’y
Display ass’y
LCD is not normal
Measured value
incorrect
5
Troubleshooting
Power is not
turned ON
Panel key operation
is not normal
SM 04L05A01-01E
Check Item
Exchange
Check
Trouble
Adjust
5.3
FFC ass’y of the keyboard is
disconnected/broken
Keyboard ass’y
CPU ass’y
Memory ass’y
Display ass’y
FFC ass’y of the LCD is disconnected/
broken
CPU ass’y
Memory ass’y
Display ass’y
LCD ass’y
Input wiring is disconnected
Noise
A/D ass’y
Scanner ass’y
Measured
temperature
is incorrect
Input is disconnected
Noise
Terminal cover is removed
RJC INT/EXT setting
A/D board ass’y
Input terminal
Scanner board ass’y
Measured value
fluctuates
Power frequency setting is incorrect
Noise
External storage
media is not normal
Floppy disk/Zip disk/PC card drive unit
5-3
SM 04L31A01-01A
CN8
CN101
CN7
CN1
CN3
CN13
CN4
CN15
CN2
B9967TF (AF/DC24V)
A1485UP (STD)
POWER SUPPLY
CN1
B9967MC
CN3
B9968MG
CN2
B9967UD (AC/DC24V)
B9967TD (STD)
SUB POW BOARD ASSY
CN3
CN4
POWER CABLE
CN41
CN1
POWER CABLE
CN42
SCREW
CN3
CN1
CN16
OUTPUT MAIN
BOARD ASSY
B8700RG
CN2
CN2
OUTPUT SUB
BOARD ASSY
B8700SH
CN1
CN2
A1053VA
LCD & INVERTER
SW BOARD
ASSY
B9967TC
CN1
CN3
KEY FPC
B9967MB
B8700RK
DISPLAY BOARD ASSY
CN3
CN1
B8700RA
CN2
CN1
B9900BR
BATTERY ASSY
CN2
B8700UZ
MEMORY BOARD ASSY
CPU BOARD ASSY
CN1
CN1
CN17
CN1
FDD DRIVE
A1092UN
IDE FFC
B9968MB
ZIP DRIVE
A1131UN
CN2
ZIP CONN BOARD
ASSY
B9968SU
CN1
CN2
IDE BOARD
ASSY
B9968ST
CN1
+RS-232
+RS-422
B9968TP
TEST
CN4
CN2
PC-CARD BOARD
ASSY
B9968SV
CN1
MOTHER BOARD
ASSY
B9967TB
B9968RK +RS-422
+RS-232
B9968RG STD
B9968RJ
B9968TQ
B9968SQ STD
FDD FFC
B9968MA
CN2
RS-422
TM1
COMM TERM BOARD ASSY
ETHERNET RS-232
CN2
CN3
COMM BOARD ASSY
CN10
CN1
FDD BOARD
ASSY
B9968SW
ARARM BOARD ASSY
B9968US (ALM)
B9968UT (REM/ALM)
SCANNER ASSY
B8700RM (MON)
B8700QM (ISO MON)
B8700RS (CTRL. &MON) B8700QS (ISO CTRL. & MON)
CN2
CN1
DISP FPC
B9967MB
AD BOARD ASSY
B8700RP(MON)
B8700QP (ISO MON)
B8700RD(CTRL. &MON) B8700QD (ISO CTRL. & MON)
CN2
CN14
CN1
CN12
B8700RN (MON)
B8700QN (ISO MON)
B8700RQ (CTRL. & MON) B8700QQ (ISO CTRL. & MON)
TERMINAL ASSY
CN1
CN5
B9968SF
6.1
Schematic Diagram
RJC BOARD ASSY
Chapter 6 Schematic Diagram
CX1000 Schematic Diagram
6
6-1
6-2
CN2
CN14
CN4
CN13
CN15
CN3
CN11
CN41
CN1
VGA OUT
CN3
CN2
CN1
B9968UX
VGA BOARD ASSY
CN2
DISP CABLE
B9968MD
AD BOARD ASSY
B9968QA
CN2
LCD
A1067VA
INVERTER
UNIT
A1527UP
CN2
CN1
CN35
B9900BR
BATTERY ASSY
CN2
B8700UZ
ZIP DRIVE
A1131UN
CN2
ZIP CONN BOARD
ASSY
B9968SU
B9968MB
B9968MA
FDD DRIVE
A1092UN
IDE FFC
CN1
CN2
FDD FFC
CN2
+RS-232
CN1
CN2
PC-CARD BOARD
ASSY
B9968SV
TM1
RS-422
B9968RK +RS-422
B9968RJ
CN2
CN3
ETHERNET RS-232
IDE BOARD
ASSY
B9968ST
CN1
B9968TP
FDD BOARD
ASSY
B9968SW
CN1
CN1
+RS-232
+RS-422
B9968TQ
CN1
ALARM BOARD
ASSY
B9968US ALM
B9968UT REM/ALM
CN1
TPS4CH BOARD
ASSY
B9968QW TPS4CH
ASSY
MOTHER BOARD
B9968SP(SCREW)
TEST
B9968RG STD
CN4
B9968SQ STD
CN5
CN1
CN1
CN9
DIO MAIN BOARD
ASSY
B8700RE DIO
CN1
CN2
DIO SUB BOARD
ASSY
B8700RF DIO
COMM BOARD ASSY
CN1
CN8
OUTPUT MAIN
BOARD ASSY
B8700RG
CN2
CN2
OUTPUT SUB
BOARD ASSY
B8700RH
COMM TERM BOARD ASSY
CN4
CN1
CN1
CN7
OUTPUT MAIN
BOARD ASSY
B8700RG
OUTPUT MAIN
BOARD ASSY
B8700RG
CN1
CN6
CN2
CN2
CN2
CN2
SCANER ASSY
B9968SD
B9968TY(ISO)
CN4
CN33
OUTPUT SUB
BOARD ASSY
B8700RH
OUTPUT SUB
BOARD ASSY
B8700RH
MEMORY BOARD ASSY
SW BOARD
ASSY
B9968SK
CN3
INV CABLE
B8700QK
CN4
B8700RK
KEY FFC
B9968MC
CN11
B8700RA
DISPLAY BOARD ASSY
CN3
CN1
DISP CABLE
B9968MD
DISP-VGA CABLE B9968MM
A1484UP(STD)
POWER SUPPLY
CN1
B9968MH
B9968MG
CN3
CN3
CN31
CN36 CN37
CN1 CN101
CN2
CN34
TERMINAL ASSY
B9968UF
B9968UM(ISO)
CPU BOARD ASSY
CN1
CN32
CN1
CN5
B9968SF
RJC BOARD ASSY
SCANER ASSY
B9968SD
B9968TY(ISO)
CN25
CN4
CN23
CN2
CN1
CN3
CN21
AD BOARD ASSY
B9968QA
POW CABLE
CN2
B8700SL SCREW(CN1)
SUB POW BOARD ASSY
CN3
CN4
CN2
CN24
TERMINAL ASSY
B9968UF
B9968UM(ISO)
CN26 CN27
CN1 CN101
CN1
CN22
POW CABLE
VGA CABLE
B9968MN
CN42
SCREW
SCANER ASSY
AD BOARD ASSY
B8700SJ(2LOOP)
B8700RC(2LOOP)
B8700RB(4,6LOOP) B8700RJ(4,6LOOP)
CN16 CN17
CN1 CN101
CN1
CN12
TERMINAL ASSY
B8700RR(2LOOP)
B9968UM(4,6LOOP)
CN1
CN5
B9968SF
B9968SF
CN1
CN5
RJC BOARD ASSY
RJC BOARD ASSY
6.2
CX2000 Schematic Diagram
SM 04L31A01-01A
Chapter 7 Customer Maintenance Parts List
7.1
CX1000 Customer Maintenance Parts List
7
Customer Maintenance Parts List
Note:
Parts marked with a
SM 04L31A01-01A
symbol are CMPL (Customer Maintenance Parts List) parts.
7-1
7.1 CX1000 Customer Maintenance Parts List
Complete Set
5
6
5
7
1
7-2
2
3
4
Item
1
2
3
4
5
Part No.
B9967AM
B8700EN
Y9308LB
B8700FA
B9968AT
Qty
1
1
2
1
4
6
7
B8700DR
B9967AX
2
1
Description
Tag Cover
Tag Plate
B.H. Screw, M3x8
Bezel Assembly (see page 7-5)
Sheet
Sheet
Packing
Note:
CMPL Parts
SM 04L31A01-01A
7.1 CX1000 Customer Maintenance Parts List
17
21 20 19 18
3
4
5
6
8
12 11
10 9
7
14 15 16
13
7
Customer Maintenance Parts List
22
1
2
35
36
37
38 39
40 41 42
27 28 29 30
26
24 25
23
32 33 34
31
SM 04L31A01-01A
7-3
7.1 CX1000 Customer Maintenance Parts List
2
Part No. Qty
B8700RP
1
B8700RD 1
B8700QP 1
B8700QD 1
B8700RM 1
Description
MON AD Assembly (CX1006 not /N2)
C&M AD Assembly (CX1206 not /N2) (select)
ISO MON AD Assembly (CX1006 /N2)
ISO C&M AD Assembly (CX1206 /N2)
MON Scanner Assembly (CX1006 not /N2)
3
4
B8700RS
B8700QM
B8700QS
B8700FF
B8700RA
1
1
1
1
1
C&M Scanner Assembly (CX1206 not /N2) (select)
ISO MON Scanner Assembly (CX1006 /N2)
ISO C&M Scanner Assembly (CX1206 /N2)
CPU Board Assembly
CPU Board Assembly
5
6
7
8
9
B9967TA
B8700NP
B8700EE
B8700QZ
B8700UZ
1
1
1
1
1
10
11
12
13
B9900BR
B9968EM
A9069KY
B9967DA
B9967DB
1
1
1
1
1
Battery Assembly
Rivet
Clamp
COMM Board Assembly (CX1
COMM Board Assembly (CX1
B9967DD
B9967DC
B9968TQ
B9968TP
B9968SQ
1
1
1
1
1
COMM Board Assembly (CX1 6COMM Board Bracket
COMM Board Assembly (CX1
COMM Board Assembly (CX1
COMM Board Assembly (CX1
B9968CZ
B9968CZ
B8700FG
B9967DV
B9967CW
1
2
1
1
1
B9967DW
B8700SL
B9967UD
A1485UP
B9967TF
1
1
1
1
1
Gel Sheet (CX1 6- -0), (CX1 6- -1) (select)
Gel Sheet (CX1 6- -2)
S-Power Assembly (not /P1) (select)
S-Power Assembly (/P1)
Power Bracket Cover (not /P1)
(select)
Power Bracket Cover (/P1)
Sub Pow Board Assembly (not /P1)
24V Power Board Assembly (/P1)
Power Supply (not /P1)
(select)
DC Power Board Assembly (/P1)
21
22
23
24
25
B9967CX
B9967TB
B9967GA
B9967DM
B9967DN
1
1
1
1
1
Power Bracket Base
Mother Board Assembly
FDD Drive Assembly (CX1 06-1)
Sheet
Sheet
26
27
28
29
30
B9968GA
A1092UN
Y9204LS
B9968SW
B9968MA
1
1
3
1
1
31
32
33
34
35
B9968GL
A1492JS
Y9208LB
B9968SV
B9967GD
1
1
2
1
1
ATA Drive Assembly (CX1 06-3)
Socket
Screw
PC-Card Assembly
Zip Drive Assembly (CX1 06-2)
36
37
38
39
40
B9967DM
B9968GD
A1150UN
Y9203LB
B9968SU
1
1
1
3
1
Sheet
Zip Drive Assembly
Memory System
Screw
Zip Conn Board Assembly
41
42
B9968ST
B9968MB
1
1
Item
1
14
15
16
17
18
19
20
7-4
Display Board Assembly
Memory Assembly
Name Plate
Memory Board & Battery Assembly
Memory Board Assembly
6- -1)
6- -2) (select)
-0)
6- -1)
6- -2) (select)
6- -0)
FDD Drive Assembly
Memory System
Screw
FDD Board Assembly
FDD FCC
IDE Board Assembly
IDE FFC
Note:
CMPL Parts
SM 04L31A01-01A
7.1 CX1000 Customer Maintenance Parts List
Bezel Assembly
18c
20
18a
18
19
21
22
18b
7
Customer Maintenance Parts List
17
16
15
14
13
12
10
1
11
9
8
2 3
4
5
6
7
Item
1
2
3
4
5
Part No. Qty Description
B8700FH 1 Key Case Assembly
B9967BN 1
Hinge Pin
B9567AQ 1
Spring
B9967BP 1
Front Plate
E9655AL 1
Spring
Item
12
13
14
15
16
Part No. Qty Description
B9967BU 2
Screw
B9967AY
1
Packing
B9967MA 1
Key FPC
B9967BT
1
FPC Guard
B9967BX 1 Rivet
6
7
8
9
10
B9967BM
B9967BJ
B8700FL
B9967TC
B9967BZ
1
1
1
1
1
Door Knob
Front Cover
Key Top
SW Board Assembly
Micro SW Pin
17
18
18a
18b
18c
B8700FB
B9967BF
A1053VA
B9967AQ
A1039VZ
1
1
1
1
1
Sub Bezel Assembly
LCD Assembly
LCD
Name Plate
Back Light Module
11
B9967BK
1
Front Case
19
20
21
22
B9968BM
B9967MB
B9967BY
B9968EN
2
1
1
1
Hinge Arm
Display FFC
Stay Bracket
Bushing
SM 04L31A01-01A
7-5
7.1 CX1000 Customer Maintenance Parts List
20
21
25
24
28
22
27
23
18
26
19
7
4
2
3
1
5
6
16
13
8
11
12
10
14
15
17
9
7-6
SM 04L31A01-01A
7.1 CX1000 Customer Maintenance Parts List
Item Part No. Qty Description
1
B8700GA 1 Alarm Module (/A6)
B8700GB 1 Alarm Remote Module (/A6R)
(select)
B8700GC 1 Alarm Fail Module (/A4F)
B8700GD 1 Alarm Remote Fail Module (/A4FR)
B8700FT 1 CTRL Module 2 Loop (CX1206)
9
2
B9968DN
B8700CK
B9968DJ
B9968DF
B9900SG
1
2
2
1
2
B9968DG
B8700GF
B8700GH
B8700GK
B8700GM
1
1
1
1
1
Cover
Name Plate (/A6)
Name Plate (/A6R)
Name Plate (/A4F)
Name Plate (/A4FR)
B8700EW
B8700GE
B8700GG
B8700GJ
B8700GL
1
1
1
1
1
Name Plate (CX1206)
Name Plate (/A6)
Name Plate (/A6R)
Name Plate (/A4F)
(select)
Name Plate (/A4FR)
B8700EV
B8700HJ
B8700HK
B8700HG
B8700HH
1
1
1
1
1
Name Plate (CX1206)
Name Plate (/A6)
Name Plate (/A6R)
Name Plate (/A4F)
(select)
Name Plate (/A4FR)
B8700HL
B8700FP
B8700FQ
B8700FR
B8700FS
1
1
1
1
1
B9968DJ
B9968DF
B9900SG
B9968DG
B8700EH
2
1
2
1
1
Screw
Cover Assembly
Screw
Cover
Name Plate (CX1006 not /N2)
B8700EL
B8700EQ
B8700ET
B8700EG
B8700EK
1
1
1
1
1
B8700EP
B8700ES
B8700EJ
B8700EM
B8700ER
1
1
1
1
1
Name Plate (CX1206 not /N2) (select)
Name Plate (CX1006 /N2)
Name Plate (CX1206 /N2)
Name Plate (CX1006 not /N2)
Name Plate (CX1206 not /N2)
(select)
Name Plate (CX1006 /N2)
Name Plate (CX1206 /N2)
Name Plate (CX1006 not /N2)
Name Plate (CX1206 not /N2)
(select)
Name Plate (CX1006 /N2)
B8700EU
B8700ED
B8700EF
B9968EG
B9968RJ
1
1
1
1
1
Name Plate (CX1206 /N2)
Name Plate (not /P1) (select)
Name Plate (/P1)
Power Plate
COMM Term Board Assembly (CX1
B9968RK
B9968RG
Y9308LB
B9968AJ
B9968AG
1
1
2
1
1
COMM Term Board Assembly (CX1
COMM Term Board Assembly (CX1
B.H. Screw, M3x8
Sheet (CX1 6- -0)
Name Plate (CX1 6- -1) (select)
25
B9968AH
Y9305LB
B9968EH
B9968EJ
Y9305TS
1
1
1
1
1
Name Plate (CX1 6- -2)
B.H. Screw, M3x5
Blind Bracket (CX1 6- -0)
(select)
RS-232 Bracket (CX1 6- -1)
Tapping Screw (CX1 6- -1, -0)
26
27
28
Y9308LB
B9968EE
A1447JZ
1
1
1
B.H. Screw, M3x8
Terminal
Modular Cover
3
4
5
6
7
8
10
16
17
18
19
20
21
22
23
24
SM 04L31A01-01A
(select)
Name Plate (CX1206)
CTRL MEAS 0 Loop Module Assembly (CX1006 not /N2)
CTRL MEAS 2 Loop Module Assembly (CX1206 not /N2) (select)
CTRL MEAS 0 Loop RTD Module Assembly (CX1006 /N2)
CTRL MEAS 2 Loop RTD Module Assembly (CX1206 /N2)
7
Customer Maintenance Parts List
11
12
13
14
15
Conn Cover Assembly
Screw (CX1206)
(select)
Screw (/A6, /A6R, /A4F, /A4FR)
Cover Assembly
Screw
6- -1)
6- -2)
6- -0)
(select)
Note:
CMPL Parts
7-7
7.2
CX1000 Standard Accessories
1
2
3
4
6
5
Item Part No.
1
IM04L31A01-03E
IM04L31A01-04E
IM04L31A01-72E
IM04L31A01-73E
2
B9900BX
3
4
5
6
7
7-8
E9655FX
A1053MP
B9968PK
CXA100-01
B8700MA
Qty
1
1
1
1
2
5
1
1
1
1
7
Description
DAQSTATION CX1000 User’s Manual
DAQSTATION CX1000 Operation Guide
Precautions on the Use of the CX1000/CX2000
CX1000 Installation and Connection Guide
Bracket Assembly
B.H. Screw, M4x6 ( )
Mag Memory :Zip 100MB disk (DX1 06-2)
Memory System :ATA flash memory card (DX1 06-3)
DAQ Standard for CX
Note:
CX1000/CX2000 electric manual
CMPL Parts
SM 04L31A01-01A
7.3
CX2000 Customer Maintenance Parts List
7
Customer Maintenance Parts List
Note:
Parts marked with a
SM 04L31A01-01A
symbol are CMPL (Customer Maintenance Parts List) parts.
7-9
7.3 CX2000 Customer Maintenance Parts List
Complete Set
1
4
3
2
6
5
7
2
3
4
Part No.
B8700BA
B8700BE
Y9414LB
B8700AF
B9968AM
Qty
1
1
3
1
1
5
6
7
B9968AT
B8700DR
B9968AX
4
4
1
Item
1
7-10
Description
Bezel Assembly†
(select) (see page 7-13)
Bezel Assembly*
B.H. Screw, M4x14
Tag Plate
Tag Cover
Note:
*
CX2
0- - -1
Sheet
†
CX2
0- - -2
Sheet
CMPL parts
Packing
SM 04L31A01-01A
7.3 CX2000 Customer Maintenance Parts List
1
2
3
4
5
29
28
6
7
8
9
10
11
43
7
44
21 20 19 22
45 1314 15
16
12
23
17
18
Customer Maintenance Parts List
24 25 26 27
34
39
38
37
36
35
41
42
40
33
32
30
31
SM 04L31A01-01A
7-11
7.3 CX2000 Customer Maintenance Parts List
Part No.
B8700SL
B9967UD
B8700RC
B8700RB
B8700SJ
Qty
1
1
1
1
1
B8700RJ
B9968QA
B9968SD
B9968TY
B9968QA
1
1
1
1
1
Description
Sub Power Board Assembly (not /P1)
(select)
S24-Sub Power Board Assembly (/P1)
2Loop AD Board Assembly (CX2210, 2220)
(select)
4Loop AD Board Assembly (CX2410, 2420, 2610, 2620)
2Loop Scanner Assembly (CX2210, 2220)
(select)
4Loop Scanner Assembly (CX2410, 2420, 2610, 2620)
Slow AD (PT) Assembly
10ch Scanner Assembly
(select)
10ch ISO Scanner Assembly (/N2)
Slow AD (PT) Assembly (CX2 20)
B9968SD
B9968TY
Y9414LB
B9968EL
A1193MN
1
1
1
1
1
10ch Scanner Assembly (CX2
10ch Scanner Assembly (CX2
B.H. Screw, M4x14
Clamp
Magnetic Parts
20)
(select)
20 /N2)
1
1
1
1
1
Comm Board Assembly (CX2
Comm Board Assembly (CX2
Comm Board Assembly (CX2
CPU Board Assembly
CPU Board Assembly
0-1)
0-2) (select)
0-0)
12
13
B9968TQ
B9968TP
B9968SQ
B8700CW
B8700RA
14
15
16
17
18
B9968CX
B8700RK
B8700NA
B8700AE
B8700QZ
1
1
1
1
1
19
20
21
22
23
B9900BR
A9069KY
B9968EM
B8700UZ
B9968GA
1
1
1
1
1
Battery Assembly
Clamp
Rivet
Memory Board Assembly
FDD Drive Assembly (CX2
0-1)
24
25
26
27
28
A1092UN
Y9204LS
B9968MA
B9968SW
A1484UP
1
3
1
1
1
Memory System
Screw
FDD FCC
FDD Board Assembly
Power Supply (not /P1)
29
30
31
32
B9968SZ
B9968SP
B9968GL
A1492JS
Y9208LB
1
1
1
1
2
(select)
DC24 Power Assembly (/P1)
Mother Board Assembly
ATA Drive Assembly (CX2
0-3)
Socket
Screw
33
34
35
36
37
B9968SV
B9968GD
A1150UN
Y9203LB
B9968MB
1
1
1
3
1
PC-Card Board Assembly
Zip Drive Assembly (CX2
0-2)
Memory System
Screw
IDE FFC
38
39
40
41
42
B9968SU
B9968ST
B9968HQ
B9968HR
B9968UX
1
1
1
1
1
Zip Conn Board Assembly
IDE Board Assembly
VGA Board Assembly (/D5)
Bracket
VGA Board Assembly
43
44
45
A1193MN
Y9414LB
B9968EL
1
1
1
Magnetic Parts (/D5)
B.H. Screw, M4x14 (/D5)
Clamp (/D5)
Item
1
2
3
4
5
6
7
8
9
10
11
7-12
CPU Bracket
Display Board Assembly
Memory Board Assembly
Name Plate
Memory Board & Battery Assembly
SM 04L31A01-01A
7.3 CX2000 Customer Maintenance Parts List
Bezel Assembly
25
26
24
23
22
29
28
27
21
20
19
Customer Maintenance Parts List
18
17
16
15
14
13
11
12
10
4
2
3
4
5
6
7
8
9
10
11
12
13
Part No.
B8700BR
B8700BV
B9968BX
B9900NQ
B9968BW
Model
B8700BA
B8700BE
Qty
Item
1
1
1
1 1
1 1
1 1
B9968BS
B9567AQ
B9968BY
B8700BW
B8700BY
1 1
1 1
1 1
1
1
B9968SK
B9968BT
B9968BZ
B9968AY
B9968GZ
1
1
1
1
5
SM 04L31A01-01A
9
5
1
1
1
1
5
1
Description
Key Case Assembly (for English)
(select)
Key Case Assembly (for Japanese)
Door Knob
Spring
Front Plate
Front Cover
Spring
Hinge Pin
Key Top (for English)
Key Top (for Japanese) (select)
Switch Board Assembly
Front Case
Micro Switch Pin
Packing
Screw
8
6
7
Item
14
15
16
17
29
Part No.
B9968BU
B9968MC
B8700BB
A1067VA
A1046VZ
18
19
20
21
22
Qty
Model
B8700BA
B8700BE
2 3
7
1
1
1
1
1
1
1
1
1
1
Description
FPC Guard
Key FFC
Sub Bezel Assembly
LCD
Back Light
B9968ML
B9968BL
A1527UP
B9968EN
B9988DL
1
1
1
1
2
1
1
1
1
2
Inverter Cover
Stay Bracket
Power Supply
Bushing
Screw
23
24
25
26
27
B9968BM
B9968BQ
B9543SQ
B9968BP
B8700DD
2
1
5
1
1
2
1
5
1
1
Hinge Arm
Hinge Bracket
NRP-345
Hinge Bracket
Blind Sheet
28
B8700DC
1 1
Blind Sheet
7-13
7.3 CX2000 Customer Maintenance Parts List
59
58
60
71
65
64
70
68
61
57
62
63
66
69
31
27
26
25 29 28
30
32
39
35
34
33 37 36
38
40
47
43
42
41 45 44
46
48
55
51
50
49 53 52
54
56
7
2
4 3
5
6
8
1
15
10
12 11 9
13
14
16
23
18
20 19
21
22
24
17
67
7-14
SM 04L31A01-01A
7.3 CX2000 Customer Maintenance Parts List
Qty
Item
Part No.
1
B8700CP
B8700CQ
B8700CR
B9968DN
B9968DJ
1
1
1
1
2
B9968DF
B9900SG
B9968DG
B8700AP
B8700AQ
1
2
1
1
1
Cover Assembly
Screw
Cover
Name Plate (for B8700CP)
Name Plate (for B8700CQ) (select)
B8700AR
B8700AV
B8700AW
B8700AX
B8700HP
1
1
1
1
1
Name Plate (for B8700CR)
Name Plate (for B8700CP)
Name Plate (for B8700CQ) (select)
Name Plate (for B8700CR)
Name Plate (for B8700CP)
10
B8700HQ
B8700HR
B8700CS
B8700CU
B9968DJ
1
1
1
1
2
11
12
13
14
B9968DF
B9900SG
B9968DG
B8700DS
1
2
1
1
67
2
3
4
5
6
7
8
9
Description
CTRL IN MO. AS. 2L (CX22
)
CTRL IN MO. AS. 4L (CX24
)
CTRL IN MO. AS. 6L (CX26
)
Conn Cover Assembly (CX20
)
Screw
Part No.
49
B8700CY
B8700CX
B8700CZ
B8700CJ
B8700DX
1
1
1
1
1
DIO Module Assembly (/CST1)
Alarm Terminal Assembly (/A6)
Alarm Terminal Assembly (/A6R)
Alarm Terminal Assembly (/TPS4)
Alarm Terminal Assembly (/A4F)
B8700DZ
B9968DN
B9968DF
B9968DG
B9900SG
1
1
1
1
2
Alarm Terminal Assembly (/A4FR)
Conn Cover Assembly
Cover Assembly
Cover
Screw
B8700CK
B9968DJ
B8700AY
B8700DJ
B8700DK
2
2
1
1
1
B8700HW
B8700DG
B8700DH
B8700AZ
B8700BH
1
1
1
1
1
Screw (/CST1)
Screw (/A6 /A6R /TPS4 /A4F /A4FR)
Name Plate (/CST1)
Name Plate (/A6)
Name Plate (/A6R)
(select)
Name Plate (/TPS4)
Name Plate (/A4F)
Name Plate (/A4FR)
Name Plate (/CST1)
Name Plate (/A6)
B8700BJ
B8700HZ
B8700DE
B8700DF
B8700HY
1
1
1
1
1
Name Plate (/A6R)
Name Plate (/TPS4)
Name Plate (/A4F)
Name Plate (/A4FR)
Name Plate (/CST1)
B8700HJ
B8700HK
B8700HX
B8700HG
B8700HH
1
1
1
1
1
Name Plate (/A6)
Name Plate (/A6R)
Name Plate (/TPS4)
Name Plate (/A4F)
Name Plate (/A4FR)
B9968EE
B9968AE
B9968HM
B9968RJ
B9968RK
1
1
1
1
1
Terminal
Name Plate (not /P1) (select)
Name Plate (/P1)
†
COMM Term Board Assembly
‡
COMM Term Board Assembly
B9968RG
Y9308LB
B9968AG
B9968AH
B9968AJ
1
2
1
1
1
COMM Term Board Assembly *
B.H. Screw, M3x8
Name Plate †
(select)
Name Plate ‡
Sheet *
65
Y9305LB
B9968EG
B9968EH
B9968EJ
Y9305TS
1
1
1
1
1
B.H. Screw, M3x5
Power Plate
Blind Bracket *
†
RS-232 Bracket
Tapping Screw
66
68
69
70
71
Y9308LB
A1447JZ
B9968MN
B9968EK
B8700AG
1
1
1
1
1
B.H. Screw, M3x8
Modular Cover
VGA Cable (/D5)
(select)
Cap (not /D5)
Name Plate
(select)
67
50
51
52
53
54
(select)
Name Plate (for B8700CQ)
Name Plate (for B8700CR)
INPUT MO. AS. 10ch (CX2 10, 2 20)
(select)
3RTD INP. AS. 10ch (CX2 10, 2 20 /N2)
Screw
55
Cover Assembly
Screw
Cover
Name Plate (for B8700CS)
Qty
Item
56
Description
(select)
(select)
(select)
(select)
Name Plate (for B8700CU)
Name Plate (for B8700CS) (select)
Name Plate (for B8700CU)
Name Plate (for B8700CS) (select)
Name Plate (for B8700CU)
B8700CT
B8700CV
B9968DN
B9968DJ
B9968DF
1
1
1
2
1
INPUT MO. AS. 20ch (CX2 20)
3RTD INP. AS. 20ch (CX2 20 /N3) (select)
Conn Cover Assembly (CX2 10)
Screw
Cover Assembly
B9900SG
B9968DG
B8700DT
B8700DV
B8700AK
2
1
1
1
1
25
67
B8700BG
B8700HT
B8700HV
B8700CL
B9968DN
1
1
1
1
1
26
27
28
29
30
B9968DF
B9968DG
B9900SG
B8700CK
B8700AL
1
1
2
2
1
31
32
33
67
34
B8700AS
B8700HL
B8700CM
B9968DN
B9968DF
1
35
36
37
38
39
B9968DG
B9900SG
B8700CK
B8700AM
B8700AT
1
2
2
1
1
16
17
67
18
19
20
21
22
23
24
1
1
1
40
41
67
42
43
B8700HM
B8700CN
B9968DN
B9968DF
B9968DG
1
1
1
1
1
44
45
46
47
48
B9900SG
B8700CK
B8700AN
B8700AU
B8700HN
2
2
1
1
1
SM 04L31A01-01A
Screw
Cover
Name Plate (for B8700CT)
Name Plate (for B8700CV)
Name Plate (for B8700CT)
57
58
59
60
61
(select)
(select)
Name Plate (for B8700CV)
Name Plate (for B8700CT) (select)
Name Plate (for B8700CV)
CTRL Module AS. 2L (CX22
, CX24
, CX26
Conn Cover Assembly (CX20
)
62
63
64
) (select)
Cover Assembly
Cover
Screw
Screw
Name Plate
(select)
7
(select)
1
1
1
1
1
Customer Maintenance Parts List
B8700DU
B8700AJ
B8700BF
B8700HS
B8700HU
15
(select)
Name Plate
Name Plate
CTRL Module AS. 4L (CX24
, CX26
)
(select)
Conn Cover Assembly (CX20
, CX22
)
Cover Assembly
Cover
Screw
Screw
Name Plate
Name Plate
Name Plate
CTRL Module AS. 6L (CX26
)
Conn Cover Assembly (CX20
, CX22
Cover Assembly
Cover
Note:
, CX24
)
* CX2
0-
† CX2
0-
-0
-1
‡ CX2
0-
-2
(select)
Screw
Screw
Name Plate
Name Plate
Name Plate
7-15
7.4
CX2000 Standard Accessories
2
1
4
3
6
5
7
Item Part No.
1 IM 04L31A01-01E
IM 04L31A01-02E
IM 04L31A01-71E
IM 04L31A01-72E
2 B8700MA
3
4
5
6
7
B9900BX
E9655FX
A1053MP
B9968PK
CXA100-01
Qty
1
1
1
1
1
Description
DAQSTATION CX2000 User’s Manual
DAQSTATION CX2000 Operation Guide
CX2000 Installation and Connection Guide
Precaution on the Use of the CX1000/CX2000
CD for Manual for CX
2
5
1
1
1
Bracket Assembly
B.H. Screw, M4x6 ( )
Mag Memory :Zip 100MB disk (CX2
0-2)
Memory System :ATA flash memory card (CX2
DAQ Standard for CX
Note:
7-16
0-3)
CMPL parts
SM 04L31A01-01A
Chapter 8 Procedures for Disassembly (CX1000)
8.1
Removing the Bezel
WARNING
The service manual is to be used by properly trained personnel only. To avoid
personal injury, do not perform any servicing unless you are qualified to do so.
Refer to the safety precautions prior to performing any servicing. Even if
servicing is carried out according to this service manual, or by qualified
personnel, YOKOGAWA assumes no responsibility for any result occurring from
that servicing.
CAUTION
If removing the assembly, be sure to disconnect the power cable from the outlet
before doing so.
Opening the Bezel
1.
Open the Key Case Assembly then remove the two screws as shown.
8
IM 04L31A01-01E
The Bezel hooks on to holes in the top of the case. Pull the bottom of the bezel
outward slightly, lift the entire bezel upwards to release it from the case, then
swing the bottom of the bezel upwards to open it.
8-1
Procedures for Disassembly (CX1000)
2.
8.1 Removing the Bezel
Note
•
A gasket is attached to the edge of the case. When reinstalling the bezel, be sure that the
gasket is correctly fastened.
•
A lever is attached to the right side of the bezel. By hooking the lever onto the side of the
case, you can lock the bezel in the open position.
Lever
•
The power switch is located in the upper left as you are facing the instrument. When this
switch is turned OFF, it prevents power from being supplied to the instrument even when
the power cord is connected. Therefore be sure to turn the power switch ON before you
reassemble the instrument.
Power Switch
8-2
IM 04L31A01-01E
8.1 Removing the Bezel
Removing the Bezel
3.
Remove the two flexible cables that connect the bezel to the main unit. The
connector utilizes a latch. Pull outwards on the left and right sides of the latch to
release it, then pull out the cable.
Connector
4.
Release the bezel by pushing the latches on the left and right hinge arms using
a long pointed tools such as a Phillips head screw driver. With the latches
pushed in, pull the bezel out and remove it from the main unit.
Latch
Hinge Arm
8
Procedures for Disassembly (CX1000)
CX with the front bezel removed
IM 04L31A01-01E
8-3
8.2
Removing the Board Assemblies and the Drive
1.
Remove the bezel (see section 8.1).
Removing the Board Assemblies
2.
Remove the three bracket screws.
3.
Slide the bracket down to pop it out of position, then remove it. Removing the
bracket allows removal of all board assemblies.
CX with the bracket removed.
S-Power Assembly
Comm Board Assembly
CPU Board Assembly
AD Assembly
MON Scanner Assembly
4.
Pull out and remove the S-Power assembly, Comm Board assembly, and CPU
Board assembly.
You may have to pull forcefully to remove the MON Scanner assembly and the
AD assembly. You can pry them out gradually by inserting tools into the holes
on either side of the board, then rocking the board side to side while pulling.
5.
Note
•
•
8-4
The connection where the AD assembly is inserted into the mother board may be tight.
When reinserting the boards, make sure that they are completely inserted into the
connectors.
If it is difficult to grasp the MON Scanner assembly, first remove the drive to provide extra
space (see next page).
IM 04L31A01-01E
8.2 Removing the Board Assemblies and the Drive
Removing the Drive
1.
Remove the screw as shown in the figure below.
2.
Remove the drive by pulling it outwards.
CAUTION
The ZIP drive has a thin transparent plate that can be sharp. Take care not to
cut your fingers when removing the drive.
CX with all boards and the drive removed.
8
Procedures for Disassembly (CX1000)
IM 04L31A01-01E
8-5
8.3
Removing the Keyboard
1.
2.
3.
Remove the bezel (see section 8.1).
Remove the two screws attaching the aluminum sheet to the back of the bezel.
Remove the keyboard flat cable rivet.
When removing the rivet, first pull out the pin.
Aluminum Sheet
Rivet
4.
Use the tip of a pen to push in the hinge pin on the left side of the Key Case
assembly, then pull the assembly toward you to remove it.
Be careful not to damage the flat cable when removing the assembly.
5.
Remove the two front case screws from the back of the key board.
Tightening torque: 0.5—0.6 Nm (5—6 kgf cm)
The front case is snapped on to the front cover. Use a tool such as a flathead
screwdriver to pry open the front case and remove it.
6.
8-6
IM 04L31A01-01E
8.3 Removing the Keyboard
Disassembled Key Case Assembly
8
Procedures for Disassembly (CX1000)
IM 04L31A01-01E
8-7
8.4
Replacing the Backlight
1.
2.
Remove the bezel (see section 8.1).
Remove the two screws attaching the aluminum sheet on the back of the bezel,
and the rivet that fastens the flat cable (see section 8.3).
Aluminum Sheet
Rivet
Display Bracket
Earth Bracket
3.
4.
5.
Remove screw numbers 1?3 as shown, then remove the Earth bracket.
Remove screw number 4, then remove the Display bracket.
Remove the LCD screen from the plastic screen cover, and set the LCD screen
down on a static-proof surface.
Note
Be careful not to scratch the LCD screen when handling it.
6.
Remove the two screws as shown, then remove the rear cover.
Note
Only use a screw driver that precisely fits the screws.
7.
8-8
Remove the four screws from the sides of the LCD screen as shown.
IM 04L31A01-01E
8.4 Replacing the Backlight
8.
9.
Remove the four screws from the inside corners of the LCD as shown.
Remove the two contact segments one at a time by grasping them with
tweezers.
Contact segment
Lump Cable
Bracket
Connector
FFC
Contact segment
10.
11.
Remove the FFC and lump cable from their connectors.
Slowly lift the bracket upward to remove the bracket assembly.
Note
•
•
Take care not to damage any components on the inverter or signal processing boards.
Be careful not to damage the FFC.
LCD assembly with the bracket assembly removed
Contact segment
8
Being careful not to damage any surrounding parts, grasp the backlight and
slowly pull it out.
Note
•
If the backlight is broken, be careful not to touch any glass shards when removing it. Also,
check for glass shards that may have fallen into the lamp holder or other areas, and
remove them.
• Dirt and grime on the backlight and LCDs can cause unevenness in display intensity. Be
sure to keep these devices clean as you handle them.
LCD assembly with the backlight removed
IM 04L31A01-01E
8-9
Procedures for Disassembly (CX1000)
12.
8.5
Removing the Terminal Assembly
WARNING
The service manual is to be used by properly trained personnel only. To avoid
personal injury, do not perform any servicing unless you are qualified to do so.
Refer to the safety precautions prior to performing any servicing. Even if
servicing is carried out according to this service manual, or by qualified
personnel, YOKOGAWA assumes no responsibility for any result occurring from
that servicing.
CAUTION
When removing the assembly, be sure to disconnect the power cable from the
outlet before doing so.
8-10
1.
Remove the screws from the upper right and lower left of the two terminal
assemblies.
2.
Pull out the terminal assemblies.
IM 04L31A01-01E