This manual contains text, diagrams and explanations which will guide the reader in the correct installation
and operation of the FX
attempting to install or use the unit.
Further information can be found in the FX SERIES PROGRAMMING MANUAL(ΙΙ), FX
FX
/FX
Programming Manual, FX
3U
3UC
HARDWARE MANUAL of each PLC.
Compliance with EC directive (CE Marking)
This note does not guarantee that an entire mechanical module produced in accordance with the contents
of this note will comply with the following standards.
Compliance to EMC directive and LVD directive for the entire mechanical module should be checked by
the user/manufacturer. For more information please consult with your nearest Mitsubishi product provider.
Regarding the standards that comply with the main unit, please refer to either the FX series product
catalog or consult with your nearest Mitsubishi product provider.
Requirement for Compliance with EMC directive
The following products have shown compliance through direct testing (of the identified standards below)
and design analysis (through the creation of a technical construction file) to the European Directive for
Electromagnetic Compatibility (2014/30/EU) when used as directed by the appropriate documentation.
Attention
This product is designed for use in industrial applications.
Type:
Programmable Controller (Open Type Equipment)
Models:
MELSEC FX
from December 1st, 1998 FX
Standard
EN61131-2: 2007
Programmable controllers
— Equipment requirements and tests
Caution for EC Directive
The FX
-2AD have been found to be compliant to the European standards in the aforesaid manual and
2N
directive. However, for the very best performance from what are in fact delicate measuring and controlled
output device Mitsubishi Electric would like to make the following points;
As analog devices are sensitive by nature, their use should be considered carefully.
For users of proprietary cables (integral with sensors or actuators), these users should follow those
manufacturers installation requirements.
Mitsubishi Electric recommend that shielded cables should be used. If NO other EMC protection is provided,
then users may experience temporary loss or accuracy between ±10% in very heavy industrial areas.
However, Mitsubishi Electric suggest that if adequate EMC precautions are followed for the users
complete control system, users should expect accuracy as specified in this manual.
•
Sensitive analog cable should not be laid in the same trunking or cable conduit as high voltage
cabling. Where possible users should run analog cables separately.
•
Good cable shielding should be used. When terminating the shield at Earth — ensure that no earth
loops are accidentally created.
•
When reading analog values, EMC accuracy can be improved out by averaging the readings. This
can be achieved either through functions on the through a users program in the main unit.
FX
-2AD special function block and should be read and understood before
2N
/FX
0N
series manufactured
2N
-2AD
2N
Compliance with all relevant aspects of the standard.
EMI
• Radiated Emission
• Conducted Emission
EMS
• Radiated electromagnetic field
• Fast transient burst
• Electrostatic discharge
• High-energy surge
• Voltage drops and interruptions
• Conducted RF
• Power frequency magnetic field
-2AD SPECIAL FUNCTION BLOCK
2N
USER’S GUIDE
JY992D74701G
/FX
/FX
/FX
1N
2N
2NC
3S
/FX
/FX
/FX
3G
3GC
3U
Remark
/FX
/FX
/
3G
3GC
SERIES
3UC
1. Introduction
The FX
-2AD type analog input block (hereafter referred to as the FX
2N
analog input of two points (voltage and current input) into a digital value of 12 bits, and to forward the
values to the Programmable Controller (hereafter referred to as a PLC).
FX
2AD can connected to the FX
2N
—
Programmable Controllers.
1) The analog input is selected from the voltage or current input by the method of connecting wires.
At this time, assume the setting to be two channels common analog input (voltage or current input).
2) The analog to digital conversion characteristics can be adjusted.
3) The block occupies 8 I/O points which can be allocated from either inputs or outputs.
4) The data transfer with the PLC uses the FROM/TO instructions.
FX
/FX
series PLC can use direct specification of buffer memory.
3U
3UC
2. External Dimensions and Parts
3. Wiring
Voltage input 0~10V DC
Current input 4~20mA
*1
The FX
-2AD cannot have 1 channel as an analog voltage input and one channel as current input because both
2N
channels use the same offset and gain values. For current input please short circuit VIN and IIN as shown in the
diagram.
Connect a 0.1 to 0.47 µF 25V DC capacitor with the position of *2 when there is voltage ripple in the voltage input or
*2
there will be a lot of noise.
4. Connection with Programmable controller
1) The FX
-2AD and main unit are connected by a cable on the right of the main unit.
2N
2) Up to 4 FX
-2AD units can connect to the FX
2N
FX
/FX
/FX
3GC
3U
3UC
However the following limitation exists when the undermentioned special function blocks are connected.
FX
:
Main unit and powered extension units of 32 points I/O or less. Consumption current available for
2N
undermentioned special function blocks ≤ 190mA
FX
:
Main unit and powered extension units of I/O 48 points or more. Consumption current available
2N
for undermentioned special function blocks ≤ 300mA
FX
: Up to 4 undermentioned special function blocks can be connected regardless of the system I/O.
2NC
FX
: Main unit and powered extension units. Up to 2 undermentioned special function blocks can be
0N/1N
connected regardless of the system I/O.
Consumption current of 24V DC for one unit
The consumption current of the above units is to be subtracted from the service power supply of the
host PLC.
3) The blocks occupies 8 points. (The 8 points can be allocated from either inputs or outputs).
4) FX
-2AD consumes 5V DC by 20mA.
2N
The total 5V consumption of all special function blocks connected to a main unit or an extension unit
must not exceed the 5V source capacity of the system.
, FX
0N
1N
Mass (Weight): Approx. 0.2kg (0.44lbs)
Accessories: Special Function block number label
VIN
IIN
*2
COM
VIN
*1
IIN
COM
PLC
Extension cable
or, up to 4 for the FX
, FX
, FX
, FX
2N
2NC
37.3KΩ
250Ω
165KΩ
AG
37.3KΩ
250Ω
165KΩ
FX
-2AD
2N
series PLC, up to 5 for FX
0N
series PLC, all with powered extension units.
2NC
FX
-2AD
2N
50mA
-2AD) is used to convert the
2N
, FX
, FX
, and the FX
3G
3GC
3U
Dimensions: mm (inches)
Channel number enter
up to 8 for FX
1N,
FX
-2DA
2N
85mA
series
3UC
/FX
/
2N
3G
FX
-3A
0N
90mA
Mitsubishi Electric Manuals and Guides:
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