KYOWA WGA-910A Series User manual

IM-A-1144 July 2017
INSTRUCTION MANUAL
WGA-910A
INSTRUMENTATION AMPLIFIER
(FOR CC-Link OPTION)
WGA-910A-4: CC-Link
Thank you for purchasing KYOWA’s product WGA-910A Instrumentation
Amplifier.
Read this Instruction Manual carefully in order to make full use of the high
performance capabilities of the product.
Do not use the product in methods other than described in this Manual.
Generally, company names and trade names described in this Instruction Manual are trademarks or registered
trademarks of the companies.
This Instruction Manual may not be copied or reproduced, in whole or part, without consent of KYOWA.
Copyright © Kyowa Electronic Instruments Co., Ltd. All rights reserved.
The contents of the Instruction Manual are subjected to change without prior notice.
Please follow the safety precautions and other precautions described in this manual.

CONTENTS
STANDARD ACCESSORIES ·············································································································1
OPTIONAL ACCESSORIES ··············································································································1
SAFETY PRECAUTIONS (Do not forget to read the safety precautions prior to use.)···········································2
PRECAUTIONS ON CE MARKING ····································································································5
NOTATIONS USED IN THE INSTRUCTION MANUAL ···········································································6
1. OUTLINE OF PRODUCT ··············································································································7
2. CONTROLS AND INDICATORS (REAR PANEL) ················································································7
3. CC-Link SPECIFICATIONS············································································································7
4. COMMUNICATION CONNECTORS ································································································7
5. STATUS LED ·····························································································································8
6. CC-Link SETTINGS ·····················································································································9
6-1. Number of occupied stations·······································································································9
6-2. Communication speed ············································································································ 10
6-3. Station number····················································································································· 10
7. BUFFER ADDRESS OF PLC ········································································································ 11
8. ADDRESS MAP ························································································································ 12
8-1. REMOTE REGISTER: M → R ······························································································· 12
8-1-1. Address map of the remote register M → R ············································································ 12
8-1-2. Format of the remote register M → R ··················································································· 13
8-2. REMOTE REGISTER: R → M ······························································································· 15
8-2-1. Address map of the remote register R → M ············································································ 15
8-2-2. Format of the remote register R → M ··················································································· 16
8-3. REMOTE INPUT AND REMOTE OUTPUT ················································································ 18
8-3-1. Address map ·················································································································· 18
8-3-2. Contents of the remote output RY (M → R)············································································ 22
8-3-3. Contents of the remote input RX (R → M)············································································· 23
9. LIST OF COMMANDS ··············································································································· 24
9-1. COMMANDS FOR THE MEASUREING CONDITION (OPERATION PATTERN) ································· 24
9-2. COMMANDS FOR THE GENERAL SETTINGS··········································································· 25
9-3. COMMANDS FOR THE CONTROL INPUT SIGNALS ·································································· 26
9-4. UNIT LIST ························································································································· 26
10. SETTING PROCEDURES ·········································································································· 27
10-1. TO WRITE THE PRE-SET VALUES OF THE MEASUREING CONDITION (OPERATION PATTERN)
LIMITED DATA (BY USING THE REQUEST 1) ········································································· 27
10-2. TO WRITE THE PRE-SET VALUES OF THE COMMANDS (BY USING THE REQUEST 2)··················· 28
10-3. TO READ THE PRE-SET VALUES OF THE COMMANDS (BY USING THE REQUEST 2)···················· 29
10-4. CPU NORMAL OPERATION································································································· 29
10-5. ERROR STATUS FLAG········································································································ 30
11. TROUBLE SHOOTING ············································································································· 31
11-1. The setting isn’t changed by the commands·················································································· 31
11-2. Displaying Errors ················································································································ 31
11-3. The measured value does not change ························································································· 31
11-4. The measured value varies······································································································ 31
11-5. Operation stops and accepts no instruction at all ············································································ 31
11-6 Noisy ······························································································································· 31
12. MAINTENANCE ····················································································································· 32
13. OUTSIDE DRAWING ··············································································································· 33

1
STANDARD ACCESSORIES
The following accessories are packed with the WGA-910A-4.
When unpacking, check the contents to ensure that all accessories are enclosed.
Instruction Manual 1 (CD-R)
Test Certificate and Warranty 1 each
OPTIONAL ACCESSORIES
<CC-Link connector>
Wire mount socket (3M Japan Limited) 35505-6000-B0M GF
Branch connector (type-Y, 3M Japan Limited) 35715-L010-B00 AK
Termination connector (type-Y, 3M Japan Limited) 35T05-6M00-B0M GF

2
SAFETY PRECAUTIONS (Do not forget to read the safety precautions prior to use.)
The WGA-910A-4 is designed to be used according to "3. CC-Link SPECIFICATIONS."
Do not use the product in an environment exceeding the specifications.
Or, it may cause troubles.
PRIOR TO USE
For safe use of the product, do not forget to read the “Safety Precautions” prior to use.
Kyowa Electronic Instruments Co., Ltd. assumes no liability for any damage resulting from the user's failure to comply
with the safety precautions.
For safety operation of the product, the following symbol marks are used in the Instruction Manual.
Indicates “PROTECTIVE GROUND TERMINAL.”
Be sure to connect the GND terminal to the ground.
SAFETY SYMBOLS
For safety operation of the product, the following symbol marks are used in the Instruction Manual.
WARNING Improper operation of the system may result in death or severe injury of the operator.
CAUTION Improper operation of the system may result in injury of the operator and physical
damage of the system.

3
WARNING
Warning
Be sure to observe the safety precautions described in the WGA-910A Instruction Manual.
Power Supply
To prevent a fire hazard, before connecting the power cable, be sure to check the local line voltage is matched
with the operating voltage specified for the WGA-910A.
The power supply voltage is described in following.
AC100 V ～ 240 V 50/60 Hz Power consumption ： 20 VA or less
Power Cable and Power Outlet
To prevent an electric shock or fire hazard, connect a power cable and 3P-2P conversion adapter to a plug with
protective ground terminal.
When using 3P power cable, use a 3P power plug with protective ground terminal.
Operators must be cautioned that use of an extension power cable with no ground conductor disables the
protective ground function.
Check the Instruction Manual in advance, connect the power cable to the WGA-910A and connect the power
plug to an outlet.
Protective Ground
To prevent an electric shock hazard, be sure to ensure protective ground before connecting the power cable.
When using the 3P-2P conversion adapter, be sure to ground the grounding wire of the adapter to the GND
terminal.
When using a plastic 2P power cable, be sure to connect an optional grounding wire to the protective grounding
terminal.
For Electrical Operator Safety
To prevent an electric shock hazard, operators must be cautioned not to cut the protective grounding conductor
or disconnect the GND terminal.
Confirmation of Protective Ground
To prevent an electric shock hazard, be sure to check safe protective ground function before operating the
WGA-910A. If any abnormal matters are found in the protective ground function, fuse holder, etc., do not
operate the WGA-910A.
External Connection
To prevent an electric shock hazard, ensure the safe protective ground of all concerned instrument and then,
connect the WGA-910A to the measuring object and external devices, PC, etc.
Fuse
Used for preventing a fire hazard.
If you want to replace fuses, contact KYOWA or our representatives.
Inflammable Gaseous Environment
To prevent fire and explosion hazards, do not operate the WGA-910A where it is exposed to inflammable gases,
inflammable vapors or inflammable dust.
If Any Trouble Occurs
To prevent a fire hazard, if smoke is emitted from the WGA-910A, immediately disconnect the AC adaptor from
the receptacle and stop using the WGA-910A.
Maximum Input Voltage Range
The WGA-910A is a measuring instrument specified for strain gage transducers and strain gages. Do not input
high voltage. Or, deteriorated performance and damage of the product may result.
About built-in lithium battery
Do not short-circuit the battery terminals after disassembling. Or, it may cause an overheating and fire.
Never throw the battery into a fire or put it near a fire.
It may cause an overheating, fire, and explosion.
Do not charge the using battery since it is not rechargeable.
Or, it may explode.

4
CAUTION
Caution
Be sure to observe the safety precautions described in the WGA-910A Instruction Manual.
Do not use the product outdoors
Or, it may cause electric shock, fire hazard, lower the performance and cause troubles.
Do not turn ON the power switch immediately after turning it OFF
After turning OFF the power switch, wait (5 seconds) until the power supply is shut OFF before turning ON
the power switch again.
If the power is repeatedly turned ON and OFF within 5 seconds, rush current generated by switching the
power ON may damage the product.
Use the product within temperature ranging from -10 to +40 ℃
Use at temperatures exceeding the specified range may lower the performance and cause trouble.
If use under direct sunlight or in a cold place is inevitable, prepare a sunscreen or take proper measures to keep it warm.
Use the product in the specified operating humidity of 20 to 85 % RH
Use in a humid place exceeding the specified range or where it is exposed to splashing water may lower the
performance and cause trouble.
Do not use the product immediately after the change in the environment
Leave the product as it is until it becomes adaptable to the environment.
Abrupt change in ambient temperature due to transportation, etc. may cause dew condensation, which may
result in lower performance and troubles.
Use the product under environment without excessive vibration or high impact
Vibration resistance: 19.6 m/s
2
(2 G), 10 to 200 Hz (when in operation)
Use the product in an area where vibration and impact can be kept within the scope of specifications.
Continuous vibration or severe impact may cause deteriorated performance and system failure.
Do not use the product in strong electromagnetic field
Use the product in a magnetic field environment where the PC may be used.
Performance may be lowered and erroneous operation and troubles may result if it is used near a telemetry
system, microwave oven, electronic furnace or any other equipment generating a strong magnetic field.
Do not use the product under poor conditions
Operate the product within the range of 100 to 240 VAC (50/60 Hz). The power supply used for the product
should not experience an instantaneous power failure and be free from noise.
Do not pull cords and cables
Lay cords and cables with a certain allowance so that unreasonable force is not applied to the connections.
Or, it may interrupt the measurements, break the cables, and damage the connectors.
Avoid installing sensors and products near a welding machine
Failure to do so will pose the risk of erroneous data, malfunction and failure.
Do not disassemble or remodel the product
Or, it may cause electric shock hazards or damage the product. This warranty does not cover any damaged or
defective parts that results from disassembling or remodeling.
Do not use or strage the product under dusty or fine particles or corrosive gas environment
Use or strage under these environment, may result in lower performance and troubles.
Do not expose the product to the air if it is used and stored nearby sea
Air exposure nearby sea may cause lower performance and products failure.
Take care when handling the CD-R
Do not expose the CD-R to direct sun light, high temperature, or high humidity.
Do not apply pressure to the CD-R by laying object or bending.
Dust, scratches, and fingerprints on either side of the CD-R can cause write errors.
Preheat the product before use
After the power ON, always preheat the product for approximately 30 minutes.
Cleaning
When the product gets dirty, clean the product with a dry soft cloth. When dust exists inside the
WGA-910A, clean it by using an air blow gun. Do not touch electronic parts.

5
When satisfying the following conditions, we evaluated the compatibility against the requirements of the EU
Directives and confirmed that the product satisfied the requirements.
To connect products, be sure to use the following cables.
Cables applicable to the CC-Link Ver.1.10 (3-conductor shielded twisted-pair cable)
Be sure to wrap the CC-Link cable around the clamp-on ferrite core two turns near the connector.
Recommended ferrite core RFC-20 (KITAGAWA INDUSTRIES CO., LTD.)
Be sure to mount the product on the control panel, etc. Before turning ON the power, make sure the terminal
block on the back panel is covered to avoid contact with hands.
The product connection should be executed by experts in electrical work.
To immediately turn OFF the product, place switches or circuit breakers inside the building and near the product
and display the functions as well.
Use switches and circuit breakers conforming to the IEC60947-1 and IEC60947-3.
Use the product in area where elevation is 2000 m or below.
When mounting the product in your system, approaches to satisfy the CE marking requirements vary with the
configuration of the control panel to be used, the other devices to be connected, and wirings. Therefore,
customers are required to check whether the CE marking requirements on the product are satisfied or not.
Be sure to connect the protective grounding terminal to the ground by using the optional ground wire.
PRECAUTIONS ON CE MARKING
NOTE

6
The communication
RS-232C communication is not availavel.
NOTATIONS USED IN THE INSTRUCTION MANUAL
The following notations are used in the Instruction Manual for convenience.
Names described on the panel surface
Names described on the panel surface are expressed in double quotation mark " ".
Informational notes
Certain notations are used as necessary to attract your attention to information that requires special care when
handing the product, and to information provided for reference purposes.
Examples of Notations
IMPORTANT PRECAUTIONS WHEN USING WGA-910A AND OPTIONAL CC-LINK UNITS
Essential precautions required when handling the product.
NOTE
Reference items required when handling the product.
MEMO
NOTE

7
1. OUTLINE OF PRODUCT
The WGA-910A-4 is instrumentation amplifier with the CC-Link options.
This product is able to control devices and able to load indicated values by using a PLC (or sequencer).
2. CONTROLS AND INDICATORS (REAR PANEL)
(1) Communication
connectors
Connects the CC-Link cable for the PLC.
For details, see "4. COMMUNICATION CONNECTORS."
(2) Status LEDs Indicates the communication status. For details, see "5. STATUS LED."
3. CC-Link SPECIFICATIONS
Specifications Initial values
Version Ver.1.10
Station type Remote device station
Number of occupied stations 1 station, 2 stations, 4 stations 4 stations
Communication speed 10 Mbps, 5 Mbps, 2.5 Mbps, 625 kbps, 156 kbps 10 Mbps
Station number 1 to 64 1 stations
Connection cable Cables applicable to the CC-Link Ver.1.10
(3-conductor shielded twisted-pair cable)
4. COMMUNICATION CONNECTORS
The pins and signals are as follows.
Pin No. Signal name Signal content Remarks
1 DA Signal conductor DA
2 DB Signal conductor DB
3 DG Signal conductor ground
4 SLD Shield The SLD and FG are connected internally.
5 FG Frame ground
(1)
(2)

8
To locate the products at both ends of the CC-Link network, be sure to mount the termination
connectors.
The branch connector (type-Y) requires the wire mount socket.
The applicable connector of the CC-Link cables is as follows. (Optional accessories)
Name Model Manufacture
Wire mount socket 35505-6000-BOM-GF 3M Japan Limited
Branch connector (type-Y) 35715-L010-B00 AK 3M Japan Limited
Termination connector 35T05-6M00-BOM GF 3M Japan Limited
Connect cables as follows.
1) Strip the coating of the wire for approx. 30 to 35 mm.
Twist the wires together tightly.
The available wires are as follows.
Conductor size: 0.5 mm2(AWG20)
Insulated jacket O.D.: φ2.2 to φ3.0 mm
2) Insert the wires into the drain hole on the connector cover.
Push the connector cover into the body.
5. STATUS LED
Indicate the communication status as follows.
LED name ON OFF Flickering
RUN Working properly Resetting..., communication error ―――
SD Sending... ――― ―――
RD Receiving... ――― ―――
ERR CRC error Working properly ―――
NOTE