Grounding; Communication Settings - Mitsubishi Electric FX5 User Manual
Melsec iq-f series
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Also See for FX5:
- Programming manual (1112 pages) ,
- User manual (958 pages) ,
- Reference manual (44 pages)
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Grounding
Grounding should be performed as stated below.
• Perform Class-D grounding. (Grounding resistance: 100 or less)
• Independent grounding should be performed for best results.
When independent grounding cannot be performed, perform "shared grounding" as shown in the following figure.
For details, refer to the following.
FX5U User's manual (Hardware)
FX5UC User's manual (Hardware)
Other
PLC
equipment
Independent grounding
(Best condition)
• The grounding wire size should be AWG 14 (2 mm
• The grounding point should be close to the PLC, and all grounding wires should be as short as possible.
5.6
Communication Settings
For the FX5 communication settings of this function, parameters are set using GX Works3. For details about GX Works3, refer
to GX Works3 Operating Manual.
Setting of parameter differs according to the module used. The procedure for each module is as follows.
Built-in RS-485 port (CH1)
Navigation Window Parameter FX5UCPU Module Parameter 485 Serial Port
Window
The following screen will be displayed if [Non-protocol Communication] is set for the communication protocol type.
■Basic Settings
■Fixed Setting
5 NON-PROTOCOL COMMUNICATION
136
5.6 Communication Settings
Other
PLC
PLC
equipment
Shared grounding
Common grounding
(Good condition)
2
) or larger.
Other
equipment
(Not allowed)
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Troubleshooting
