Mitsubishi Electric MELSEC iQ-F Series - Wiring Precautions

6 WIRING
6.1 Power Supply Wiring
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6 WIRING
This chapter describes the wiring methods, wiring products, and wiring precautions when using the FX5-CCLGN-MS.
6.1 Power Supply Wiring
Power connector layout
Power supply wiring
Grounding
Observe the following:
• Provide grounding with a ground resistance of 100 or less.
• Provide independent grounding when possible.
• If independent grounding cannot be provided, provide "shared grounding" as shown below.
• Keep the distance between the grounding point and the programmable controller as close as possible to shorten the length
of ground cable.
+
-
(Green)
(Black)
(Red)
Ground resistance of
100 ohms or less
(Grounding resistance:
100: or less)
24VDC
Red
Black Green
Master/local module
Programmable
controller
Another
device
Programmable
controller
Another
device
Programmable
controller
Another
device
Shared grounding
(Good condition)
Common grounding
(Not allowed)
Independent grounding
(Best condition)