6 WIRING
6.3 Grounding
95
6
6.3
Grounding
Perform the following.
• Perform class D grounding (Grounding resistance: 100
or less).
• Ground the PLC independently when possible.
• If the PLC cannot be grounded independently, perform the "Shared grounding" shown below.
PLC extension devices (excluding communication adapters)
• Bring the grounding point close to the PLC as much as possible so that the ground cable can be shortened.
PLC
PLC
PLC
Other
equipment
Other
equipment
Other
equipment
Independent grounding
(Best condition)
Shared grounding
(Good condition)
Common grounding
(Not allowed)
PLC
CPU
module
Extension
module
Other
equipment
Expansion
adapter
Independent grounding
class D grounding
(grounding resistance: 100
or less)
Summary of Contents for MELSEC iQ-F FX5UC-32MT/D
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