Mitsubishi FX3G Series User Manual

9 Preparation for Wiring and Power Supply Wiring
9.3 Grounding
110
FX3G Series Programmable Controllers
User's Manual - Hardware Edition
9.3 Grounding
Ground the PLC as stated below.
• Perform class D grounding. (Grounding resistance: 100 or less)
• Ground the PLC independently if possible.
If it cannot be grounded independently, ground it jointly as shown below.
Extension devices of PLC (except expansion board and special adapter)
• Use ground wires thicker than AWG14 (2 mm
2
).
• Position the grounding point as close to the PLC as possible to decrease the length of the ground wire.
PLC
Other
equipment
PLC
Other
equipment
PLC
Other
equipment
Shared grounding
Good condition
Common grounding
Not allowed
Independent grounding
Best condition
Expansion
board
Input/output
extension unit
Main unit
Special
adapter
Special
extension
Other
equipment
PLC
Independent grounding
Class D grounding
(grounding resistance : 100
or less)

Mitsubishi FX3G Series Specifications

General

Brand	Mitsubishi
Model	FX3G Series
Category	Controller
Language	English