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10.6 Wiring
10.6.1 The precautions on the wiring
10
LOADING AND INSTALLATION
(3) Grounding
For grounding, perform the following:
• Use a dedicated grounding wire as far as possible. (Grounding resistance of
100 or less.)
• When a dedicated grounding cannot be performed, use (2) Common Grounding
shown below.
• For grounding a cable, use the cable of 2 mm
2
or more.
Position the ground-contact point as closely to the sequencer as possible, and
reduce the length of the grounding cable as much as possible.
Diagram 10.41 Grounding procedures
(3) Joint grounding Not allowed
Grounding
Programmable
controller
Programmable
controller
Programmable
controller
Another
equipment
Another
equipment
Another
equipment
Grounding
(1) Independent grounding Best (2) Common grounding Good
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