Grounding - Mitsubishi Electric MELSEC L Series User Manual

6.5.2
Observe the following:
• Provide independent grounding when possible. Ground the FG and LG terminals of the programmable
• If independent grounding cannot be provided, employ shared grounding (figure (2) below).
• Use the thickest cable (maximum of 2). Bring the grounding point close to the programmable controller
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Grounding

controller with a ground resistance of 100 or less.
Programmable
Equipment
controller
Grounding
(1) Independent grounding Recommended
as much as possible so that the ground cable can be shortened.
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Programmable
Equipment
controller
Grounding
(2) Shared grounding Allowed
CHAPTER 6 INSTALLATION AND WIRING
Programmable
Equipment
controller
(3) Common grounding Not allowed
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