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LOADING AND INSTALLATION
9.
(3) Grounding
(a) Carry out the independent grounding if possible.
(b) If independent grounding is impossible, carry out the shared grounding (2) as
shown below.
(c) Use thick cables up to 2mm
2
. Bring the grounding point close to the
programmable controller as much as possible so that the ground cable can be
shortened.
(d) If any malfunction occurs due to grounding, disconnect either or both of the LG
and FG terminals of the base unit from the ground.
CAUTION
Ground the FG and LG terminals to the protective ground conductor dedicated to
the programmable controller.
Failure to do so may result in electric shock or malfunction.
Other device
(1) Independent grounding ......... Best
Other device
Other device
(2) Shared grounding ......... Good
(3) Common grounding ......... Not allowed
Programmable
controller
Programmable
controller
Programmable
controller