Mitsubishi A2USCPU(S1), User Manual

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8 - 20
LOADING AND INSTALLATION 8.
(3) Grounding
(a) Carry out the independent grounding if possible.
(b) If the independent grounding is impossible, carry out the shared grounding (2) as
shown below.
(c) Use the cable of 2mm
2
(0.0031in.
2
) or more for grounding.
Set the grounding point closer to the programmable controller to make the
grounding cable short as possible.
(d) If a malfunction occurs due to grounding, separate either LG or FG of the base
unit, the device combination, or all the connection from the grounding.
CAUTION
Always ground the FG and LG terminals to the protective ground connector.
Failure to do so may cause an electric shock or malfunctions.
Programmable
controller Programmable
controller
Programmable
controller
Other device
(1) Independent grounding ......... Best
Other device
Other device
(2) Shared grounding ......... Good
(3) Common grounding ......... Not allowed