Mitsubishi A1SJH(S8) User Manual page 125

8. LOADING AND INSTALLATION
(3)
Always ground the FG and LG terminals to the protective ground connector.
CAUTION
Failure to do so may cause an electric shock or malfunctions.
Programmable
controller
(1) Independent grounding ......... Best
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.
Programmable
Other device
controller
(2) Shared grounding ......... Good
(c) Use the cable of 2mm
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.
Other device
2 2
(0.0031in. ) or more for grounding.
8 - 20
Programmable
Other device
controller
(3) Common grounding ......... Not allowed