Mitsubishi Electric GOT SIMPLE Series Operation Manual page 175

• Remedy 1 (Refer to the figures Remedy 1-1 and 1-2 below.)
If the electric potential difference between the ground cable and the panel that houses the GOT is creating problems, connect
the ground cable to the panel also. If the wiring method as shown in Remedy 1-1 is not feasible, follow Remedy 1-2.
Connection cable
Ground cable from
the panel that houses
control equipment
Use the thickest
cable possible.
Remedy1-1
If taking Remedy 1 worsens noise interference, taking Remedy 2 may alleviate it.
• Remedy 2 (Refer to the figures Remedy 2-1 and 2-2 below.)
Attach a ferrite core to the cable if noise from the GOT panel has adverse effects on the GOT when Remedy 1 is taken. Wind
the wire around the ferrite core several times (approx. 3 times), if a ferrite core is used. If the wiring method as shown in
Remedy 2-1 is not feasible, follow Remedy 2-2.
Connection cable
Ground cable from
the panel that houses
control equipment
Use the thickest
cable possible.
Remedy2-1
FG
Panel
grounding
FG
Ferrite core
Panel
grounding
Connection cable
Ground cable from
the panel that houses
control equipment
Use the thickest
cable possible.
Remedy1-2
Connection cable
Ground cable from
the panel that houses
control equipment
Ferrite core
Use the thickest
cable possible.
Remedy2-2
FG
Panel
grounding
FG
Panel
grounding
19 WIRING
173
19.1 Power Supply Wiring
19