Mitsubishi Electric GOT 1000 User Manual page 90

• 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.
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.
7 - 7 7.1 Power Supply Wiring
7.1.7 The cause of malfunctions related wiring/Remedy
FG
Panel
grounding
Remedy1-1
FG
Ferrite core
Panel
grounding
Remedy2-1
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
Use the thickest
cable possible.
Remedy2-2
FG
Panel
grounding
FG
Ferrite core
Panel
grounding