Mitsubishi Electric GT16 User Manual page 116

• 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.
Panel grounding
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.
Panel grounding
9 - 6
9. HANDLING OF POWER WIRING AND SWITCH
9.2 Power Wiring
Connector
conversion box
FG
Remedy1-1
Connector
conversion box
FG
Ferrite core
Connector
conversion box
Connection cable
Ground cable from
the panel that houses
control equipment
Use the thickest
cable possible.
Panel grounding
Remedy1-2
Connector
conversion box
Connection cable
Ground cable from
the panel that houses
control equipment
Use the thickest
cable possible.
Panel grounding
FG
FG
Ferrite
core