Mitsubishi GT16 User Manual page 117

The malfunction occurred by the potential difference caused by the groundings in such a case, may be prevented by
reducing the voltage with the following measure example 1, where the voltage is reduced.
Measure example 1 (Refer to the measure examples 1-1 and 1-2 below.)
When any potential difference occurs between the ground cable and the panel having the GOT and the GOT is
influenced by the potential difference, connect another ground cable to the panel.
When taking of measure 1-1 is difficult since the wiring cannot be done for example, perform the wiring as shown in
1-2.
Connection
cable
Ground cable
Use a short
Ground to
and thick
the panel.
wire as
possible.
Measure example 1-1
If the GOT is affected by noise when measure example 1 is taken, the influence of noise may be reduced with the
following measure example 2.
Measure example 2 (Refer to the measure examples 2-1 and 2-2 below.)
When the noise generated from the panel affects the GOT even if measure example 1 is taken, attach the ferrite core
(KITAGAWA INDUSTRIES CO.,LTD. RFC-H13 or equivalent product).
When attaching a ferrite core, insert the wire into the hole of the ferrite core several times (approximately three
times).
When taking of measure 2-1 is difficult since the wiring cannot be done for example, perform the wiring as shown in
2-2.
Connection
cable
Ground cable
Ground to
Use a short
the panel.
and thick
wire as
possible.
Measure example 2-1
GOT
FG
LG
GOT
FG
LG
Ferrite core
Connection
cable
GOT
FG
Ground cable
LG
Ground to
the panel.
Measure example 1-2
Connection
cable
GOT
FG
Ground cable LG
Ferrite core
Ground to
the panel.
Measure example 2-2
7.3 Grounding
1
2
3
4
5
6
7
8
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