Mitsubishi Electric GT1695M-XTBD User Manual page 431

(6) Grounding status of the panel on which the GOT is installed
Ground cable led from the
Current
panel having the control
equipment
status
Fig.
A
Ground cable
Use a short and
thick wire as
possible.
Fig.
Ground cable
B
Measure
for the
ground
cable led
Fig.
C
Ground cable
Use a short and
thick wire as
possible.
Fig.
Ground cable
D
Connection
cable
GOT
FG
LG
Connection
cable
GOT
FG
LG
Ground to
the panel.
Connection
cable
GOT
FG
LG
Ground to
the panel.
Connection
cable
GOT
FG
LG
Ferrite core
Ground to
the panel.
Connection
cable
GOT
FG
LG
Ferrite core
Ground to
the panel.
A single ground cable is led from
the panel having the control
equipment such as PLC to the
panel having the GOT.
Connecting the ground cable to
the panel having the GOT as
shown in Fig. A to reduce the
potential difference may prevent
the malfunction.
When wiring as shown in Fig. A
is difficult, perform wiring as
shown in Fig. B.
Attaching the ferrite core to the
ground cable connected to the
panel having the GOT as shown
in Fig. C reduces the influence of
noise.
When wiring as shown in Fig. C
is difficult, perform wiring as
shown in Fig. D.
16.1 GOT Restoration Sheet
9
Led
10
Not led
11
Effective
12
Ineffective
13
14
Effective
Ineffective
15
16
16
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