Mitsubishi GOT1000 GT15 - Page 530

20 - 10
20.1 GOT Restoration Sheet
(6) Grounding status of the panel on which the GOT is installed
Current
status
A single ground cable is led from
the panel having the control
equipment such as PLC to the
panel having the GOT.
Led
Not led
Measure
for the
ground
cable led
Fig.
A
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.
Effective
Ineffective
Fig.
B
Fig.
C
Attaching the ferrite core
(KITAGAWA INDUSTRIES
CO.,LTD. RFC-H13 or
equivalent product) 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.
Effective
Ineffective
Fig.
D
Connection
cable
GOT
FG
LG
Ground cable led from the
panel having the control
equipment
GOT
Ground to
the panel.
Ground cable
Use a short and
thick wire as
possible.
FG
LG
Connection
cable
GOT
Ground to
the panel.
Ground cable
FG
LG
Connection
cable
GOT
Ground to
the panel.
Ferrite core
Ground cable
FG
LG
Connection
cable
Use a short and
thick wire as
possible.
GOT
Ground to
the panel.
Ground cable
FG
LG
Connection
cable
Ferrite core