Mitsubishi GOT 1000 GT16, User Manual

Page: 173 / 218

10.1 GOT Restoration Sheet
10 - 9
9
M
A
IN
TE
N
A
N
C
E AN
D
IN
SP
ECTIO
N
10
TROU
BLES
H
OOTING
APP
ENDICES
(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