Troubleshooting - Mitsubishi Electric GT16 User Manual

(6) Grounding status of the panel on which the GOT is installed
Connection
cable
Current status
Ground cable led from the
panel having the control
equipment
Fig.
A
Fig.
B
Measure for the
ground cable
led
Fig.
C
Fig.
D
19 - 8

19. TROUBLESHOOTING

19.1 GOT Restoration Sheet
Connector
conversion box
FG
Connector
conversion box
Connection cable
Ground cable led from
the panel having the
control equipment
FG
Use a short and
thick wire as
possible.
Ground to
the panel.
Connector
conversion box
Connection
cable
Ground cable led from
the panel having the
control equipment
FG
Use a short and
thick wire as
Ground to
possible.
the panel.
Connector
conversion box
Connection cable
Ground cable led from
the panel having the FG
control equipment
Ferrite core
Use a short and
thick wire as
possible.
Ground to
the panel.
Connector
conversion box
Connection cable
Ground cable led from
the panel having the
FG
control equipment
Ferrite
core
Use a short and
thick wire as
possible.
Ground to
the panel.
GOT
A single ground cable is led from the
panel having the control equipment such
as PLC to the panel having the GOT.
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.
GOT
B.
GOT
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.
GOT
Led
Not led
Effective
Ineffective
Effective
Ineffective