Mitsubishi Electric GOT SIMPLE GS2107-WTBD, Руководство пользователя

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22 - 8
22.1 GOT Restoration Sheets
(6) Grounding status of the control panel where the GOT is installed
Actual
status
A ground cable is led from the
control panel where control
equipment such as a PLC is
installed to the control panel
where the GOT is installed.
True
False
Corrective
action for
when it is
true
Figure
A
Connecting a ground cable to
the panel where the GOT in
installed as shown in Figure A
reduces electric potential
difference between the ground
points, which may avoid
malfunction of the GOT.
If the wiring shown in Figure A
cannot be carried out, perform
the wiring as shown in Figure B.
Effective
Ineffective
Figure
B
Figure
C
Attaching a ferrite core to the
ground cable connected to the
control panel where the GOT is
installed, as shown in Figure C,
will help minimize noise
interference.
If the wiring shown in Figure C
cannot be carried out, perform
the wiring as shown in Figure D.
Effective
Ineffective
Figure
D
Connection
cable
GOT
FG
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
Connection
cable
GOT
Ground to
the panel.
Ground cable
FG
Connection
cable
GOT
Ground to
the panel.
Ferrite core
Ground cable
FG
Connection
cable
Use a short and
thick wire as
possible.
GOT
Ground to
the panel.
Ground cable
FG
Connection
cable
Ferrite core