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18. TROUBLESHOOTING
18.1 GOT Restoration Sheet
18 - 5
17
MAINTENANCE AND
INSPECTION
18
TROUBLESHOOTING
APPENDICES
GOT installation status check sheet
Check the current installation status of the GOT you are using against the GOT installation status described in the
upper column of items (1) to (7).
When the measure described in the lower column is needed, take the measure for the current status.
When the measure is taken, check the result, "Effective" or "Ineffective".
(1) Panel inside wiring
(2) Panel outside wiring
Current status
The power line connected to the power or
servo amplifier and the communication
cable are mixed in the duct.
Mixed
Not mixed
Measure for the
cables mixed
Wiring the power line and communication
cable in the panel without mixing them in
the duct can reduce the influence of noise.
Effective
Ineffective
Current status
The power line and communication cable
are installed together.
Installed together
Not installed
together
Measure for
the cables
installed
together
Fig. A
Leading the power line and
communication cable outside the panel
at separate places can make the
communication cable less influenced by
noise from the power line. Installing the
communication cable apart from the
power line or using a separator (made of
metal) in the duct as shown in Fig. B can
make the communication cable less
influenced by noise.
Effective
Ineffective
Fig. B
NFB
MC MC RA RA
NFB
MC MC RA RA
Power line
Communication cable
Communication cable
Power line
Power
line
Wiring
duct
Separator
Power
line
Signal
line
Communication
cable
100mm or more