Panel Inside Wiring, Panel Outside Wiring - Mitsubishi Electric GT1695M-XTBD User Manual

6.4 Panel Inside Wiring, Panel Outside Wiring

6.4.1 Panel inside wiring
In wiring, the power line connected to the power or servo amplifier and the communication cable such as bus
connection cable or network cable must not be mixed.
Mixing the power line and communication cable may cause malfunction due to noise.
When using an equipment that may occur surge noise, such as molded case circuit breaker (MCCB),
electromagnetic contactor (MC), relay (RA), solenoid valve, or induction motor, using a surge suppressor is
effective.
For surge suppressor, refer to the following.
Separated power lines and communication cables
6.4.2 Panel outside wiring
When leading the power line and communication cable outside the panel, open cable holes at two separate
places to lead the cables separately out.
If cables are led out through the same cable hole for wiring reasons, the cables are more easily influenced
by noise.
Communication
cable
Install the power line and communication cable as apart from each other as possible in the duct.
If the cables are installed closely with each other for wiring reasons, using a separator (made of metal) can
make the cables less influenced by noise.
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6.4 Panel Inside Wiring, Panel Outside Wiring
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6.4.1 Panel inside wiring
6.5 Attaching Surge Suppressor for Control Equipment
Power cable Control panel inside
GOT
connection
cable
NFB
PLC's I/O wire
MC RA RA
MC
Drive control
wire
Terminal block
Power line
Wiring for leading the power line and communication cable out from the panel
Power line
100mm or more
Signal line
Wiring of power lines and communication cables in the duct
Mixed power lines and communication cables
Power cable
NFB
MC
Power line
Cable hole
Separator
Wiring duct
Power line
Control panel inside
GOT
connection
cable
PLC's I/O wire
MC RA RA
Drive control
wire
Terminal block
Communication
cable
Communication cable