Wiring-Related Malfunction Causes And The Measures Examples - Mitsubishi Electric GOT1000 General Description Manual

6.4.2 Wiring-related malfunction causes and the measures
examples
The malfunction causes in grounding the GOT include potential
difference caused by groundings and noise.
Potential difference and noise may be reduced by taking the following
measures.
Wiring of GOT's ground cable and power line
When the ground cable and power line of the GOT are installed
together, the GOT may malfunction due to noise.
Separating the ground cable and power line of the GOT in wiring
reduces the influence of noise.
GOT
LG
FG
Power for the power
equipment
Good example: The ground and power cables
are separated in wiring.
Leading of the ground cable from the panel having a control
equipment in the panel having the GOT
When a single ground cable is led from the panel having a control
equipment such as PLC in the panel having the GOT, the cable
may need to be directly connected to the terminal block of the
GOT.
Ground cable led from the panel
having the control equipment
GOT
FG
LG
Power for the power
equipment
Bad example:
The ground and power cables are
installed together.
Connection
cable
GOT
FG
LG
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