7.3 Grouding
7.3.2 Wiring-related malfunction causes and the measures examples
7 - 9
1
OVERVIEW
2
SYSTEM
CONFIGURATION
3
SPECIFICATIONS
4
PART NAME AND
SETTINGS
5
EMC AND LOW
VOLTAGE
DIRECTIVE
6
INSTALLATION
7
WIRING
8
OPTION
7.3.2 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.
1 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.
2 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.
.
GOT
FGLG
Power for the power equipment
Power for the power equipment
GOT
FGLG
Good example: The ground and power cables
are separated in wiring.
Bad example: The ground and power cables are
installed together.
Connection
cable
Ground cable led from the panel
having the control equipment
GOT
FG
LG
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