Wiring; Power Supply - Mitsubishi Electric FX Series Training Manual

The Hardware

Wiring

2.7
2.7.1

Power Supply

Power Supply Specifications
Specification
Rated voltage
Voltage range
Allowable momentary
power failure time
Connection of units with DC power supply
FX base unit
Grounding
The PLC should be grounded.
b The grounding resistance should be 100
b The grounding point should be close to the PLC. Keep the grounding wires as short as
possible.
b Independent grounding should be performed for best results. When independent ground-
ing is not performed, perform "shared grounding" of the following figure.
PLC
Independent grounding
b The ground wire size should be at least 2 mm
Training Manual GX IEC Developer
12 to 24 V DC
10.2 to 26.4 V DC
+
24 V DC
–
Another
PLC
equipment
Shared grounding
Best condition Good condition
Units for DC Power Supply
24 V DC
20.4 to 26.4 V DC
5 ms
Connection of units with AC power supply
FX base unit
L
N
or less.
Another
PLC
equipment
Common grounding
Not allowed
2
.
Units for AC Power Supply
100 to 240 V AC
85 to 264 V AC
20 ms
100 to 240 V AC
50/60 Hz
Another
equipment
Wiring
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