Mitsubishi Electric FX Series - Wiring; Power Supply

2.7 Wiring
2.7.1 Power Supply
Power Supply Specifications
Grounding
The PLC should be grounded.
쎲 The grounding resistance should be 100 액 or less.
쎲 The grounding point should be close to the PLC. Keep the grounding wires as short as
possible.
쎲
Independent grounding should be performed for best results. When independent ground
-
ing is not performed, perform "shared grounding" of the following figure.
쎲
The ground wire size should be at least 2 mm
2
.
The Hardware Wiring
Training Manual GX IEC Developer 2 - 13
Specification Units for DC Power Supply Units for AC Power Supply
Rated voltage 12 to 24 V DC 24 V DC 100 to 240 V AC
Voltage range 10.2 to 26.4 V DC 20.4 to 26.4 V DC 85 to 264 V AC
Allowable momentary
power failure time
5 ms 20 ms
24 V DC
FX base unit
+
–
Connection of units with DC power supply
L
N
100 to 240 V AC
50/60 Hz
FX base unit
Connection of units with AC power supply
PLC
Another
equipment
PLC
Another
equipment
PLC
Another
equipment
Shared grounding
Good condition
Common grounding
Not allowed
Independent grounding
Best condition