Power Supply Wiring - Mitsubishi Electric MELSEC iQ-F FX5 User Manual

Power supply wiring

The following figures show wiring of the power supply.
To connect to the FX5U CPU module
[When an external power supply is used]
FX5-4DA-ADP
CPU module
24+ 24-
Fuse
24 V DC
Precautions
• Ground the "ground" terminal to a class-D grounded power supply line (100  or less) together with the grounding terminal
of the CPU module.
• When using an external power supply, turn on the power supply at the same time as the CPU module or earlier than the
CPU module. When turning off the power, confirm the safety of the system and turn off the power of the PLC (including
expansion adapters) at the same time.
To connect to the FX5UC CPU module
FX5UC
FX5-4DA-ADP
CPU module
Black
24+ 24- 24+
Red
Fuse
24 V DC
Precautions
• Ground the "ground" terminal to a class-D grounded power supply line (100  or less) together with the grounding terminal
of the CPU module.
• For the 24 V DC power supply, be sure to use the same power as the CPU module.
[When a service power supply is used]
FX5-4DA-ADP
FX5U
Grounding
(Ground resistance:
100 Ω or less)
24-
Green
Grounding
(Ground resistance:
100 Ω or less)
FX5U
CPU module
24V 0V
24+ 24-
Grounding
(Ground resistance:
100 Ω or less)
3
3 FX5-4DA-ADP
119
3.5 Wiring