Mitsubishi Electric MELSEC iQ-F Series, User Manual

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6 WIRING
6.4 Power Supply Wiring
Wiring example for an FX5-1PSU-5V (sink input [-common])
The following example shows wiring for an FX5-1PSU-5V when sink input [-common] is used.
*1 Connect the AC power supply to the [L] and [N] terminals (common for 100 V AC system and 200 V AC system). Make sure that the
power of the FX5-1PSU-5V is turned on at the same time as the CPU module or earlier than the CPU module.
*2 Connect the [24V] terminal of the CPU module to the [S/S] terminal of the input module.
*3 Some expansion adapters and intelligent function modules may not have power supply terminals.
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 extension devices) at the same
time.
X
S/S
AC power supply (100 to 240 V)
S/S
L
N
0V
PL
Power ON
MC
MC
MC MC
24V
FX5UJ-40MT/ES
FX5-8EX/ES
S/S
Class D grounding
(grounding resistance: 100

or less)
DC AC
*1
*2
Breaker
-
+
*3
FX5-20PG-P
L
N
*1
*3
FX5-1PSU-5V
FX5-8AD
FX5-8EX/ES
FX5-8EYT/ES
-
+
Wiring precaution:
24 V DC service
power supply output
Emergency
stop
Power supply for loads connected
to PLC output terminals
As for emergency stop operation,
see "DESIGN PRECAUTIONS" at
"Safety Precautions" field.
Run grounding and power cables from the
top as shown in the following figure.
DC power
supply
Grounding and
power cables
5 V 0 V 24 V
5 V 0 V 24 V
5 V 0 V 24 V
5 V 0 V 24 V
-
+
*3
FX5-4DA-ADP
5 V 0 V 24 V
5 V 0 V 24 V
5 V 0 V 24 V
5 V 0 V 24 V
S/S
*2
When external power supply is
supplied to the input circuit