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6 WIRING
6.4 Power Supply Wiring
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6
6.4 Power Supply Wiring
Examples of AC power supply wiring
Power supply example for sink input [-common]
*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 powered input/output module 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 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.
*4 Do not connect the [24V] terminals (24 V DC service power supply) of the CPU module and the powered input/output module with each
other. Connect the [0V] terminal.
AC power supply (100 to 240 V)
S/S
L
N
0V
Expansion adapter
PL
Power ON
MC
MC
MC MC
24V
CPU module
Input module
S/S
Class D grounding
DC AC
*1
*2
*4
*4
5 V 0 V 24 V
Breaker
24-
24+
*3
FX5
intelligent module
24-
24+
*3
24 V DC
service power
supply output
24 V DC
service power
supply output
FX3
intelligent module
Emergency
stop
Power supply for loads
connected to PLC output
terminals
As for emergency stop
operation, see "DESIGN
PRECAUTIONS" at
"Safety Precautions" field.
DC power
supply
Bus conversion
module
5 V 0 V 24 V
S/S
L
N
0V
24V
Powered
input/output module
*1
5 V 0 V 24 V
5 V 0 V 24 V
5 V 0 V 24 V
5 V 0 V 24 V
5 V 0 V 24 V