Mitsubishi Electric FX5U User Manual page 84

Wiring example for an extension power supply module (source input [+common])
The following example shows wiring for an extension power supply module when source input [+common] is used.
Expansion adapter
5 V 0 V 24 V
CPU module
5 V 0 V 24 V
Input module
5 V 0 V 24 V
FX5
intelligent module
5 V 0 V 24 V
Extension power supply module
5 V 0 V 24 V
Input module
5 V 0 V 24 V
FX5
intelligent module
5 V 0 V 24 V
Output module
5 V 0 V 24 V
*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 extension power supply module is turned on at the same time as the CPU module or earlier than the CPU module.
*2 Connect the [0V] 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.
6 WIRING
82
6.4 Power Supply Wiring
*1
L
N
S/S
0V
24V
*2
S/S
*3
24+
24-
*1
L
N
*2
S/S
*3
24+
24-
When external power supply is
supplied to the input circuit
S/S
X
AC power supply (100 to 240 V)
Class D grounding
24 V DC
service
power supply
output
Power supply for loads connected
to PLC output terminals
As for emergency stop operation, see
"DESIGN PRECAUTIONS" at "Safety
Precautions" field.
Wiring precaution:
Run grounding and power cables from the
top as shown in the following figure.
Breaker
Power ON
PL
MC
MC
Emergency
stop
MC MC
DC power
supply
DC AC
Grounding and
power cables