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6.1 When FX
-20PSU is connected to 24V DC power type PLC
2N
Source inputs (-ve S/S)
85 to 264V AC
Class 3
grounding
L
FX
-20PSU
2N
24+ 24-
Sink inputs (+ve S/S)
85 to 264V AC
Class 3
grounding
L
FX
-20PSU
2N
24+ 24-
6.2 When FX
-20PSU is used together with 24V DC service power supply built in PLC
2N
In the AC power type FX PLC, a 24V DC service power supply is built.
When using the FX
2N
FX
-20PSU and the "COM" terminal on the minus side of the service power supply as shown in the fig-
2N
ure below.
Source inputs (-ve S/S)
85 to 264V AC
Class 3
grounding
L
FX
-20PSU
2N
24+ 24-
Sink inputs (+ve S/S)
85 to 264V AC
Class 3
grounding
L
FX
-20PSU
2N
24+ 24-
N
24V 0V
PLC
N
24V 0V
PLC
-20PSU and the service power supply together, connect the "24-" terminal of the
N
L
PLC
Service
power supply
Connect the minus line to share it.
N
L
PLC
Service
power supply
Connect the minus line to share it.
X1
S/S
X1
S/S
N
24V 0V
S/S
24V
N
24V 0V
S/S
24V
Sensor 1 Sensor 2
X2
X5
Sensor 1 Sensor 2
X2
X5
Sensor 1 Sensor 2
X1
X2
X5
Sensor 1 Sensor 2
X1
X2
X7
X7
X7
X5
X7
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