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B-15
3 Wiring
3.3 Examples of Power Supply Circuit
A
Common Items
B
FX
3U
-4AD
FX
3UC
-4AD
C
FX
3U
-4AD-ADP
D
FX
3G
-2AD-BD
E
FX
3U
-4DA
F
FX
3U
-4DA-ADP
G
FX
3G
-1DA-BD
H
FX
3U
-3A-ADP
I
FX
3U
-4AD-PT
-ADP
J
FX
3U
-4AD-PTW
-ADP
FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Analog Control Edition
FX3U-4AD/FX3UC-4AD (4-channel Analog Input)
3.3.2 FX3UC-4AD
*1. The FX3UC-MT/D and FX3UC-32MT-LT(-2) are supplied together with power cable.
*2. The FX
2NC-EX-DS and FX2NC-16EX-T-DS do not have a power connector, and receive power
from the input connector.
3.3.3 Cautions regarding connection of power cables
• Ground the " " terminal and " " terminal to the Class - D grounding line (100 Ω or less) together
with the ground terminal of the main unit.
• To perform crossover wiring to connect the power line from FX
3UC-4AD to a succeeding extension block,
remove the resin cover from the power crossover connector using nippers.
• For the timing of power-on/off when using an external power supply, see the following manual of the
connected PLC.
→ Refer to the FX
3G Series User’s Manual - Hardware Edition.
→ Refer to the FX
3U Series User’s Manual - Hardware Edition.
→ Refer to the FX
3UC Series User’s Manual - Hardware Edition.
24V DC
Class-D
grounding
GreenRedBlack
FX
3UC
Series PLC
(Main unit)
Power connector
24+24-
FX
2NC
-10BPCB1
Power crossover cable
FX
2NC
-100BPCB
Power cable
*1
FX
2NC
Series PLC
(Input extension block
*2
)
Red
Black
24+24- 24+24-
Power
crossover
connector
Power
connector
Terminal block
Power
connector
+15V
24+24- 24+24-
-15V
FX
3UC
-4AD
Power
crossover
connector
+15V
24+24- 24+24-
-15V
FX
3UC
-4AD
Black Red Black Red
Black Red
Black
Red
Power
connector
FX
2NC
-10BPCB1
Power crossover cable
Terminal block
Power
crossover
connector