Wiring To Power Supply Terminals; Examples Of Power Supply Circuit; Cautions Regarding Wiring To The Power Supply Terminals - Mitsubishi Electric MELSEC-FX3S Series Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
FX -4DA (4-channel Analog Output)
3U
3.3

Wiring to Power Supply Terminals

3.3.1

Examples of Power Supply Circuit

Below are examples of circuits for using the 24 V DC service power supply of the FX
1) Sink input [- common] wiring
Class-D
grounding
2) Source input [+ common] wiring
Class-D
grounding
3.3.2

Cautions regarding wiring to the power supply terminals

• Ground the "
with the ground terminal of the main unit.
• For the timing of power-on/off when using an external power supply, see the following manual of the
connected PLC.
PLC User's Manual - Analog Control Edition
AC power
100 to 240 V
L N S/S
FX /FX Series PLC
3G 3U
(main unit)
Connect the "S/S" terminal of the main unit to the "24V" terminal.
AC power
100 to 240 V
L N S/S
FX /FX Series PLC
3G 3U
(main unit)
Connect the "S/S" terminal of the main unit to the "0V" terminal.
" terminal to the Class - D grounding line (100 Ω or less) together
" terminal and "
→ Refer to the FX
→ Refer to the FX
→ Refer to the FX
→ Refer to the FX
0V 24V 24+ 24-
FX -4DA
3U
0V 24V 24+ 24-
FX -4DA
3U
Series User's Manual - Hardware Edition.
3G
Series User's Manual - Hardware Edition.
3GC
Series User's Manual - Hardware Edition.
3U
Series User's Manual - Hardware Edition.
3UC
3 Wiring
3.3 Wiring to Power Supply Terminals
/FX Series PLC.
3G 3U
+15V
-15V
+15V
-15V
E-11
A
B
C
D
E
F
G
H
I
J