Mitsubishi FX3UC Series - Page 138

132
FX3UC Series Programmable Controllers
User’s Manual - Hardware Edition
4 Power Supply Specifications and External wiring
4.2 Example External Wiring
4.2 Example External Wiring
1. Example External Wiring
A 24V DC power is supplied to the main unit of the FX3UC PLC.
A dedicated connector is used for the power supply.
→ For wiring, refer to Section 3.9.
• Example of the FX
3UC-MT/D, FX3UC-32MT-LT
FX 3 UC - MT/D
FX
3 UC -32MT-LT
FX 2NC EX,
FX
2NC- 16EX-T
or
FX
2NC /FX 3UC
Special function
block
Extension
power supply unit
FX
3UC -1PS-5V
+
-
+
-
+
-
FX 0N /FX 2N Input
extension block
24+
Class D
grounding
*1
Fuse
MC
PL
Power supply ON
Emergency
stop
24V DC
MC
MC
MC
FX 2NC Output
extension block
Power supply for loads to
be connected to PLC
output terminals
As for the details of emergency stop operation, see "DESIGN
PRECAUTIONS" at "Safety Precautions" field.
Special adaptor
(Alalog)
+
-
24V DC
-
24V DC
+
FX 2NC -CNV-IF
or
FX
3UC -1PS-5V
+
-
*1 The grounding resistance should
be 100
Ω or less.
*2 terminal is only for the FX
2NC
/FX 3UC special function block.
*3 The power supply input is only for the
FX
3UC -1PS-5V.
*4 The same power source for the
main unit, extention power supply
unit and special function unit/block is
preferable.
When using the different power
source from the main unit, turn ON
the perepheral devices' power
simaltaneously, or earlier than the
main unit's. When turning OFF the
power, confirm the safety of the
system, and then turn OFF the
power of the PLC (including special
extension equipment) at the same
time.
*3
*4
+
-
*2
Power
connector
Power
crossover
connector
FX 2NC EX,
FX
2NC -16EX-T
or
FX
2NC/ FX 3UC
Special function
block
+
-
+
-
*2
Circuit Protector
*4
*4
*4
*4
*4