Example Of External Wiring - Mitsubishi FX3U SERIES User Manual

FX Series Programmable Controllers
3U
User's Manual - Hardware Edition

12.2.5 Example of external wiring

AC power supply
100 to 240V
Breaker
Power ON
PL
MC
MC
Emergen
cy stop
MC
DC power
supply
Power supply for load
connected to PLC output
For details on emergency stop
operation, refer to "DESIGN
PRECAUTIONS" at "Safety
Precautions" field.
* The output circuit of this PLC does not have a
built-in fuse.
Provide a fuse suitable to each load to
prevent blowout of the wires on the circuit
board caused by output element fracture due
to load short-circuiting.
Cautions in wiring
Do not wire the vacant terminals externally. Doing so may damage the product.
MC
12 Output Wiring Procedures
12.2 External Wiring for Relay Output
Fuse*
COM1
Y0
Y1
Y2
Y3
Load
(Vacant terminal)
Fuse*
COM2
Y4
Y5
Y6
Y7
Load
(Vacant terminal)
Output extension block
Fuse*
COM1
Y0
Y7
Load
(Vacant terminal)
Fuse*
COM2
Y0
Y7
Load
(Vacant terminal)
Input/output powered
Fuse*
COM1
Y0
Y1
Y2
Y3
Load
(Vacant terminal)
Fuse*
COM5
Y0
Y7
Load
(Vacant terminal)
Output extension block
Fuse*
COM1
Y0
Y7
Load
(Vacant terminal)
Fuse*
COM2
Y0
Y7
Load
(Vacant terminal)
11
Main unit
relay output
12
13
14
relay output
15
16
extension unit
relay output
17
18
relay output
19
20
211