Example Of External Wiring - Mitsubishi FX3U-?*MR/ES 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.
WIRING PRECAUTIONS
• Do not wire vacant terminals externally.
Doing so may damage the product.
MC
12.2 External Wiring for Relay Output
Fuse*
COM1
Y0
Y3
Load
(Vacant terminal)
Fuse*
COM2
Y4
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
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)
12 Output Wiring Procedures
Main unit
relay output
relay output
extension unit
relay output
relay output
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