Wiring Method; Connection Method Of External Power Supply - Mitsubishi Electric Melsec iQ-R Series User Manual

6.2

Wiring Method

Connection method of external power supply

The external power supply is used for operating a sensor head.
Wiring
• For connecting the external power supply of the control module, use the +24V terminal and the 24G terminal of the external
power supply terminal block, and supply 24VDC.
• To reduce the effects of noise, perform twist processing (stranded wire processing) for the power cable.
For the wiring of the external power supply, refer to the following connection diagram.
+24V
24G
FG
Terminal block
The terminal block can be removed from the control module. Use the terminal block and the tightening tool that satisfy the
following conditions:
• Terminal block
The terminal block socket is manufactured by Mitsubishi Electric. For details on the terminal block socket, please consult your
local representative.
• Tightening tool
Flathead screwdriver
Blade width: 0.6mm  3.5mm
Removal and installation of terminal block
■Removal
To remove a terminal block, loosen terminal block mounting screws using a flathead screwdriver, and pull out the terminal
block.
■Installation
To install the terminal block, insert a terminal block to a connector, and secure the terminal block by attaching a terminal block
mounting screws using a flathead screwdriver.
Insufficient fixing may cause drop, short-circuit, or malfunction of the module.
Signal name of terminal block
The following shows the signal names of the terminal block.
(1) (4)
+24V
(2) (5)
24G
(3) (6)
No. Signal name
(1) +24V
(2) 24G
(3)
(FG)
(4) +24V
(5) 24G
(6)
(FG)
6 INSTALLATION AND WIRING
32
6.2 Wiring Method
Tightening torque range
0.2 to 0.3Nm
Function
24VDC (input) for power supply
Ground for power supply
Functional ground
24VDC (output) for power supply
Ground for power supply
Functional ground (use prohibited)