Connecting To The Power Supply Module - Mitsubishi Electric Melsec-Q172DCPU User Manual

4 INSTALLATION AND WIRING

4.5.2 Connecting to the power supply module

The following diagram shows the wiring example of power lines, grounding lines, etc.
to the main and extension base units.
100/200VAC
AC
Fuse
AC
DC
24VDC
Connect to the 24VDC
terminals of an I/O
module that requires
24VDC internally.
100VAC
(Note-1): The operation of the ERR. terminal is as follows.
<When the power supply module is installed on the main base unit>
The terminal turns OFF (opens) when the AC power is not input, a CPU module stop error
(including a reset) occurs, or the fuse of the power supply module is blown.
<When the power supply module is installed on the extension base unit>
The terminal is always OFF(open).
Main base unit
Q61P
Ground
wire
Grounding
Extension base unit
Extension cable
Q61P
Ground
wire
Grounding
4 - 27
(Q38DB)
CPU module
(Note-1)
ERR.
FG
LG
INPUT
100-240VAC
(Q68B)
I/O module
ERR.
FG
LG
INPUT
100-240VAC
(Note-1)