Wiring To The Power Supply Module - Mitsubishi Electric Q173HCPU User Manual

4 INSTALLATION AND WIRING

4.4.2 Wiring to the power supply module

The following diagram shows the wiring example of power lines, grounding lines, etc.
to the CPU and extension base units.
100/110VAC
AC
Fuse
AC
DC
24VDC
Connect to 24VDC terminals
of I/O module that requires
24VDC internally.
Extension cable
100VAC
Ground wire
Grounding
(Note) : The ERR terminal turns ON/OFF as described below.
<When the power supply module is mounted 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 mounted on the extension base unit>
The terminal is always OFF(open).
POINT
(1) Use the thickest possible (up to 2 mm
VDC power cables. Be sure to twist these wires starting at the connection
terminals. To prevent a short circuit should any screws loosen, use solderless
terminals with insulation sleeves.
(2) When the LG terminals and FG terminals are connected, be sure to ground the
wires. Do not connect the LG terminals and FG terminals to anything other than
ground. If LG terminals and FG terminals are connected without grounding the
wires, the Motion controller may be susceptible to noise.
In addition, since the LG terminals have potential of 1/2 input voltage, the
operator may receive an electric shock when touching metal parts.
(3) No system error can be detected by the ERR terminal of an extension base
unit. (ERR terminal is always set off.)
CPU base unit
(Q38B)
Q61P CPU module
Extension base unit
(Q68B)
Q61P I/O module
2
) wires for the 100/200 VAC and 24
4 - 19
(Note)
ERR
FG
LG
INPUT
100-240VAC
(Note)
ERR
FG
LG
INPUT
100-240VAC