Mitsubishi MELSEC-A A1SCPUC24-R2, User Manual

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4.3.4 Wiring to module terminals
This section explains the wiring of power lines and grounding lines to
the main and extension bases.
POINT
(1) Use the thickest possible (max. 2 mm
2
(14 AWG)) wires for the 100/200 VAC and 24
VDC power cables. Be sure to twist these wires starting at the connection terminals. For
wiring a terminal block, be sure to use a solderless terminal. To prevent short-circuit due
to loosening screws, use the solderless terminals with insulation sleeves of 0.8 mm
(0.03 inch) or less thick. The number of the solderless terminals to be connected for one
terminal block are limited to 2.
(2) Be sure to ground the LG and FG terminals. Failure to do so may cause the
programmable controller to be susceptible to noise. Note that LG terminals include the
potential as half as that of input voltage; you might get an electric shock when you touch
them.
(3) A1S61PN and A1S62PN do not need to be switched as the are 100 to 240VAC wide-
range.
100-240VAC
internally. 24VDC
that requires module
terminals of an I/O
Connect to the 24VDC
(LG)
(FG)
100-240VAC
INPUT
24G
+24V
(LG)
(FG)
100-240VAC
INPUT
External base unit (A1S68B)
Main base unit (A1S38B)
Fuse
External cable
Ground
Grounding wire
24G
+24V
AC 100/240V
I/O A1S62PN
CPU A1S62PN
DC
AC
24VDC
24VDC
AC 200/220V
AC 100/110V
AC
FG
I/O I/O
INPUT
(LG)
(FG)
NC
NC
CPU A1S61PN
Main base unit (A1S38B)
Ground
Grounding wire
External cable
internally.
that requires 24VDC
terminals of an I/O module
Connect to the 24VDC
DC
AC
24VDC
Fuse
200/220VAC
AC V 00/110 1
AC
External base unit (A1S58B)
with insulation sleeves
Solderless terminals
Terminal block