Wiring To Module Terminals; Precaution When Connecting The Uninterruptive Power Supply (Ups) - Mitsubishi A1SJH User Manual

8. LOADING AND INSTALLATION
8.7.2

Wiring to module terminals

POINT
(1) Use the thickest possible (max. 2 mm
AWG)) wires for the 100 V/200 V and 24 V DC
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 PLC may be susceptible to noise.
In addition, since the LG terminals have
potential, the operator may receive an electric
shock when touching metal parts.
8.8

Precaution when Connecting the Uninterruptive Power Supply (UPS)

This section explains the wiring of power lines and grounding lines to the main and
extension bases .
AC
Select the transformer
by seeing
Section 8.7.1 (C).
Connect to the 24 V DC terminals of an I/O
module that requires 24 V DC internally.
2
(14
Be sure of the following items when connecting the AnSHCPU system to the
uninterruptive power supply (abbreviated as UPS hereafter) :
Use the online UPS with a voltage distortion of 5% or less or line-interactive UPS.
For standby UPS, select the Mitsubishi FREQUPS-F series UPS (serial No. P or
later) such as FW-F10-03K/0.5K.
Do not use the stand UPS other than above.
100/110 V AC
200/220 V AC
Fuse
AC
DC
24 V DC
5 V DC line
100/110 V AC
200/220 V AC
5 V DC line
Grounding wire
Ground
8 - 16
MELSEC-A
Main base unit (A1S38B)
A1S62PN
CPU
+24 V
24G
(FG)
(LG)
INPUT
100-240 V AC
Extension base unit (A1S58B-S1)
I/O I/O
FG
Extension base unit (A1S68B-S1)
A1S61PN I/O
NC
NC
(FG)
(LG)
INPUT
100-240 V AC