Chapter 9 Installation and Wiring
9-
８
9.2 Wiring
The followings explains the wiring instructions for use of the system.
9.2.1 Power Supply Wiring
1)Use AC 100
～
240V (50Hz
～
60Hz) as the main power.
2)When voltage fluctuations are larger than the specified value, connect a constant-voltage transformer
.
Use a power supply which generates minimal noise across wire and MK80S and ground when excessive noise
Generated, connect an insulating transformer.
3)Use a power supply which generates minimal noise across wire and across PLC and ground. (When excessive noise
is
generated, connect an insulating transformer)
4)
When wiring, separate the PLC power supply from those for I/O and power device as shown below.
※
T1,T2 : rated voltage transformer
AC100-240V
FG
MK80S base unit
Constant-voltage transformer
T1
T2
PLC
Main power
AC100
～
240V
PLC power
I/O power
Main circuit
Main circuit device
I/O device
