Mitsubishi A2USCPU(S1), User Manual

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8 - 17
LOADING AND INSTALLATION 8.
(b) Use a power supply which generates minimal noise between wires and between
the programmable controller and ground.
If excessive noise is generated, connect an isolating transformer.
(c) When a power supply transformer or isolating transformer is employed to reduce
the voltage from 200VAC to 100VAC, use one with a capacity greater than those
indicated in the following table.
(d) Separate the programmable controller's power supply line from the lines for I/O
equipments and power equipments as shown below.
When there is much noise, connect an isolating transformer.
(e) Taking rated current or inrush current into consideration when wiring the power
supply, be sure to connect a breaker or an external fuse that have proper blown
and detection.
When using a single programmable controller, a 10A breaker or an external fuse
are recommended for wiring protection.
Power Supply
Module
Transformer
Capacity
A1S61PN 110VA n
n: Stands for the number of power supply
modules.
A1S62PN
110VA n
I/O
equipment
Insulation
transformer
Programmable
controller
Insulation
transformer
200VAC
T1
Main
power supply
Relay
terminal block
Programmable
controller
Programmable
controller
power supply
Insulation
Transformer
I/O power supply
I/O equipment
On a control panel
Main circuit
power supply
Main circuit equipment