Power Supply Circuit Design - Mitsubishi Electric A173UHCPU User Manual

2. DESIGN

2.3.1 Power Supply Circuit Design

This section describes the protective coordination and noise suppression techniques of
the power supply circuit.
(1) Separation and protective coordination (leakage current protection, overcurrent
protection) of power supply lines
When wiring, separate the lines of CPU module power supplies from those of the
I/O equipment and servo amplifier as shown below.
Main
power
supply
100/200VAC
NFB
Main
power
supply
100/200VAC
NFB
200VAC
CPU module
CPU module
power supply
CP
I/O
power supply
I/O equipment
CP
CPU module
CPU module
power supply
CP
I/O
power supply
I/O equipment
CP
Servo amplifier
power
Servo amplifier
supply
NFB
2 − 10