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2. DESIGN
2
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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
CPU module
power supply
I/O
power supply
I/O equipment
100/200VAC
NFB
CPU module
CP
CP
Main
power
supply
CPU module
power supply
I/O
power supply
I/O equipment
100/200VAC
NFB
CPU module
CP
CP
Servo amplifier
power
supply
200VAC
NFB
Servo amplifier