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3 DESIGN
3.2.1 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,
over current protection) of power supply lines
Separate the lines for Motion controller's power supplies from the lines for I/O
devices and servo amplifiers as shown below.
When there is much noise, connect an insulation transformer.
The Motion controller may malfunction as it is affected by various noises such as
electric path noises from the power supply lines, and electromagnetic noises
from contactors. To avoid such troubles, set the 24VDC power supply according
to application.
100/200/400VAC
Isolation
transformer
Main power
supply
MCCB
Control power supply
for servo amplifier
Main circuit power supply
for servo amplifier
T1
CP
100/200VAC
Motion
controller
CP
CP
CP
MCCB
Servo amplifier
Motor equipment
I/O power supply
Motor power supply
24VDC
power
supply
I/O equipment
Motion
controller
power supply
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