User`s manual
Chapter 3 - Installation and Wiring
GP-477R/577R Series User's Manual 3-7
GP unit
Twisted Lines
Input/ Out-
put Power
power
input/output
main circuit
Motor
input/out-
put unit
GP unit
noise
reducing
transformer
voltage
transformer
Operation
Unit
Input/ Out-
put Power
When using the GP477R-EG11, GP577R-TC11, 577R-SC11 models, please pay
special attention to the following items.
• If the supplied voltage exceeds the
GP unit's range, connect a voltage
transformer.
Chapter 2, "Speci-
fications", for the allowable
voltage range.
• For between the line and ground,
select a power supply that is low
in noise. If there is an excess
amount of noise, connect a noise
reducing transformer.
Use Voltage and Noise Reducing
transformers with capacities
exceeding 100VA.
• When supplying power to the GP
unit, please separate the input/
output and operation unit lines as
shown in the figure.
• To increase the noise resistance
quality of the power cable, simply
twist each power wire before
attaching the Ring Terminal.
• The power supply cable must not
be bundled or positioned close to
main circuit lines (high voltage,
high current), or input/output
signal lines.
Reference
Twisted Lines
Main
Power
GP
power
GP unit
GP unit
Main
Power
GP
power
3. Connecting the GP's Power Supply
!!
!!
!
Important