Connecting The Power Supply - Pro-face GP-2401T User Manual

Chapter 3 - Installation and Wiring

3.2.2 Connecting the Power Supply

M a i n
Power
power
3-8
Twisted Lines
voltage
transformer
Twisted Lines
noise
reducing
transformer
GP
power
GP unit
input/out-
put unit
GP
M a i n
power
Power
input/output
main circuit
Motor
• If the supplied voltage exceeds the
GP unit's range, connect a voltage
GP unit
transformer.
cations for the allowable voltage
range.
GP unit • 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 Re-
ducing transformers with
capacities exceeding 100VA.
• When supplying power to the GP
unit, please separate the input/
output and operation unit lines, as
shown.
GP unit
• To increase the noise resistance
quality of the power cable, simply
twist each power wire before
Input/ Out-
attaching the Ring Terminal.
put Power
• The power supply cable must not
Input/ Out-
be bundled or positioned close to
put Power
main circuit lines (high voltage,
high current), or input/output
Operation
signal lines.
Unit
GP unit
• Connect a lightning surge ab-
sorber, as shown in the diagram,
to deal with power surges.
lightening
• To avoid excess noise, make the
surge
power cable as short as possible.
absorber
• Be sure to ground the surge
absorber (E1) separately
from the GP unit (E2).
• Select a surge absorber that
has a maximum circuit volt-
age greater than that of the
peak voltage of the power
supply.
GP-2401/2501/2601 Series User Manual
Chapter 2 Specifi-