User guide

 DC24 V Interface

y To avoid an electric shock, prior to connecting the GP unit’s power cord terminals to

the power terminal block, confirm that the GP unit’s power supply is completely

turned OFF, via a breaker, or similar unit.

y Supplying a power voltage other than that specified will damage the power source

and the GP unit.

y Since there is no power switch on the GP unit, be sure to attach a breaker switch to

the power cord.

y When the FG terminal is connected, be sure the wire is grounded.

• Be sure to twist Power Input wires from a part close to the power supply.

• It's recommended to use the provided common mode filter on the direct-connect cable to

reduce noise.

 Power Supply Cautions

• Input and Output signal lines must be separated from the power control cables for operational

circuits.

• To improve the noise resistance, be sure to twist the ends of the power cord wires before

connecting them to the power supply.

• The GP unit’s power supply cord should not be bundled with or kept close to main circuit

lines (high voltage, high current), or input/output signal lines.

• To reduce noise, make the power cord as short as possible.

• If the supplied voltage exceeds the GP unit’s range, connect a voltage transformer.

• Between the line and the ground, be sure to use a low noise power supply. If there is an excess

amount of noise, connect a noise reducing transformer.

• The temperature rating of field installed conductors: 60°C only.

• DC 24V input unit must be used with a Class 2 power supply.

Cable Color Signal Name Direction Description

Red DC24 V Input Power Input DC24 V

Black 0 V Input Power Input 0 V

Green FG

*1 Select AWG16 cable to use out of two green cables.

⎯

Frame Ground (Common with SG)

External

power supply

24 VDC

Common

field filter

0 V

24 VDC

0 V

FGFG

■ The black square indicates the connection point

for the dedicated cable and common field filter.