Delta AH500 series Hardware Manual page 139

Relay/Solenoid valve through which the direct current passes: A diode is connected in
parallel to absorb the surge voltage which occurs when the load is OFF.
⑤
Electromagnetic contactor through which the alternating current passes: A resistor and a
capacitor are connected in parallel to absorb the surge voltage which occurs when the load is
OFF.
⑥
Bulb (incandescent lamp) through which the direct current passes: A thermistor is connected
in series to absorb the surge current which occurs when the load is ON.
⑦
Bulb (neon lamp) through which the alternating current passes: A thermistor is connected in
series to absorb the surge current which occurs when the load is ON.
Mutually exclusive output: Y0.4 controls the clockwise rotation of the motor, and Y0.5
controls the counterclockwise rotation of the motor. The interlock circuit which is formed, and
○ 8
the program in the PLC ensure that there are protective measures if an abnormal condition
occurs.
5 - 2 6
V DC power supply
Electromagnetic contactor
V DC power supply
C h a p t e r 5 OOWiring