Hardware manual

AH500 Hardware Manual
5-43
⑤
A bulb (incandescent lamp) is used as a DC load. A thermistor is connected in series to absorb the
surge current which occurs when the load is ON.
NPN transistor output
(
sinking
)
DC power supply
PNP transistor output (sourcing)
DC power supply
⑥
Y0.2 can not be connected to a power supply directly. It must be connected to a load.
ZP
Y0.2
UP
+
NPN transistor output (sinking)
DC power supply
ZP
Y0.2
UP
+
DC power supply
PNP transistor output (sourcing)
⑦
Mutually exclusive output: For example, Y0.3 controls the clockwise rotation of the motor, and Y0.4
controls the counterclockwise rotation of the motor. The interlock circuit which is formed, and the
program in the PLC ensure that there are protective measures if an abnormal condition occurs.