Chapter 2 Hardware Specifications and W iring 2. Wiring differential output terminals Take AH10PM-5A for instance. The wiring of the differential output terminals on AH10PM-5A is described below. Wiring differential output terminals on AH10PM-5A, and an ASDA-A/ASDA-A+/ASDA-A2 series AC servo drive Driver FP Y0.0+ /PLS 43 Y0.0- PLS 41 Optocoupler circuit RP Y0.1+ /SIGN 36 FG0 Y0.1- SIGN 37 Optocoupler circuit 2-27 The output terminals of a transistor module are open-collector output terminals.
If Y0.8 is a pulse train output terminal of a transistor module, the output current passing through its output pull-up resistor must be greater than 0.1 A to ensure that the transistor module operates normally. A relay or a solenoid valve is used as a DC load. A diode is connected in parallel to absorb the surge voltage which occurs when the load is OFF. 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. Y0.9 can not be connected to a power supply directly. It must be connected to a load. Mutually exclusive output:
For example, Y0.10 controls the clockwise rotation of the motor, and Y0.11 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.