After understanding the connection and PLC control program design and parameter settings, you can start system debugging. First, check before commissioning 1. Wiring check to ensure that all cables are connected correctly, should pay special attention to check: (1) The polarity of the freewheeling diode of the relay and solenoid valve. (2) Phase sequence of the motor high-voltage cable. (3) The position control cable, position feedback cable, and motor high-voltage cable of the feeder should correspond one-to-one.
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