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故障现象2:启动运转正常,但松开S2或S4即停止工作。故障原因:继电器K2常开接点K2-1未接通,无法自保。故障现象3:机器启动运转正常,但无法自动停机。故障原因:电容C2损坏,无法充电;电路中单结晶
Symptom 2: The start-up operation is normal, but the work is stopped by releasing S2 or S4. Cause of failure: Relay K2 normally open contact K2-1 is not connected and cannot be self-protected. Symptom 3: The machine starts running normally, but it cannot stop automatically. Failure reason: Capacitor C2 is damaged and cannot be charged; single crystal in the circuit