Motor restarting controller

Motor restarting controller

  • CN 103,916,053 A
  • Filed: 04/18/2014
  • Published: 07/09/2014
  • Est. Priority Date: 04/18/2014
  • Status: Active Grant
First Claim
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1. motor is restarted a controller, it is characterized in that, back-up source unit when described controller comprises for civil power transient voltage or decompression, described controller being powered;

  • And the logic relay unit being connected with described back-up source unit respectively, the time relay unit of controlling for the default time limit and for the output relay of output contact is provided, wherein;

    Described logic relay unit, its pair of power source terminals is connected with live wire and zero line respectively, detect the instantaneous depression amplitude of supply voltage, its pair of input terminals often drives auxiliary contact with contactor or frequency converter run signal contact is connected, and detects the state of contactor or frequency converter;

    When detecting that auxiliary contact often left by contactor or frequency converter run signal contact disconnects moment, control the instantaneous closure of output contact of output relay;

    If reaching default amplitude and occur in contactor, the instantaneous depression amplitude of supply voltage often opens before auxiliary contact or frequency converter run signal contact disconnect, within the default permission decompression time limit, control the disconnection of back-up source switch of output relay or closure controls output contact manner of execution and is by time relay unit;

    allowing in the decompression time limit, instantaneous closure, time delay disconnects.

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