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MACHINE STATE MONITORING DEVICE

  • US 20190332090A1
  • Filed: 04/24/2019
  • Published: 10/31/2019
  • Est. Priority Date: 04/27/2018
  • Status: Active Grant
First Claim
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1. A machine state monitoring device for a motor drive device in a machine tool,wherein the motor drive device includes:

  • a motor;

    a converter and an inverter that adjust a power supply voltage so as to supply power to the motor;

    a detection unit that acquires an input voltage of the motor drive device so as to detect a power failure in the motor drive device; and

    a transmission unit that transmits, based on a result of the detection of the detection unit, a time when the power failure is started, and a time when the power failure is completed, andthe machine state monitoring device includes;

    a reception unit that receives information of the time when the power failure is started and the time when the power failure is completed from the transmission unit of the motor drive device provided in each of a plurality of the machine tools; and

    a storage unit that stores the information.

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