Title:
ELEVATOR CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2015000776
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an elevator control device capable of determining whether or not a control power supply for operating control means of an inverter is failed.SOLUTION: The elevator control device includes: first voltage detection means 13 for detecting a voltage value of a smoothing capacitor 8 which smooths DC power to be output from a converter 5 which converts AC power into the DC power; a gate drive circuit 12 which performs switching control of a power semiconductor device of an inverter 7 which converts the smoothed DC power into the AC power; a gate power supply 11 which supplies the DC power to the gate drive circuit 12; second voltage detection means 14 for detecting an output voltage value of the gate power supply 11; and failure determination means 18 for determining whether or not the gate power supply 11 is failed based on a voltage value detected by the second voltage detection means 14 after the voltage value detected by the first voltage detection means 13 becomes equal to or less than a first preset voltage value.
Inventors:
OTSU KAZUHIRO
Application Number:
JP2013124884A
Publication Date:
January 05, 2015
Filing Date:
June 13, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
B66B1/34; B66B5/00
Attorney, Agent or Firm:
Takada 守
Hideki Takahashi
Jiro Ozawa
Hideki Takahashi
Jiro Ozawa
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