Patent ID: 8159792

Claim:
A motor control device, comprising: a DC power supply for feeding power to a plurality of motors; a plurality of electric power converters connected in parallel to the DC power supply, for performing power conversion of the fed power to drive the plurality of motors, respectively; motor driving means for controlling drive/stop of the plurality of electric power converters according to a motor drive command; a first current detection resistor connected between a point to which positive terminal sides of the plurality of electric power converters are connected and the DC power supply; fault detecting means for detecting a short circuit fault based on a voltage of the first current detection resistor; and a second current detection resistor connected between a point to which negative terminal sides of the plurality of electric power converters are connected and the DC power supply, wherein the fault detecting means detects the short circuit fault based on the voltage of the first current detection resistor and a voltage of the second current detection resistor.