Patent ID: 11894784
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A power conversion device comprising:
a power conversion circuit to convert power input to a power input terminal into AC power to be supplied to a motor, and to output the converted AC power to be supplied to the motor, to a power output terminal to which an electric cable of a power cable used for supplying AC power to the motor is connected;
a ground terminal to which a ground line of the power cable is connected;
an encoder circuit to output encoder information, on a basis of angle information input to an information input terminal and supplied from a signal line of a signal transmission cable;
a control circuit to output a control signal that controls the power conversion circuit on a basis of the encoder information supplied from the encoder circuit;
a shield terminal to which a shield of the signal transmission cable is connected, the shield being electrically connected to the ground line of the power cable on a side of the motor; and
determination circuitry to detect a current input to the shield terminal and flowing through the shield of the signal transmission cable, and to output disconnection detection information for disconnection in the shield of the signal transmission cable.