Motor control apparatus having a function of detecting miswiring
AssigneeFanuc Corporation
InventorsShunsuke Iwanami, Akira Yamaguchi
Life of this patent
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Abstract
A motor control apparatus according to one aspect of the present invention is configured to be connected to a motor by a wiring line, and includes: a motor driving unit for driving a motor; a current command unit for commanding supply of current to the motor driving unit; and, a miswiring detecting unit for detecting miswiring of lines connected to motors by acquiring via wiring lines a signal indicating the motor temperature detected by a motor temperature detector provided for the motor, wherein the miswiring detecting unit detects presence or absence of miswiring of the wiring lines, based on the change of the motor temperature when the current command unit commands supply of reactive current to the motor driving unit.
Claims6
A motor control apparatus configured to be connected to a motor by a wiring line, comprising:
- a motor driving unit for driving a motor;
- a current command unit for commanding supply of current to the motor driving unit;
- and,
- a miswiring detecting unit for detecting miswiring of lines connected to motors by acquiring via wiring lines a signal indicating the motor temperature detected by a motor temperature detector provided for the motor,
- wherein the miswiring detecting unit detects the presence or absence of miswiring of the wiring lines, based on the change of the motor temperature when the current command unit commands supply of reactive current to the motor driving unit.
A motor control apparatus configured to be connected to n (n≧2) motors via wiring lines, comprising:
- n motor driving units for driving respective n motors;
- n current command units for commanding supply of current to n motor driving units;
- and,
- miswiring detecting units that respectively acquire motor temperature-indicating signals detected by n motor temperature detectors provided for each motor through wiring lines to detect miswiring of the wiring lines connected to the n motors,
- wherein when the m-th (m≦n) current command unit gives a command of supplying reactive current to the m-th motor driving unit, the miswiring detecting units detect presence or absence of miswiring based on the change of the motor temperature of the m-th motor.
Dependencies are inferred from the claim text.