Title:
絶縁抵抗検出機能を備えたモータ駆動装置
Document Type and Number:
Japanese Patent JP6407931
Kind Code:
B2
Abstract:
In a motor driver of the present invention, voltage and current values measured by a voltage and current detector and a voltage value measured by a voltage detector are determined as first measurement results, in the state of turning on semiconductor switching elements connected between a positive terminal of a capacitor and motor coils. Voltage and current values measured by the voltage and current detector and a voltage value measured by the voltage detector are determined as second measurement results, in the state of, as to a group A, turning on a semiconductor switching element connected between the positive terminal of the capacitor and the motor coil, and as to a group B, turning on semiconductor switching elements connected between a negative terminal of the capacitor and the motor coil. The insulation resistance values are calculated between the motor coils of each group A or B and a ground.
Inventors:
Hirohiro Sato
Masaya Tateda
Yoichiro Oi
Akira Hirai
Kiichi Inaba
Masaya Tateda
Yoichiro Oi
Akira Hirai
Kiichi Inaba
Application Number:
JP2016190169A
Publication Date:
October 17, 2018
Filing Date:
September 28, 2016
Export Citation:
Assignee:
FANUC Corporation
International Classes:
G01R31/34
Domestic Patent References:
| JP6017481B2 | ||||
| JP4565036B2 | ||||
| JP5065192B2 |
Foreign References:
| US6381110 |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tomohiro Minamiyama
Kenichi Nakamura
Jun Tsuruta
Tomohiro Minamiyama
Kenichi Nakamura