Title:
モータ駆動装置および故障検出方法
Document Type and Number:
Japanese Patent JP6626134
Kind Code:
B2
Abstract:
A motor driving device controls braking of multiple motors each having a braking device by using a single brake power supply. The braking device includes: an electromagnetic brake that releases braking of a rotary shaft of the motor by energizing a brake coil; a conductive disk configured to rotate together with the rotary shaft and connected in series with the brake coil; and a plurality of resistors provided on a surface of the disk so as to be periodically connected in series with the brake coil as the disk rotates. The motor driving device identifies a failed braking device of the braking devices, based on the current value of the current flowing from the brake power supply and the rotational positions of the rotary shafts of the multiple motors.
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Inventors:
Saito total
Kagawa power
Kagawa power
Application Number:
JP2018003153A
Publication Date:
December 25, 2019
Filing Date:
January 12, 2018
Export Citation:
Assignee:
FANUC Corporation
International Classes:
H02P5/46; F16D55/28; F16D65/18; H02K11/27; G01R31/50
Domestic Patent References:
| JP8182365A | ||||
| JP2005126183A | ||||
| JP2008168981A | ||||
| JP2000193412A |
Foreign References:
| WO2017169408A1 |
Attorney, Agent or Firm:
Takehiro Chiba
Toshiyuki Miyadera
Takayuki Chima
Shuji Ouchi
Yasuharu Nakasone
Shiro Sakai
Toru Sekiguchi
Toshiyuki Miyadera
Takayuki Chima
Shuji Ouchi
Yasuharu Nakasone
Shiro Sakai
Toru Sekiguchi