Title:
DYNAMIC BRAKE EQUIPMENT FOR MOTORS
Document Type and Number:
Japanese Patent JP2008182821
Kind Code:
A
Abstract:
To avoid destruction of a power element arising from the passage of an excessive dynamic brake current, degaussing of a motor magnet, mechanical damage due to excessive torque impact, and the like, without unnecessarily lengthening the stopping time of the dynamic brake.
Dynamic brake equipment is used to bring a motor 203 to an emergency stop. For a predetermined time after the operation of the dynamic brake is started, control is carried out so as to weaken a dynamic brake current. After the predetermined time has passed, control is made so as to pass a dynamic brake current to be passed under normal circumstances.
Inventors:
TAKAZOE SHUICHI
SASAKI MICHIYO
SASAKI MICHIYO
Application Number:
JP2007014216A
Publication Date:
August 07, 2008
Filing Date:
January 24, 2007
Export Citation:
Assignee:
JUKI KK
International Classes:
H02P3/22
Domestic Patent References:
JP2004248491A | 2004-09-02 | |||
JP2005176454A | 2005-06-30 | |||
JP2000163847A | 2000-06-16 | |||
JP2004248491A | 2004-09-02 | |||
JP2005176454A | 2005-06-30 | |||
JPH08149870A | 1996-06-07 |
Attorney, Agent or Firm:
Satoshi Takaya
Keisuke Matsuyama
Tsuyoshi Makino
Keisuke Matsuyama
Tsuyoshi Makino