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Patent Searching and Data


Title:
CONTROL METHOD FOR MOTOR ROLLER
Document Type and Number:
Japanese Patent JP2001161091
Kind Code:
A
Abstract:

To reduce wear in the braking member of an electromagnetic brake in a motor roller that is rotatively driven by a brushless motor and stopped by an electrical brake and the electromagnetic brake.

A motor driver 13 that drives and controls a brushless motor 2 is provided with a delay circuit 15 for detecting motor pulses. When a stop signal is inputted, the brushless motor is so constituted that an electrical brake is actuated by the actuation of a transistor and motor pulses detected by the motor driver 13 are inputted to the delay circuit 15. Reduction of motor pulses after the stop signal input is detected through the delay circuit, and an electromagnetic brake 7 is actuated. The delay circuit is installed on the driver board 14 of the motor driver.


Inventors:
ITO KAZUO
TACHIBANA TOSHIYUKI
FUKADA SHIGEKI
Application Number:
JP33996799A
Publication Date:
June 12, 2001
Filing Date:
November 30, 1999
Export Citation:
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Assignee:
ITO DENKI CO LTD
International Classes:
B65G39/00; B65G13/075; B65G23/08; B65G39/02; H02K7/10; H02P3/04; H02P6/24; (IPC1-7): H02P6/24; B65G39/00; H02K7/10
Attorney, Agent or Firm:
Kunihiko Fujita (1 outside)