Title:
MOTOR DRIVER, PRESSING MACHINE HAVING THIS MOTOR DRIVER AND PRESSING MATERIAL CONVEYING APPARATUS
Document Type and Number:
Japanese Patent JP3889669
Kind Code:
B
Abstract:
PROBLEM TO BE SOLVED: To provide a motor driver which can surely maintain a motor shutdown state.
SOLUTION: A motor drive controller includes a position control section, a speed control section, a phase signal generating section, a current control section and a PWM control section. A motor is rotatably drivably formed by current for driving the motor for each phase. A phase signal storage holding section, a phase signal input switching section, and a holding torque command signal input switching section are provided. The motor drive controller is formed to switch to input a phase signal stored and held in the phase signal storage holding section and a holding torque command signal to be output from a holding torque command section to a current control section during motor shutdown.
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Inventors:
Tanaka, Yasuhiko
Hayashi, Hideki
Senda, Masaki
Hayashi, Hideki
Senda, Masaki
Application Number:
JP2002000172638
Publication Date:
December 08, 2006
Filing Date:
June 13, 2002
Export Citation:
Assignee:
AIDA ENG LTD
International Classes:
B21D43/00; H02P29/00; B21D43/05; B30B15/28; G05D3/12; H02P3/18; H02P3/22; H02P5/00; H02P6/06; B21D43/00; H02P29/00; B21D43/05; B30B15/28; G05D3/12; H02P3/18; H02P5/00; H02P6/00; (IPC1-7): H02P5/00; B21D43/00; B21D43/05; B30B15/28; G05D3/12; H02P3/18; H02P3/22; //H02P6/06
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