摘要 |
PCT No. PCT/JP95/01238 Sec. 371 Date Feb. 8, 1996 Sec. 102(e) Date Feb. 8, 1996 PCT Filed Jun. 21, 1995 PCT Pub. No. WO95/35254 PCT Pub. Date Dec. 28, 1995A method of stopping of a winding machine that hoists and lowers an object prevents abrasion of the electromagnetic brake and the descent of load. The winding machine, which winches a load up or down in response to a torque command TREF to the electric motor M produced by the speed controller ASR in accordance with the a speed command NREF generated by the speed command generation circuit NRC, operates at the stopping of the machine to cease the motor control if the motor speed NFB is zero after the torque command to the motor M is brought to zero for a predetermined length of time following the issuance of a brake command to the electromagnetic brake which is coupled directly to the motor M.
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