METHOD FOR DETECTING STEP LOSSES IN STEPPING-MOTOR- DRIVEN ADJUSTING DEVICES

摘要

of the disclosure In the method for detecting step losses in steppingmotor-driven actuating devices, the nominal position of the actuating device is used for generating a sequence of drive pulses for the stepping motor. Simultaneously, the motor rotation is used for generating a pulse sequence which is compared at the rate of the drive pulses with a pattern, specific to the type of construction, of the stepping motor.