DC MOTOR EXCESSIVE TORQUE DETECTION METHOD AND METHOD FOR PRESETTING PRESET ELEMENT USING DC MOTOR EXCESSIVE TORQUE DETECTION METHOD

摘要

PURPOSE:To provide a DC motor excessive torque detection method which can easily set or change an excessive torque value regardless of the type of a driver bit and can make common the driver bit. CONSTITUTION:The title items is provided with an excessive value setting means consisting of a data input device (not illustrated) and a D/A converter 15, two comparators 17 and 18 for comparing an output signal and an inversion signal from the excessive torque value setting means with a voltage value data from a DC motor 13, and an NOR logic circuit 19 for performing OR operation of the output signals from the two comparators 17 and 18.