| 摘要 |
An electrical tool is controlled by a microprocessor in such a manner that an operating rotation speed is reached via a sequence of starting rotation speeds, the individual starting rotation speeds being set independently of the operating rotation speed setting. In a learning phase, after a predetermined number of starting rotation speeds, the motor is disconnected and the torque measured before the disconnection is stored as the maximum operating torque for a subsequent operating phase. <IMAGE>
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