| 摘要 |
A method and device for checking the brake of a motion-controlled and monitored printing press drive motor includes a processor unit which is connected on its input side to a motion signal generator and a motion control panel, and is connected on its output side with the drive motor and associated motor brake via a power output stage which is configured as a power converter. The processor unit generates the control signals for the motor and brake. Before each starting operation and with the brake still applied, a momentary small nominal power motion value is fed as a test value to the drive motor and subsequently the actual motor motion values are measured. If actual motion is detected, the brake torque is not sufficient, the system generates an error message and it switches the drive motor off. If no motion is detected, the motor brake is released, the nominal power value is maintained and the motion of the drive motor is re-checked. If motion still does not take place, the motor brake has not released properly, whereupon the system generates an error message and stops the drive motor. If motion is >¦0¦, the motor brake function check is completed and the drive motor is run up to the desired motion values.
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