Electrical brake unit for braking electric drive motor in e.g. sheet fed printing machine, has electrical brake assembly switchable between power converter and drive motor, where brake assembly receives electrical energy

摘要

The brake unit has an electrical brake assembly (15) switchable between a power converter (3) and an electric drive motor (13), where the brake assembly receives electrical energy. An electrical energy is feed back into the power converter during braking of the motor. A monitoring unit (16) is provided for monitoring a motor current of the motor, where the motor is lockable by a mechanical locking brake (14). The brake assembly exhibits an electric rectifier and brake resistances (19). An independent claim is also included for a method for electrical braking of an electric drive in a print substrate processing machine.