Holding Brake

All servo motors are available with a holding brake option.

  • A spring applied brake (24VDC) is integrated into the servo motors.
    • When this brake is de-energized, it blocks the rotor.

Secure hanging loads!

Risk of injury exists for personnel operating the machine.

  • If there is a suspended load (vertical axes) and the servo motor's holding brake is released without the servo drive producing output at the same time, the load may fall down!
  • The user should consider:
    • Required local safety standards in the case of hanging loads (vertical axes).
    • The need to ensure personnel safety by using additional safety measures for hazard avoidance.

  • The holding brakes are designed as standstill brakes.
    • They are not suited for repeated operational braking.
  • In the case of frequent, operational braking, premature wear and failure of the holding brake is to be expected.
  • The length of the servo motor increases when a holding brake is mounted.
  • The holding brake can be controlled directly by the servo drive.
  • The winding is suppressed in the servo drive.
    • Additional circuitry is not required (see the servo drive instruction manual).
  • If the holding brake is not controlled directly by the servo drive, additional wiring (e.g., varistor) is required.
  • See Brakes - Technical Data.