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Mounting and options
3.6 Holding brake
3.6.2
Properties
● The holding brake is used to clamp the motor shaft when the motor is at a standstill. The
holding brake is not a working brake for braking the rotating motor.
● The holding brake can handle 2000 braking operations as a result of Emergency Stop or
power failure without the brake being subject to inadmissible wear.
● The rated voltage of the holding brake is 24 VDC +/- 10%. Voltages outside this tolerance
range can cause faults.
Note
Subsequent conversion of motors with or without a holding brake is not possible.
40
WARNING
Danger to life caused by unintended movements of the machine or installation
If you ignore the permissible number of braking operations, the braking effectiveness of
the holding brake can be irreversibly reduced. This can cause unintended movements of
the machine or installation resulting in death or serious injury.
• Observe the permissible number of braking operations.
• Operate the motor only in conjunction with an intact brake.
NOTICE
Premature wear of the motor holding brake when operated outside its permissible
voltage range
Operating the motor holding brake outside its permissible voltage range at the motor
connection will damage the brake.
• Ensure that the motor holding brake is only operated within its permissible voltage
range.
NOTICE
Faulty brake function due to inadmissible wear
Inadmissible wear means that the braking function can no longer be guaranteed.
• Comply with the emergency stop features stated above.
• Avoid repeated brief acceleration of the motor against a holding brake that is still
closed. Consider the operating times of the brakes and the relays in the drive control
and enable.
S-1FK7 DYA G2 synchronous motors with planetary gearbox
Operating Instructions, 05/2018, A5E44881183B AA
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