Holding brake control
This function serves as a low-wear control of a holding brake. The holding is usually mounted to the motor as an option. The holding brake can be automatically released via the start command for the inverter or manually via an external control signal, for instance, by a higher-level Controller. The interaction of higher-level Controller and holding brake is especially important for vertical applications. Horizontal applications need a less demanding holding brake control.
Preconditions
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Observe that the holding brake is an important element of the machine's
safety concept as a whole. Therefore be sure to carry out commissioning of this system part with particular care!
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Holding brakes are not intended for braking during operation.
The increased wear caused by braking during operation may
destroy the holding brake prematurely!
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Automatic DC braking must be deactivated if a holding brake is used.
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The holding brake control itself only outputs a digital trigger for releasing the holding brake. This trigger "Release holding brake [115]" must be assigned to a digital output or, in the simplest case, to the relay when then switches the brake
supply. 
Configure digital outputs
Configure digital outputs –
If the holding brake is to be controlled via a digital output, the use of an additional relay or power contactor is required. The digital output is not suited for direct control of a holding brake.
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If, instead of an electrically releasing (self-holding) holding brake, an electrically holding
(self-releasing) holding brake is to be controlled, a signal inversion
for the digital output used or for the relay must be set! Configure digital outputs
Configure digital outputs