Opening and closing time for motor brake

aand74

Member
Join Date
Dec 2005
Location
Deinze
Posts
131
I have an asynchronous motor of 5.5 Kw with integrated motor brake (Siemens 1LA5). What should I set for the opening and closing times of the brake in the brake control function in the drive (Sinamics S120) :
should it be 100ms, 200ms, 300ms, 400ms,500ms?
Any experiences?
 
Depends on the brake rectifier and the way you wire it normally. In the motor datasheet should be written (or in the brake manual) depending of the manufacturer.
 
It depends on the mass and speed, as the brake should only be used to hold in position.
meaning you have to stop with motor, and then apply brake.
for starting the motor needs enrgizing first and the open brake.
 

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