Lenze DSD - Manual (Page 461)

Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
461
18 Drive dimensioning messages
18.6 Brake
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18.6 Brake
18.6.1 Rated torque/dimensioning torque < safety factor of the brake
18.6.2 Service brake is not checked
18.6.3 No brake available
Warning!
The characteristic torque/dimensioning torque of the brake is xxx. Thus the required braking torque which
was determined with the required safety factor of yyy is not reached.
Cause Effects Possible remedies
The required safety factor is not
achieved.
The brake slips, the load is not held. Use larger or uprated brake, or use a
different motor with a larger brake.
Note!
In DSD the dimensioning of the electromechanical brake as holding brake is only carried out for standstill.
The dimensioning as service brake under consideration of the speed-dependent decreasing braking torque
and the max. permissible friction energy must be carried out manually.
Cause Effects Possible remedies
For the selected application, the elec-
tromechanical brake is required as
service brake.
• In DSD the brake is not checked as
service brake.
In case of an emergency, the drive is
not safely braked.
The dimensioning as service brake
must be carried out manually.
Note!
No motor brake has been selected for the drive!
For safety reasons, a suitable brake assembly is required (electromechanical motor brake or another brak-
ing system).
Cause Effects Possible remedies
The application requires a mechani-
cal brake.
In case of an emergency, the drive
cannot be braked safely.
Select a motor with brake.