Siemens SINAMICS S120 Function Manual page 87

Parameterization of the encoderless brake ramp
p9581/p9381 (SI Motion brake ramp reference value, Control Unit/Motor Module) and
p9583/p9383 (SI Motion brake ramp monitoring time, Control Unit/Motor Module) are used to
set the steepness of the brake ramp. Parameters p9581/p9381 determine the reference
speed and parameters p9583/p9383 define the monitoring period. Parameters p9582/p9382
are used to set the time between the triggering of Safe Stop 1 and the start of brake ramp
monitoring.
Responses to brake ramp violations (SBR)
● Safety messages C01706 (SI Motion CU: SBR limit exceeded) and C30706 (SI Motion MM:
● Drive stopped with STOP A
Features
● Part of the encoderless SS1 and encoderless SLS functions
● Parameterizable safe brake ramp
Overview of important parameters (see the SINAMICS S120/S150 List Manual)
● p9360 SI Motion pulse suppression shutdown speed (Motor Module)
● p9560 SI Motion pulse suppression shutdown speed (Control Unit)
● p9381 SI Motion brake ramp reference value (Motor Module)
● p9581 SI Motion brake ramp reference value (Control Unit)
● p9382 SI Motion brake ramp delay time (Motor Module)
● p9582 SI Motion brake ramp delay time (Control Unit)
● p9383 SI Motion brake ramp monitoring time (Motor Module)
● p9583 SI Motion brake ramp monitoring time (Control Unit)
Safety Integrated
Function Manual, (FHS), 11/2009, 6SL3097-4AR00-0BP0
SBR limit exceeded)
Safety Integrated Extended Functions
5.9 Safe Brake Ramp (SBR)
87