Siemens SINUMERIK Series Function Manual page 159

Safe Brake Control (SBC)
Safe Brake Control (SBC) can be enabled for axes with a holding brake.
Figure 6-23
Emergency Stop via SS1 and handling OFF3
The SINAMICS safety function Safe Stop 1 (SS1) is ideal for an Emergency Stop function.
SS1 provides braking along the OFF3 ramp with subsequent pulse suppression, i.e. STOP
category 1 according to IEC 61800-5-2.
If an Emergency Stop is generated via SS1, the Emergency Stop via OFF3 can be omitted;
parameter p0849[0] = 1 BICO. In this case, it will be necessary to change the on/off sequence.
Safety Integrated
Function Manual, 10/2015, 6FC5397-3EP40-5BA3
SERVO: Safe brake control
Commissioning - application example
6.5 Configuration of the SI functions for the drive
159