Siemens SINUMERIK MC Commissioning Manual page 102

Safety functions integrated in the drive
4.3 SS1
Figure 4-1 Sequence for "Safe Stop 1" without encoder with SBR monitoring (p9506 = 1)
Functional feature of Safe Stop 1 without encoder
● Selection and monitoring of the brake ramp (SBR) or the acceleration (SAM) are
implemented in two channels, however braking at the OFF3 ramp is only through one
channel.
102
Safety Integrated (with SINAMICS S120)
Commissioning Manual, 02/2020, A5E46305916B AB