Siemens SINAMICS S120 Function Manual page 126

Description of Safety Integrated functions
4.2 Safety Integrated Extended Functions
During safe motion monitoring, the "hysteresis and filtering" functions can be activated or
deactivated together using the enable bit p9501.16. In the default setting, the functions are
deactivated (p9501.16 = 0).
Note
Exception: SSM as an active monitoring function
If the "hysteresis and filtering" function is enabled, the SSM function is evaluated as an
active monitoring function and, after a STOP F, also results in a follow-up response
STOP B/STOP A.
Note
Time-delayed SSM feedback
When "hysteresis and filtering" is activated with output signal SSM, a time-delayed SSM
feedback signal occurs for the axes. This is a characteristic of the filter.
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Function Manual, 12/2018, 6SL3097-5AR00-0BP1
Safety Integrated