Siemens Sinamics S110 Function Manual page 499

Trace evaluation:
● SLS function with SLS level 2 is active (see bits "deselection SLS", "selection SLS bit 0",
● Drive is accelerated beyond the SLS limit (time axis from approx. -400 ms)
● Exceeding of the limit is recognized (time axis 0 ms)
● Safety fault is initiated (time axis 0 ms; bit "internal event" is set to 0)
● Fault response STOP B is initiated (time axis 0 ms; see bit "STOP A or B active" and
● Drive is decelerated to a standstill (see curve of Drive_1.r9714[0])
● Standstill reached (time axis from approx. 250 ms)
● STOP A (as follow-up response to STOP B) is activated (see bit "STO active"); at this
Function Manual
Function Manual, 01/2011, 6SL3097-4AB10-0BP3
"selection SLS bit 1" and "SLS active", "active SLS level bit 0" and "active SLS level
bit 1")
"SS1 active")
point the speed falls below the shutdown speed SS1 (p9560/p9360) (drops below the
shutdown speed SS1 before SS1 timer p9556/p9356 has expired)
Note
Small time differences (of the order of 2 to 3 Safety clock cycles (here up to 36 ms)) are
caused by internal calculations and do not present a problem.
Safety Integrated Functions
8.9 Acceptance test and acceptance report
497