Siemens Sinamics S120 Function Manual page 430

Appendix
A.3 Acceptance tests (recommendations)
Trace evaluation:
● SS1 function is selected (time axis 0 ms; see bit "deselection SS1")
● Response bit "SS1 active" is set (time axis approx. 20 ms)
● The drive decelerates along the configured OFF3 ramp (p1135)
● Recording of r9714[0] (orange curve) shows whether the OFF3 ramp is active.
Not e
B ehavior for S S1 with external STOP
When selecting "Safe Stop 1 with external stop (Page 90)" the drive is not braked along
the OFF3 ramp, but after the delay time (p9556) has expired, only STO/SBC is
automatically initiated.
● STO is activated (time axis approx. 370 ms; see bit "STO active"); at this point the speed
falls below the shutdown speed SS1 (p9560) (in this case shutdown speed SS1 is fallen
below, before SS1 timer p9556 has expired)
Not e
Time differences through internal c alculations
Small time differences (of the order of two to three safety cycles (here up to 36 ms)) are
caused by internal calculations and do not present a problem.
430
Function Manual, (FHS), 07/2016, 6SL3097-4AR00-0BP6
Safety Integrated