Siemens Sinamics S120 Function Manual page 439

Ex ample trace: SLS (with encoder) with STOP A
①
Drive_1.r9714[0]: SI motion diagnostics velocity, load-side velocity actual value at the Control Unit
②
Active SLS level bit 1
③
Active SLS level bit 0
④
SLS active
⑤
Internal event
⑥
STO active
⑦
STOP A or B active
⑧
Select SLS bit 1
⑨
Select SLS bit 0
⑩
Deselect SLS
Image A-5 Example trace: SLS (with encoder) with STOP A
Trace evaluation:
● SLS function with SLS level 1 is activated (see bits "SLS active", "active SLS level bit 0"
and "active SLS level bit 1")
● Drive is accelerated beyond the SLS limit (time axis from approx. -400 ms)
● Exceeding 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 A is initiated (time axis 0 ms; see bit "STOP A or B active" and
"STO active")
● Drive coasts down (see curve of Drive_1.r9714[0])
Safety Integrated
Function Manual, (FHS), 07/2016, 6SL3097-4AR00-0BP6
A.3 Acceptance tests (recommendations)
Appendix
439