Siemens Sinamics S110 Function Manual page 493

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Trace evaluation:

● SOS function is activated (see bits "deselect SOS" and "SOS active")

● The drive starts moving (time axis approx -100 ms)

● Exiting the SOS tolerance window is recognized (time axis approx 0 ms)

● Safety fault is initiated (time axis approx. 0 ms; bit "internal event" is set to 0)

● Fault response STOP B is initiated (see bit "STOP A or B active" and "SS1 active")

● The drive is decelerated to a standstill

● Standstill reached (time axis approx. 200 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

point the speed falls below the shutdown speed SS1 (p9560/p9360) before the SS1 timer

(p9556/p9356) has expired (drops below the shutdown speed SS1 before SS1 timer

(p9556/p9356) has expired)

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

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