Technical data

Safety Integrated Functions
8.9 Acceptance test and acceptance report
Function Manual
Function Manual, 06/2012, 6SL3097-4AB10-0BP4
527
Trace evaluation:
● Function SDI positive is activated (see bits "Deselect SDI positive" and "SDI positive
active")
● The drive starts moving (time axis approx -300 ms)
● Exiting the SDI tolerance window is detected (time axis 0 ms)
● Safety messages are initiated (time axis 0 ms; bit "internal event" is set to 0)
● Fault response STOP E (corresponds to selecting SOS) is initiated (time axis 0 ms; see
bit "STOP E active")
● The standstill position is only safely monitored (time axis 500 ms; see bit "SOS active")
after the transition time STOP E to SOS (p9554/p9354) has expired
● However, as the axis continues to rotate, the standstill tolerance window is violated (time
axis approx. 800 ms)
● STOP B is initiated (see bit "SS1 active")
● The drive is braked to a standstill
● Standstill is reached (time axis approx. 850 ms)
● STOP A (as follow-up response to STOP B) is activated (see bit "STO active"); at this
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 6 ms)) are
caused by internal calculations and do not present a problem.