Technical data

Safety Integrated Functions
8.5 Safety Integrated Extended Functions
Function Manual
Function Manual, 06/2012, 6SL3097-4AB10-0BP4
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Figure 8-10 Safe Speed Monitor without encoder (p9309.0 = p9509.0 = 0)
If p9309.0 = p9509.0 = 1, the SSM monitoring is ended after the pulse suppression. The
feedback signal p9722.15 drops to 0. The SSM monitoring is only reactivated following a
new pulse enable.
8.5.7.3 Safe Speed Monitor restart
Restart after pulse cancellation for 9309.0 = p9509.0 = 0
If the drive pulses have been suppressed using OFF1/OFF2/STO, the following steps must
be carried out for a restart:
1. scenario:
● State after power-on:
– SSM active
– STO selected
– Pulse suppression active
● Deselect STO.
● A drive enable via a positive edge at OFF1 must occur within 5 seconds after deselection
of the STO, otherwise the drive will drop back into the STO state.