Technical data

Safety Integrated Functions
8.5 Safety Integrated Extended Functions
Function Manual
398 Function Manual, 06/2012, 6SL3097-4AB10-0BP4
8.5.10.3 SDI restart
Restart after pulse suppression
If the drive has been switched off via OFF2/STO, the following steps need to be carried out
before a restart can be performed:
1st scenario:
● State after power-on: SDI selected, STO selected, OFF2 active
● Deselect STO.
● The drive enable must be given within 5 seconds via a positive edge at OFF1, otherwise
STO is reactivated.
2nd scenario
● Situation: Run until standstill with SDI selected, then OFF2 activated
● Select STO
● Deselect STO.
STO activated internally via OFF2: This activation must be undone by
selection/deselection.
● The drive enable must be given within 5 seconds via a positive edge at OFF1, otherwise
STO is reactivated.
3rd scenario
● Situation: Run until standstill with SDI selected, then OFF2 activated
● Deselect SDI
● Select SDI
STO activated internally via OFF2: This activation must be undone by deselecting SDI.
● After this the drive enable must be given by a positive edge at OFF1.
4th scenario
● Situation: All Safety Integrated functions are deselected
● After this the drive enable must be given by a positive edge at OFF1.
Note
In the 4th scenario the motor is not reliably started.