User Documentation

Fault reaction and restart
28 1486840000/01/11.2017
17. Fault reaction and restart
When the ACT20X-SDI-HDO-H detects a fault the output will go to Safe State, in which the output will go
to“de-energised”.
For device faults there are 2 ways of bringing the module out of Safe State.
1. Power cycle the module.
2. Bring the module out of SIL mode (refer to chapter 16.1 "Activate/deactivate safe parameterization" on
page 21).
3. Set it back to SIL mode again (refer to chapter 16.1 "Activate/deactivate safe parameterization" on page
21).