User Documentation

Fault reaction and restart
28 1482880000/01/11.2017
17. Fault reaction and restart
When the ACT20X-(2)SDI-(2)HDO-(L) detects a fault the output will go to Safe State, in which the output will
go to“de-energised”. If the fault is application-specific (cable error detection) the device will restart when the
fault has been corrected.
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).