ABB ACS380 Drive
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Dec 14, 2021 8:51 am
How can resolve problem 5091 Safe torque off Fault in ABB ACS380 Drive ?
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Dec 14, 2021 8:51 am
Cause : Safe torque off function is active, i.e. safety circuit signal(s) connected to connector XSTO is broken during start or run,
or while drive is stopped and parameter 31.22 STO diagnostics is set to Fault.
1. Check safety circuit connections.
For more information, see drive hardware manual and description of parameter 31.22 STO diagnostics.
