ABB ACS380 Drive
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Dec 14, 2021 7:18 am
How can resolve problem B5A0 STO event warning in ABB ACS380 Drive ?
1 Reply
Dec 14, 2021 7:18 am
Cause : Safe torque off function is active, ie. safety circuit signal(s) connected to connector STO is lost.
1. Programmable event:
31.22 - STO indication run/stop.
2. Informative warning.
3. Check safety circuit connections. For more information,
parameter 31.22 STO indication run/stop
