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A111 MainsLowVolt Mains low (under) voltage (AC) alarm In ABB DCS800

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How can resolve problem A111 MainsLowVolt Mains low (under) voltage (AC) alarm In ABB DCS800 ?

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Posts: 18454
Admin
Topic starter
(@click2electro)
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Joined: 4 years ago

Check:

- PwrLossTrip (30.21), UNetMin1 (30.22), UNetMin2 (30.23),
- If all 3 phases are present
- if the mains voltage is within the set tolerance
- if the main contactor closes and opens
- if the mains voltage scaling is correct [NomMainsVolt (99.10)]
- connector X12 and X13 on SDCS-CON-4
- connector X12 and X13 on SDCS-PIN-4/51
- cutting of resistors for voltage coding on SDCS-PIN-51

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