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A121 AutotuneFail Autotuning failed alarm In ABB DCS800

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click2electro
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How can resolve problem A121 AutotuneFail Autotuning failed alarm In ABB DCS800 ?

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click2electro
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To clear the alarm set ServiceMode (99.06) = NormalMode

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Jaivignesh1898
(@jaivignesh1898)
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@click2electro sir I have a same problem I changed service mode to normal mode then also same problem sir

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click2electro
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Check motor data and tune again. When you run autotune motor will be de-couple from load.

When autotune fail try again some time this fault comes.

If fault come again and again then may be control card faulty.

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