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irah

Omron AC Drive / Varispeed F7

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Hi all, I have a varispeed f7 drive which gives a fault after startup (before operation) 'Base Block BB IGBT', any idea what should be checked. Thanx, Irah

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The IGBT is the output transistors, so maybe they are damaged.

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Or is one of the inputs defined as Base Block? Not sure about the IGBT in the message, though? Pp Edited by ParaffinPower

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