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ABB ACH550 and ACS550 Drive Power Connection Specifications Addendum

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This addendum provides updated specifications for power connection terminal wire sizes and tightening torques for ABB ACH550 and ACS550 drive frame sizes R1 through R8, replacing the corresponding tables in the referenced user manuals. It also includes derating requirements for single-phase supply operation and instructions for adjusting motor load curve parameters (3007) and maximum current settings to prevent nuisance trips and drive failure.

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