Vendor Knowledge Center

ABB

AC500 controllers, ACS drive families, and motor technologies.

Vendor libraries

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Field cases

• ACS580 overcurrent at accelerationDrives

  Fault 2310 at acceleration — ramp shorter than load inertia allows, not a failed drive.

• Motor phase imbalance from bus jointMotors

  8% phase-current imbalance caused upstream by a degraded MCC bus joint, not the winding.