ABB ACS355 Drive
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Jun 20, 2024 11:40 am
Cause : INPUT PHASE LOSS comes when the drive isn't receiving power from one of the phases in your AC supply. This alarm is generated when DC voltage ripple exceeds 14% of nominal DC voltage.
The A2026 alarm code on your ABB ACS355 drive indicates an INPUT PHASE LOSS. This means the drive is detecting a problem with the power supply feeding the motor.
- Check input power line fuses.
- Check for input power supply imbalance.
- Check fault function parameters.