A5001 alarm in ABB ACS355
How can resolve problem A5001 alarm in ABB ACS355 ?
Cause : Drive is not responding.
1. Check panel connection.
For A5001 (Drive not responding) issue, it was found that there is no DC3.3V at the connector X3 at WINT1011C power board.
IC A843 (DC DC buck converter P/N: ADP2301AUJZ) was found faulty.
After replacement, no more A5001.