If UPS5000-E works in maintenance bypass mode, bypass module cannot work.
When installing the power line on the UPS5000-E, if there are different sources on the main-lines and bypass, you need to remove the copper bars connected to the bypass and main lines first, and then connect the main circuit and bypass input respectively.
What does āEā stand for in UPS5000-E-120k-HASBS?
First time powering on UPS5000-E, make sure that the UPS main input switch, bypass switch, output switch, maintenance bypass switch and battery switch are all OFF