My Eaton UPS 9390 120KVA is malfunction. The active alarm now is “ALRM: CHECK BYPASS SWITCH” . We get the following status/alarm logs when we try to power UPS and press BYPASS at menu on display:
1.When power on UPS:
-STATUS: CONTROL POWER STATUS ON
-ALARM: CONFIGURATION ERROR 34
-NOTICE:OUTPUT AC UNDER VOLTAGE
-STATUS: INVERTER SWITCHGEAR OPEN
-STATUS:BATTERY SWITCHGEAR OPEN
-STATUS: BYPASS SWITCHGEAR OPEN
-ALARM: CHECK BYPASS SWITCHGEAR
-NOTICE: BYP SOURCE OUT OF TOLERANCE
-ALARM: CHECK BYPASS
-ALARM: CHECK STATIC SWITCH 1
-ALARM: CHECK STATIC SWITCH 2
-ALARM: CHECK STATIC SWITCH 3
-ALARM: CHECK BYPASS SWITCHGEAR OK
-ALARM: CHECK BYPASS OK
-ALARM: CHECK BYPASS SWITCHGEAR
-ALARM: ...