Mains indicator Green Rectifier in Normal Operation Flashing Green Input mains voltage or frequency out of normal range Off Input AC Not Available Battery indicator Battery Normal, but discharging and powering the load Battery End of Discharge pre-warning, Battery abnormal (high Flashing Green or low Absent or Polarity Reversed), charger abnormal Battery and Converter Normal, Battery charging. Off Bypass indicator Load on Bypass power Bypass not available, out of normal range, Static bypass Flashing Green switch short or broken fault, bypass switch wiring fault, bypass over current Bypass Normal, load not on bypass Off Inverter indicator Inverter Normal and powering the load Inverter failed, Inverter IGBT bridge direct conduct Flashing Green protection, Inverter Thyristor short or broken fault, over load or Parallel Overload, Feedback protection Off Inverter not operating Output indicator UPS output ON and Normal UPS output OFF. Off Fault indicator Off Normal Operation UPS fault e.g. Red
Mains indicator Green Rectifier in Normal Operation Flashing Green Input mains voltage or frequency out of normal range Off Input AC Not Available Battery indicator Battery Normal, but discharging and powering the load Flashing Green Battery End of Discharge pre-warning, Battery abnormal (high or low Absent or Polarity Reversed), charger abnormal Off Battery and Converter Normal, Battery charging. Bypass indicator Load on Bypass power Flashing Green Bypass not available, out of normal range, Static bypass switch short or broken fault, bypass switch wiring fault, bypass over current Off Bypass Normal, load not on bypass Inverter indicator Inverter Normal and powering the load Flashing Green Inverter failed, Inverter IGBT bridge direct conduct protection, Inverter Thyristor short or broken fault, over load or Parallel Overload, Feedback protection Off Inverter not operating Output indicator UPS output ON and Normal Off UPS output OFF. Fault indicator Off Normal Operation Red UPS fault e.g.