Front panel
Rev.B JSE410920 22/07/08 JUD408312
5 of 29
2.2 ALARMS AND OPERATING STATUS
The alphanumeric display offers a complete diagnostic of the system by showing 28
alarms and 6 operating status descriptions.
Each alarm is associated to a code that allows it to be stored in the events history.
A1 MAINS FAULT
= Rectifier input mains failure
Possible causes: 1) Central system black-out (mains failure)
2) Distribution problems upstream of the UPS
3) RCB open or blown fuses
A2 INPUT WRONG SEQ
= Input phase rotation not correct
A3 BOOSTER STOPPED
= The input rectifier is off. The battery is discharging.
A4 BOOSTER FAULT
= The input rectifier is out of order. The battery is
discharging.
A5 DC VOLT FAULT
= Inverter input voltage out of tolerance
Possible causes: 1) Mains input missing and battery fully discharged
2) Distribution problems upstream of the UPS
3) RCB open and or BCB open
4) Rectifier bridge failure
5) Inverter bridge failure
A6 BATTERY IN TEST
= Battery test in progress
A7 BCB OPEN
= Battery circuit breaker open
A8 BATTERY DISCHAR
= The battery is discharging
Possible causes: 1) Rectifier input mains failure (alarm A1 or A2
present)
2) Booster stopped (alarm A3)
3) Booster fault (alarm A4)
A9 BATTERY AUT END
= Battery autonomy (calculated) has expired
A10 BATTERY FAULT
= Battery test failed
Possible causes: 1) The test has been carried out with the battery not
perfectly charged
2) One or more battery cells are damaged
It is possible, after having verified the status of the battery, to reset this alarm by
means of the front panel (see menu SPECIAL).
A11 SHORT CIRCUIT
= Intervention of the short circuit protection (current
To Next Page
Loading...
