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UPS user manual
Manuel de l’utilisateur de l’ASI
Utilizzo dell’UPS
OMP06263 REV. B 33
 Changes to the operating parameters and starting operations on the UPS may
be potentially dangerous for the device and for persons.
5.3.1 Resetting alarms
The UPS is equipped with internal protections which block the system or some of its sections.
The alarm can be cleared and normal operation can be resumed via the
RESET ALARMS
page. In case the failure persists, the UPS will return to the previous failure condition.
In some cases the RESET is necessary to simply reset a failure signal, then the UPS will
resume operation. The failure conditions which impose a manual reset are:
 A10 BATTERY FAULT
 A12 STOP TIMEOUT SHORT-CIRCUIT
 A29 MAINTENANCE REQUIRED
 A33 ASYMMETRIC LOAD
 A40 MIN DC VOLTAGE
 A44 INVERTER DESATURATION
 A50 CURRENT INVERTER SATURED
 A52 UNDER VOLTAGE LOCKOUT

A55 PARALLEL CABLE DISCONNECTED

System restart after a shutdown due to EPO activation
For a description of the UPS status in each of the failure conditions listed above, please refer to
the “Faults and alarms” section.
A28 CRITICAL STOP
NOTE: Reccomended to performe the service test before restart the UPS.
The UPS is equipped with internal protections which block the system.
Before to reset the alarm, must be sure that there are not critical fault on the UPS.
To reset this alarm, is required to performe “RESET ALARMS” procedure as
indicated above and restart completely the UPS.
5.3.2 Battery test
The
BATTERY TEST
section allows to carry out a short discharge test of the battery. In case
the battery is not efficient, the alarm “A10 – Battery fault” is generated at the end of the test.
Possible loss of supply
This test can affect the continuity of supply to the loads if the battery is not fully
charged.