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R&D – USER MANUAL DT0430-E04
6 TROUBLESHOOTING
6.1. GENERAL ALARMS
In the event of a UPS fault, the default screen will be replaced by one of the alarm messages shown
in the table below:
ALARM
CAUSE
ACTION
INVERTER OFF
Initial start-up
Permanent overload
Start the Inverter
Check the output
INVERTER OVERLOAD
Continuous overload on UPS
output
Check the output load and restart
the inverter
Check the output short circuit
STATIC SWITCH LOCKED
High transient loads on UPS output
3 failed switching attempts on
inverter
Check the output load and restart
the inverter
BATTERY TEST FAILURE
Battery test not OK
Check the battery
Check the battery fuses
BATTERY PREALARM
Battery almost discharged, the
inverter is about to go off
Shut down connected non-critical
load
MAINS NOT AVAILABLE
No mains input
Check the mains line voltage
RESERVE NOT AVAILABLE
The input phase rotation is not
correct.
No input voltage
Check the line cyclic direction
Check the reserve line voltage.
UPS EMERGENCY
POWER OFF
The EPO control has been
activated
Choose the BYPASS position of
the rotary switch and wait until the
LCD is completely off and then
restart the UPS
PARALLEL DATA EXCHANGE
FAILURE
The machine is disabled due to
absence of communication
Call technical assistance
When an UPS experiences the fault which cannot be resolved and it is not able to guarantee uninterrupted
power to the load, perform an EMERGENCY BY-PASS and then leave the machine isolated and off.
Call the technical assistance.
