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Page 20 - 34007532EN/AA
4. Maintenance
4.1 Troubleshooting
If any of LEDs 25 , 26 or 27 flash, there is a operating anomaly or an alarm.
If a LED flashes, the bargraph data is no longer displayed.
Indication
LED 27 flashes and the
buzzer beeps.
LED 25 flashes and the
buzzer beeps.
LED 25 flashes and the
buzzer emits a long beep
once per hour.
The yellow LED 24
flashes, the red indicator
light 11 behind the UPS
comes on and the buzzer
sounds continuously.
Diagnostic
UPS overload. Overload is too long or too high.
◗ If AC power is present and within tolerances, the UPS
goes to bypass mode (supply directly by the AC-power
source). LED 19 flashes.
The buzzer beeps every seconds.
◗ If AC power is not present or not within tolerances,
the connected applications are no longer supplied.
The buzzer sounds continuously.
A battery fault was detected during the automatic
battery test.
The battery has reached the theoretical end of its
service life.
The function for monitoring the phase and neutral
position of your electrical network has detected a
reversal.
Correction
Check the power drawn by the
equipment and disconnect any non-
priority devices.
◗ Check that the battery connector is
fully pushed in.
◗ Replace battery module (see the
Maintenance section).
◗ Reset the alarm by pressing
buttons 22 and 23 simultaneously
for 3 seconds.
◗ It is advised to replace the battery.
See the section on maintenance.
Directly earthed neutral type
networks: to correct cabling, unplug
and turn the network socket, of the
DIN-SCHUKO type, by 180 degrees
or contact an electrician to modify
your electrical network.
For all other network types, de-
activate the detection function (this
function is only operational for
directly earthed neutral electrical
networks):
Press for at least 5 seconds the
pushbutton 10 behind the UPS
(UPS stopped and connected to the
network for less than 30 minutes).