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51031998EN/AA
4. Maintenance
4.1 Troubleshooting
Indication
LED
12
flashes and the
buzzer beeps.
LED
14
flashes.
The yellow LED ␣
15
.
flashes, the red indicator
light
10
behind the UPS
comes on and the buzzer
sounds continuously.
Signification
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
20
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 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).
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
9
behind the UPS
(UPS stopped and connected to the
network for less than 30 minutes).
If any of LEDs
12
,
13
or
14
flash, there is a operating anomaly or an alarm.
If a LED flashes, the bargraph data is no longer displayed.
Troubleshooting not requiring MGE UPS SYSTEMS after-sales support
