Troubleshooting - LEGRAND DAKER DK Plus 5 kVA Manual De Instalación

5 Troubleshooting

INDICATION
Fault LED
Check the error code on
the display
(see error code table)
The UPS doesn't work
in stored energy mode
or the backup time is
shorter than its intended
performance.
The UPS is working
normally but the loads are
not powered
DIAGNOSTIC
Er05, Er39
intermittent sound
alarm
Er12
continuous alarm sound
Er11, Er14
intermittent sound
alarm
Er 24
other error codes
-
-
DAKER DK Plus
5 kVA - 6 kVA - 10 kVA
SOLUTION
The batteries don't work properly.
Check for proper battery connection
and measure battery voltage to ensure
that the batteries are charged.
Recharge the batteries for 8 hours if
necessary.
If the problem persists or if it is
necessary to replace them, contact the
LEGRAND Technical Support Service.
Disconnect some non-critical loads
from the UPS output until the overload
ceases.
Check if there is any short-circuit between
the output cables due to a faulty
insulation. Replace the cables if necessary.
Verify that the ventilating fans work
properly.
If the problem persists or if it necessary
to replace them, contact the LEGRAND
Technical Support Service.
When the UPS is in CVCF mode, it is not
possible to have the bypass line. This
operating mode is available only on the
model 3 101 77.
Check the error code table.
If the problem persists, contact the
LEGRAND Technical Support Service.
If the backup time remains
unsatisfactory after 8 hours of battery
charging, contact the LEGRAND
Technical Support Service.
Check that the output cables are
properly connected and the external
output breaker is turned on.
If the problem persists, contact the
LEGRAND Technical Support Service.
65