41
8.2.1. Troubleshooting guide for devices up to 3 kva.
Symptom
Possible cause
Solution
no alarms or indications on the LCd display and mains
voltage normal.
The power cable is not connected correctly.
Check that the power cables are firmly connected to
the mains.
The power cable is connected to an IeC output connector
on the UpS.
Correctly connect the power cable to the respective
IeC connector.
Icon
and warning code
flash on the LCd
display and the audible alarm modulated every second
is active.
The epo function is activated.
Close the epo signal circuit to deactivate it.
Icon
and warning code
flash on the LCd
display and the audible alarm modulated every two
seconds is active.
neutral earth fault detection. Inverted phase and neutral
input cables.
disconnect the input plug from the AC power socket
and invert the connection of the phase and the supply
neutral (rotate the plug 180º).
Icon
and warning code
flash on the LCd
display and the audible alarm modulated every two
seconds is active.
The internal or external batteries are badly connected
Check that all batteries are properly connected.
Fault code 27 and the
BATT fAULT
message
are shown on the LCd display. The alarm sounds
continuously.
The voltage of the batteries is too high or the charger is
faulty.
Contact the distributor or seller or, failing that, our
T.S.S.
Fault code 28 and the
BATT fAULT
message are
shown on the LCd display. The audible alarm sounds
continuously.
The voltage of the batteries is too low or the charger is
faulty.
Contact the distributor or seller or, failing that, our
T.S.S.
Icon
,
and warning code
flash
on the LCd display and the audible alarm modulated
every second is active.
The UpS is overloaded.
disconnect the excess loads from the output sockets.
The UpS is overloaded. The connected loads are powered
directly from the mains through the bypass.
disconnect the excess loads from the output sockets.
After repeated overloads, the UpS is locked in bypass
mode. The connected loads are powered directly from the
mains.
disconnect the excess loads from the output sockets,
shut down the device and restart it.
Fault code 49 is shown on the LCd display. The
audible alarm sounds continuously.
UpS input overcurrent.
disconnect the excess loads from the output sockets.
Fault code 43 is shown on the LCd display. The
audible alarm sounds continuously.
The UpS shuts down automatically as a result of an
overload in the output of the device.
disconnect the excess loads from the output sockets
and restart it.
Fault code 14 is shown on the LCd display. The
audible alarm sounds continuously.
The UpS shuts down automatically as a result of a short
circuit in the output.
Check the output wiring and that the connected loads
are not short-circuited
Fault codes 01, 02, 03, 11, 12, 13 and 41 are shown
on the LCd display. The audible alarm sounds
continuously.
An internal fault has occurred in the UpS. This is due to one
of two possibilities:
1. The load is still powered, but directly from the mains
through the bypass.
2. The load is no longer powered.
Contact the distributor or seller or, failing that, our
T.S.S.
The backup time is shorter than expected.
The batteries do not charge completely.
Charge the batteries for at least 5 h and then check
their charge state. If the problem persists, contact the
distributor or seller or, failing that, our T.S.S.
Faulty batteries.
Contact the distributor or seller or, failing that, our
T.S.S. for battery replacement.
Fault code 2A is shown on the LCd display. The
audible alarm sounds continuously.
Charger short-circuited at its output.
Check whether the connection of the external battery
pack connected to the UpS is short-circuited.
Fault code 45 is shown on the LCd display. At the
same time, the audible alarm sounds continuously.
The charger does not provide output and the battery voltage
is less than 10 v per element.
Contact the distributor or seller or, failing that, our
T.S.S.
Tab. 23.
Troubleshooting guide.
SLC TWIN RT2
UnInTeRRUpTIbLe poweR SUppLy SySTemS (UpS)
USER MANUAL
