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Troubleshooting
5.1 Troubleshooting
If LED (21) or (22) is ON, a fault or an alarm has occurred. Use the escape button (24) to stop the audio alarm.
Display Description Corrective Action
1
The UPS does not start, the
alphanumeric display indicates:
COLD START NOK CHECK AC
WIRING
The AC input power is not con-
nected or is connected to the
UPS output.
Check the UPS is correctly connected
to the AC input power.
2
LED (22) is ON, the SWF LED
(11) at the rear of the UPS is ON.
The alphanumeric display indi-
cates: SITE WIR. FAULT CHECK
AC WIRING
Phase inversion on AC input
power. The UPS does not start.
◗ In an earthed-neutreal system, to
correct the wiring, call an electrician to
modify the connections.
◗ For all other types of system, disable
the detection function.
3
LED (22) is ON, the alphanumeric
display indicates: NO BATTERY
CHECK CONNECTION
The battery is incorrectly
connected.
Check battery connections (see
Section 5.2, Battery-Module
Replacement).
4
LED (22) is ON, the alphanumeric
display indicates: BATTERY
FAULT SERV REQUIRED
A fault is detected on the battery. Replace the battery (see Section 5.2,
Battery-Module Replacement). Call the
after-sales support
5
LED (21) is ON, the alphanumeric
display indicates: OVERLOAD
ALARM REDUCE LOAD
The load level exceeds the pro-
grammed overload level or UPS
capacity.
Check the power drawn by the con-
nected devices and disconnect any
non-priority devices. Check the pro-
grammed overload level.
6
LED (22) is ON, the alphanumeric
display indicates: LOAD UNPRO-
TECTED OUTPUT OVERLOAD
The UPS is overloaded. Devices
connected to the UPS are fed
directly by the electrical network
via the By-pass.
Check the power drawn by the con-
nected devices and disconnect any
non-priority devices.
7
LED (22) is ON, the alphanumeric
display indicates: REDUCE
LOAD RESTART UPS
After repetitive overloads, the
UPS is locked in the By-pass
position. Devices connected to
the UPS are fed directly by the
electrical network.
Check the power drawn by the con-
nected devices and disconnect any
non-priority devices. Shut down and
restart the UPS to return to normal
operation.
8
LED (22) is ON, the alphanumeric
display indicates: OVERLOAD
FAULT REDUCE LOAD
The UPS shut down automatically
because of overload at the UPS
output.
Check the power drawn by the con-
nected devices and disconnect any
non-priority devices.
9
LED (22) is ON, the alphanumeric
display indicates: LOAD SHORT-
CIRCU CHECK WIRING
The UPS shut down automatically
because of a short-circuit at the
UPS output.
Check the installation at the UPS out-
put (wiring, fault equipment).
10
LED (22) is ON, the alphanumeric
display indicates: INTERNAL
FAULT SERV REQUIRED
A UPS internal fault has occurred.
There are two possible situations:
◗ The load is still supplied, but
directly with AC power via the
bypass,
◗ The load is no longer supplied.
Call the after-sales support depart-
ment.
11
The alphanumeric display indi-
cates: REMOTE POWER OFF
RPO
Switching of the Remote Power
Off (RPO) has led to the shut
down of the UPS.
Replace the contact in the normal
position, and press the ON/OFF button
to restart.
ENGLISH
Troubleshooting
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