5. Maintenance
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.
Indication Diagnostic Correction
1
The UPS does not start, the LCD
indicates: COLD START NOK
CHECK AC WIRING
The AC input power is not
connected or is connected to the
UPS output.
w Check AC power availability.
w 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 LCD indicates: SITE WIR.
FAULT CHECK AC WIRING
Phase inversion on AC input
power. The UPS does not start.
Check polarity and grounding system.
3
LED (22) is ON, the LCD
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 LCD
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 department.
5
LED (21) is ON, the LCD
indicates: OVERLOAD ALARM
REDUCE LOAD
The load level exceeds the
programmed overload level or
UPS capacity.
Reduce the load.
6
LED (22) is ON, the LCD
indicates: LOAD UNPROTECTED
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
connected devices and disconnect any
non-priority devices.
7
LED (22) is ON, the LCD
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
connected devices and disconnect any
non-priority devices. Shut down and
restart the UPS to return to normal
operation.
8
LED (22) is ON, the LCD
indicates: OVERLOAD FAULT
REDUCE LOAD
The UPS shut down automatically
because of overload at the UPS
output.
Check the power drawn by the
connected devices and disconnect any
non-priority devices.
9
LED (22) is ON, the LCD
indicates: LOAD SHORT-CIRCU
CHECK WIRING
The UPS shut down automatically
because of a short-circuit at the
UPS output.
Remove the load, and then restart the
UPS.
10
LED (22) is ON, the LCD
indicates: INTERNAL FAULT
SERV REQUIRED
A UPS internal fault has occurred.
There are two possible situations:
w the load is still supplied, but
directly with AC power via the
bypass,
w the load is no longer supplied.
Call the after-sales support
department.
11
The LCD indicates: REMOTE
POWER OFF RPO
Switching of the Remote Power
Off (RPO) has led to the shut
down of the UPS.
Return the contact in the normal
position, and press the ON/OFF button
to restart.
86-86710-00EN A02 - Page 23
To Next Page
Loading...
