Liebert UHA1R-0100 User Manual page 57

No. Fault
After ON/SILENCE key is
4 pressed, the UPS does not
start up
5 The mains indicator blinks
The buzzer beeps every 0.5
6 second, and the LED displays
OUT OVERLOAD
The fault indicator is on, LED
7 displays BATTERY FAULT,
and the battery indicator blinks
The fault indicator is on,and the
8 LED displays CHARGER
FAULT
Battery discharge time is
9
shorter than the standard time
The buzzer beeps for a long
time, the fault indicator is on,
10
and the LED displays OVER
HEAT/FAN FAULT
The buzzer beeps for a long
time, the fault indicator is on,
11
and the LED displays 'OUT
SHORT'
The buzzer beeps for a long
time, the fault indicator is on,
and the LED displays
12 RECTIFIER FAULT,
INVERTER FAULT,
AUPOWER FAULT or OUT
SHORT
Abnormal noise or smell in the
13
UPS chassis
In Battery mode, yellow
indicator is on, the buzzer
beeps for a long time, and the
14
UPS is ready to be turned off
owing to the low battery
capacity
The fault indicator is on, and
15 the buzzer beeps for a long
time
Cause Analysis
Time of pressing the
ON/OFF key is too short
Overload
Mains voltage or
frequency is out of the
UPS input range
Overload
External battery switch is
open
External battery cable
improperly connected
Reversely connect the
external battery
Battery damaged
Charger failed
Battery is not fully
charged
Battery capacity is
depleted
UPS internal over
heat/fan fault
The UPS output short
circuit
UPS internal fault
UPS internal fault
Low battery capacity, the
UPS is about to turn off,
and the load is about to
power off
Parallel address is wrong
Liebert ITA 10kVA UPS User Manual
®
Chapter 7 Maintenance And Troubleshooting
Disposal Method
Continuously press and hold ON/OFF key for more than
one second until the buzzer beeps
Remove all loads and restart the UPS
Be careful of the battery backup time, if the UPS
operates in Battery mode
Remove some non-priority loads when the rectifier or
mains normal voltage is oveloaded
Close the external battery switch
Check and confirm that the external battery cables are
connected properly
Confirm the correctness of the polarities of the external
battery cables connection
Contact local service center of Emerson to replace the
battery
Contact local service center of Emerson to replace or
maintain the charger
When the mains is normal, charge the battery for more
than 8 hours, and retest the discharge time
Contact the local service center of Emerson to replace
the battery
1. Ensure that the fan is not blocked, and the airflow
blows from the ventilation holes on the rear panel of the
UPS;
2. Ensure that the clearance between rear panel & side
panel of the UPS and the wall or the adjacent equipment
is bigger than 200mm;
3. Ensure that the ventilation holes on the front panel,
side panel, base plate and rear panel are not obstructed;
4. Wait for 10 minutes to restart the UPS
After the load short circuit fault is removed, the UPS is
powered off and restart
Contact the local service center of Emerson, if the UPS
needs to be maintained
Turn off the UPS immediately, cut off power output, and
contact local service center of Emerson to acquire
technical support
1. Save the load data immediately and finish the
shutdown operation of proprity load to avoid data lost or
damaged;
2. Connect the input terminals of the UPS to the back-up
AC power
1. Open the UPS mains switch;
2. Reset the parallel configuration address
49