13
4. Warning code/faultcodeandsolution
4.1 Warning code andsolution
When the "
"
symbolon the UPS LCDflashes,the UPS is in alarmstate. Press the pageturning
keyto the error state page(refer to 3.5), observe the alarm code andmakeappropriate
processingaccordingto the table below.
Alarm Indication
Possible reasons
Treatment measures
1
No battery
connection
1. No battery connected
2. Battery damaged
1. Checkthe connection of batteries.
2. Changethe batteries.
2
Battery low
voltage
Thebattery voltage is lessthan
the low voltage warningpoint.
The batteries dischargeto below
the alarm point.
After the battery has beensat for a
period of time, it canbe turned on
again. The built-in charger can be
turned on to chargethe battery.
4
Input neutral
and live cables
are reversed
1. Input neutral and live cables
are reversed.
2. Input groundcable is not
connected.
3. Output groundcable is not
connected.
1. Reverse the neutral andthe live
cables.
2. Check the ground cable
connection.
8
Battery over
voltage
UPS detects highbattery voltage
Checkthat the battery quantity
setting isconsistent with the actual
battery quantity.
9
Chargerfailure Abnormal charger hardware
Contact the supplier.
10
Over
temperature
alarm
1. Fan fault
2. Air ductof UPS rear panel is
blocked.
3. Overload
4. NTCsensor abnormal or
connection abnormal
5. Power componentIGBT is
damaged.
1. Checkthe rectifier fan.
2. Remove blockageson the rear
panelof the UPS.
3. Checkthe load.
4. If the above treatments do not
work, contact the supplier.
12
Fan fault
1. Fan wiring is loose.
2. Fan hardware abnormal
Checkthe fan and connection
13
ACfuse open Fuse blown
Contact the supplier.
14
EEPROM fault EEPROM chipdamages.
Contact the supplier.
21
Overload
The loadsexceedthe rated
power.
Checkthe load.
22
3times
consecutive
overload locks
3times consecutive overload
locks
Shut downandrestart UPS.
23
EPO action
Press EPO button.
1. Release EPO button.
2. Checkthe wiring harness on EPO
button.
24
Maintenance
switch action
The maintenance switch is
pressed.
Release maintenance switch.
