14
2) Some warning alarms
can’t be muted unless the error is fixed. Please refer to section 3-3 for the
details.
10. Operation in warning status
1) When Fault LED flashes and the buzzer beeps once every second, it means that there are some
problems for UPS operation. Users can get the warning indicator from LCD panel. Please check the
trouble shooting table in chapter 4 for details.
2) Some warning alarms
can’t be muted unless the error is fixed. Please refer to section 3-3 for the
details.
11. Operation in Fault mode
1) When Fault LED illuminates and the buzzer beeps continuously, it means that there is a fatal error in
the UPS. Users can get the fault code from display panel. Please check the trouble shooting table in
chapter 4 for details.
2) Please check the loads, wiring, ventilation, utilit
y, battery and so on after the fault occurs. Don’t try to
turn on the UPS again before solving the problems. If the problems can’t be fixed, please contact the
distributor or service people immediately.
3) For emergency case, please cut off the connection from utility, external battery, and output
immediately to avoid more risk or danger.
12. Operation of changing battery numbers
1) This operation is only available for professional or qualified technicians.
2) Turn off the UPS. If the load couldn’t be cut off, you should remove the cover of maintenance bypass
switch on the rear panel and turn the maintenance switch to “BPS” position first.
3) Switch off the line input breaker(for dual input unit, also switch off the bypass input breaker), and
switch off the battery breaker (only available for long-run model).
4) Remove the cabinet cover, and disconnect battery wire for standard model. Then modify the jumper of
JS3 on the control board to set the battery numbers as following table.
Battery Number in
series
JS3
pin1 & pin2
pin3 & pin4
Pin5 & pin6
pin7 & pin8
18
1
0
0
X
19
0
1
0
X
20
0
0
1
X
Note:1 = connect with jumper; 0 = no jumper; x = the pins are for other functions.
5)
Modify the battery pack for the setting number carefully. After complete it, put the cover back, switch
on the battery breaker for long-run model.
6) Switch on the line input breaker(for dual input unit, also switch on the bypass input breaker) and the
UPS will enter Bypass mode. If the UPS is in maintenance Bypass mode, turn the maintenance switch
to “UPS” position and then turn on the UPS.
13. Changing Input Voltage Range through OVCD Board
There is a three-phase OVCD board installed between input breaker and IP EMI board. When any
over-voltage or under voltage occurs on input of any phase, three-phase OVCD relay will cut off the input
power to protect the UPS. The input voltage range can be set up through JP16/JP19 on the OVCD board
as below table.