User Manual MASTER SERIES
3/1 10K~30K Online UPS
Uninterruptible Power Supply System
3. Operations
3-1. Button Operation
3-2. LED Indicators and LCD Panel
LCD Panel:
3-3. Audible Alarm
3-4. Single UPS Operation
1. Turn on the UPS with utility power supply in AC mode
1) After power supply is connected correctly, set the breaker of the battery pack at
“ON” position (the step only available for long-run model). Then set the input
breaker at “ON” position. At this time the fan is running and the UPS enter to power
on mode for initialization, several seconds later, UPS operates in Bypass mode and
supplies power to the loads via the bypass.
NOTE: When UPS is in Bypass mode, the output voltage will directly power from
utility after you switch on the input breaker. In Bypass mode, the load is not
protected by UPS. To protect your precious devices, you should turn on the
UPS. Refer to next step.
2) Press and hold the “ON” button for 0.5s to turn on the UPS and the buzzer will beep
once.
3) A few seconds later, the UPS will enter to AC mode. If the utility power is
abnormal, the UPS will operate in Battery mode without interruption.
NOTE: When the UPS is running out battery, it will shut down automatically at
Battery mode. When the utility power is restored, the UPS will auto restart
in AC mode.
2. Turn on the UPS without utility power supply in Battery
mode
1) Make sure that the breaker of the battery pack is at “ON” position (only for long-run
model).
2) Press the “ON” button to set up the power supply for the UPS, UPS will enter to
power on mode. After initialization UPS will enter to No Output mode, then Press
and hold the “ON” button for 0.5s to turn on the UPS, and the buzzer will beep
once.
3) A few seconds later, the UPS will be turned on and enter to Battery mode.
3. Connect devices to UPS
After the UPS is turned on, you can connect devices to the UPS.
1) Turn on the UPS first and then switch on the devices one by one, the LCD panel
will display total load level.
2) If it is necessary to connect the inductive loads such as a printer, the in-rush
current should be calculated carefully to see if it meets the capacity of the UPS,
because the power consumption of this kind of loads is too big.
3) If the UPS is overload, the buzzer will beep twice every second.
4) When the UPS is overload, please remove some loads immediately. It is recommen
ded to have the total loads connected to the UPS less than 80% of its nominal
power capacity to prevent overload for system safety.
5) If the overload time is over acceptable time listed in spec at AC mode, the UPS
will automatically transfer to Bypass mode. After the overload is removed, it will
return to AC mode. If the overload time is over acceptable time listed in spec at
Battery mode, the UPS will become fault status. At this time, if bypass is enabled,
the UPS will power to the load via bypass. If bypass function is disabled or the
input power is not within bypass acceptable range, it will cut off output directly.
4. Charge the batteries
1) After the UPS is connected to the utility power, the charger will charge the
batteries automatically except in Battery mode or during battery self-test.
2) Suggest to charge batteries at least 10 hours before use. Otherwise, the backup
time may be shorter than expected time.
3) Make sure the battery numbers setting on the control board (Please refer to the
section 3-4-12 for detailed setting) is consistent to real connection.
5. Battery mode operation
1) When the UPS is in Battery mode, the buzzer will beep according to different
battery capacity. If the battery capacity is more than 25%, the buzzer will beep
once every 4 seconds; If the battery voltage drops to the alarm level, the buzzer
will beep quickly (once every sec) to remind users that the battery is at low level
and the UPS will shut down automatically soon. Users could switch off some
non-critical loads to disable the shutdown alarm and prolong the backup time (the
UPS would cut off the programmable output terminal automatically when the
programmable timer function is enabled). If there is no more load to be switched
off at that time, you have to shut down all loads as soon as possible to protect the
devices or save data. Otherwise, there is a risk of data loss or load failure.
2) In Battery mode, if buzzer sound annoys, users can press the Mute button to disable
the buzzer.
3) The backup time of the long-run model depends on the external battery capacity.
4) The backup time may vary from different environment temperature and load type.
5) When setting backup time for 16.5 hours (default value from LCD panel), after
discharging 16.5 hours, UPS will shut down automatically to protect the battery.
This battery discharge protection can be enabled or disabled through LCD panel
control. (Refer to 3-7 LCD setting section) .
6. Test the batteries
1) If you need to check the battery status when the UPS is running in AC mode/CVCF
mode/ECO mode, you could press the “Test” button to let the UPS do battery
self-test.
2) Users also can set battery self-test through monitoring software.
7. Turn off the UPS with utility power supply in AC mode
1) Turn off the inverter of the UPS by pressing “OFF” button for at least 0.5s, and
then the buzzer will beep once. The UPS will turn into Bypass mode.
NOTE 1: If the UPS has been set to enable the bypass output, it will bypass voltage
from utility power to output sockets and terminal even though you have
turned off the UPS (inverter).
NOTE 2: After turning off the UPS, please be aware that the UPS is working at
Bypass mode and there is risk of power loss for connected devices.
2) In Bypass mode, output voltage of the UPS is still present. In order to cut off the
output, switch off. the input breaker. A few seconds later, there is no display
shown on the display panel and UPS is complete off.
8. Turn off the UPS without utility power supply in Battery
mode
1) Turn off the UPS by pressing “OFF” button for at least 0.5s, and then the buzzer will
beep once.
2) Then UPS will cut off power to output and there is no display shown on the display
panel.
9. Mute the buzzer
1) To mute the buzzer, please press the “Mute” button for at least 0.5s. If you press it
again after the buzzer is muted, the buzzer will beep again.
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, utility, 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 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.
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 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.
3-5. Parallel Operation
1. Parallel system initial startup
First of all, please make sure all of the UPSs are parallel models and have the same
configuration.
(Refer to Program 16, section 3-7) in LCD setting to make sure the error between
real output voltage and detected value of UPS is less than 1V.
3) Turn off each UPS (Refer to section 3-4(7.)). Then, follow the wiring procedure in
section 2-4.
4) Remove the cover of parallel share current cable port on the UPS, connect each UPS
one by one with the parallel cable and share current cable, and then screw the
cover back.
5) Turn on the parallel system in AC mode :
a) Turn on the input breaker of each UPS. After all UPSs enter to bypass mode,
measure the voltage between output L1 of each UPS and output L2 of each UPS.
If these two voltage differences are all less than 1V, that means all connections
are correct. Otherwise, please check if the wirings are connected correctly.
b) Turn on the output breaker of each UPS.
c) Turn on each UPS in turns. After a while, the UPSs will enter to AC mode
synchronously and then, the parallel system is completed.
6) Turn on the parallel system in Battery mode :
a) Turn on the battery breaker (only available in long-run model) and output breaker
of each UPS. NOTE : It’s not allowed to share one battery pack for long-run UPSs
in parallel system. Each UPS should be connected to its battery pack.
b) Turn on any UPS. A few seconds later, the UPS will enter to battery mode.
c) Then, turn on another UPS. A few seconds later, the UPS will enter to battery
mode and add to the parallel system.
d) If you have the third UPS, follow the same procedure of c). Then, the parallel
system is complete.
If more detailed information is needed, please contact supplier or service center for parallel operation instruction.
2. Add one new unit into the parallel system
1) You can not add one new unit into the parallel system when whole system is running.
You must cut off the load and shutdown the system.
2) Make sure all of the UPS are the parallel models, and follow the wiring refer to
section 2-4.
3) Install the new parallel system refers to the previous section.
3. Remove one unit from the parallel system
There are two methods to remove one unit from the parallel system:
First method:
1) Press the “OFF” key twice and each time should be lasted for more than 0.5s. Then,
the UPS will enter into bypass mode or no output mode without output.
2) Turn off the output breaker of this unit, and then turn off the input breaker of this
unit.
3) After it shuts down, you can turn off the battery breaker (for long-run model) and
remove the parallel and share current cables. And then remove the unit from the
parallel system.
Second method:
1) If the bypass is abnormal, you can not remove the UPS without interruption. You
must cut off the load and shut down the system first.
2) Make sure the bypass setting is enabled in each UPS and then turn off the running
system. All UPSs will transfer to Bypass mode. Remove all the maintenance bypass
covers and set the maintenance switches from “UPS” to “BPS”. Turn off all the input
breakers and battery breakers in parallel system.
3) Turn off the output breaker and remove the parallel cable and share current cable of
the UPS which you want to remove. Then, remove it from parallel system.
4) Turn on the input breaker of the remaining UPS and the system will transfer to
Bypass mode. Set the maintenance switches from “BPS” to “UPS and put the
maintenance bypass covers back.
5) Turn on the remaining UPS according to the previous section. Warning :
● Before turning on the parallel system to activate inverter, make sure that all
unit’s maintenance switch at the same position.
● When parallel system is turned on to work through inverter, please do not
operate the maintenance switch of any unit.
3/1 10K~30K Online UPS
Uninterruptible Power Supply System
3. Operations
3-1. Button Operation
3-2. LED Indicators and LCD Panel
LCD Panel:
3-4. Single UPS Operation
1. Turn on the UPS with utility power supply in AC mode
1) After power supply is connected correctly, set the breaker of the battery pack at
“ON” position (the step only available for long-run model). Then set the input
breaker at “ON” position. At this time the fan is running and the UPS enter to power
on mode for initialization, several seconds later, UPS operates in Bypass mode and
supplies power to the loads via the bypass.
NOTE: When UPS is in Bypass mode, the output voltage will directly power from
utility after you switch on the input breaker. In Bypass mode, the load is not
protected by UPS. To protect your precious devices, you should turn on the
UPS. Refer to next step.
2) Press and hold the “ON” button for 0.5s to turn on the UPS and the buzzer will beep
once.
3) A few seconds later, the UPS will enter to AC mode. If the utility power is
abnormal, the UPS will operate in Battery mode without interruption.
NOTE: When the UPS is running out battery, it will shut down automatically at
Battery mode. When the utility power is restored, the UPS will auto restart
in AC mode.
2. Turn on the UPS without utility power supply in Battery
mode
1) Make sure that the breaker of the battery pack is at “ON” position (only for long-run
model).
2) Press the “ON” button to set up the power supply for the UPS, UPS will enter to
power on mode. After initialization UPS will enter to No Output mode, then Press
and hold the “ON” button for 0.5s to turn on the UPS, and the buzzer will beep
once.
3) A few seconds later, the UPS will be turned on and enter to Battery mode.
3. Connect devices to UPS
After the UPS is turned on, you can connect devices to the UPS.
1) Turn on the UPS first and then switch on the devices one by one, the LCD panel
will display total load level.
2) If it is necessary to connect the inductive loads such as a printer, the in-rush
current should be calculated carefully to see if it meets the capacity of the UPS,
because the power consumption of this kind of loads is too big.
3) If the UPS is overload, the buzzer will beep twice every second.
4) When the UPS is overload, please remove some loads immediately. It is recommen
ded to have the total loads connected to the UPS less than 80% of its nominal
power capacity to prevent overload for system safety.
5) If the overload time is over acceptable time listed in spec at AC mode, the UPS
will automatically transfer to Bypass mode. After the overload is removed, it will
return to AC mode. If the overload time is over acceptable time listed in spec at
Battery mode, the UPS will become fault status. At this time, if bypass is enabled,
the UPS will power to the load via bypass. If bypass function is disabled or the
input power is not within bypass acceptable range, it will cut off output directly.
4. Charge the batteries
1) After the UPS is connected to the utility power, the charger will charge the
batteries automatically except in Battery mode or during battery self-test.
2) Suggest to charge batteries at least 10 hours before use. Otherwise, the backup
time may be shorter than expected time.
3) Make sure the battery numbers setting on the control board (Please refer to the
section 3-4-12 for detailed setting) is consistent to real connection.
5. Battery mode operation
1) When the UPS is in Battery mode, the buzzer will beep according to different
battery capacity. If the battery capacity is more than 25%, the buzzer will beep
once every 4 seconds; If the battery voltage drops to the alarm level, the buzzer
will beep quickly (once every sec) to remind users that the battery is at low level
and the UPS will shut down automatically soon. Users could switch off some
non-critical loads to disable the shutdown alarm and prolong the backup time (the
UPS would cut off the programmable output terminal automatically when the
programmable timer function is enabled). If there is no more load to be switched
off at that time, you have to shut down all loads as soon as possible to protect the
devices or save data. Otherwise, there is a risk of data loss or load failure.
2) In Battery mode, if buzzer sound annoys, users can press the Mute button to disable
the buzzer.
3) The backup time of the long-run model depends on the external battery capacity.
4) The backup time may vary from different environment temperature and load type.
5) When setting backup time for 16.5 hours (default value from LCD panel), after
discharging 16.5 hours, UPS will shut down automatically to protect the battery.
This battery discharge protection can be enabled or disabled through LCD panel
control. (Refer to 3-7 LCD setting section) .
6. Test the batteries
1) If you need to check the battery status when the UPS is running in AC mode/CVCF
mode/ECO mode, you could press the “Test” button to let the UPS do battery
self-test.
2) Users also can set battery self-test through monitoring software.
7. Turn off the UPS with utility power supply in AC mode
1) Turn off the inverter of the UPS by pressing “OFF” button for at least 0.5s, and
then the buzzer will beep once. The UPS will turn into Bypass mode.
NOTE 1: If the UPS has been set to enable the bypass output, it will bypass voltage
from utility power to output sockets and terminal even though you have
turned off the UPS (inverter).
NOTE 2: After turning off the UPS, please be aware that the UPS is working at
Bypass mode and there is risk of power loss for connected devices.
2) In Bypass mode, output voltage of the UPS is still present. In order to cut off the
output, switch off. the input breaker. A few seconds later, there is no display
shown on the display panel and UPS is complete off.
8. Turn off the UPS without utility power supply in Battery
mode
1) Turn off the UPS by pressing “OFF” button for at least 0.5s, and then the buzzer will
beep once.
2) Then UPS will cut off power to output and there is no display shown on the display
panel.
9. Mute the buzzer
1) To mute the buzzer, please press the “Mute” button for at least 0.5s. If you press it
again after the buzzer is muted, the buzzer will beep again.
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, utility, 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 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.
the cover back, switch on the battery breaker for long-run model.
6) Switch on the 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.
3-5. Parallel Operation
1. Parallel system initial startup
First of all, please make sure all of the UPSs are parallel models and have the same
configuration.
1) Turn on each UPS to AC mode respectively (Refer to section 3-4(1)). Then, measure
the output voltage of each UPS to check if the voltage difference between actual
output and setting value is less than 1.5V (typical 1V) with multimeter. If the
difference is more than 1.5V, please calibrate the voltage by configuring inverter
voltage adjustment (Refer to Program 15, section 3-7) in LCD setting. If voltage
difference remains more than 1.5V after calibration, please contact your local
distributor or service center for help.
2) Calibrate the output voltage measurement by configuring output voltage calibration (Refer to Program 16, section 3-7) in LCD setting to make sure the error between
real output voltage and detected value of UPS is less than 1V.
3) Turn off each UPS (Refer to section 3-4(7.)). Then, follow the wiring procedure in
section 2-4.
4) Remove the cover of parallel share current cable port on the UPS, connect each UPS
one by one with the parallel cable and share current cable, and then screw the
cover back.
5) Turn on the parallel system in AC mode :
a) Turn on the input breaker of each UPS. After all UPSs enter to bypass mode,
measure the voltage between output L1 of each UPS and output L2 of each UPS.
If these two voltage differences are all less than 1V, that means all connections
are correct. Otherwise, please check if the wirings are connected correctly.
b) Turn on the output breaker of each UPS.
c) Turn on each UPS in turns. After a while, the UPSs will enter to AC mode
synchronously and then, the parallel system is completed.
6) Turn on the parallel system in Battery mode :
a) Turn on the battery breaker (only available in long-run model) and output breaker
of each UPS. NOTE : It’s not allowed to share one battery pack for long-run UPSs
in parallel system. Each UPS should be connected to its battery pack.
b) Turn on any UPS. A few seconds later, the UPS will enter to battery mode.
c) Then, turn on another UPS. A few seconds later, the UPS will enter to battery
mode and add to the parallel system.
d) If you have the third UPS, follow the same procedure of c). Then, the parallel
system is complete.
If more detailed information is needed, please contact supplier or service center for parallel operation instruction.
2. Add one new unit into the parallel system
1) You can not add one new unit into the parallel system when whole system is running.
You must cut off the load and shutdown the system.
2) Make sure all of the UPS are the parallel models, and follow the wiring refer to
section 2-4.
3) Install the new parallel system refers to the previous section.
3. Remove one unit from the parallel system
There are two methods to remove one unit from the parallel system:
First method:
1) Press the “OFF” key twice and each time should be lasted for more than 0.5s. Then,
the UPS will enter into bypass mode or no output mode without output.
2) Turn off the output breaker of this unit, and then turn off the input breaker of this
unit.
3) After it shuts down, you can turn off the battery breaker (for long-run model) and
remove the parallel and share current cables. And then remove the unit from the
parallel system.
Second method:
1) If the bypass is abnormal, you can not remove the UPS without interruption. You
must cut off the load and shut down the system first.
2) Make sure the bypass setting is enabled in each UPS and then turn off the running
system. All UPSs will transfer to Bypass mode. Remove all the maintenance bypass
covers and set the maintenance switches from “UPS” to “BPS”. Turn off all the input
breakers and battery breakers in parallel system.
3) Turn off the output breaker and remove the parallel cable and share current cable of
the UPS which you want to remove. Then, remove it from parallel system.
4) Turn on the input breaker of the remaining UPS and the system will transfer to
Bypass mode. Set the maintenance switches from “BPS” to “UPS and put the
maintenance bypass covers back.
5) Turn on the remaining UPS according to the previous section. Warning :
● Before turning on the parallel system to activate inverter, make sure that all
unit’s maintenance switch at the same position.
● When parallel system is turned on to work through inverter, please do not
operate the maintenance switch of any unit.
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