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protect the devices or save data. Otherwise, there is a risk of data loss or power failure.
2) In Battery mode, if buzzer sound annoys, users can press the Mute button to mute 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 limit for 16.5 hours (default value from LCD panel), after maximum
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 3-6 LCD
setting section)
6. 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 2s, 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 LCD panel and UPS is
complete off.
7. Turn off the UPS without utility power supply in Battery mode
1) Turn off the UPS by pressing “OFF” button for at least 2s, 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.
8. Mute the buzzer
1) To mute the buzzer, please press the “Mute” button for at least 1s. 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.
9. 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 fault code 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.
10. 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.
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