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4Use and Operation User Manual
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Rack setting
Tower display setting
Tower display setting page: when the UPS has been set to rack display mode and it needs to set to
tower display mode, enter this setting page,
TWR
flickers. If you confirm the setting, press (ON)
button more than 1s, exit the setting page, the setting succeeds. If you do not confirm the setting, 20s
later, it will exit the setting page automatically. Corresponding LCD display is as shown
in2032624074.26.264318872 . .
Tower setting
4.8 Troubleshooting
4.8.1 Common Fault
As shown in 2032624074.26.264318872 . , it only includes some common fault diagnosis. If any doubt,
contact the local office or distributor for details.
Troubleshooting
Fault phenomenon Possible reason
The mains normal, after starting
the UPS, it outputs normally,
but it works in the battery mode
and the buzzer beeps
intermittently.
1. Check if the contactors and wiring terminals in the input
circuit are in good condition;
2. Check if the displayed input voltage amplitude or frequency
of mains on the LCD is beyond the allowable range of
UPS;