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Maintenance mode
5.5 Fault mode
The LED indications during the operation in fault mode are shown in the figure below: All the LED
indicators go out, and the fault icons and codes show up in the LCD display area at the same time.
When UPS breaks down, the buzzer gives out long beep. According to the fault type, the fault mode
is divided into breaker output fault and bypass output fault.
Output cutoff fault under the following circumstances:
Output short circuit fault;
150% overload in bypass mode, lasting for 1min; or 200% overload in bypass mode, lasting
for 200ms;
Set as EPO breaker output fault;
Bypass SCR fault in bypass mode.
For the faults not included in the above circumstances, keep providing power supply for the loads
through bypass.
After UPS enters the fault mode, users can press the mute button for noise reduction (mute setting
automatically cancels after one day). Furthermore, contact the after-sales personnel for fault
elimination, and make further treatment to the scene under the guidance of after-sales personnel.
Operating diagram for the fault mode of bypass output
When the UPS fails, the LCD displays “FAULT”, the alarm Icon flashes, and the fault alarm interface
displays fault / alarm information code, at the same time the buzzer gives out alarm sound.
Summary of Contents for 6KVA
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