Qoltec 53923 User Manual - page 8
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Figure 4-3 Battery Mode
2) When the battery capacity decreases, the number of load/battery capacity indicators turned on will decrease. If the battery voltage drops
to the pre-alarm level (capable of maintaining the backup time for more than 2 minutes), the alarm will beep every second to remind the
user of insufficient battery capacity.
3) The other four display pages are load percent page, actual load page, battery information page and the maximum temperature page.
4.2.3 Bypass mode
When operating in bypass mode set up through UPSilon software, the display on the front panel is shown as the figure 4-4, the utility power
indicator and the bypass indicator are turn on. The load/battery capacity indicator will be turned on in accordance with the load capacity
connected. Load information area shows load value, and the battery level area indicates dynamically when the battery is not full charged (the
battery level icons lit one after another circularly). When the battery is full charged, all the level icons are turn on.
1) When operating in bypass mode, the UPS beeps every 2 minutes. If the “Function” key is pressed for more than 5 seconds, the alarm will
not beep (silence function). Press the “Function” key more than 5 seconds again to resume the alarm function.
2) If the utility power indicator blinks, it shows that the voltage or frequency of the utility power is out of the input range of the UPS or there
are problems with reversed polarity (L/N) of site wiring or disconnect to the ground for protection.
3) The other four display pages are load percent page, actual load page, input information page and the maximum temperature page.
Notes: When operating in bypass mode, the backup function of the UPS is not available and the power used by the load is directly from the utility
power via internal EMI filter.
Figure 4-4 Bypass Mode
4.2.4 LCD indication of UPS alarm status and faults
In the event of an UPS fault, UPS enters fault operation mode, at this point, the fault icon turn on consistently, the buzzer beeps continuously
and the data information area shows current fault code (refer to table 4-1), the display on the front panel is shown as the figure 4-5.
Figure 4-5 Fault display