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Users cannot operate the components at the back of the protective cover plates, which can only
be opened by using tools.
Only qualified maintenance personnel can be allowed to open such protective cover plates.
Check the rear panel, so as to confirm that all the switches have been disconnected.
Close the mains and bypass switches. At this moment, the LCD display screen is lit up, and
the UPS is powered by the bypass mode.
Check whether the fault/alarm code in the fault interface on the display screen is “000”. If
not, refer to the fault code list and the alarm code list to eliminate the abnormalities. After
first startup or maintenance, check the setting interface first before startup, so as to
examine whether the set output voltage, output frequency, and other parameters meet the
requirements of customers.
After confirming that the UPS is fault-free, keep pressing the startup key combination (
+
) for more than 0.5s so that the UPS performs startup operation. In the meanwhile, the
rectifier and the inverter start running, and the inverter indicator (INV) blinks. Switch to UPS
inverter output after about 10s. Confirm the LED display status. As shown in the figure
below:
Close the output switch and the UPS external battery switch.
4.3.2 Manual bypass
When the UPS is under normal operation, manually switch the inverter power supply to the bypass
power supply. The manual bypass can be set at any moment, and also has memory function (the
manual bypass mode only needs to be set once, UPS will keep operating in manual bypass mode
after the setting comes into effect, and thus the UPS will automatically start up).
Please refer to the “4.2.2.4 Manual Bypass (nbp) Setting” for operating steps.
Caution:
When UPS operates in the bypass mode, if the voltage and frequency fluctuation
occur, or the power goes off, the loads will not be protected by UPS.
4.3.3 Maintenance bypass
Note: Please read the warning information given in the Chapter 1 carefully, and conduct bypass
maintenance with caution. Otherwise, it is likely to damage the UPS, or to cause load power failure,
even endanger personal safety.
4.3.3.1 Entering the maintenance bypass mode (Single unit)
Follow the operating steps below, so as to switch the UPS power supply protection status to the
status where the AC input bypass power supply is directly connected through the maintenance
Summary of Contents for 6KVA
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