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5.2 Turn on the UPS (Put the UPS in On-Line Mode)
When the input voltage is within the acceptable range press and hold the “ON/Mute” button for at least two sec-
onds. A few seconds later the UPS will turn on and enter on-line mode. “ONLINE” will be displayed in the UPS
status window on the LCD display. The UPS will provide pure and stable AC power to the output. The UPS will
also charge the batteries.
5.2.1 LCD Display in On-Line Mode
Rack Display
Tower Display
5.3
Connect Devices to the UPS
After the UPS has been turned on, devices (load) can now be connected to the UPS. For socket-type outputs, there
are two kinds of outputs: programmable outlets and general purpose outlets. Connect non-critical devices to the
programmable outlets and critical devices to the general outlets. During power failure, you may extend the backup
time to critical devices by enabling the programmable outlets (see Sections 4.2.5 and 4.2.6).
1)
With the UPS on-line switch on the load devices one by one. The LCD display panel will display
the load level by 0-25%, 26-50%, 51-75% and 76-100%.
2)
If the UPS is overloaded the audible alarm will beep twice every second and the LCD display panel
will display “OVERLOAD”.
3)
When the UPS is overloaded remove some load immediately.
4)
When the UPS is in on-line mode, and the overload time exceeds the duration listed in the specification,
the UPS will automatically transfer to bypass mode. At this time, if the bypass is enabled, the UPS will
supply power to the load via bypass. If the bypass function is disabled, or the input voltage is not within
the bypass acceptable range, the UPS will cutoff power to the load. After the overload is removed the UPS
will return to on-line mode.
5)
After repetitive overloads, the UPS will be locked in bypass mode. Remove excess loads from the UPS
output. Then restart the UPS.
