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transfer the load from the inverter supply to bypass supply without interruption to the critical load. In
the event that the inverter output is not synchronized with the bypass AC source, the static switch will
perform a transfer of the load from the inverter to the bypass with power interruption to the critical AC
load. This is to avoid paralleling of unsynchronized AC sources. This interruption is programmable but
typically set to be less than an electrical cycle e.g. less than 15ms (50Hz) or less than 13.33ms
(60Hz).
◆ECO Mode
When the UPS is at AC Mode and the requirement to the load is not critical, the UPS can be set
at ECO mode in order to increase the efficiency of the power supplied. At ECO mode, the UPS
works at Line-interactive mode, so the UPS will transfer to bypass supply. When the AC is out of
set window, the UPS will transfer from bypass to Inverter and supplies power from the battery, and
then the LCD shows all related information on the screen.
◆Maintenance mode (Manual Bypass)
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