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UPS OPERATION
Operating modes
The UPS can be configured for different operating modes. The following operating modes as listed below may be
selected.
ON LINE MODE
When in ON LINE mode, the system operates in ON LINE double conversion. This mode provides maximum
protection for the load. During operation the energy coming from the mains power supply (AC), is converted into a
clean and stable output.
The voltage supplied to the load is a perfect sinewave, with the frequency and voltage independent of the incoming
mains supply (VFI technology). During this mode, the batteries are constantly maintained under charge.
ECO MODE
In order to optimise efficiency, in ECO MODE, the load is normally powered via the bypass (any disturbances that
occur within the mains power supply can affect the load). In the event of a mains power supply failure or if the
power supply is not within the pre-set tolerances, the UPS will seamlessly switch to ON LINE operation
automatically. Approximately five minutes after the power supply returns within tolerance, the load is switched back
to bypass.
SMART ACTIVE MODE
The UPS may be set in SMART ACTIVE mode during which, according to the statistical data of the quality of the
mains power supply, the UPS will autonomously decide the most appropriate operating mode between ON LINE
and ECO MODE.
FREQUENCY CONVERTER MODE
The system can be configured in this mode to generate a fixed output frequency different from the input frequency.
This configuration automatically disables the bypass line. FREQUENCY CONVERTER mode can be operated with
and without connected batteries.
WARNING:
Do NOT switch on the SWMB (manual bypass switch) when the UPS is in FREQUENCY CONVERTER
mode.
To prevent maintenance bypass operation, the user shall lock the SWMB switch handle. To first configure this
operating mode, open the SWOUT (Output switch).
STAND BY OFF MODE
The UPS is set to operate only in an emergency: when the mains power is present, the load is not powered and the
battery remains charged; in the event of a mains supply failure, the load is powered by the inverter from the
batteries, and is then powered off once the mains supply returns. The activation time is less than 0.5 sec. When the
mains supply returns, the output is powered off after a certain period of time (configurable) has passed. In default
configuration, if the mains returns, the output is immediately powered off (default time 0s).
