3-21
3
Operation Modes
3.2.5 ECO Mode_ Dual Input_ Single Unit
To activate ECO mode, please refer to 6.2.5 ECO Mode Start-up Procedures, 7.6 Main
Screen and 7.10.2 Mode Setting.
In ECO mode, when the bypass AC source’s input voltage and frequency are within the
range of rating voltage ±10% and rating frequency ±3Hz, the UPS works in bypass mode;
otherwise, the UPS runs in online mode. For ECO mode diagram, please see Figure 3-20.
During ECO mode, the UPS’s tri-color LED illuminates green and the text ‘ECO’ appears in
the upper right corner of the screen.
(Figure 3-20: ECO Mode Diagram_ Dual Input Single Unit)
MAIN LOAD
BYPA.
Q1
Q2
Q4
Q3
Batteries
Rectifier Inverter
Static Switch
Q5