3-22
Modulon DPH Series
MAIN LOAD
BYPA.
Q1 Q4
Q3
UPS
Q0Q2
Q5
Rectifier Inverter
Static Switch
Delta or non-Delta External Maintenance Bypass Cabinet
Batteries
(Figure 3-21: Manual Bypass Mode Diagram_ Dual Input Single Unit)
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 3-22.
During ECO mode, the UPS’s tri-color LED illuminates green and the text ‘ECO’ appears in
the upper right corner of the screen.
BYPA.
MAIN LOAD
Q1 Q4
Q3
UPS
Q0Q2
Q5
Rectifier Inverter
Static Switch
Delta or non-Delta External Maintenance Bypass Cabinet
Batteries
(Figure 3-22: ECO Mode Diagram_ Dual Input Single Unit)