Dual Input; On-Line Mode_ Dual Input_ Single Unit - Delta Modulon DPH Series User Manual

3.2

Dual Input

3.2.1 On-Line Mode_ Dual Input_ Single Unit

In On-Line mode, the main AC source supplies AC power via the Input Switch (Q1) to the
to the inverter. In the meantime, the rectifier provides charging power to the batteries.
After receiving the DC power, the inverter converts it into clean and stable AC power to the
connected critical loads via the Output Switch (Q4). Please see
mode diagram. During On-Line mode, the UPS's tri-color LED illuminates green and the
text 'On-Line' appears in the upper right corner of the screen.
BYPA.
MAIN
Batteries
Q3
Static Switch
Q2
Rectifier
Q1
Q5
3-15
Inverter
Q4
3 Operation Modes
for the On-Line
LOAD