Delta DPH-600K, User Manual

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3 Operation Modes
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
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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
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for the On-Line
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.
MAIN LOAD
BYPA.
Q1
Q2
Q4
Q3
Batteries
Rectifier Inverter
Static Switch
Q5
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