Delta Ultron HPH series User Manual

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Operation Modes
3.2.2 Battery Mode_ Dual Input_ Single Unit
The UPS transfers to battery mode automatically if the main AC source cannot supply
power, for example, when unstable voltage or a power outage occurs. In battery mode,
the batteries provide DC power and the UPS converts it into AC power and supplies it to
the connected critical loads via the Output Switch (Q4). During the conversion process,
output voltage remains the same. Please see Figure 3-17 for battery mode diagram. During
battery mode, the UPS’s tri-color LED illuminates yellow and the text ‘Battery’ appears in
the upper right corner of the screen.
MAIN LOAD
BYPA.
Q1
Q2
Q4
Q3
Batteries
Rectifier Inverter
Static Switch
Q5
(Figure 3-17: Battery Mode Diagram_ Dual Input Single Unit)
3.2.3 Bypass Mode_ Dual Input_ Single Unit
When the inverter encounters abnormal situations such as over temperature, overload,
short circuit, abnormal output voltage or low battery, it will automatically shut itself down.
If the UPS detects the bypass AC source is normal, it will automatically switch to bypass
mode to protect the connected critical loads from power interruption. Please refer to Figure
3-18. After the above-mentioned abnormalities are eliminated, the UPS will switch back to
online mode from bypass mode. During bypass mode, the UPS’s tri-color LED illuminates
yellow and the text ‘Bypass’ appears in the upper right corner of the screen.
MAIN LOAD
BYPA.
Q1
Q2
Q4
Q3
Batteries
Rectifier Inverter
Static Switch
Q5
(Figure 3-18: Bypass Mode Diagram_ Dual Input Single Unit)

Delta Ultron HPH series Specifications

General

Brand	Delta
Model	Ultron HPH series
Category	UPS
Language	English