Delta HPH-100K, User Manual, Page: 22 / 80

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Ultron HPH Series UPS
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ECO Mode
You can manually set the UPS into ECO mode. In ECO mode, when the input voltage is within the
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indicator (
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and the NORMAL LED indicator ( ) illuminates (green).
(Figure 4-3: Path of Electrical Power through the UPS in ECO Mode)
BYPA.
MAIN
LOAD
Batteries
Rectifier Inverter
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Battery Mode
When the UPS is operating during a power outage, the batteries provide DC power, which
maintains inverter operation to support the critical load. During battery mode, the BATTERY LED
indicator ( ) illuminates (yellow).
(Figure 4-4: Path of Electrical Power through the UPS in Battery Mode)
BYPA.
MAIN
LOAD
Batteries
Rectifier Inverter