3-6
Ultron DPS Series
3.5 ECO Mode
You can only use ECO mode for a single unit but not for parallel units. Please refer to 8.4
Main Screen and 8.7.2 Output Setup.
LOAD
BYPA.
MAIN
Q3 Switch
Q2 Switch
Q1 Switch
Rectifier Inverter
Circuit
Breaker
Batteries
STS
Q4 Switch
(Figure 3-5: Path of Electrical Power through the Single UPS in ECO Mode)
In ECO mode, when bypass AC source’s input voltage and frequency are within the range
of rating voltage ±10% and rating frequency ±5Hz, the UPS works in bypass mode and
LEDs illuminate as follows.
Fault
Otherwise, the UPS will work in normal mode. Under these circumstances, LEDs illuminate
as follows.
Fault
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