Delta Modulon DPH Series User Manual page 55

3.2.12 ECO Mode_ Dual Input_ Parallel Units
To activate ECO mode, please refer to
and
In ECO mode (parallel), when each parallel UPS's bypass input voltage and frequency
are within the range of rating voltage ±10% and rating frequency ±3Hz, each parallel UPS
works in Bypass mode; otherwise, each parallel UPS runs in On-Line mode. During ECO
mode (parallel), each UPS's tri-color LED illuminates green and each UPS's LCD shows the
text 'ECO' in the upper right corner. Please see
through the parallel UPSs in ECO mode.
1
BYPA.
MAIN
Batteries
2
BYPA.
MAIN
Batteries
.
Q3
Static Switch
Q2
Rectifier
Q1
Q5
Q3
Static Switch
Q2
Rectifier
Q1
Q5
3-27
for the path of electrical power
Inverter
Q4
Inverter
Q4
3 Operation Modes
,
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