Delta Modulon DPH 200kVA, User Manual, Page: 58 / 232

3-32
Modulon DPH Series
3.2.14 Green Mode_ Dual Input_ Parallel Units
To activate green mode, please refer to
6.2.7 Green Mode Start-up Procedures
,
7.6 Main
Screen
and
7.10.2 Mode Setting
.
For parallel application, green mode is the same as online mode, but the difference is that
each system will automatically detect its UPS’s output status (i.e. total load capacity %) to
decide which specific power modules should be fully powered on or idle in order to achieve
higher efficiency of the UPS. During green mode, each UPS’s tri-color LED illuminates green
and each UPS’s LCD shows the text
‘Green’ in the upper right corner. Please see
Figure
3-31
for the path of electrical power through the parallel UPSs in green mode.
MAIN
LOAD
BYPA.
MAIN
BYPA.
1
2
Q0 Q2
Q0 Q2
Q1 Q4
Q3
UPS
Q1 Q4
Q3
UPS
Q5
Q5
Delta or non-Delta External Maintenance Bypass Cabinet
Batteries
Rectifier Inverter
Static Switch
Delta or non-Delta External Maintenance Bypass Cabinet
Batteries
Rectifier Inverter
Static Switch
(Figure 3-31: Green Mode Diagram_ Dual Input Parallel Units)