Frequency Conversion Mode_ Dual Input_ Single Unit - Delta Modulon DPH Series User Manual

3.2.6 Frequency Conversion Mode_ Dual Input_ Single Unit

To activate Frequency Conversion mode, please refer to 6.2.6 Frequency Conversion
Mode Start-up Procedures, 7.6 Main Screen and 7.10.2 Mode Setting.
After the UPS is manually set in Frequency Conversion mode, the inverter will automatically
the system will automatically disable the bypass function. Please note that, once the
inverter shuts down, there is no bypass output. For the diagram of Frequency Conversion
mode, please see Figure 3-20. During Frequency Conversion mode, the UPS's tri-color
LED illuminates green and the text 'Frequency Conversion' appears in the upper right
corner of the screen.
BYPA.
MAIN
Batteries
(Figure 3-20: Frequency Conversion Mode Diagram_ Dual Input Single Unit)
Modulon DPH Series
NOTE:
1. Frequency Conversion mode is only applicable to single UPS but not to parallel
UPSs.
2. When the UPS runs in Frequency Conversion mode, once the inverter becomes
Q3
Q2
Q1
Q5
Static Switch
Rectifier Inverter
3-20
LOAD
Q4