Chapter 3: Operation Modes; On-Line Mode - Delta Modulon DPH Series User Manual

Chapter 3: Operation Modes

The UPS runs in eight basic operation modes, which are On-Line mode, Battery mode,
Bypass mode, Manual Bypass mode, ECO mode, Frequency Conversion mode, Green
Mode and Energy Recycle Mode.
NOTE:
1. In this user manual, Q1, Q2, Q3, Q4 and Q5 represent the following.
Code
Q1
Q2
Q3
Q4
Q5
2. To enable the following operation modes, please refer to
7. LCD Display & Settings
&
3.1

On-Line Mode

In On-Line mode, the main AC source supplies AC power via the Input Switch (Q1) to
the rectifier, and the rectifier converts the AC power to DC power and supplies the DC
power to the inverter. In the meantime, the rectifier provides charging power to the
batteries. After receiving the DC power, the inverter converts it into clean and stable
AC power to the connected critical loads via the Output Switch (Q4). During On-Line
mode, the UPS's tri-color LED illuminates green and the text 'On-Line' appears in the
upper right corner of the LCD screen.
Bypass
MAIN
Batteries
Input Switch.
Bypass Switch.
Manual Bypass Switch.
Output Switch.
External Battery Cabinet's Breaker.
.
Rectifier
Figure 3-1: On-Line Mode Diagram
Meaning
Static Switch
Inverter
6. UPS Operation
LOAD
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