Single Input; On-Line Mode_ Single Input_ Single Unit - Delta Modulon DPH Series User Manual

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. Besides these eight operation modes, the UPS is also designed for common battery
application and hot standby redundancy. Please see the following sections for relevant information.
NOTE:
1. In this user manual, the meaning of Q1, Q2, Q3, Q4 and Q5 represents the following.
2. Up to eight UPS units can be paralleled for redundancy and capacity expansion.
Only UPSs with the same capacity, voltage, frequency, version and serial No. can be
paralleled. For version and serial No. information, please refer to 7.11.7 Version & S/N.
Please only use the provided parallel cable to parallel the UPS units. Otherwise, parallel
functions will fail.
3.1

Single Input

3.1.1 On-Line Mode_ Single Input_ Single Unit

In On-Line mode, the main AC source supplies AC power via the Input Switch (Q1) to the
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). Please refer to Figure 3-1. 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 screen.
Modulon DPH Series
Code
Q1
Q2
Q3
Q4
Q5
Meaning
Input Switch
Bypass Switch
Manual Bypass Switch
Output Switch
External Battery Cabinet's Breaker
3-2