Frequency Conversion Mode Start-Up Procedures - Delta Modulon DPH Series User Manual

6.2.6 Frequency Conversion Mode Start-up Procedures

1
Ensure that the Manual Bypass Switch (Q3) is in the OFF position.
2
Switch ON every external battery cabinet's breaker (Q5).
3
Switch ON the Input Switch (Q1), Bypass Switch (Q2) and Output Switch (Q4).
4
After you switch on the Input Switch (Q1) and Bypass Switch (Q2), each auxiliary
power card's LED indicator will illuminate green and the following status will occur
simultaneously.
(1) The system and each power module will start initialization. After each power
(2) Each parallel communication card's LED indicator will illuminate red first and
For the locations of the parallel communication cards, auxiliary power cards, power
modules and their LED indicators, please refer to
5
The LCD initial screen (see
Switch (Q1) and Bypass Switch (Q2) are turned on.
Modulon DPH Series
WARNING:
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
power module will start establishing DC BUS voltage and each power module's
LED indicator will illuminate green.
then each card will start initialization. After initialization, the master parallel
communication card's LED indicator will illuminate green and the backup
communication card's LED indicator will illuminate yellow.
) will appear within 40 seconds after the Input
6-22
.