Delta DPH-300K, User Manual

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6 - 4 Modulon DPH Series
6.2 Start-up Procedures
6.2.1 On-Line Mode Start-up Procedures
WARNING:
1. For parallel units, please follow
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to turn on each parallel UPS. After confirming that parallel operation works
normally, follow the procedures below step by step.
2. For parallel units, ensure that every operation procedure mentioned below is
synchronized to all parallel UPSs.
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parallel ones, please contact service personnel.
1
Ensure that the Manual Bypass Breaker (Q3) is in the OFF position.
2
Switch ON every external battery cabinet’s breaker (Q5).
3
Switch ON the Input Breaker (Q1), Bypass Breaker (Q2) and Output Breaker (Q4).
4
After you switch on the Input Breaker (Q1) and Bypass Breaker (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
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power module will start establishing DC BUS voltage and each power module’s
LED indicator will illuminate green.
(2) Each parallel communication card’s LED indicator will illuminate red first and
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.
For the locations of the parallel communication cards, auxiliary power cards, power
modules and their LED indicators, please refer to
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.