Start-Up Procedures; On-Line Mode Start-Up Procedures - Delta Modulon DPH Series User Manual

• Pre Turn-off Warnings for Parallel Unit
1. If you want to turn off one of the parallel UPSs, please check whether the
remaining parallel units' total capacity exceeds the total critical loads. If the
remaining parallel units' total capacity is less than the total critical loads, all
parallel units will shut down due to overload.
2. If you perform turn-off procedures for all parallel UPSs, all power will be
completely cut off. Please make sure that the critical loads connected to the
parallel UPSs have already been safely shut down before you perform the turn-
off procedures.
6.2

Start-up Procedures

6.2.1

On-Line Mode Start-up Procedures

WARNING:
Before turning on the UPS, please read
Warnings
been followed.
Step 1
Ensure that the Manual Bypass Switch (Q3) is in the OFF position.
Step 2
Switch ON every external battery cabinet's breaker (Q5).
Step 3
Switch ON the Input Switch (Q1), Bypass Switch (Q2) and Output Switch (Q4).
Step 4
Tap the ON/ OFF Button (
Step 5
After the inverter turns on, the UPS will run in On-Line mode, the LCD screen will show
as below, and the tri-color LED indicator will illuminate green.
Delta UPS DPH 50-200kVA
thoroughly and ensure that the precautions and instructions have
) on the LCD screen.
6.1 Pre Start-up & Pre Turn-off
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