Single Unit Operation Procedures; Normal Mode Start-Up Procedures (Single) - Delta DPH series User Manual

6.2

Single Unit Operation Procedures

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Pre Start-up Warnings for Single Unit
1. Please refer to 6.1 Pre-operation Warnings ¿UVW
2. Make sure all breakers of the UPS and the external battery cabinets are switched
OFF.
3. Make sure the voltage difference between the Neutral (N) and Ground (
4. Check if the wiring is correct. Make sure the AC power's voltage, frequency, phase
and battery type meet UPS requirements.
5. Check if the Control Module, the STS Module and all Power Modules (optional)
are properly installed and their latches are locked. If you install the rack-mount
PDC (optional; at maximum two) in the UPS, please ensure that the hot-swappable
breaker modules (optional) and hot-swappable control module are installed in the
rack-mount PDC, their latches are locked, and the rack-mount PDC wiring is correct.
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Pre Turn-off Warnings for Single Unit
If you perform turn-off procedures for single unit, all power supplies will be completely
cut off. Please make sure the critical loads connected to the UPS have already been
safely shutdown before you perform the turn-off procedures.

6.2.1 Normal Mode Start-up Procedures (Single)

1
Switch ON all external battery cabinets' breakers. Ensure that the Manual Bypass
Breaker (Q3) is OFF.
2
Switch ON the Bypass Breaker (Q2). After initialization, the fans of the STS Module
start running, and the BYPASS LED indicator lights up.
3
Turn ON the Output Breaker (Q4). The bypass supplies power to the output of the
UPS and the LCD shows the following screen.
Modulon DPH Series 25-150 kW
UNIT: #1 .1
LOAD UNPROTECTED
ON AUTO BYPASS
BYPA.
MAIN
PRESS TO BROWSE EVENT
F1 :
6 - 4
2 0 1 2 - 0 1 - 2 0
1 5 : 5 5 : 0 0
(004)
F2 :
) is <1V.