Frequency Conversion Mode Turn-Off Procedures - Delta Modulon DPH series User Manual

7
Now, each power module performs DC BUS discharging and its LED indicator flashes
green. After discharging, each power module's LED indicator will be off.
8 About 3 minutes later, the UPS will shut down. After that, the LCD and the tricolor LED
indicator will be off.
9 Switch OFF every external battery cabinet's breaker (Q5).

6.3.6 Frequency Conversion Mode Turn-off Procedures

1
In frequency conversion mode, the LCD shows the following screen (Figure 6-57) and
the tri-color LED indicator illuminates green. For the tri-color LED indicator location,
please refer to Figure 2-11.
UPS-1.1
Power Flow
Power Flow
Summary
System Status
(Figure 6-57: Frequency Conversion Mode Screen & ON/ OFF Button Location)
2 Press the ON/ OFF button (
if you want to power off the UPS's inverter. Please select 'YES'.
Modulon DPH Series
WARNING:
1. For parallel units, ensure that every operation procedure mentioned below is
synchronized to all parallel UPSs.
2. For parallel application, if you just want to operate a specific UPS but not all
parallel ones, please contact service personnel.
MEASUREMENT SETUP
POWER FLOW
Maintenance
Bypass
Bypass
Mains
90 %
5 mins
WARNING:
Please note that, once you select 'YES', all power will be completely cut off.
Please make sure that the critical loads connected to the UPS have already
been safely shut down before you perform the turn-off procedures.
MAINTENANCE LOG IN EVENT LOG
User
) once and the following screen will pop up to ask you
6-42
10:15
May 25,2018
Frequency
Conversion
ON/ OFF
Button
Load
30 %