Modules Check; Start-Up Procedure - ABB DPA 250 S4 Operating Manual

80 D PA 2 5 0 S 4 5 0 - 2 5 0 K W O P E R AT I N G M A N U A L
Display in case of single input feed configuration.
10.1.5
1. Load-On to INVERTER mode the last module
in the parallel installation (The module in the
uppermost slot of the last frame):
• Press the ON/OFF button until the confir-
LED INDICATION
3. The message "UPS now is Master" is now
present in the module event log.
LED INDICATION
5. Repeat the same series of operations with all
other modules present in the parallel installa-
tion. From the last one (below the one just
tested) to the one in the lowest slot of the
first frame).
10.1.6
1. With all modules in the parallel system
Loaded OFF, switch to ON position (close)
the output isolator Q2 of the last frame.
Q2 ON (Closed)

Modules check

mation window appears on the display.
LED indicators status:
Rectifier
Red (Green if single
Bypass
input feed)
Load
Battery Flashing Red
LED indicators status:
Rectifier
Red (Green if single
Bypass
input feed)
Load
Battery Flashing Red

Start-up procedure

• Confirm with ENTER button.
2. Check if the starting sequence is correctly
executed and the UPS switches to INVERTER
mode.
COLOR SINGLE INPUT FEED CONFIGURATION
Green
OFF
4. By means of the ON/OFF button Load the
module OFF (Confirm with ENTER when
required).
COLOR
Green
OFF
Do not forget to check the status of LEDs and
display indicators of each module.
2. In case of "Dual input feed" configuration,
insert the Bypass line fuses in the customer
distribution board.
Q2 OFF (Opened)
Module display:
Module display:
SINGLE INPUT FEED CONFIGURATION