ABB DPA 250 S4 - 10.1.5 Modules Check

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80 DPA 250 S4 50-250 KW OPERATING MANUAL

Q2 ON (Closed) Q2 OFF (Opened)

Display in case of single input feed configuration.

3. The message “UPS now is Master” is now

present in the module event log.

4. By means of the ON/OFF button Load the

module OFF (Confirm with ENTER when

required).

LED indicators status: Module display:

LED INDICATION COLOR SINGLE INPUT FEED CONFIGURATION

Rectifier Green

Bypass

Red (Green if single

input feed)

Load OFF

Battery Flashing Red

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).

Do not forget to check the status of LEDs and

display indicators of each module.

10.1.6 Start-up procedure

1. With all modules in the parallel system

Loaded OFF, switch to ON position (close)

the output isolator Q2 of the last frame.

2. In case of “Dual input feed” configuration,

insert the Bypass line fuses in the customer

distribution board.

10.1.5 Modules check

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-

mation window appears on the display.

• Confirm with ENTER button.

2. Check if the starting sequence is correctly

executed and the UPS switches to INVERTER

mode.