Section-5
04-3008_S5_ABB_OPMCPDPA-S2_GB_121202
Page 11/16 ABB
Printed in Switzerland – Modifications reserved
5.2.2
Replacement of UPS-Module in Redundant Multi-Module System
WARNING
!
THE WEIGHT OF A UPS MODULE CAN REACH 50KG, THEREFORE IT
CAN BE LIFTED ONLY BY 2 PERSONS. THE MODULE MUST NEVER BE
CARRIED BY ONE PERSON ONLY.
WARNING
!
MAKE SURE THE INTERNAL DC-CAPACITORS (ELCO) HAVE BEEN
DISCHARGED WAITING AT LEAST 5 MINUTES. HOW TO EXTRACT A
MODULE IN REDUNDANT MULTI-MODULE SYSTEM
5.2.2.1
How to Extract a Module in Redundant Multi-Module System
If in a redundant parallel system a UPS-module is faulty, the load will continue to be protected by the operating
modules On-Line-Mode (Inverter-Mode) and the faulty Module may be replaced without having to transfer the
load to bypass!
To extract the faulty module from the UPS-Frame in a Redundant Multi- Module Configuration proceed as
follows:
1.
Identify the faulty Module with the Alarm condition and RESET the Alarm. The audible noise will stop.
If the Alarm conditions persists (the LED-Indicator ALARM is red) there is a fault in the UPS-Module.
2.
Verify that load is supplied by inverter of the other modules running by checking the LCD indication
LOAD PROTECTED. Verify load measures on the operating modules.
3.
Turn the faulty module OFF by pressing simultaneously both “ON/OFF” buttons.
On the LCD: “LOAD OFF, SUPPLY FAILURE” should appear and the LED-indicator will indicate as
shown below:
LED Indicator
Colour
LINE 1
Green
LINE 2
OFF
BYPASS OFF
INVERTER OFF
BATTERY Flashing
Green
4.
Open the corresponding Parallel Isolator Switch IA2. LCD panel must show: PARALLEL SW OPEN.
5.
Remove the 4 fixation screws and slide out the UPS-Module (10cm) paying particular attention to the
cable connected to JD7. This operation will disconnect module by the power connection located on
the back of the cabin.
6.
With the module OFF, disconnect any connected cable as JD7.
7.
Pull the module out.
ATTENTION: BEFORE DRAWING THE UPS-MODULE COMPLETELY OUT, WAIT 5 MINUTES UNTIL
THE INTERNAL DC-CAPACITORS ARE DISCHARGED.
NOTE:
Two persons are needed to pull out the module from the UPS-Frame. The weight of a
DPA 50 S2, 40 kW module is 46.8kg (the weight of DPA 30 S2 , 24kW module is 43.1kg)
8.
Screw the protection cover on the empty area left empty by the module with the 4 fixation screws.
5.2.2.2
How to insert a module in a Redundant Multi Module System
WARNING
!
THE WEIGHT OF A UPS MODULE CAN REACH 50KG, THEREFORE IT
CAN BE LIFTED ONLY BY 2 PERSONS. THE MODULE MUST NEVER BE
CARRIED BY ONE PERSON ONLY
