Replacement Of A Module In Capacity Multi-Module System; How To Extract A Module In A Capacity Multi-Module System - ABB CONCEPTPOWER CLASSIC DPA-50 User Manual

5.2.3

Replacement of a Module in Capacity Multi-Module System

WARNING
5.2.3.1

How to Extract a Module in a Capacity Multi-Module System

If in capacity parallel system a UPS-Module experiences a fault and there is not enough capacity left to protect
the load by the remaining operating UPS-Modules, the load will automatically be transferred to bypass
(Bypass-Mode or Eco-Mode) and will continue to be supplied by the mains power supply.
To extract the faulty module from the UPS-Frame in a Capacity Multi-Module System 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 the load is on Bypass and is supplied by the mains power (Bypass-Mode or Eco-Mode) on
all three UPS-Modules; in the majority of the events the LED-indicators on Control Panel of the Faulty
Module will show:
LED Indicator
LINE 1
LINE 2
BYPASS
INVERTER
BATTERY
3. Whereas the LED-indicators on the Control Panels of the other two Operating Modules will show
LED Indicator
LINE 1
LINE 2
BYPASS
INVERTER
BATTERY
4. Close Maintenance Bypass Switch IA1 (position ON)
5. On LCD: "MANUAL BYP IS CLOSED" will appear and the LED-indicator will indicate as shown
below:
LED Indicator
LINE 1
LINE 2
BYPASS
INVERTER
BATTERY
The load is now directly supplied by mains and is not protected
6. Open the Parallel Isolator Switch IA2 (switch to position "OFF") of UPS-module to be replaced. The
UPS-module is now disconnected from the output;
7. Press both ON/OFF Buttons on UPS-Module simultaneously;
8. Open corresponding battery fuses;
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
!
Colour
Green
Green
Green
RED
Green
Colour
Green
Green
Green
OFF
Green
Colour
Green
Green
Green
RED
Green
04-3008_S5_ABB_OPMCPDPA-S2_GB_121202
Printed in Switzerland – Modifications reserved
Section-5
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