Section-5
04-3008_S5_ABB_OPMCPDPA-S2_GB_121202
Page 13/16 ABB
Printed in Switzerland – Modifications reserved
5.2.3
Replacement of a Module in Capacity 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
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
Colour
LINE 1
Green
LINE 2
Green
BYPASS Green
INVERTER RED
BATTERY Green
3.
Whereas the LED-indicators on the Control Panels of the other two Operating Modules will show
LED Indicator
Colour
LINE 1
Green
LINE 2
Green
BYPASS Green
INVERTER OFF
BATTERY Green
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
Colour
LINE 1
Green
LINE 2
Green
BYPASS Green
INVERTER RED
BATTERY Green
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;
