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THE OPERATIONS DESCRIBED IN THIS CHAPTER MUST BE PERFORMED BY A SERVICE
ENGINEER FROM THE MANUFACTURER OR BY AN AGENT CERTIFIED BY THE
MANUFACTURER.
WARNING!
The load is supplied directly by Input Mains power and the UPS is OFF.
1.
Close battery fuses/breakers in the external battery cabinets or racks.
On the LCD's: "LOAD OFF, SUPPLY FAILURE" will appear and the mimic panel will show:
2.
LED Indicator
LINE 1
LINE 2
BYPASS
INVERTER
BATTERY
3.
Close Parallel Isolators CB1-1, CB1-2, CB1-3, CB1-4, CB1-5 (depending on the number of UPS cabinets) and check
message "PARALLEL SW CLOSED" on LCD of each module.
4.
Press simultaneously the two ON/OFF buttons on the UPS module control panel on all control panels. Unit will start-up
and after about 60 seconds the mimic panel will show:
LED Indicator
LINE 1
LINE 2
BYPASS
INVERTER
BATTERY
5.
Make sure that the bypass LED is green, then open the Maintenance Bypass Switch IA1 (position OFF).
Using LDC panel, select the COMMANDS menu and choose command "LOAD TO INVERTER". This will transfer the
6.
LOAD to Inverter on the complete system (all units). On LCD panel "LOAD PROTECTED" will appear.
THE LOAD IS NOW SUPPLIED BY INVERTER POWER AND IS PROTECTED
7.11 Replacement of UPS Modules
7.11.1 Replacement of Single-Module UPS Systems
If your Conceptpower DPA 500 consists of only one single UPS-Module, the UPS needs to be transferred to maintenance
bypass.
Note:
Maintenance bypass is not included within the UPS cabinet. Optional external maintenance bypass cabinet is
required to perform the above recommendation.
IMPORTANT
Before performing the operations described below, follow the procedure of the section 7.9 to transfer the UPS from
inverter operation to maintenance bypass.Replacement of UPS-Module in Redundant Multi-Module Systems
THE OPERATIONS DESCRIBED IN THIS CHAPTER MUST BE PERFORMED BY A SERVICE
ENGINEER FROM THE MANUFACTURER OR BY AN AGENT CERTIFIED BY THE
MANUFACTURER.
WARNING!
Color
Green
OFF
OFF
OFF
Flashing/Green
Color
Green
Green
Green
RED
Green
Conceptpower DPA 500 480V UL │94-12-043275 A02 49
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