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MAINTENANCE
BYPASS
MAINS
UPS
ON OPERATION MODE "MANUAL BYPASS" THE LOAD IS NOT PROTECTED AGAINST ANY
MAINS FAILURES OR MAINS DISTURBANCES.
7.6.4
Output Switch/Parallel Isolator (CB1)
Every UPS-unit is provided with an output parallel isolator (CB1) which, when opened isolates the corresponding unit from the PARALLEL
BUS and from the LOAD. Once CB1 is open there is no power on the load coming from the UPS.
Redundant parallel configurations are used to isolate a unit from the parallel system without the need of transferring the load to bypass.
POSITION
ON
OFF
7.7
Start-Up Procedure
THE OPERATIONS DESCRIBED IN THIS CHAPTER MUST BE PERFORMED BY A SERVICE
ENGINEER FROM THE MANUFACTURER OR AN AGENT CERTIFIED BY THE MANUFACTURER.
WARNING!
Configuration of UPS-System before switching it on:
1.
Make sure the fuses for the supply of UPS-System in the Input Distribution Board on site are open.
2.
Make sure all the input and output cabling has been performed correctly and check the input phase rotation.
3.
Verify that all Parallel Isolator Switches CB1-1, CB1-2, CB1-3, CB1-4, CB1-5 (depending on the number of UPS Cabinets) are
all open (Position "OFF").
Verify that the Maintenance Switch IA1 (if present) is open (Position "OFF").
4.
5.
Make sure all the battery breakers CB2-1, CB2-2, CB2-3, CB2-4, CB2-5 (depending on the number of UPS Cabinets) in the
UPS (if any) and the external battery cabinets are open.
6.
Check the Position of the DIP Switches SW1-9. This is a Single-Cabinet Configuration, and the DIP Switches SW1-9 must be
set according to positions shown in section 7.2.3.
Start up procedure of Conceptpower DPA 500:
1.
Insert fuses for the supply of UPS-System in the Input Distribution Board.
- The LED-indicators LINE 1 and battery on UPS-Module are lit – green
- On LCD-Display "LOAD OFF, SUPPLY FAILURE" will appear.
2.
UPS-Module 1 (bottom-most module in cabinet):
Press both "ON/OFF" Main Buttons to switch on UPS.
LCD panel must display: "LOAD DISCONNECTED PARALLEL SWITCH OPEN" and the LED-indicator will appear as shown
below:
LOAD
EFFECT
Normal Operation (Load supplied by UPS)
UPS isolated from Parallel Bus for maintenance or UPS replacement (UPS not supplying load)
Bypass Switch
LED Indicator
ON
LINE 1
Green
LINE 2
Green
BYPASS
Green
INVERTER
RED
BATTERY
Green
Conceptpower DPA 500 480V UL │94-12-043275 A02 45
OFF
Green
Green
OFF
Green
Green
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