04-3275_OPM_ABB_CONCEPTPOWER_DPA_500kW_EN_REV-A.docx
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Modifications reserved
6.8 SHUTDOWN PROCEDURE
WARNING
!
THE OPERATIONS DESCRIBED IN THIS CHAPTER MUST BE
PERFORMED BY A SERVICE ENGINEER FROM THE MANUFACTURER OR
FROM AN AGENT CERTIFIED BY THE MANUFACTURER.
The
CONCEPTPOWER DPA 500
may be shutdown completely, if the load does not need input power for an
extended period of time.It may be switched to Maintenance Bypass Mode for service or maintenance purposes, or
transferred to the OFF-LINE Mode (ECO-Mode), if the load does not need the highest degree of protection.
The load may be disconnected by means of the two ON/OFF (LOAD-OFF) buttons for security reasons.
Complete Shutdown procedure of CONCEPTPOWER DPA 500
Only in case there is no need to supply the load, the UPS System can be completely shut down. The following
procedures can only be executed after the load has completely been de-energized.
NOTE!
IN THE CASE THAT THE PARALLEL UPS SYSTEM HAS TO BE TURNED OFF,
THEN BOTH ON/OFF BUTTONS ON ALL UPS MODULES HAVE TO BE PUSHED.
IN THIS CASE THE POWER SUPPLY TO THE LOAD WILL BE INTERRUPTED.
1.
Verify that the loads are shut down and that there is no need for power supply to the load.
2.
If the loads are all disconnected, press simultaneously both ON/OFF-Buttons on UPS-Control Panel on all
three Control Panels. On the LCD: “LOAD OFF, SUPPLY FAILURE” will appear and the LED-indicator will
indicate as shown below:
LED Indicator
Colour
LINE 1
Green
LINE 2
OFF
BYPASS
OFF
INVERTER
OFF
BATTERY
Green
3.
Open all Parallel Isolator Switches IA2-1, IA2-2, IA2-3, IA2-4, IA2-5 (depending of the UPS frames).
4.
Open battery fuses/breakers on external battery cabinets or racks.
5.
Open the mains fuses/breaker (upstream of UPS) in the building distribution panel.
NOTE!
MAKE SURE THE INTERNAL DC-CAPACITORS (ELCO) HAVE BEEN
DISCHARGED WAITING AT LEAST 5 MINUTES.
THE CONCEPTPOWER DPA 500 IS NOW VOLTAGE FREE.
!
!