Modifications reserved
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7.2
Shut-down 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
DPA UPScale
TM
may be shut down completely if the load does not need input power for an
extended period.
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.
Complete shutdown procedure for DPA UPScale
TM
:
The UPS should only be shut down when there is no need to supply the load. The following
procedures can only be executed after the load has been completely de-energized.
NOTE
IF A PARALLEL UPS 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 control panels on each module.
On the LCD: “LOAD OFF, SUPPLY FAILURE” will appear and the LED-indicator will indicate
as shown below:
LED Indicator
Color
LINE 1
Green
LINE 2
OFF
BYPASS
OFF
INVERTER
OFF
BATTERY
Green
3.
Open battery fuses/breakers on internal (if any) and external battery cabinets or racks.
4.
Open the mains fuses/breaker in the building distribution panel.
NOTE
MAKE SURE THE INTERNAL DC-CAPACITORS (ELCO) HAVE BEEN
DISCHARGED BY WAITING AT LEAST 10 MINUTES AFTER SHUTDOWN.
THE DPA UPAScale
TM
IS NOW VOLTAGE FREE.
Содержание DPA UPScale ST120
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