Daktronics GALAXY GT6 Series, Инструкция по установке и эксплуатации

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Electrical Installation
8
Important Notes About Power Requirements
Run a separate circuit to the electronic display(s) to isolate it and prevent any issues that
could be caused by line voltage fluctuations or high frequency noise on the power line
caused by other types of equipment. A separate circuit also makes display maintenance
and troubleshooting easier. Daktronics assumes no liability for any issues caused by line
voltage fluctuations or other improper power conditions if these recommendations are
not followed.
Size conductors of circuits that deliver power to the display according to national and
local electrical codes so the power distribution system delivers full-load power to the
display while maintaining a voltage within 5 percent of the utility nominal voltage.
Main Disconnect
Daktronics requires using a power disconnect
switch with the display. Use a disconnect so that
all ungrounded conductors can be disconnected
near the point of power connection.
Locate the disconnecting means either in a direct
line of sight from the display or so it can be locked
in the open position. This ensures that power is not
reconnected while service personnel work on the
display.
Power Connection
1� Review the power requirements for the display.
Requirements are found on the display shop
drawing or label on the display's back.
2� Route conduit from the main distribution
panel/disconnect to each display power
entrance. Each display section has a power
entrance and requires a dedicated circuit.
3� Remove the four screws that attach the power
entrance access door. Refer to Figure 8 .
4� Connect conduit to the 1
1
/
4
″ Myers hub at the
left of the power entrance box.
5� Feed power cable from the conduit into the power
entrance box.
6� Connect primary power lines to appropriate taps
in enclosure. Refer to Figure 9 . Refer to label on
enclosure for wiring diagram
7� Reinstall power entrance cover.
8� Connect grounding electrode to ground lug, shown in
Figure 10 , on each section.
Figure 8: Display Power Requirements
Label
Figure 9: Power Entrance Box
Figure 10: Ground Lug