Daktronics Large Matrix Galaxy GT6X Series, Инструкция по установке и эксплуатации

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Electrical Installation
5
Conduit
Daktronics does not provide conduit. Separate conduit must be used to route:
• Power
• Signal IN wires to the signal termination enclosure (when applicable)
• Signal OUT wires (if not using the provided interconnect cable)
For power, displays have either a J-box or a
3
/
4
" conduit access hole located in the lower
right on the rear of the display. For signal, displays have signal input quick connects or
etched drilling guides for conduit.
Overview of Power/Signal Connection
Power to the display is terminated externally in most cases. Power Connection (p�6)
shows external wiring examples.
Possible methods for signal termination are shown in the various communication
manuals.
1� Power is routed to the display through a fused disconnect switch capable of opening
all ungrounded power conductors. Install the disconnect within the line of sight of
any personnel performing maintenance on the display, unless it can be locked in the
open position.
2� Route power conductors from the disconnect to the display through conduit
following local code specifications.
3� Terminate display power either to the J-box or internally at the power termination
panel.
4� Connect the grounding conductor to the grounding lug on the rear of the display.
5� Route signal cable to the signal termination enclosure. Ground the enclosure to an
isolated earth-ground connector (when required).
6� Route signal into the enclosure through conduit. The knockouts on the enclosure
require the use of
3
/
4
" conduit.
7� Route signal quick-connect cables from the enclosure to the display either through
conduit or through the display pole if power is not also routed in the display pole.
Note: Quick-connect cables MUST be secured to protect them from weather or
vandalism.
Earth Ground Installation
To connect the Daktronics GT6x Small
Matrix display to an earth-ground
electrode, follow these steps:
1� Install an earth-ground electrode
(ground rod, ground plate, etc.)
near the base of the display. Refer to
Figure 3 for guidelines.
Note: Each display face requires an
earth-ground electrode.
Primary
Mirror
Display
Ground Lug
Thermal Weld
Connection
Preferred
Conduit
Copper Ground Conductor
(One Per Display Face)
Copper Ground Rods
8 ft.(2.5 m)
min.
8 ft.(2.5 m)
min.
Figure 3: Proper Display Grounding