Conduit, and the labor to pull cable through the conduit, is the responsibility of the customer
and/or contractor.
3.3 Conduit
Daktronics does not include the conduit. Separate conduit must be used to route:
·
Power
·
Signal IN wires
·
Signal OUT wires (if signal is required for another sign)
·
Temp sensor
The conduit holes should located at the bottom right (rear view) of the back of the sign.
Punch or drill out the desired conduit openings.
Be careful that none of the internal components
are damaged
.
Attach the conduit and route the power and signal cables. Refer
Figure 3
for a picture
of the power and signal termination panels.
For signs with more than one face, signal and temperature sensor wiring between signs can be routed
through the same conduit.
3.4 Preparing for Power/Signal Connection
1.
Punch in ½" knockouts (0.875 holes) or drill 7/8" (0.875) holes for the desired conduit openings.
Be careful that none of the internal components are damaged
.
Attach the conduit. Refer to the
component layout drawing
specific to your sign type for internal components.
2.
Remove the bottom left two modules (AX01 and AX02) to expose the power enclosure and signal
panel. To do this, use a
1/8
-inch Allen wrench to turn the latch access fasteners one-quarter turn.
Turn the top latch clockwise and the bottom latch counter-clockwise. Lift the module away from
the display, then reach behind it and disconnect all power and signal connections.
3.
Locate the controller for these displays. The controller is shown in
located within
Section 1.4
. The controller receives the incoming signal and relays it to the individual modules.
Now locate the power termination box. These are located according to component replacement
drawings.
4.
Route power to the display through a fused disconnect switch capable of opening all ungrounded
power conductors. Install this disconnect within the line of sight of any personnel performing
maintenance on the display. If the disconnect is located out of sight of the display, it must be
capable of being locked in the open position.
5.
Power conductors from the disconnect to the display should be routed through conduit in
agreement with local code.
6.
You may route the signal cable from the control computer to the sign at this time also.
Be sure to
run the power and signal cables in a separate conduit.
Electrical Installation
3-3
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