Daktronics Galaxy AF-3155, Manual

Page: 26 / 87

3.5 Preparing for Power/Signal Connection
Reference Drawings:
Comp. Layout Drawings ................................................. Refer to Appendix A
1. Punch or use 7/8" (0.875) holes for the desired ½" conduits. Be careful that
none of the internal components
are damaged.
Attach the conduit.
Electrical Installation
3-6
2. Remove the two bottom left
modules (AX01 and AX02) to
expose the power enclosure and
signal panel. Use a
1
/
8
" Allen
wrench to turn the latch access
fasteners one-quarter turn. Turn the
top latch clockwise and the bottom
latch counter-clockwise. Lift each
module away from the display;
reach behind it, and disconnect all
power and signal connections.
3. Locate the controller and power
termination box for these displays in
the
Component Layout Drawings .
4. The controller receives the incoming
signal and relays it to the individual modules.
Figure 18: Opening the Display
5. 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.
6. Power conductors from the disconnect to the display should be routed
through conduit in agreement with local code.
7. You may route the signal cable from the control computer to the display at
this time also.
Be sure to run the power and signal cables in a separate
conduit at least two feet apart .