Daktronics AF-3165-34-RGB - Manual (Page 30)

Electrical Installation 3-10
Power Connection
Reference Drawings:
Power Term Box, AF-3X65, 8- Pos. ............................ Drawing A-154965
Power Term Box 2-Pos ............................................... Drawing A-175131
Power Specs, 8x48-48X144 Display RGB .................. Drawing A-179873
Schematic .................................................................Refer to Appendix A
Incoming power is connected within the power termination enclosure. Complete the
following steps to terminate the hot and neutral wires at the termination block within
the enclosure. Refer to Drawing A- 154965 or A-175131 and the appropriate
Schematic for your display size.
1. Access the enclosure by removing the left bottom two modules as described
in Section 3.5
2. Route the power cables through the power conduit in the rear of the sign
and to the enclosure
3. Connect the white neutral wire to neutral bus
4. If one power line is being terminated (120VAC), connect the black “hot”
wire to L1. Install a jumper per note one on Drawing A-154965
5. If two power lines are being terminated (120/240VAC). Connect the second
“hot” wire to L2 and do not install the jumper
6. Connect the green grounding wire to the grounding bus E41. Refer to Figure
20
Main Disconnect
The National Electrical Code requires the use of a lockable power disconnect near
the display. Provide a lockable disconnect switch (knife switch) at the display
location so that all power lines can be completely disconnected. Use a 3-conductor
disconnect so that both hot lines and the neutral can all be disconnected. The main
disconnect should be mounted at or near the point of power supply connection to the
display. A main disconnect is to be provided for each supply circuit to the display.
The disconnecting means must be located in a direct line of sight from the display or
outline lighting that it controls. This requirement provides protection by enabling a
worker to keep the disconnecting means within view while working on the display.
Exception: Disconnecting means that are capable of being locked in the open
position may be located elsewhere.