Daktronics DF-1050/1051/1052/1053 - Manual (Page 19)

Electrical Installation 3-1
Section 3: Electrical Installation
Daktronics Parking Garage displays are ETL listed and tested to CSA standards.
Contact Daktronics with any questions regarding the testing procedures.
Only qualified individuals should perform power routing and termination to the
display. It is the responsibility of the electrical contractor to ensure that all
electrical work meets or exceeds local and national codes.
3.1 Preparing for Power/Signal Connections
Reference Drawings:
Enclosed Driver, 4-col MASC, Wide ............................ Drawing A-191943
Electrical Specification Drawings ............................. Refer to Appendix A
Electrical installation consists of the following processes:
• Providing power and ground to a disconnect near the display.
• Routing power and ground from the main disconnect to the display driver
enclosure.
• Connecting the ground to a grounding electrode at the display location.
• Routing the control signal cable from the control location to the display
location.
Electrical Specifications Drawings for displays in this series show the locations of
internal components and display signal and electrical access holes. Refer to these
drawings before making power and signal connections. All power and signal
terminates to blocks within the driver enclosure, immediately below the power
supply. Termination is to be completed by the customer's electrician to the power
terminal block (TB4). Refer to Drawing A-191943.
3.2 Power and Grounding Connections
Correct power and grounding installation is imperative for proper display operation.
The subsections that follow give details of display power and installation. Only
qualified individuals should attempt to complete the electrical installation. Improper
installation could result in serious damage to the equipment and could be hazardous
to personnel.
Power
Daktronics DataMaster displays have been designed for easy access to components,
and to power and control signal hookup. Front panels are hinged to allow access to
the digits, cabling and other electronic components.
The DataMaster, Parking Garage displays require a dedicated, 120 VAC circuit for
incoming power. The display itself has no breakers or fuses.
Power conductors and conduit are to be sized and installed by the customer's
electrician. Knockout-type access holes for the conduit are
7 /
8
" and located on the
both sides of the display.