Daktronics TN-2011, Руководство пользователя

Страница: 21 / 94

Electrical Installation
4-3
Use a disconnect so that all hot lines and neutral can be disconnected. The National
Electrical Code requires the use of a lockable power disconnect within sight of or at
the display.
Installation with Only a Neutral Conductor Provided
Installations where no grounding conductor is provided must comply with Article
250-32 of the National Electrical Code. If the installation in question meets all of the
requirements of Article 250-32, the following guidelines must be observed:
Connect the grounding electrode cable at the local disconnect, never at the
display driver/power enclosure.
Use a disconnect that opens all of the ungrounded phase conductors.
4.2 Power and Signal Connection
Reference Drawings:
Driver; Gen III Outdoor LED,
16 Col Master ..................................................................
Drawing A-178197
Component Layout, TN-2018-11/-21 .............................. Drawing A-182506
Component Layout, TN-2032-11/-21 .............................. Drawing A-183714
Component Locations; TN-2011-11/-21.......................... Drawing A-188217
Component Layout, TN-2037-11/-21 .............................. Drawing A-193974
Component Locations, TN-2029-11/21........................... Drawing A-221340
Schematic; 6 Court Tennis w/ Top Score ....................... Drawing B-181793
Schematic; TN-2010 & TN-2011..................................... Drawing B-185759
Schematic; TN-2037-11, -21 ........................................... Drawing B-193461
Route power and signal cables into the
scoreboard from the rear. There are two
knockouts for conduit connection in the back.
All power and signal wiring terminates at the
driver enclosure.
Drawing A-178197
illustrates the 16-column driver used in
Daktronics outdoor LED scoreboards.
To gain access to the driver enclosure, open
the face or digit panel and remove the cover
from the enclosure. Refer to the component
layout drawings for each of the scoreboards.
Connect power and signal cables at the
appropriate locations on the driver enclosure
panel, shown in
Drawing A-178197 .
The conventional power termination panel has been eliminated from Daktronics
outdoor scoreboards; the power feeder circuit connects directly to a terminal block in
the driver enclosure, as shown in
Figure 5 . The terminal block is located in the
lower right corner of the enclosure.
Figure 5 : Power Terminal Block