Daktronics AF-3400-133,171,216,260 - Manual (Page 22)

Electrical Installation 3-4
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.
Note: Depending on the type of signal cable you may have to run the power and
signal cables in a separate conduit.
3.5 Power
Reference Drawings:
Power Specs, AF-3400-**X**-133/171-MONO-Domestic ..... Drawing A-235256
Power Specs, AF-3400-**S**-133/171-MONO-240 Volt ....... Drawing A-235257
Power Requirements
Refer to Drawing A-235256 and Drawing A-235257 located in Appendix A, for
voltage and current requirements for your display size. Domestic displays use
120/240 VAC single-phase power source, or a 120/208 VAC three-phase power
source. In other locations, 240 VAC displays use a 240 VAC single-phase power
source, or a 240 VAC three-phase power source.
Do not connect the displays to any voltage other than that listed on the
Daktronics product label.
Proper power installation is imperative for proper display operation. The following
sub-sections give details of display power installation. Qualified personnel must
perform the electrical installation. Unqualified personnel should not attempt to install
the electrical equipment because serious danger to equipment and personnel could
occur if the equipment is improperly installed.
Grounding
This sign is intended to be installed in accordance with the requirements of
Article 600 of the National Electrical Code and/or other applicable local codes.
This includes proper grounding and bonding of the sign.
Displays must be grounded according to the provisions outlined in Article 250 of the
National Electrical Code
® . Daktronics requires a resistance to ground of 10 ohms or
less.
The display system must be connected to earth-ground. Proper grounding is
necessary for reliable equipment operation. It also protects the equipment from
damaging electrical disturbances and lightning. The display must be properly
grounded or the warranty will be void.
The material of an earth-ground electrode differs from region to region and from
conditions present at the site. Consult the National Electrical Code and any local
electrical codes that may apply. The support structure of the display cannot be used