Daktronics TI-2041, Руководство пользователя

Страница: 8 / 34

Electrical Installation
4
3 Electrical Installation
Electrical installation consists of routing power to the power terminal block located in
each display. The Final Assembly drawings in Appendix A show details on access for
electrical connections and the electrical requirements for that size of display.
Daktronics display front panels are hinged to allow access to the digits, cabling, and
other electronic components. See Access Internal Components (p�5) for cabinet
access details.
Warnings and Disclaimers
• Ensure that all electrical work meets or exceeds all local or national electrical codes.
• Provide the required power to the display as listed on the product labels,
specifications, or site-specific riser drawings. The conductor size may vary based on
the length of the power run.
• Consider implementing a separate circuit for the display using an isolation
transformer or dedicated transformer.
• Daktronics assumes no liability for any issues caused by line voltage fluctuations or
other improper power conditions.
Important Notes:
• Only qualified individuals should perform power and signal routing to the display and
termination at the display.
• Daktronics engineering staff must approve all proposed changes, or the warranty will
be void.
• Improper installation could result in serious damage to the equipment and could be
hazardous to personnel.
• Size conductors of circuits delivering power to a Daktronics display according to local
and national electrical codes so that the power distribution systems can deliver full-
load power to the display while maintaining a voltage within 5% of the utility nominal
voltage.
Power Requirements
Do not connect displays to any voltage other than that listed on the display product
label. Displays have a voltage input of 100-240 VAC and a frequency input of 50/60 Hz.
•
A dedicated circuit is defined as one hot, one neutral, and one ground wire.
• Maximum amperage will vary with the number and type of digit displays connected.
Note: It is critical that the display circuit be fused at 15 A and that all conductors
used must be designed to pass a 15 A current in normal operation. Failure to
meet wiring and over-current protection device requirements may violate
local and national electrical codes and will void the display warranty.
Main Disconnect
Daktronics requires installation of a power disconnect switch with the display so that all
ungrounded conductors can be disconnected near the point of power connection.
Locate the disconnecting means either in a direct line of sight from the display or so it
can be locked in the open position. This ensures that power is not reconnected while
service personnel work on the display.