PRODUCT MANUAL
ELECTRONIC DISPLAYS INC.
135 S. CHURCH STREET
ADDISON, ILL. 60101
www.electronicdisplays.com
ED206/406 - 115 –
4
D – N1 - KY
DESCRIPTION:
•
2.25 in. or 4.0 in. high, red 7 segment display; Programmable up/down-
timer by a preset time.
•
Serial interface (RS485) from EDI supplied Keypad.
•
Easy to program protocol (See Appendix E).
•
Power: 120VAC @ 60Hz.
•
Battery Back-up to retain information.
•
NEMA 1 rated enclosure w/ power supply.
OPERATION:
This display will count by a preset value at a preset time. (Example –
count by 1 every second). Factory set to increment by 1 every
second. It can also be programmed to count by any number at any
time interval. See Appendix E for protocol information. The keypad
also allows the user to run/hold the display, reset to 0 or preset to a
number. This board is addressable with a two-digit address(01).
Addressing is required to communicate with the displays. There are
3 inputs located inside the right side of the display for wiring contact
closure switches. The user has the option of wiring switches to the
inputs or using the serial controlled run/hold.
INPUT OPERATION:
•
IN1 – This is the Run / Hold input. Apply a
momentarily
short between
Vext and
IN1 to toggle the Run / Hold status.
•
IN2 – This will reset the display to ‘0’
•
IN3 – This input is the Up / Down select. Hard wired internally to for
up-timing mode. If the jumper is removed, the display will operate in
down-timing mode.
•
If there are any questions or comments regarding this order, please call our
Toll-free number: 1 - 800 - 367 - 6056
