20
INSTALLATION & TECHNICAL MANUAL
TRAFFIC LIGHT CONTROL
EXTERNAL TRAFFIC LIGHTS
(Aurora 45 & 65)
External traffic lights can be switched by the Aurora’s built-in relay.
1. Wire the traffic light to the Stop Light terminal (J7) on the Controller board:
TRAFFIC LIGHT
TO AURORA REMOTE DISPLAY
HOT (+)
COMMON
RED NEUTRAL (-)
RED
GREEN NEUTRAL (-)
GREEN
2. The relay’s default condition is OPEN. An open contact is meant to
correspond to a GREEN light.
3. The Aurora controls the traffic light using the pre-installed utility programs
or serial commands (in Command Mode only).
Pre-installed Utility Programs
The following utility programs control the built-in relay for switching an
external traffic light. For program overviews, see page 22.
PROGRAM
SW 1
SW 2
SW 3
SW 4
2 – Axle Weighing with Totals
OFF
OFF
ON
OFF
3 – Axle Weighing (Driving On)
OFF
OFF
OFF
ON
4 – COMMAND mode.
OFF
OFF
ON
ON
Serial Commands
When the Aurora is set in Command Mode, it will accept serial commands
to switch the built-in relay for traffic light control.
For a list of serial control commands, see page 24.
NOTE: For more information on wiring, see the manufacturer’s
manual for the proper model of traffic light used.
ATTENTION!
The Aurora does not supply power to the external
traffic light. DO NOT supply more than
3 A at 110 VAC
to the
Stop Light terminal (J7) and built-in relay.
Summary of Contents for AURORA 45
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