Speed Sensor Set Up

A speed sensor is required for the ROS device to perform speed based control system operations such as product rate control, planter or seeder control, yield mapping, etc. Several options are available for speed sense and input. Contact a local Raven dealer for additional information.

To configure the ROS device for the speed sensor connected to the system:

  1. Select the Settings icon on the bottom right of the screen. The Settings Menu will open.

  2. Locate and select the Speed Settings module. The Speed Settings tab will be displayed with the following settings, displays, and options:

    Select the type of sensor currently used for speed signal with the control system.

    The speed calibration value is used to tune and adjust the control system to the connected speed sensor. A calibration value may be entered for each sensor type to allow the operator to quickly switch between speed sources if necessary without recalibrating the speed system during an active job.

    The following calibration values are recommended for initial system set up:

    Sensor Type Setting Used with Recommended Initial Speed Cal
    Imperial Metric
    Wheel Wheel Magnets 1000 254
    Speedometer Drive Speed Sensor 612 155
    Radar Raven Radar 598 152
      GPS External Raven DGPSClosed Differential Global Positioning System is an enhancement to standard GNSS/GPS messages to provide better position accuracy. Receiver 785 199
    Internal DGPSClosed Differential Global Positioning System is an enhancement to standard GNSS/GPS messages to provide better position accuracy. Receiver 812 206

    GPS Speed over CANbus

    Note:  A boom/speed node with firmware version 1.6 is required for GPS speed over CANbus.

    		 100 1000

    These values are good starting points and generally yield adequate results, however, the speed cal should be refined for the specific system and equipment. Refer to Calculate the Speed Calibration Values for instructions on refining the speed calibration.

    Note:  The GPS speed over CANbus feature is only available with specific Raven speed sense nodes. This feature utilizes NMEAClosed National Marine Electronics Association speed over ground data transmitted over the CAN network which eliminates the need for a separate, external speed sensor.

    notice

    When using the GPS speed over CANbus feature, no refining or adjustment is available for the speed cal value. Losing GPS signal for more than a second will also result in loss of the CAN speed signal which may affect product application in progress.

    The speed settings tab displays the current vehicle speed monitored by the selected speed sensor.

    The test speed feature may be used to simulate a speed signal when testing or troubleshooting the control and monitoring systems and allows the operator to check system function while the vehicle is stopped. To use the test speed feature, touch the self-test speed field and use the on-screen keypad to enter a value approximately equal to normal application speeds.

    Note:  A speed cal value must be set for the selected sensor type to allow the test speed feature to function. The test speed feature will be cleared automatically if the ROS device receives a signal from the actual speed sensor. To keep the test speed feature from disengaging, disconnect the speed sensor from the system during testing.

    When utilizing a Test Speed, verify AccuBoom™ is disabled. AccuBoom™ requires a live GPS movement input so the Test Speed will not working correctly with it enabled.

    The ROS device monitors and tallies the distance traveled during equipment operation. This display may be used as an odometer or “trip meter” for the distance traveled by the equipment over a season or during a specific field operation.

    Note:  To reset the ROS device distance tally, touch the recal distance icon in the lower, right corner of the speed settings tab.

Last Revised: Jul 2024