Speed Inputs

Normally these are frequency based inputs and should be connected between Digital Input 1 - 8. The ECU can can read a frequency range on these input from 0Hz - 25kHz (25000Hz).

The following Speed Options are available:

  • Left Drive Speed.
  • Right Drive Speed
  • Left Drive Speed 2
  • Left Drive Speed 2
  • Left Ground Speed
  • Right Ground Speed
  • Drive Speed
  • Ground Speed
  • Turbo Speed 1
  • Turbo Speed 2
  • Input Shaft Speed
  • Tail Shaft Speed

Sources

The following channel assigns are recommended.

Four Wheel Drive

If the speed data is collected by the ECU on all 4 wheels, then assign the front wheels to the Left and Right Drive Speed Channels and the rear wheels to the Left an Right Speed 2 Channels

Gearbox Output

Assign this to the Drive Speed Channel.

CAN

CAN Data: Input Source = CAN Bus OEM

This allows speed data that is available on a factory CAN bus to be displayed. The following channels can be used for different CAN bus systems.

NOTE: When the Input Source is selected as “CAN Bus OEM” only the Filter setting is used. All other settings are not required as the data is already calibrated.

See Build Packages for application specific information.

Configuration

Each Speed Input has a range of settings that must to be configured to match the input type.

Sensor Type

  • Magnetic. 
  • Hall Effect
  • Logic 
  • Switch.

Active Edge

  • Rising
  • Falling
  • Both
  • Off

Pull Up

Can be used to switch on a 9V pull up resistor.

Scaler

Scales the frequency based input into kph or into the units that have been selected. The raw frequency value can be viewed from the Runtime Menu -> Raw Inputs Tab.

Arming Thresholds

Each channel when assigned between DI 1-8 can have two options for arming threshold control; 2 point or Table.

NOTE: It is recommended on ALL frequency based Magnetic inputs that the Table option is used. This allows better signal integrity control due to the improved functionality offered by the table.

Scaler Calculation

Scaler = Number of Sensor Teeth / Wheel Diameter(cm) * 3180

Scaler = 360 when using CAN Speed Inputs