Difference between revisions of "RacecapturePro MK3 hardware install"

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| RPM / Frequency / Period
 
| RPM / Frequency / Period
 
|}
 
|}
 +
 +
===Signal input===
 +
Verify the source provides a relatively clean, pulse signal that transitions between 0 and 5-12 volts.
 +
 +
===Special note about RPM inputs===
 +
For best performance and reliability, it's preferred to obtain a clean RPM signal from the engine's ECU.
 +
* Verify if the signal you're tapping is driving the ignition coil directly, or if it's feeding into an igniter. If it's powering the coil directly, use the [[CoilX]] module to buffer / filter the high voltage signal.
 +
* If uncertain, visualize the RPM signal using an oscilloscope - you should see a relatively clean square wave as the source.
 +
 +
If your only source for RPM is the trigger wire driving the ignition coil primary winding, then you will need the [[CoilX]] module to buffer / filter the noisy, high-voltage component.
 +
 +
==Connecting Sensors==
 +
Connect each sensor connection to the respective frequency sensor input on the main connector.
 +
 
[[file:RaceCapture_Pro_MK3_Molex_pinout_freq_inputs.png|500px]]
 
[[file:RaceCapture_Pro_MK3_Molex_pinout_freq_inputs.png|500px]]
  
See our [[RaceCapturePro_RPM RPM connection guide]] for more information connecting and calibrating these channels.  
+
See our [[RaceCapturePro_RPM RPM connection guide]] for more information connecting and calibrating these frequency / RPM channels.
  
 
==GPIO==
 
==GPIO==

Revision as of 05:38, 25 March 2017

Installation

Mounting Orientation

The default and recommended mounting orientation is flat with indicators facing forward for visibility.

RaceCapturePro MK3 installation orientation.png

  • Mount as flat as possible for best performance from the built-in accelerometer / gyro.

Alternative Mounting

You can mount the system in other orientations. For best accelerometer and gyro performance, it's recommended you mount in an orientation that's square to the orientation of the car.

  • Example:
    • Upside down
    • Vertical / on edge

If an alternate mounting orientation is chosen, you should re-map the accelerometer and gyro channels to reflect this change.

Connections

RaceCapturePro MK3 Rear Diagram.png

Main Connector

The main connector provides access to all power, sensor and communications for the RaceCapture/Pro system.

RaceCapturePro MK3 Molex pinout.png

RaceCapture/Pro MK3 connector pinout
Power
Connection Color
12v Red
Ground Black
Frequency / RPM sensor inputs
Blue Frequency / RPM input 1
Blue / White stripe Frequency / RPM input 2
Blue / Green Stripe Frequency / RPM input 3
Blue / Orange Stripe Frequency / RPM input 4
Voltage Reference
Yellow +5v voltage reference
Analog Sensor Inputs
White Analog Input 1
White / Black Stripe Analog Input 2
White / Orange Stripe Analog Input 3
White / Blue Stripe Analog Input 4
White / Gray Stripe Analog Input 5
White / Green Stripe Analog Input 6
White / Red Stripe Analog Input 7
White / Brown Stripe Analog Input 8
General Purpose Input / Output (GPIO)
Gray GPIO 1
Gray / White Stripe GPIO 2
Gray / Blue Stripe GPIO 3
Auxiliary Serial Input
Purple / White Stripe Auxiliary RS232 Serial TX
Purple Auxiliary RS232 Serial RX
CAN Bus
Orange / Blue Stripe CAN 1 High
Orange CAN 1 Low
Orange / Green Stripe CAN 2 High
Orange / White Stripe CAN 1 Low

Plug Connector Type

The connector is a standard 24 pin Molex Mini Fit Jr.

  • Plug Housing: Molex Mini Fit Jr. 39012240
  • Compatible Pins: Molex 46018-1541 or 46018-1541
  • ProTip: a 24 pin Molex harness from a computer power supply can also work as a secondary wiring harness

GPS

Connect the included GPS antenna to this port.

  • Note: Tighten this connection to 5-6 inch/lbs (just beyond finger tight). Do not over torque

Cellular Telemetry

If optioned with the 3.5G real-time cellular telemetry module, connect the cellular antenna to this port.

  • Note: Tighten this connection to 5-6 inch/lbs (just beyond finger tight). Do not over torque

Antenna Placement Guide

GPS

For optimal GPS reception, install GPS antenna with a clear 360 degree view of the sky, such as on the roof of the vehicle.

Cellular antenna

For optimal cellular performance, install the cellular antenna on the roof of the vehicle, using the roof as a ground plane.

Antenna separation

It's recommended you separate the GPS and cellular antennas as reasonably far apart as possible, such as mounting at opposite ends of the roof. RaceCapture Pro MK3 antenna install.png

  • Note: - about 3 foot / 1 meter separation is ideal.

RJ45 CAN + Power connection

The RJ45 port provides connections for power and both CAN channels.

RaceCapturePro MK3 RJ45 pinout.png

OBDII CAN cable

The RJ45 port is normally provided for the OBDII CAN cable accessory for a convenient plug and play OBDII connection

CAN OBD2 cable.jpg

Custom Cable

You can also use a common RJ45 ethernet cable to provide power, ground and CAN bus data for a custom application.

Rj45labeled.jpg

RJ45 power and CAN connection pinout
Connection CAT5 EIA-T568B RJ45 cable
+12v Brown
Ground Orange/White
CAN 1 High Orange
CAN 1 Low Green/White
CAN 2 High Blue
CAN 2 Low Blue/White

Note: These color codes assume EIA-T568B RJ45 cable (check printing on the cable to confirm)

Sensors

Analog Sensor inputs

9 analog sensor input channels are provided: 8 are available for dedicated sensors, plus a 9th internal channel assigned to battery voltage.

Analog channel specifications
Voltage Range 0-5v
Input Impedance Greater than 1M ohm
Voltage protection 400v (intermittent)
ADC precision 12 bit SAR
Maximum Sample Rate 1000Hz (logging to SD card)
Mapping supported Raw voltage / linear formula / interpolated map

Connecting Sensors

Connect each analog sensor to the respective analog sensor input on the main connector.

RaceCapture Pro MK3 Molex analog inputs.png

See our comprehensive RaceCapturePro_Sensors Sensor Guide for information on connecting various types of analog sensors.

Frequency / RPM sensor input

You can connect RPM, wheel speed and other pulse-type sensors to RaceCapture/Pro frequency input pins.

Frequency channel specifications
Voltage Range 0-12v
Input Impedance Greater than 1M ohm
Voltage protection 400v (intermittent)
Maximum Sample Rate 1000Hz (logging to SD card)
Mapping supported RPM / Frequency / Period

Signal input

Verify the source provides a relatively clean, pulse signal that transitions between 0 and 5-12 volts.

Special note about RPM inputs

For best performance and reliability, it's preferred to obtain a clean RPM signal from the engine's ECU.

  • Verify if the signal you're tapping is driving the ignition coil directly, or if it's feeding into an igniter. If it's powering the coil directly, use the CoilX module to buffer / filter the high voltage signal.
  • If uncertain, visualize the RPM signal using an oscilloscope - you should see a relatively clean square wave as the source.

If your only source for RPM is the trigger wire driving the ignition coil primary winding, then you will need the CoilX module to buffer / filter the noisy, high-voltage component.

Connecting Sensors

Connect each sensor connection to the respective frequency sensor input on the main connector.

RaceCapture Pro MK3 Molex pinout freq inputs.png

See our RaceCapturePro_RPM RPM connection guide for more information connecting and calibrating these frequency / RPM channels.

GPIO

Input Mode

Output Mode

Communications

CAN Channels 1 / 2

Auxiliary Serial