Innovate Motorsports SSI-4 - Manual (Page 2)

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1.
Overview ............................................................................................................................... 3
1.1 Differential Inputs .............................................................................................................. 4
2. Specifications........................................................................................................................ 4
The Innovate Log-Chain concept .................................................................................................... 5
2.1 Log-Chain of 4 channels consisting of SSI-4 alone. ......................................................... 6
2.2 6-channel Log-Chain example with 2 AFR channels........................................................ 6
2.3 16-Channel Log-Chain example ....................................................................................... 6
3. Connecting the SSI-4............................................................................................................ 7
3.1 Connecting power ............................................................................................................. 7
3.2 Connecting external sensor signals .................................................................................. 7
3.3 Powering external sensors................................................................................................ 7
4. RPM measurement............................................................................................................... 8
4.1 RPM Measurement basics................................................................................................ 8
4.1.1 Four-Stroke Engines .................................................................................................. 8
4.1.2 Two-Stroke Engines .................................................................................................. 8
4.1.3 Rotary Engines (Wankel Engine) .............................................................................. 9
4.2 How the SSI-4 determines RPM ....................................................................................... 9
4.2.1 Measurement Method on Channel 1 ......................................................................... 9
4.3 Connecting an RPM signal (Channel 1) ........................................................................... 9
5. Measuring Frequencies, custom RPM, or speed ............................................................... 10
6. Measuring duty cycle .......................................................................................................... 10
7. Measuring external 5V sensors .......................................................................................... 11
8. Programming the SSI-4 with LM Programmer ................................................................... 11
8.1 Changing the device name ............................................................................................. 12
8.2 Updating the firmware ..................................................................................................... 12
8.3 Input Configurations ....................................................................................................... 12
8.3.1 Measuring RPM (Input 1 only) ................................................................................. 12
8.3.2 Measuring Frequency (all Inputs) ............................................................................ 13
8.3.3 Measuring Speed (all Inputs)................................................................................... 13
8.3.4 Measuring Duty Cycle (Input 2 only) ....................................................................... 14
9. Kit Contents ........................................................................................................................ 15
Appendix A: Limited Warranty ...................................................................................................... 16
Revision History............................................................................................................................. 16