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NC30 Tacho Signal Type
Posted: Tue Oct 28, 2014 4:23 am
by 999Gomerz
Hey Guys,
I am wondering if anyone can help me, I have searched and cant find any info.
Does anyone know what the output from the VFR400 CDI for the Tacho is?
And perhaps the scale?
Cheers,
Re: NC30 Tacho Signal Type
Posted: Tue Oct 28, 2014 6:09 pm
by V4beermonster
Looks like yellow and green on the wiring diagram
Re: NC30 Tacho Signal Type
Posted: Tue Oct 28, 2014 9:06 pm
by magg
If you are referring to the actual waveform I might be able to help, give me a day or two to make a measurement.
Re: NC30 Tacho Signal Type
Posted: Tue Oct 28, 2014 10:44 pm
by 999Gomerz
Thanks Magg, much appreciated. I don't have a scope to measure it. If you have the scale that would be great too.
Re: NC30 Tacho Signal Type
Posted: Thu Oct 30, 2014 8:09 pm
by CRM
Nice one magg
Re: NC30 Tacho Signal Type
Posted: Thu Oct 30, 2014 10:33 pm
by magg
Tacho signal:
+6V pulses fixed at 0.4 mS wide and spaced 4mS between leading edges at 4000 rpm, 3mS at 6000rpm and assumed to continue in same pattern.
Re: NC30 Tacho Signal Type
Posted: Sat Nov 01, 2014 2:23 am
by 999Gomerz
Thanks Magg that's awesome.
Re: NC30 Tacho Signal Type
Posted: Sat Nov 01, 2014 8:59 pm
by CRM
magg wrote:Tacho signal:
+6V pulses fixed at 0.4 mS wide and spaced 4mS between leading edges at 4000 rpm, 3mS at 6000rpm and assumed to continue in same pattern.
Re: NC30 Tacho Signal Type
Posted: Mon Nov 03, 2014 6:30 am
by 999Gomerz
This works out to 4 pulses per revolution for reference.
Thanks again Mag!