RPM from a UL power engine

[eddies]

Hi guys

I am trying to get RPM to display from a UL-power engine.

The ul power manual states the ecu puts out a 12v square wave signal for rpm. I have connected this to the skyview left rpm input, however I am seeing erratic to no rpm displayed.

Has anyone solved this problem?

Cheers
Eddie

 

[dynonsupport]

Are you hooked to the low voltage input on the EMS or the high voltage one?

 

[eddies]

I am hooked up to pin 32 on the EMS harness?

Cheers
Eddie

 

[eddies]

Hello Mr Dynon,

Do you have any other hints or suggestions?

I am helping out a friend with this and am scratching my head at the moment.

Cheers
Eddie

 

[Dynon]

Try pin 34. That's the lower voltage RPM input. Although the UL output claims to be a 0-12V signal, if it's not quite hitting 10-12V, the regular RPM input won't reliably detect pulses. Pins 34 and 35 are provided for just this purpose - they can detect voltage pulses that peak much lower.

 

[eddies]

Excellent thanks for the feedback

Cheers Eddie

 

[drferrell]

We have a UL 350iS with Skyview, RPM is connected to pin 32 and works fine.