Greetings,
I just finished installing my new Lightspeed Plasma-III ignition, and it runs great, but I have no tach on the D180 for that ignition. There was a post by Dynon back in April that says the EMS is able to work with the tach output of the Plasma-III, but I was wondering if anyone here can confirm that they have one that works.
The D180 says it needs a peak voltage of "at least 10V" for the tach signal to work, and the Lightspeed says it is a 10V peak, 3 ms pulse. I'm wondering if maybe this is cutting it too close to work. I did use 24 gauge wire, rather than 20-22 like the Lightspeed manual shows, but I figured that would be fine for something like this (and it's all I had).
The Lightspeed shows pin 6 as the tach out signal, and pin 13 as a shield, which is labeled tach ground. I grounded pin 13, and connected pin 6 of the Lightspeed to the D180 input that had been connected to my right mag. For the mag, I had the required resistor installed, and it all worked. Naturally, I connected it without the resistor for the Lightspeed.
Before I do any real troubleshooting, I just wanted to check and make sure that this really does work for other folks. If not, I'll find some other way, or just ignore it. I can certainly live without a reading when the key is on the right position, since I only use that during runup, and since the Lightspeed just doesn't drop any rpm on a "mag check"
Thanks,
Rusty
I just finished installing my new Lightspeed Plasma-III ignition, and it runs great, but I have no tach on the D180 for that ignition. There was a post by Dynon back in April that says the EMS is able to work with the tach output of the Plasma-III, but I was wondering if anyone here can confirm that they have one that works.
The D180 says it needs a peak voltage of "at least 10V" for the tach signal to work, and the Lightspeed says it is a 10V peak, 3 ms pulse. I'm wondering if maybe this is cutting it too close to work. I did use 24 gauge wire, rather than 20-22 like the Lightspeed manual shows, but I figured that would be fine for something like this (and it's all I had).
The Lightspeed shows pin 6 as the tach out signal, and pin 13 as a shield, which is labeled tach ground. I grounded pin 13, and connected pin 6 of the Lightspeed to the D180 input that had been connected to my right mag. For the mag, I had the required resistor installed, and it all worked. Naturally, I connected it without the resistor for the Lightspeed.
Before I do any real troubleshooting, I just wanted to check and make sure that this really does work for other folks. If not, I'll find some other way, or just ignore it. I can certainly live without a reading when the key is on the right position, since I only use that during runup, and since the Lightspeed just doesn't drop any rpm on a "mag check"
Thanks,
Rusty