Bill,
It has been a while, but from what I recall of my problem with the Renesis CAS was that the output voltage was too high and would overpower (technical term) the EC-2. The solution was to install a zener diode and resistor in the CAS circuit (values determined by trial and error).
FYI, I converted my old style CAS to the crank-mounted CAS. Without knowing any better, I fabricated the CAS bracket out of 4130 (didn't want any failures on this part). Turns out, any ferrous metal nearby the CAS will corrupt the signal. I stumbled across that bit of information in the Renesis shop manual. It mentions that you need to keep the CAS clean of road grime and metal particles. So, I made a new bracket out of aluminum and it cured that problem. Live and learn!
Mark S.
On Sun, Sep 27, 2009 at 10:15 AM, Bill Bradburry <bbradburry@bellsouth.net> wrote:
Rino,
What exactly is it about the Renesis crank angle sensor signal that the EC-2 can not handle?
Bill B
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Rino
Sent: Sunday, September 27, 2009 11:02 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] EC3 Controller
Anyone had a problem with the Renesis crank angle sensor and had to change it. I may have to get a new crank angle sensor, but first I want to check with you guys.
Tracy is probably gone to Colorado, maybe someone got this problem before.
I cannot get full power on my Renesis for takeoff on Controller A. Seems like controller B works OK.
It is not the fuel mixture, I tried that. Actually, when the throttle is wide open the mixture display goes up and down rapidly, from full lean to full rich and the engine surge.
I had a similar problem when I first installed and started the Renesis. I had the EC2 controller then and had to get the EC3 to fix the problem. Now it is coming back to me on the EC3, I think. The problem then was with the crank sensor, the EC2 could not handle the sensor signal at more than about 5000 rpm.
I think the problem started progressively during the last few hours of flight, at first I thought it was a fuel mixture problem and was trying to ajust for that but now it is not a mixture problem. Since the controller B has NO temp. sensor and works ok, I wonder if it has anything to do with that problem on controller A.
Renesis powered Glass Goose
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