flyrotary@lancaironline.net Mailing List Archive

Jeff,

If you are using the gear driven distributor style CAS with a controller set up for that, you should not need to add the resistors. I am using two Renesis CAS with a 12 and a single trigger tooth wheel on the eccentric shaft of a Renesis engine with an EC2 set up for the gear driven CAS. To use this combination, a 1K resistor has been added at the CAS end of the harness between the two connections to each CAS. My reference to adding a resistor from the CAS to ground may be incorrect. The resistors are added between each CAS output and the CAS return. I have not verified whether CAS return is in fact ground. In effect, a resistor is connected from pin 4 to pin 22 and another resistor is connected from pin 23 to pin 22. The green wire of my gear driven CAS is not ground .

Steve

From: Rotary motors in aircraft [flyrotary@lancaironline.net] on behalf of Jeff Whaley [jwhaley@datacast.com]
Sent: Friday, November 09, 2012 7:38 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Renesis CAS & EC-2 upgrade? ... Which CAS wire needs the 1K resistor?

Steve:

Looking at my CAS-to-EC2 wiring diagram, there are Red, White and Green wires connecting to the EC2 at pins 4, 23 and 22 respectively.

Assuming the Green is Ground, are you connecting a 1k resistor across the Red and White wires? – Or are you “Terminating” both the Red and White with 1k to Ground?

Are you doing this inside the CAS, inside the EC2, or adding it to the wire harness?

Please clarify … thanks

Jeff