Mailing List flyrotary@lancaironline.net Message #66020
From: Finn Lassen finn.lassen@verizon.net <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: EC3 software for Renesis RX-8/LS2 coils fixed and uploaded
Date: Tue, 7 Jul 2020 10:27:44 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
I'm fairly sure the backup CAS sensor input does go the the CPU chips. TP2?

";09-04-03  ADDED B CONTROLLER LOGIC TO USE 30 DEG EARLIER TIMING ON BACKUP CAS IF PRESENT.
...
;05-12-10  MODIFIED 0xB1 TO USE THE SAME TIMING ON BACKUP CAS AS PRIMARY  THIS IS FOR LS-2-7 ENGINES.  MUST TEST!!!!!
;Found error in B1 tp2 rout & fixed.  Runs OK now."

BUSENSOR    EQU    0x00        ;0 = NO BACKUP SENSOR, 1 = BACKUP INSTALLED (0xA8,0xA9,AB,AD,B1,B2,B4 0-200 ENGINE ONLY)

Looks like it's a programmable option.
Seems I've read elsewhere that is has to be mounted 90 degrees earlier than the main CAS.
I was going to look into that at some point. Other than the output switching relays, the CAS is pretty much the only single point of failure.
I tried to Google it but didn't really find any evidence of RX-8 CAS sensor failures. However, can be bought as a spare part ...

Perhaps someone out there has already implemented it and can tell us how. (Automatic or require a switch?)

Finn

On 7/6/2020 7:21 PM, A RICHARD GOLDMAN argoldman@aol.com wrote:
Additionally I think there is an input for a second CAS something tells me that that was for future and it goes nowhere. Any thoughts?
Rich

Sent from my iPhone

On Jul 6, 2020, at 5:33 PM, Stephen Izett stephen.izett@gmail.com <flyrotary@lancaironline.net> wrote:

Hi Rich.
What’s the RMS?
I have had the same question re knock input.

Steve Izett

On 7 Jul 2020, at 3:38 am, argoldman@aol.com <flyrotary@lancaironline.net> wrote:

Hi Fin, and all

Been  pouring over the schematics etc. for ec-3 and em-3 that have been posted.
At the outset let me confess that I am a rank dyslexic beginner at reading (and understanding) schematics.

I have a ec-3 and em-3 which my records show that I purchased in April of 2010.
Reading through the documents, it seems like the only change he made with the  6/13/12 update was to substitute a .001uf cap for existing at C28. Was the only change. For what reason was it done and is it suggested to make that modification.

I also noticed that he has an input lead pin 38 IC1 for a knock sensor.

Was there a software update between when I got mine and when he stopped shipping. Is it available and is it significantly important. Was the knock sensor included in that upgrade?


HELP!!!  I'm learning just enough to become dangerous (mainly to my psyche) as I near the engine installation and testing (probably early next spring or with the weather we have been having--mid winter. (Chicago)

Any suggestions (other than to can the RMS (already installed)) to soothe my psyche?

Thanks again

Rich





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