|
|
On Sun, 3 May 2009 21:20:25 -0400
"Ed Anderson" <eanderson@carolina.rr.com> wrote:
Hi Don,
<snip>
Not using Tracy's EM-2, so can't help you there. However, if Tracy
suggested hooking up your EM-2 that way to "make the signal stronger" then
he's the designer - but, if suggested by anyone other than Tracy, I would be
somewhat hesitant to do it. I would suspect that since the serial port
signal appears to work for most - at its normal signal level that the
"Stronger signal" approach may be a brute force method to overcome problems
that might be associated with electrical noise. But, again, if Tracy
suggested it - then its worthwhile trying.
<snip>
There is an input to the EM2 for the injector pulse signal in addition
to the serial data input. Normally rotor 1 primary is used (like Don has
it connected). RPM and fuel flow calculations are made from this
signal. I think at some point Tracy had tried to use the serial port to
transfer that data to the EM2 but had problems with inconsistent
reading, probably due to delays getting the data packaged up in the
serial data stream.
Bob W.
--
N93BD - Rotary Powered BD-4 - http://www.bob-white.com
3.8 Hours Total Time and holding
Cables for your rotary installation - http://roblinstores.com/
|
|