I had trouble with this. Pins 13 and 26 on the TCU are the Tacho output. I
have feed TCU pin 26 to pin 2 on the Rotax Tacho and TCU pin 13 to Rotax
Tacho Pin 3 (Rotax Tacho Pin 1 is +12V). TCU Pin 26 is also connected (in
parallel) to pin 5 on the EIS . Both the Rotax tacho and the EIS appear to
display RPM OK.
Your note had me scanning the circuit diagrams I had produced to find that
they were not a perfect record of what I had done. So I had to spend a few
minutes to pull the panel off (again).
Ian Rickard #505 G-IANI (Very nearly ready o fly)
Europa Club Assistant Mods Rep
e-mail mods@europaclub.org.uk
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com]On Behalf Of Paul
McAllister
Subject: Europa-List: Tachometer connection for 914 to EIS
<paul.mcallister@qia.net>
Hi all,
I was wondering if someone out there who has connected an EIS to a 914 can
help with the tachometer connection. The Grand Rapids manual show a generic
912/914 connection, however when looking in the 914 installation manual it
shows two wires from the TCU for the tachometer. Is this what is used for
the EIS or is it done differently. ?
Thanks, Paul
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