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Interconnection diagram Fig 1.
Now that you have everything connected, let’s connect the ESC via USB port to the computer. The “Connection
Status” in the bottom left hand corner of the Castle Link software should turn green. The software will
recognize the type controller and firmware installed in it. It may ask you to update the firmware to the latest
version. Eventually you will need to do it so let’s click OK. Firmware will update.
Now click on the “Throttle” Tab; we want to go to Control Line for “Vehicle Type” this will enable both the
Governor and Brake simultaneously. “Throttle Type” = Governor Mode. No need for Throttle response.
Dropping down to the box labeled “Vehicle Setup Information” click on “Calculate Battery Volt” it will ask you
volt per cell and the number of cells. Input 3.7 v and 5 cells respectively. Now click “Enter Motor/Gearing
Inform” it will ask for number of Poles = 14 and input 1/1 gearing also it will ask for the Kv rating – in our
example it is 760Kv.
I have input three samples of “Desired Head SP” in RPM’s. These will be useful when programming the timer.
Now back to the box labeled “Governor Mode”. Since we are using the AXI 2826/12 and it has 14 poles, we will
use “Governor H”. If we were using, for example, a Plettenberg 20-16 with 10 poles we would need to set to
“Governor L”; this in effect evokes a different throttle curve. “Governor Gain” is next in the example - I have
selected High (35) gain. I have tested this set-up using Custom (45) governor gain with excellent result. This
function is really how hard the governor will try to hold the set RPM. One thing to watch for is the motor
oscillating if the gain is set too high.
“Head Speed Change” this is the governor response speed setting – be careful here and move slowly up in gain,
Custom (15) is still safe on my airplane listen to the Governor coming out of a hard corner, again listen for the
governor oscillating or chasing its tail as I have heard it described.
“Initial Spool-up Rate” is how fast the motor will reach full power from start – could be useful for setting up
take-off speed and acceleration to take-off. Also see “Motor Start Up power”
It should be noted that several folks use “Set RPM” with great results and find that this function makes the ICE
ESC. The Castle Creations folks have a set-up procedure for this on their Web page.
http://www.castlecreations.com/support/documents/set_rpm_governor_mode.pdf