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Old 03-16-2018, 11:19 AM   #1 (permalink)
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Default Issue calibrating end points on esc with jeti dc radio

As title really, Iíve got linear curve on the tx and end points max (0-100). When I put stick to top and then power up esc I donít get any beeps indicating that max throttle has been registered, I do get beeps when I move stick to bottom however. As a result I have dead stick until about 20% and then motor shutters and then starts up.
Worked fine on previous Futaba radio, Amy suggestions?
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Old 03-16-2018, 12:09 PM   #2 (permalink)
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Quote:
Originally Posted by chriscorbett View Post
As title really, Iíve got linear curve on the tx and end points max (0-100). When I put stick to top and then power up esc I donít get any beeps indicating that max throttle has been registered, I do get beeps when I move stick to bottom however. As a result I have dead stick until about 20% and then motor shutters and then starts up.
Worked fine on previous Futaba radio, Amy suggestions?
What brand/model ESC?
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Old 03-16-2018, 12:14 PM   #3 (permalink)
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Sorry that would help! Castle creations Talon 120
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Old 03-16-2018, 12:21 PM   #4 (permalink)
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From memory:
Normally you would bring the endpoints in quite a bit...
Of course make sure you have a linear curve from 0 to 100
1. set the throttle high endpoint down to 75% or less
2. set the throttle low up to 25% or more.
3. move the throttle stick to full
4. Power up the ESC with the flight pack
(motor has to be connected to hear the beeps so make sure to take the blades off for safety)
5. With the throttle stick at full and ESC power up, move the endpoint on the transmitter up until you hear the beep from the motor.
6. move the throttle stick to full low
7. bring down the throttle low endpoint until the ESC sings its little arming tune.
8. Unplug everything.
9. Put your blades back on
10. go fly
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Old 03-16-2018, 01:00 PM   #5 (permalink)
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Castle has specific low/high values it is looking for. If you are using a FBL Controller you have to think of throttle setup as two steps, transmitter to FBL unit (throttle input) and FBL unit to speed controller (throttle output).

What is your exact setup?
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Old 03-17-2018, 11:32 AM   #6 (permalink)
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For the majority of the most popular ESCs, calibration is pretty simple. You first calibrate the transmitter throttle channel Subtrim and Travels so you end up with -100, 0, +100 in the FBL unit throttle channel when using a 0-25-50-75-100 (or 0-50-50-50-100) throttle curve. Then you calibrate the ESC at high stick, wait for the prompt, calibrate at low stick, wait for the prompt, and that's it.

Castle is different. Before you perform the Castle calibration, you need to decide whether on not you want to check the Autorotation Bailout box. The travel numbers end up different with that box checked or unchecked. Then, you need to bring the throttle channel high and low Travels to around 50%. When calibrating to the Castle ESC at high stick, you increase the high Travel until you hear the tone (from the motor), and increase the Travel another 1 or 2 points up. I used to end up with around 88% Travel at high stick. You follow the same procedure at low stick. With the Autorotation box checked, I used to end up at around 120% Travel at low stick.

Good luck
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Old 03-17-2018, 02:03 PM   #7 (permalink)
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Quote:
Originally Posted by pctomlin View Post
Castle has specific low/high values it is looking
can we adjust with dpelletierís method, or should we use the numbers castle provides?
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Old 03-17-2018, 02:52 PM   #8 (permalink)
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Quote:
Originally Posted by etherbatxx View Post
can we adjust with dpelletier’s method, or should we use the numbers castle provides?
dpelletiers method works for Castle. This should set the high throttle value below, and the low throttle value above what the Castle ESC looks for. Always remember to add a couple of extra clicks on the adjustments to ensure a solid high and low throttle limit. If you have something like a Brain FBL unit, you can just set panel 12 throttle limits to 1073 and 1960 (I use multi-rotor in the ESC with Brain governor) and be done once panel 5 transmitter setup has been done properly.

In Castle Link program mouse click on the blue ? beside vehicle type and it will give you an explanation of each vehicle type throttle setup (airplane, helicopter, multi-rotor) and what high and low throttle values the ESC is looking for.
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