rigo59
 lvl.1
Germany
Offline
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fans3a39ffba Posted at 2017-2-11 11:03
I am not having any luck calibrating the ESC's with the new Assistant 2 ( V 1.0.9-2) The procedure worked fine in the previous version, but now, after completing the ESC calibration, the motors start up in SEQUENCE, 1 after another until all 8 motors are going. I don't dare try and fly this.
I really wish the instructions were better. Now the ESCs are going into program mode rather than accept the calibration.
I was stuck in the same problems as described above:
The motors started 1st, 2nd, .. one after an other. This was confusing and was not what you expect from an idle system is started up. I measured the output of the N3 OUTPUT PIN "M1" with an oscilloscope. DJI uses a 400 Hz signal, the pulswidth is 950 usec. OK, this was the solution for me, and explained why the motors started spinning already during startup: My ESCs had been already calibrated (without using N3) before. The lower threshold was a pulswidth of 920 usec. Heureka! The solution was to calibrate the motors in a way that the lower threshold was above 950 usec.
First I planned to perform this calibration without the functions provided by DJI Assistant 2 and the N3.
But it worked with N3 in this way:
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Calibrate the ESCs using N3.
1) connect the ESCs to the N3 flight controller. Connect both with a (separate or common) power supply. (Remark: In my case, the motors start spinning, 1st, 2nd, ... one after another.)
2) in DJI Assistant 2 (V1.0.9-2) go to "Basic Settings" and then select Panel "ESC Settings"
3) click "Reset" button. (just to be sure to have a unique starting point for the procedure)
4) click on "All" button in the section "ESC Calibration". (Remark: My motors were still spinning)
5) Confirm that the propellers are dismounted
6) In window "Pull the ESC plug ...": Here I pulled the 3-wire ESC plugs (sig,+,GND), not(!) the ESC power supply! In my case, I pulled all 6 plugs at once (Hexacopter).
7) Klick next and follow all steps in the subsequent windows.
After these steps unplug the power suppy and plug it in again afterwards.
The motors are no longer spinning.
Remark: For the motor test in "Basic Settings" Panel "ESC Calibration" I had to select the value "10%" to perform the test. 5% didn't work.
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Hope this helps.
(I am currently setting up the system with Futaba T14SG / Futaba R7008SB connected to N3 using SBUS) |
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