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Electric Motors, Gearing, Speed Controls, Gyros, Receivers, and Other Electronics Discussion Electric Motors, Gearing, Speed Controls, Gyros, Receivers and Other Electronics Discussion |
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08-26-2014, 07:45 PM | #1 (permalink) |
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Join Date: Dec 2011
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Timing and PWM for Zpower Z30 / Tonix-X?
Anyone know where to start for timing and PWM on one of these? I'm running it with a YGE on a 600 size helicopter and I get occasional "stuttering" with the FBL governor (the tail will also twitch when this happens). Adjusting the timing to 18 degrees fixed this somewhat but it still happens (auto timing was worse).
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08-26-2014, 08:26 PM | #2 (permalink) |
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Wish I could help.
I have a Z-Power/Tonic-X Z20a 1470KV and have the same question. --Elisabeth
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Granny's House of Choppa-R&D Division 2 Rockin' Gaui Hurricanes- 6S 500 class. 1 FB, 1 FBL Gaui X2 & X5- MKS,Scorpion, Castle and lotsa good stuff 2 FrankenHeli 450s, Axe 100SS, Futaba |
08-31-2014, 10:55 AM | #3 (permalink) |
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Join Date: Jan 2010
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This might help. Its a formula for determining motor timing (PWM).
Kv x Volts (nominal you are using) x Pole count / 20 I found it in this post. https://www.helifreak.com/showpost.p...71&postcount=4 And the whole thread for easy clicking. https://www.helifreak.com/showthread.php?t=249106 So 1110kv x 22.2v x 8 poles (I think the Tonic x has 8) / 20. I get 9856.8 and the closest setting would be 8khz PWM. Atomic whats your PWM setting? If its 8khz and you get stuttering, maybe try 12khz? I used a CC ice 75 with that motor and had no problems with 8khz PWM. As for timing advance, Castle escs automatically set a range of timing from low to high and you simply select within that range, so a setting of 5 is not 5 degrees timing advance, its simply an index, halfway between 0 and 10. 18 degrees timing advance sounds a bit high, thats what was recommended by the Protos 500 manual which also comes with a YGE. I ended up lowering it first to 12 degrees, then 6 and found both the esc and motor were much cooler after a flight. 18 degrees is basically pedal to the metal IMHO. Someone correct me if I'm wrong but I think a setting of 6 degrees timing advance on a YGE wouldnt necessarily harm anything, its a too high setting thats cause for concern. More good YGE info here: https://www.helifreak.com/showthread.php?t=526935 I'm no expert btw, just trying to help. |
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