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Author Topic: Viper ESC and Speed 400  (Read 1973 times)

glyn44

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Viper ESC and Speed 400
« on: February 02, 2017, 12:05:12 pm »
just read the instructions for a viper ESC, it states:


"Make sure your motor is fitted with two motor capacitors (0.1uf) one from each terminal to the can."


My motor is a speed 400, but from its data sheet I can see no mention of these being factory fitted, and they are certainly not visible anywhere. So do I need to fit them? If they are for suppression then as I am using 2.4 Ghz I wasn't going to bother.


Clarification would be most helpful, as I do not have any and would need to purchase some.


Kind regards, Glyn.
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Tug-Kenny RIP

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Re: Viper ESC and Speed 400
« Reply #1 on: February 02, 2017, 12:15:41 pm »

It does help to remove  'glitches'  occurring, as it smooths out spikes caused by the motor.

ken
 
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Stan

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Re: Viper ESC and Speed 400
« Reply #2 on: February 02, 2017, 12:47:02 pm »
Hi Glyn it is advisable to fit these capacitors to the motor terminals and the motor can and one across both terminals making 3 in total. Many years ago also a earth wire from the motor can to the prop shaft.Any generated interference from the motor would go straight to earth.P/M sent to you if you wish will send you 3 capacitors






Stan. :-))
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Netleyned

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Re: Viper ESC and Speed 400
« Reply #3 on: February 02, 2017, 02:33:24 pm »
Good practice as Stan says.
Unsuppressed motors may not interfere with
2G4, but other pond/lake users may be on 27
or 40 megs and you could interfere with them.
Good Practice and Good Manners :-))


Ned
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Stan

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Re: Viper ESC and Speed 400
« Reply #4 on: February 02, 2017, 04:05:28 pm »
HI Glyn I gave posted a picture showing how the caps are soldered to motor can. You will need a very hot iron to carry out this operation. The capacitor in the middle is fixed between the motor terminals.

Stan.
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glyn44

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Re: Viper ESC and Speed 400
« Reply #5 on: February 02, 2017, 04:24:23 pm »
Ok Guys many thanks as always.
I like to be polite so I'll get on with it soonest. Thanks for the picture Stan, most helpful. Thanks for the offer as well, but I have a pal who will have some, I'm not in any particular hurry.
Thanks again.
Glyn.
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John W E

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Re: Viper ESC and Speed 400
« Reply #6 on: February 02, 2017, 04:57:35 pm »
One more pic showing how the caps are soldered to motor can  :-))

john
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