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Old 10-08-2010, 07:28 PM   #1
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Default GTB brushless dies at full power then comes back? Programming issue?

I have an old Novak GTB brushless system in my car with a Spektrum sr3000 receiver. When I punch the throttle the motor stops running and my Spektrum receiver light goes out. Then about 3 seconds later the receiver light comes back on and the motor works again. But when I slowly roll on the throttle up to full the motor does not die.

What could be the problem? The ESC is set to factory settings.
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Old 10-08-2010, 09:25 PM   #2
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Sounds like you need to add the Spektrum Rx cap. The voltage to the Rx is drooping when you grab a handful of throttle, causing the Rx to "reboot". The Rx capacitor should stop this from happening.

http://www.spektrumrc.com/Products/D...ProdID=SPM1600
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Old 10-09-2010, 07:11 AM   #3
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Because I am not part of Novak's technical support group, I suggest you email [email protected] with your question, Our regular CS/Tech Support hours can be located here. Before emailing, take a moment to review the instructions (trouble-shooting guide) originally included with your Novak Item:

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Please make your initial email as detailed as possible. Include:

~ speed control (brand/model)
~ motor (brand/wind)
~ number/type of cells
~ battery, brand (c rating/capacity
~ rotor (old/new)
~ connectors used
~ servo (brand/model)
~ radio system (receiver/transmitter)
~ vehicle & gearing
~ warranty claim?
~ lipo cut-off, on/off
~ any external modules (BEC/brand, Glitch Buster)
~ other important info: water damage, corrosive chemical sprays, excess heat, etc
The more information you provide in your first email, the more quickly tech support can offer you assistance.


Quote:
Originally Posted by macnkitty2002 View Post
I have an old Novak GTB brushless system in my car with a Spektrum sr3000 receiver. When I punch the throttle the motor stops running and my Spektrum receiver light goes out. Then about 3 seconds later the receiver light comes back on and the motor works again. But when I slowly roll on the throttle up to full the motor does not die.

What could be the problem? The ESC is set to factory settings.
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Old 10-09-2010, 04:33 PM   #4
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Quote:
Sounds like you need to add the Spektrum Rx cap. The voltage to the Rx is drooping when you grab a handful of throttle, causing the Rx to "reboot". The Rx capacitor should stop this from happening.
I think that's what it is. I just plugged up a 7.4v Lipo and when I punch it to full throttle the receiver doesn't die. I guess I just need to get that receiver capacitor.

Any ideas where I can get one?
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Old 10-09-2010, 04:49 PM   #5
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http://www.amainhobbies.com/product_...tage-Protector
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Old 10-09-2010, 08:49 PM   #6
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Either that or your LHS. If your LHS doesn't have one and you need one "now" then go to an electronics store and pick up a 4700uf 10V or 16V electrolytic capacitor and put a servo lead on it. Just pay attention to the polarity. Plug that into the batt or a spare channel on your receiver.
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Old 10-10-2010, 09:22 AM   #7
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Quote:
Originally Posted by macnkitty2002 View Post
I think that's what it is. I just plugged up a 7.4v Lipo and when I punch it to full throttle the receiver doesn't die. I guess I just need to get that receiver capacitor.

Any ideas where I can get one?
Glitch Buster Capacitor

Radio problems have been an issue forever; Novak started selling these 30 years ago---they were called "Stutter Stoppers" then.
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