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Old 08-17-2009, 04:00 AM   #1
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Default KO PROPO VFS-1 quick question

Hi,

I just received a KO PROPO VFS-1 speedie in a trade. I am currently putting this into my MI3 for racing stock class

The speedie has the KO Ultimate Shotki Diode installed but not Capacitor, or as they call it 'Ultimate Condenser'

Is this required for the speed controller? It is written in the instructions that it must be used but im guessing the original owner was not using it.

any info would be great

Cheers
John
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Old 08-17-2009, 10:29 AM   #2
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i tried it without and the ESC never exceeded 120 F so it worked OK without
the cap. I didn't even use the shottky diode. Looks much cleaner without it.
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Old 08-18-2009, 02:19 PM   #3
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Ok, thanks for the reply.

I will just monitor the temp's, I run at night time so it should be ok.

John
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Old 08-18-2009, 02:42 PM   #4
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The cap is supposed to help ease voltage drop under load and keep the ESC cooler. It does help, but you can run without it. The diode is meant to protect the ESC from back EMF during braking. If your running 27T and don't use a lot of brakes, you should be fine without it...

BTW: You definitely want to find someone with a programmer for these things. For 27T racing it's a must to turn down the drive frequency (especially in the lower steps). This really adds punch to stock motors. KO has some good profiles to start with on their website for different types of racing. Of course their hard to follow cause each step is off by 1 (step 0 in their list = step 1 when programing the ESC)...
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