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Old 09-04-2003, 01:38 PM   #31
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Default extreme settings?

i got a question... during the June 8 TCS.. i programmed my VFS to all "1" for all 32 stages of the esc. i was running a monster pro in an F201 that had the high speed gear set (FDR of about. 5.96)

is there anything bad with doing this? (i knew i was in danger of burning the motor) but i did manage to finish 2nd in the D-main in my first ever TCS (not bad for a first time F201 driver).

actually ... i did BURN the motor.. but besides the motor ... is there anything else that can get damaged? batteries? the esc itself? i think the FDR had something to do with the burned motor, and not the programming on the esc. the car was PUNCHY AS HECK tho since i ran 1.179 GP3300s on it.

lastly... is anyone running the booster along with the capacitor that was provided with the esc? are there disadvantages or advantages to running one over the other? and what happens if i run both?

let me know.. thanks!
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Old 09-04-2003, 01:54 PM   #32
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Default Re: VFS-2000

Quote:
Originally posted by KO PROPO Staff

Discoloration in the com and brushes is a result of too low a setting in the drive frequyency, worng timing, or wrong brush set up.



Modified motors:
The rule for modified motors is not to go below 2000Hz or a FREQ setting of 17. Doing so will give you more power, but you run the risk of overheating and damaging the ESC.
If 17 was the minimum setting for mod, then 1 might be too low for stock. If your speed control was hot after that run then you should go higher on the setting for sure. Besides running the frequency that low means your sacrificing a little top end. At SoCal Raceway I have mine set at a maximum of 19 for my Monster Stock motor and SoCal is a tighter track than Tamiya. The other problem you’ll probably run in to is that when your motor gets hot enough to burn the brushes your going to notice a “fade” in the motor’s performance. This happens with any electric motor that overheats.
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Old 09-04-2003, 02:33 PM   #33
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Wink

Thank you
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Old 09-04-2003, 03:07 PM   #34
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Setting your VFS at a frequency of 1 does have its draw backs (runtime, brush wear, and excessive heat). You do get the punch but you pay the cost. It all comes down to personal preference. That makes this ESC unique. Now for mod, I would never recommend going this low. You would run into overheating the motor and the ESC and other problems.

Erik R., you have seen what the VFS can do to 3300 cells in a five minute race using a stock motor. Many people don't beleive me when I say that this ESC can do this to a stock motor.

It all comes down to tuning. Think of it as another gear ratio that you are working with.
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Old 09-04-2003, 05:04 PM   #35
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Yeah, I've run the VFS with a lower frequncy once with 3300's in stock. By the last minute my car started to dump. It wasn't dumping bad, but it was noticable.
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Old 09-04-2003, 06:23 PM   #36
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Default Question for KO staff member

I reciently purchased the Tamiya version of your VFS2000. I did not get the super shotki with it, but a standard shotki. The esc seems to work flawlessly, is this super shotki something I should add, or will the standard one be sufficient. BTW I run stock class, and this esc will never see a motor hotter than a 19T mod.
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Old 09-04-2003, 06:30 PM   #37
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Default Re: Question for KO staff member

Quote:
Originally posted by hobbipro
I reciently purchased the Tamiya version of your VFS2000. I did not get the super shotki with it, but a standard shotki. The esc seems to work flawlessly, is this super shotki something I should add, or will the standard one be sufficient. BTW I run stock class, and this esc will never see a motor hotter than a 19T mod.
hobbipro,
I would run two shotki diodes to be safe if you do not have the super shotki diode. When you run the two shotki diodes, stack them on top of each other.
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Old 09-04-2003, 07:27 PM   #38
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Is it possible to share the TRF program?
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Old 09-04-2003, 07:31 PM   #39
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Quote:
Originally posted by Kenneth Tan
Is it possible to share the TRF program?
Kenneth Tan,
If you have it you could share it.
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Old 09-04-2003, 07:47 PM   #40
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I mean can anyone share the TRF program?
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Old 09-04-2003, 08:22 PM   #41
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Stock (out of the box TRF program):

10-10-10-11-12-13-13-13-14-15-16-17-18-19-20-20-20-20-20-20-20-20-21-22-22-22-22-22-22-22-22-22.


Other TRF programs found on the Tamiya site.
http://www.tamiya.com/japan/products/49254trf2002esc/:

Stock (23T), High Speed:

15-15-15-15-15-16-17-18-19-20-21-22-23-24-25-25-25-25-25-25-25-26-27-28-29-30-31-32-32-32-32-32.


Stock (23T), Technical:

11-11-11-12-13-14-15-15-15-16-17-18-18-18-18-18-18-18-19-20-21-22-23-24-25-26-27-28-28-28-28-28.


Mod., High Speed:

17-18-19-20-21-22-23-24-25-26-27-28-29-30-31-32-32-32-32-32-32-32-32-32-32-32-32-32-32-32-32-32.


Mod., Technical:

17-17-17-17-17-17-17-17-17-17-17-18-19-20-21-22-23-24-25-26-27-28-29-30-31-32-32-32-32-32-32-32.


Sport Tuned, High Speed:

7-7-7-7-7-7-7-7-7-8-9-10-11-12-13-14-15-15-15-15-16-17-18-19-20-21-22-23-24-25-26-27.


Sport Tuned, Technical:

7-7-7-7-7-7-7-7-7-8-9-10-11-12-13-14-15-15-15-15-15-15-15-15-15-15-15-15-15-16-16-16.


RS 540, High Speed:

5-5-5-5-5-5-5-5-5-5-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25-26.


RS 540, Technical:

5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20.


KO PROPO Staff:

Could you share the stock KO program and the ones on your site like this becouse my PC can't open the files.

Thanks,
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Old 09-04-2003, 08:27 PM   #42
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Thanks!
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Old 09-04-2003, 08:29 PM   #43
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The stock setting for the Ko VFS is all 17.
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Old 09-05-2003, 05:06 AM   #44
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guys, is the tamiya TRF2002 ESC still available or do i have to go with the KO equivalent?

chuck
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Old 09-05-2003, 09:13 AM   #45
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If you go for the Tamiya one there is an other difference. You have no 7.2V fet servo lead.
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