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Author Topic: Servio motor Delta adas b2 Software and electronic gear ratio  (Read 4105 times)

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Re: Servio motor Delta adas b2 Software and electronic gear ratio
« Reply #60 on: March 24, 2018, 11:31:09 AM »
Hi there

Yes possibly there are a lot of scenarios that could work, but from the equation that I provided to you if you choose to set P1-44 ,and P1-45 both to an equal Number,
Then you are forcing the servo to run with an accuracy of .0001 mm, which is kind of Unreal.

Travel   175 mm
Reducer  10:1
Pulse /Revolution 17 Bit   160,000 
Desired accuracy      .001  mm

Gear Ratio = 160,000/(175/.001)*10/1=10     off course it is 9.41


Regards
jhonansaro
Re: Servio motor Delta adas b2 Software and electronic gear ratio
« Reply #61 on: March 24, 2018, 03:04:42 PM »
Hi,
the catch is that with an encoder count of 160,000 and no electronic gearing, that is numerator equal denominator then at 685 rpm the pulse rate
would be 1.82 MHz which is totally unrealistic. The evidence you have is that your controller can handle about 18kHz, a factor of 100 too slow!

Craig
My wife left with my best friend...
     and I miss him!
Re: Servio motor Delta adas b2 Software and electronic gear ratio
« Reply #62 on: March 25, 2018, 11:58:24 PM »
Hi,
just re-reading your post, you may note that the default encoder  is 2500 ppr or count of 10,000 per rev.
You could program it to 40,000 ppr or 160,000 count per rev but why? You gain a whole bunch of resolution
which you can't use. Don't bother with it....an encoder count of 10,000 gives you plenty as is and should be in
the sweet spot for signaling if only the controller would play ball.

Has the supplier of the controller come back to you yet?

Craig
My wife left with my best friend...
     and I miss him!

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Re: Servio motor Delta adas b2 Software and electronic gear ratio
« Reply #63 on: March 26, 2018, 12:09:01 PM »
You could program it to 40,000 ppr or 160,000 count per rev but why?

just to see, that it is also not working.
anything is possible, just try it.
if you find some mistakes, in my bad bavarian english,they are yours.