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Acc24E3 & Pbrick with analog feedback (sincos)


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Is it possible to connect on Acc24E3 or Pbrick with sincos option, à second sincos on the pins named "altsin", "altcos" (u,v,w,t pin) ?


On some encoders there is 2 sincos signals, one with several period/rt, the second with one périod/rt. I would like to phase the motor with the second sincos connected on altsincos pins.

Is it possible ?

How do that ?



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Thank you Steve, that's wonderful.


Could you tell me the best way to get a position from AdcEnc[2] & [3] ?

I suppose it's with EncTable[n].type =4, but could you give me the full configuration ?



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I will need to research this a bit to get the exact settings needed - but fundamentally a type 4 entry with the following:

EncTable[n].pEnc = Sys.Udata[x].a // the next 8 consecutive registers must always be zero

// to simulate the Encoder status/phase/servo capture registers

// to keep the quadrature count at zero

EncTable[n].pEnc1 = Gate3.Chan[j].AdcEnc[2].a

EncTable[n].index3 = 3 or 7

EncTable[n].index5 = 1

EncTable[n].ScaleFactor = set to equal the number of counts/rev of the actual commutation encoder


And then appropriately set the AbsPhasePos elements to look at this entry.

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