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Acc24E3 & Pbrick with analog feedback (sincos)
#1
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 ?

Thanks.
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#2
This feature is available on the ACC-24E3 with the analog mezzanine only - it is not available on the Power Bricks. The setup for these are the same as the primary encoder inputs but the ADCs are at:
Gate3[i].Chan[j].AdcEnc[2]
Gate3[i].Chan[j].AdcEnc[3]
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#3
C O R R E C T I O N :
The Power Bricks do have this feature.
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#4
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 ?

Thanks
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#5
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[i].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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#6
Thank you Steve,
I'll test it in some weeks at the customer plant.
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