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linear motor tuning with 1nm scale


Ashish Navale
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Dear Sir,

 

I want to tune linear motor having scale 1nm.

Details as below ...

Pole pair pitch=32mm

encoder resolution = 1 nm (Having quadrature pulse output )

 

i did following settings in encoder conversion table.....

I8000=$378000

I8001=$018000

I8002=8000

I8003=$3F8000

I8004=$010008

I8005=240

I103=$3503

I104=$3503

I183=$3506

I170=1

I171=125000

 

is it ok or anything else i have to do...........

current loop execute properly...

but while auto tuning it shows error no enough points gathered.....

 

Kindly guide me .......

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Dear Sir,

 

I want to tune linear motor having scale 1nm.

Details as below ...

Pole pair pitch=32mm

encoder resolution = 1 nm (Having quadrature pulse output )

 

i did following settings in encoder conversion table.....

I8000=$378000

I8001=$018000

I8002=8000

I8003=$3F8000

I8004=$010008

I8005=240

I103=$3503

I104=$3503

I183=$3506

I170=1

I171=125000

 

is it ok or anything else i have to do...........

current loop execute properly...

but while auto tuning it shows error no enough points gathered.....

 

Kindly guide me .......

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The correct value for the data you have provided would give 128 million counts per commutation cycle. This is too large for the Ixx71 variable. You will need to process your encoder as a parallel word in the ECT and use the shifting to reduce the resolution for commutation. Contact our technical support group and we can send you an application note describing how to do this: support@deltatau.com.
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The correct value for the data you have provided would give 128 million counts per commutation cycle. This is too large for the Ixx71 variable. You will need to process your encoder as a parallel word in the ECT and use the shifting to reduce the resolution for commutation. Contact our technical support group and we can send you an application note describing how to do this: support@deltatau.com.
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