Ashish Navale Posted January 7, 2015 Share Posted January 7, 2015 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 ....... Link to comment Share on other sites More sharing options...
Ashish Navale Posted January 7, 2015 Author Share Posted January 7, 2015 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 ....... Link to comment Share on other sites More sharing options...
steve.milici Posted January 7, 2015 Share Posted January 7, 2015 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. Link to comment Share on other sites More sharing options...
steve.milici Posted January 7, 2015 Share Posted January 7, 2015 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. Link to comment Share on other sites More sharing options...
Recommended Posts