xiaomupeng2009 Posted March 30, 2011 Share Posted March 30, 2011 encoder line ｃｏｕｎｔ (um) ? electrical cycle (mm) ? phase position resolution ? I want to ask what are those meaning for linear motor? please tell the detail! thank you! My grating resolution of my linear motor is 50nm,it is to say that 1VM=20cts! Link to comment Share on other sites More sharing options...
JayL Posted March 30, 2011 Share Posted March 30, 2011 Hi, encoder line should be encoder line spacing, which, in your case, should be 50nm. electircal cycle (or commutation cycle) means the distance between your poles. Phase position resolution is the smallest unit of your hardware count. Example : A linear brushless motor has a commutation cycle of 60.96 mm (2.4 inches). It has a linear scale with a 20-micron line pitch. The scale is used for both commutation and servo feedback. The commutation uses the hardware counter. There are 200 hardware counts per millimeter (5 microns per count), so 12,192 hardware counts per commutation cycle. Ix70 should be set to 1, and Ix71 should be set to 12,192. encoder line ｃｏｕｎｔ (um) ? electrical cycle (mm) ? phase position resolution ? I want to ask what are those meaning for linear motor? please tell the detail! thank you! My grating resolution of my linear motor is 50nm,it is to say that 1VM=20cts! Link to comment Share on other sites More sharing options...
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