Rudy du Preez wrote: > I tested a Nema 23 two stack stepper (bipolar) in closed loop with EMC2 > lately. The stepper driver is a Gecko 251 at 45V and 3A. The encoder is an > AMT102 connected TTL to a MESA 5i20 (P2) through a 7i33. The G251 step/dir > signals are connected directly to the 5i20 (P4). The objective was to see > how the motor performs at high speed in closed loop control. >
Cool! Did you run the stepper in velocity mode or position mode? > Is this maximum speed just the limit of the hardware, ie. driver and motor > at 45 V and 3 A? The pulse length is sufficiently small at 2 us. The base > thread is 20000. > With a 5i20, you generally don't use a base thread - it's in the FPGA. -- Sebastian Kuzminsky ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
