I am tweaking my Emco 120P lathe that is driven by Berger-Lahr 5-phase stepper motors and Oriental Motor Vexta UDX5128NA drivers. Step/Dir is supplied by a Mesa 6i25. I want to know what maximum velocity I can reliably get from the motors. I have run them at 90ipm max for some time and have never had a problem. But we want to do some movements that require higher speeds (140-150 ipm) and I am wondering if I crank up the step pulses can they handle it.
I turned up the parameters in my .ini file in order to step at 150ipm and I get what I think is good movement. I moved around randomly and also in specific increments and don’t see any error on the DRO. What tests can I do to verify that the machine can RELIABLY handle this speed? The relevant section on the step/dir timing from the Vexta driver manuals are here: http://bgp.nu/~tom/pub/vexta-1.pdf and http://bgp.nu/~tom/pub/Vexta-2.pdf My current .ini settings are: [DISPLAY] MAX_LINEAR_VELOCITY=2.5 [TRAJ] MAX_VELOCITY=2.5 [AXIS_0] MAX_VELOCITY=2.5 MAX_ACCELERATION=50 STEPGEN_MAXVEL=3.125 STEPGEN_MAXACCEL=62.50 DIRSETUP=10000 DIRHOLD=5000 STEPSPACE=5000 STEPSPACE=5000 STEP_SCALE=10159.997 AXIS_2] identical to AXIS_0 (except for “-“ on STEP_SCALE) ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
