Lars Andersson wrote: > I have a G540 that would not step slower than 150 Hz on the Y axis driver. 3 > other drivers stepped as slowly as I cared to try. > I originally had 2.6us step pulses obeying the data sheet requirement of > 2us. > Increasing pulse length to more than 5us fixed (or masked if you wish) this > issue. The tool to use is "setp parport.0.reset-time 5000" > I'll bet that the way you have it set up, your step pulses are turning the LED in the drive OFF to step, and leaving the LED ON between steps. This is probably a difference in the sensitivity of the optocoupler device in the Gecko.
You can put a meter across the step and common inputs to the drive, while it is not being asked to move. Normally, it should have minimal voltage when not stepping. Since the G540 probably has the common terminal permanently wired to either gnd or 5V, it would be easiest to change this in the hal files for step polarity. Jon ------------------------------------------------------------------------------ 10 Tips for Better Web Security Learn 10 ways to better secure your business today. Topics covered include: Web security, SSL, hacker attacks & Denial of Service (DoS), private keys, security Microsoft Exchange, secure Instant Messaging, and much more. http://www.accelacomm.com/jaw/sfnl/114/51426210/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
