[EMAIL PROTECTED] wrote: >Your bias is showing Jon. > >The m5i210 has been used before to run machines. Like any analog >servo system, you need to know how to tune the PID loops, but it >can and has been done. > >You are welcome to promote your products, but don't badmouth others >unless you are sure of your facts. > > > It WON'T run right out of the box. Remember the "boot" sequence we had to build into the PPMC driver? I assume there is no similar function in the emc2 driver for the 5i20. A quick perusal of the code didn't show it.
I am not "bad mouthing" the product, just stating that the UPC board and my PWM amps have been tested with the hal_ppmc.c driver, and made to work as a 3-part system. And, there are complexities, such as the "booting" sequence required to enable the FET drivers after coming out of E-stop. Also, you have to watch the duty cycle, and not exceed 99.5% or the drivers might go into undervoltage lockout because the bootstrap capacitors have discharged. All of these special cases are already built into the ppmc driver, and are known to work. Oh, if you are thinking this is using the ANALOG outputs of the 5i20, it is not. These people are planning to use the PWM output from the 5i20 to drive my somewhat peculiar PWM-input servo amps. So, this is a development project. Hopefully, it is entirely a SOFTWARE development project, and could probably be done entirely with a few HAL functions to implement the booting and duty cycle limits. This was in response to Greg Bentzinger's post, which ended : Since it sounds like the 5i20 with a few tweaks should be a good match >for Jon's Amps my shopping list is almost complete. > I'm pretty sure he is referring to my PMW-input servo amps there. Jon ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
