2013/7/12 propcoder <[email protected]> > Maybe someone knows where to find tested and working schematics? > > I need to control five Yaskawa Sigma-5 servo drives. I am planning to > control them in velocity mode, analog input (zero-centered, max +-12V) with > LinuxCNC + MESA 5i23 using higher frequency PWMs. > Strange thing is that I can't find +-12V power supply terminals which > would be useful for such converter. I am about ordering small DC-DC > converter 24V to -9V, +9V: > http://www.farnell.com/**datasheets/1707820.pdf<http://www.farnell.com/datasheets/1707820.pdf> > > I found schematics of PWM to analog converter which uses two digital > optocouplers. 5V PWM signal isolated and transfered to +-10V PWM and > filtered by RC circuit. I like this idea, but can't find the page anymore. > I started to draw it by myself (picture attached). I understand I would > need faster optocouplers. Any recommendations? >
IMHO using Mesa 7i48 or something similar might be easier and total cost (including time, spent on creating your own solution) also should be considered. -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
