On Tuesday, December 31, 2019 at 10:55:40 AM UTC-6, Aurelien wrote: > > Hi, thanks for reply. > > Ok i understand for using that need a DAC before this unit, but i have > some working output with direct connection to the cape 0/24v output. > > I have ordered a second unit because i'm unsure at start, so first unit is > 0/24v to +-10v and the second unit is 0/10v to +-10v i have also a oldest > DAC 0/24v to 0/10v so i can test that you suggest, but i think this does > not change the PID negative range problem. > > Br >
Depending on the frequency response of the isolator amplifiers (which is expecting DC voltage) 24V PWM signal connected directly to the isolator sometimes will work since low frequency response is synonym to a low pass filter, but if the isolator has high enough frequency response, the KBMG might went berserk because it got some ripple at its input. With PID you need a correct feed back signal from the motor/spindle to determine the speed for the HAL controller algorithm to work. I would definitely disable it if I were you.It is more than a can of worm in your hand. -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/machinekit/8aa06fe1-35c1-4301-b35b-91e531649c4a%40googlegroups.com.
