Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: buffedupboy on July 23, 2020, 04:24:14 AM

Title: Strange speed control problem
Post by: buffedupboy on July 23, 2020, 04:24:14 AM

I had finally managed to install a new BOB to a new inverter and have it all working on mach3. However for whatever reason suddenly the speed control does not want to work! When I switch the spindle on, it spins up to the minimum frequency that was set on the inverter. I've noticed that there is no voltage on the avi+ on the BOB. Moving the SRO% does nothing. If I set the minimum PWM to 100%, the spindle spins up to it's set maximum which is 400Hz. I have observed a 10V output on the avi+ which is the right thing. Same goes for if I set it to 50%. However sliding the SRO% still does nothing in both scenarios....

Title: Re: Strange speed control problem
Post by: buffedupboy on July 23, 2020, 04:29:17 AM

Sorry admins, please remove this... I just found the answer to my self inflicted stupidity....