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Hello,

Is there anyone here who has documentation for retrofitting a Fadal 4020 with an umbrella? I'm willing to pay for the information provided... I'm going with an EtherCAT version. But the information will help me speed up the project completion time. I have a Fadal that I use daily... but I'm tired of its DC quirks.

I am controlling a robotic arm using a few servo motors
Sometimes it is necessary to disable the motors and move the arm manually. In this case, I want to receive the position change from the motor encoder.
Does anyone know how to do this?

Yes, see: forum.linuxcnc.org/18-computer/48079-can...cnc?start=200#273554

Thank you very much for your input, I appreciate your advice. I have the following mesa cards: 5i25T + 7i77 in a fiber laser cutter still in development, 7i80hdt in a cnc router, 7i93 +7i33ta, this configuration was the first time used a mesa card Hurco km3p knee mill and the last one is the 7i96s. The thing is that each card is in a machine and the only one "available" is the 7i96s. I just wanted to see if I could use those cmc drivers in a new project, a plasma retrofit.

thanks !!

Try a freight forwarder

www.shipito.com/

I’ve used this mob a few times to get stuff Down Under.

Thanx a lot again, it works finally! I have improved mesa-modbus to IFM bus and machine running

There is similar code here (in custom.hal)

forum.linuxcnc.org/38-general-linuxcnc-q...44-mpg-choppy-motion

or google LinuxCNC MPG ahl

I already tried that and it damaged my 7i96S, I think it's very risky. The best is the solution that PWC recommends, that's how I did it and I have no problems controlling sevos with drivers that use +-10 for their control. The only thing you need to use is firmware where you replace the STEP DIR with outputs for PWM and DIR.

My 48v PSU and 5/12v PSU share the same 0v source; I have one shared set of DIN terminals jumpered together for 0v. Further, I have continuity between the ground pin 2 on the 7i96s 5v power connector and the ground pins 1-4 of the G250x.

Do I need to tie the 0v terminals to earth on the 250v main power?

Thanks everyone this has been really helpful, and I feel much more confident knowing there is a nice community willing to help. I'm going for a 7i96s.

I was just wondering if anyone knows a good way to get one of these cards to the UK, the shipping isn't insignificant.

Thanks again

Thank you very much, I'm going to try with a potentiometer connected to a 1.5volt battery for safety.

Those really look like analog +-10V drives

thanks
Okay I understand it's an incremental value and it's non-analog but that doesn't bother me, how do you configure Linux (find information)

Yep, looks like a good starting point.