Topics

1

General Discussion / Interfacing PMDX 424 to Servos Feedback Signals

« on: October 17, 2016, 07:27:30 PM »

Never used servos before and would like to give them a go.

Question:  I am making CNC mill conversion using servos made by Teknic.  Can the 424 interface with this type of servo motor?  I understand there is an error feed back wire, can the 424 deal with this type of input?  Does using this type of servo require scripting to utilize this feedback signal?

Scott

2

SmartBOB controllers and dedicated accessories / G-code stops running with 411

« on: August 28, 2016, 11:38:24 AM »

I am running PMDX411 and Mach 4 and the my G-code stops running at times and the PMDX goes into a mode where the red and green lights flash back and forth.  For me to clear it i have to close everything and start over.  Can i get some directions as to were to solve this issue so the code runs with out interruption from start to finish.  Iam running news version of Mach4 and lateest version of 411 from site.

Scott

3

Cables, connectors, switches, contactors, sensors and other items / Basic Sematic For Connecting Contactor/Motor Starter

« on: June 04, 2016, 02:02:50 PM »

I am not familure with the function of a motor starter/contactor you offer for sale.  I am try to connect up a E300-2S0022l VFD to a spindle motor.
Is there in any schematics and basic operation information available on wiring up the motor starter/contactor properly?  Again i am new to this kind of thing and i want to make sure i wire the input side right.

Scott

4

SmartBOB controllers and dedicated accessories / How to Set Common Signal to 5 volts

« on: June 02, 2016, 11:45:21 AM »

How do i set the common signal on my PMDX-424 to 5 Volts for my stepper driver i have selected.  I do not see this in any of the documentation i have seen so far.

Thanks

Scott

5

SmartBOB controllers and dedicated accessories / E-Stop Not Working with 424/MACH4 with NO-(mom) Closed Switch

« on: June 02, 2016, 10:39:10 AM »

I just received my new 424 board and i can not get E-Stop to work with my NO (mom) closed switch.  I used your 411 unit on another project with same switch before and it worked perfectly.
My Connection> Switch: NO (mom) closed ... the E-Stop pin is showing it is pulled up to ~4.37V

I have monitored the PMDX SmartBOB Diagnostics application and it shows the pin changing state from active high to active low.  Yet when i monitor at the same time the MACH4 diagnostics screen the E-Stop button always shows red no matter if i have it active low or high in MACH4 setup.

What i am i missing here ... must i use a NC (mom) Open switch for my E-Stop?

Scott

6

General Discussion / Getting Script to Run External Cycle Start

« on: May 13, 2016, 01:15:18 PM »

In the Mach4 Manual it says that if i load the following script into the Signal Script section i can get an external switch attached to input 1 to work.

This is the code listed in the manual and i loaded into the Signal Script  ... note the first 3 lines were already there when it came up and the rest i added below from the MACH4 Manual. 

I have checked all the diagnostics in both SmartBOB and MACH4 and they indicate my switch is working properly.

I have also attached my profile set up for your review.

CODE:

if SigLib[sig] ~= nil then
    SigLib[sig](state);
end

if (sig == mc.ISIG_INPUT1) and (state == 1) then
    local inst = mc.mcGetInstance()
    mc.mcCntlCycleStart(inst)
end
SignalTable = {
    [mc.ISIG_INPUT1] = function (on_off)
       if (on_off == 1) then
       mc.mcCntlCycleStart(inst)
       end
end
}

thank you
Scott

7

General Discussion / A-Axis Setup in Mach4

« on: May 05, 2016, 10:33:20 PM »

I am using a PMDX-411 with MACH4 to run a single A-axis on a glue machine i am making.  First Is there any MACH4 documentation on how to set up the A-axis to degrees and how to get motor configuration properly set up?

My stepper driver can micro-step from 400 to 25600 pulses per revolution.  What is most accurate way i can direct drive my fixture and have MACH4 move my stepper accurately ... say 30 degrees when I give a G Code of A30?  I have spent a lot of time trying but i can not seem to get my G Code commands to get even close to a proper degree movement on my stepper.

Any help i sure would appreciate!

Scott