Messages

1

SmartBOB controllers and dedicated accessories / Re: How to "enable" motors with an output pin with PMDX-411 & Mach4?

« on: August 02, 2016, 12:04:34 PM »

Thanks Bob, have e-mailed you with further information.

I'll update this post if/when we get a resolution to help anyone seeing a similar issue.

tommy

2

SmartBOB controllers and dedicated accessories / How to "enable" motors with an output pin with PMDX-411 & Mach4?

« on: August 01, 2016, 06:11:47 PM »

Hi

I've a 411 with the latest drivers and firmware (0.44.214) and Mach 4 4.2.0.2914.

I've four stepper drivers and all is working fine, motor movement, speed, homing switches, etc.

However, I've the enable pin for all four drivers wired to a single pin on the 411, pin 14. It's working because the pin seems to be permanently set to low and the drivers use low = enabled but I want to disable them when Mach4 is disabled.

I've gone into Configure-> Mach -> Outputs and set "Enable #0" to enabled, device = SmartBobUSB, Pin = 14, Active Low = yes but this doesn't seem to make any difference?

If I toggle enable/disable several times with the PMDX diagnostics window open I'll occasionally see the marker for pin 14 flash yellow and hear the machine clunking as power drops and re-flows to the stepper but the pin never goes high.

Am I doing something wrong?

The stepper drivers are PoLabs PoStep25-32s if that's any help?

thanks

tommy