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4th axis problems
« on: April 25, 2010, 02:23:47 PM »
Hi all, recently received Zylotex 4th axis 269 in/oz stepper for my Taig minimill. Plugged it in the drive, configured Mach3 accordingly, motor energizes, DRO updates correctly, but motor will not rotate. Operates fine in X,Y,Z ports, but not in A axis port. Any ideas where I go from here? I've tried everything I can think of to no avail. Even tried it using old Mach2 but no joy. Thanks.

Offline budman68

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Re: 4th axis problems
« Reply #1 on: April 25, 2010, 02:30:26 PM »
What are you using to try and move the A axis? Keyboard, pendant etc?

Have you tried the +4 or -4 buttons on the jog pendant screen (press TAB keyboard button)?

Dave
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Re: 4th axis problems
« Reply #2 on: April 26, 2010, 07:01:36 AM »
Have tried Home & End keys on keyboard (they are assigned in Config), +4 & -4 on Tab out  pendant, and G0/G1 Aaaaa in MDI, no movement, yet motor is energized. How do I check for voltages at the A port on the drive, and what should they be? Thanks.

Offline Mc2

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Re: 4th axis problems
« Reply #3 on: April 26, 2010, 07:44:51 AM »
Have tried Home & End keys on keyboard (they are assigned in Config), +4 & -4 on Tab out  pendant, and G0/G1 Aaaaa in MDI, no movement, yet motor is energized. How do I check for voltages at the A port on the drive, and what should they be? Thanks.

Ok, back up one step. Have you taken the X axis cable and moved it to the 4th axis yet? If not make sure that you turn your controller off first. If it will not jog when you jog the X axis it is a motor issue. If it does then further trouble shooting is needed. You still need to check the cable comming out of the box and your settings with Mach3. You may want to post your xml file for review here.

Jim.
Re: 4th axis problems
« Reply #4 on: April 26, 2010, 11:55:46 AM »
Have done all you suggested with no results. Seems A port on drive is at fault. How do I troubleshoot?

Offline Mc2

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Re: 4th axis problems
« Reply #5 on: April 27, 2010, 12:53:47 PM »
It is possible that Mach3 is not configured correctly or the conrtol is bad. Also it is possible that motor wire comming out of the control for 4th axis is bad (open wire).  You may want to attach your configuration .xml file to this thread. I would also exchange the motor wires with another axis. You will need to rule out everything else befor the control unless you have an extra one.

Jim.