Old Install having new issues!

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29 Oct 2015 23:42 #64472 by tjamscad
We are using Axis, LinuxCNC 2.4 pre. The issue is that it started moving on its own. Only when commanded the Y-axis will start moving and stays moving. We normally use the keyboard arrow keys to move the axis. When you press the arrow key + or - the Y axis starts moving and stays moving even after letting go of the arrow key. While it is moving if you press the opposite arrow key it will change directions but stays moving. If you press the arrow key multiple times it will speed up. Once it is giving a command the axis stays moving until you e-stop.

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30 Oct 2015 04:32 - 30 Oct 2015 04:58 #64488 by BigJohnT
I'd start by watching axis.1.kb-jog-active if it is in 2.4. If it stays on after you release the key the problem could be the keyboard.

Edit: If you didn't upgrade the software then nothing has changed there, so look at hardware keyboard, harddrive etc.

JT
Last edit: 30 Oct 2015 04:58 by BigJohnT.

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30 Oct 2015 19:37 #64511 by tjamscad
It will also do it with the keyboard unplugged using the +/- on the display with the mouse provides the same results.

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30 Oct 2015 19:45 #64512 by BigJohnT
Well that does eliminate the keyboard... what do you see when you put the hal pins for the Y axis in a watch window?

JT

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30 Oct 2015 20:03 #64514 by tjamscad
axis.1.kb-jog-active toggles true/false as it should.

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31 Oct 2015 04:38 #64530 by BigJohnT
That does sound like the drive is not stopping when the jog command is removed. I'd put the Y axis drive pins in a watch window and see what they are doing, if they stop when you remove the finger from the key then something down stream is stuck. What kind of drive it is stepper or servo?

JT

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31 Oct 2015 05:43 #64532 by tjamscad
Turned out to be the motor encoder missing feedback.

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31 Oct 2015 18:44 #64546 by BigJohnT
That would do it for sure.

JT

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