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ja: Command isn't tracking feedback in machine-off #45
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Ok - so the above directions seem to not work 100% of the time. What does seem to work 100% of the time is
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attempted restart after forced ferror in sim would fail because the axis gui would restart in teleop mode Signed-off-by: Dewey Garrett <dgarrett@panix.com>
I think another connected issue is how ja doesn't update cartesian feedback position from joint feedback position while in "machine off" mode.
Steps 3/4 are emulating the case where you have a servo machine where you can turn the motor shafts with the amplifiers off, or if you have a nice big machine where the Z axis droops measurably with amplifiers off. Expected: cartesian feedback position tracks changes in joint feedback, as it does in 2.7 I think that if this cartesian-tracks-joints behavior were happening, then the fix at 3cd7b92 would not be needed (but is probably harmless) |
I tested at the tip of ja12 and the steps I described in my previous comment now work as I expect. @samcoinc also says things are better for him. |
attempted restart after forced ferror in sim would fail because the axis gui would restart in teleop mode Signed-off-by: Dewey Garrett <dgarrett@panix.com>
attempted restart after forced ferror in sim would fail because the axis gui would restart in teleop mode Signed-off-by: Dewey Garrett <dgarrett@panix.com>
attempted restart after forced ferror in sim would fail because the axis gui would restart in teleop mode Signed-off-by: Dewey Garrett <dgarrett@panix.com>
attempted restart after forced ferror in sim would fail because the axis gui would restart in teleop mode Signed-off-by: Dewey Garrett <dgarrett@panix.com>
Here are the steps I follow to reproduce the issue:
1.On a servo machine with encoder feedback - after machine is up / homed
2.Toggle machine back off
3.Physically move axis
5.Toggle machine back on
6.You instantly get a following air for that axis and machine powers back off.
7.Currently no way to fix this state
On sim
1.Power up and home
2.Open halcmd
3.unlink joint.0.motor-pos.fb
4.setp joint.0.motor-pos-fb 5
5.Toggle machine back on.
6.At this point - fb should equal commanded.. It doesn't and you get a following error.
This is what I expected to happen:
The machine should turn on and the fb should equal cmd position
This is what happened instead:
Following error
It worked properly before this:
If you do the exact same sequence in 2.7 - when you toggle power on - the machine turns on as expected.
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