We have an older knee mill by Accupath running a CNC10 control (3K20269)
When we try to move the Y axis plus or minus, it always rapids plus for a second, then faults out with a Y axis encoder fault.
How do I narrow this down to if its an encoder, wiring, or drive problem?
thanks!
Accupath knee mill Y axis malfunction
Moderator: cnckeith
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- Posts: 4
- Joined: Mon Jun 15, 2020 9:24 am
- Acorn CNC Controller: No
- Allin1DC CNC Controller: No
- Oak CNC controller: No
- CNC Control System Serial Number: K20269
- DC3IOB: No
- CNC12: No
- CNC11: No
- CPU10 or CPU7: No
Re: Accupath knee mill Y axis malfunction
To be more specific, I get a 410 Y axis Position error
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- Posts: 4
- Joined: Mon Jun 15, 2020 9:24 am
- Acorn CNC Controller: No
- Allin1DC CNC Controller: No
- Oak CNC controller: No
- CNC Control System Serial Number: K20269
- DC3IOB: No
- CNC12: No
- CNC11: No
- CPU10 or CPU7: No
Re: Accupath knee mill Y axis malfunction
I should also add that his mill has been in service for several years, and was running fine last week. The X and Z axis motors work correctly.
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- Posts: 4
- Joined: Mon Jun 15, 2020 9:24 am
- Acorn CNC Controller: No
- Allin1DC CNC Controller: No
- Oak CNC controller: No
- CNC Control System Serial Number: K20269
- DC3IOB: No
- CNC12: No
- CNC11: No
- CPU10 or CPU7: No
Re: Accupath knee mill Y axis malfunction
This machine's floppy drive no longer works, and I see no external USB ports, so I am unable to get a report linked to this post.
Please advise on how to proceed with troubleshooting this problem.
Thanks!
Please advise on how to proceed with troubleshooting this problem.
Thanks!
Re: Accupath knee mill Y axis malfunction
Do you get the same condition if you jog the Y axis in Slow, Incremental, x100 mode?
Or in that case do you get "411 Y axis(2) full power without motion"?
If you get "410 ... position error" even when you you only try to move it 0.010", then you probably have shorted FETs on the servo drive, and you need to send the drive unit (probably a DC3IO) in to Centroid for repair.
If you get "411 ... full power without motion" instead, then it is probably an encoder feedback problem: most likely a dead encoder on the Y axis servo motor.
Or in that case do you get "411 Y axis(2) full power without motion"?
If you get "410 ... position error" even when you you only try to move it 0.010", then you probably have shorted FETs on the servo drive, and you need to send the drive unit (probably a DC3IO) in to Centroid for repair.
If you get "411 ... full power without motion" instead, then it is probably an encoder feedback problem: most likely a dead encoder on the Y axis servo motor.