timmy
New Member
Posts: 1
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Post by timmy on Aug 13, 2023 22:43:24 GMT -5
Hello, I'm using the AR8 from the UCCNC software. It was working correctly up until close of day and the next day the spindle wont turn. Fault finding so far: - XYZ movements all work
- Water cooloing runs when the start spindle command sent
- Have power cycled several times
- inside the controller
- All fuses OK
- VFD has power and detects the run command (front panel indicator)
- Voltage is coming from the Axiom IO board AO1 to the VFD AVI 0-10v range
- 2Ohms resistance on each of the 3 coils to the motor so connections appear to be ok
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Post by eagle55 on Aug 14, 2023 9:48:56 GMT -5
Excellent fact finding and articulation of the various possibilities. With my experience in electronics I might suspect a bad ground to the motor or a motor that has failed (probably on the ground). But that would be based on what you have found to be apparently good and not with my experience with my AR8 (yet) one other question that you didn’t mention was how long you have had/used the machine. Obviously you know what you are doing and have been using the machine but sometimes any and all electronics can have an “infant mortality” where it will work great and a day or two later may fail due to a bad internal component that was good when tested and shipped but failed much earlier than normal use would have caused. I had my machine for 2 years before I ever set it up and everything ran fine but a couple days after I started using it, the Y axis stopped working. Turned out to be a bad stepper motor driver module… that just quit working. I’m sure none of the components on the machine go through a rigorous burn in. If they are all connected and operate properly when tested, they pass, and get shipped. (Which is normal and proper for normal equipment…. Different for military “mil-spec” electronics that is tested for hours or days at max temp, then min. temp to try to weed out “infant mortality”)
I would probably, at this point, call Axiom tech support (which is excellent btw) and with what you have and maybe check another couple of items, will have you diagnosed and on the way to a solution. Someone else may have more experience and be able to help…there ARE some crackerjack users with a ton of experience that may have run into similar symptoms.
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Post by gerry on Aug 14, 2023 11:01:05 GMT -5
Hello, I'm using the AR8 from the UCCNC software. It was working correctly up until close of day and the next day the spindle wont turn. Fault finding so far: - XYZ movements all work
- Water cooloing runs when the start spindle command sent
- Have power cycled several times
- inside the controller
- All fuses OK
- VFD has power and detects the run command (front panel indicator)
- Voltage is coming from the Axiom IO board AO1 to the VFD AVI 0-10v range
- 2Ohms resistance on each of the 3 coils to the motor so connections appear to be ok
This is the 'European' version of Axiom. Totally different firmware, software, and company than the Axiom USA. Not even the same company. |
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