Started a new carve today and when I started the carve spindle speed just went to 2150 rpm’s. I have the 220v water cooled spindle kit working on the elite foreman cnc. I checked Aspire software everything was good there. I reset the everthing that is attached to cnc. And again it just went to 3000 rpm’s this time. And yes the vdf is set on auto, but works fine in manual. Go figure. Anyway’s thinking something happened with vdf. Any Idea’s would be helpful
Thanks
David
Hi did you recently do a software upgrade your controller and lose any configuration? If I understand it correctly, the spindle provides a signal back to the controller, and the controller has a local setting for the number of revolutions that each signal pulse translates to.
If that number is wrong because the controller upgrade wiped out the configuration due to internal changes it couldn’t save, you’d see that behavior.
I don’t know what kind of controller you have and unless it’s a MASSO, wouldn’t be able to tell you what the configuration is called.
Not really.
The controller sends a voltage, the vfd recieves that translates it to a hertz, and the hz converts to an rpm as seen at the spindle
The controllers spindle settings tell it how much voltage to send for what rpm.
Commanded rpm translate to hertz translate to voltage, voltage gets sent to vfd. Voltage recieved converted to hertz according to vfd settings, then sent to motor. The hertz setting is according to the motor, then the vfd needs to be programed to match the motor and the controller
No and spindle info on Masso was as it should be, but when I started the finish cut everything worked as it should have.
Go figure.
But thanks fr input
Davide
Ah, my bad. I was doing that from memory. So if I have a longer cable, I will get less rpm and have to adjust the setting. Or oxidation / loose contacts leading to very spurious results… :rofl: :slightly_smiling_face: :dumpster_fire:
To my knowledge you’d have to get a really long cable… i don’t think there’s been tests done to find out how much electrical signal is lost over distance.
Check the tool data on vectric (i believe that’s what you said you were using in the ticket you submitted and i responded). I know sometimes if i load an “old file” it’ll revert my tool database for at the time the file was saved.
I’ve gotten in the habit of not reopening jobs after they’re done, especially old(er) files (and using only for reference) and instead open the stl or dxf file in as a new project file. If i do, just a quick run thru of my tools, I’ll either check if they have tool numbers assigned (didn’t before masso) or if the rpms make sense (all my bits are 16k-20k rpm, with most at 18k).
Haven’t had an issue since.
Chris
New file was being used and what I found for some reason the vdf hertz’s was flicker real bad and I couldn’t get it quit so it would settle the rpm’s to correct value. So it’s either got a short somewhere or value didn’t get install gcode correctly, which didn’t show up when I went through it. But when the finish cut was installed everything worked as it should. So there may not be a short. So I’ll just watch what happens for a bit. Because with my back ground in electronics it can just about be anything electronic can a will do some crazy things. We used to call it hiccups or electric gods at work. Major cause can really be a short of some type. So I keep an eye on it. I’ll make an extension cable so I can get the display part up tp the holder on the masso.
Thanks
David