I’ve reached out to PWNCNC and created an ticket for this issue, so they should be getting back no later than tomorrow. I’m creating a post on this problem because I’m wondering if any of you have come across a similar issue and to see if there is something I should be aware of in the future to avoid such issues. Here is the email I sent:
Hello,
I am having an issue with my spindle controller. I’ve attached a photo of the controller to give an idea. The issue began after hitting e-stop on the Masso. Without giving too many details, I have unplugged all electrical cables hoping in essence the system would reboot itself, but I haven’t been successful. The spindle continues to work but flashes from 175.1 to 175.2 rpms. It does not respond to any dial movement. Hitting reset and run do nothing as well. when I turn the Elite Onefinity off, the number does decrease, but once the power is off and then turned back on, it goes back to the original 175.2, yet the spindle is not moving.
The spindle does work. I was able to run a job at 18000 rpms, but it read 18180 on the controller.
What do you suggest? I’m concerned the spindle will turn on inadvertently while I’m changing a bit.
At some point you hit the >> button on the keypad which switches the display between a few different bits of data indicated by the LED’s at the top.
We ship the VFD with it displaying Hz (the far right LED). push the >> button until the HZ is displayed again.
As for the 18180rpms… it is very common on hobby CNC controllers, even those as high quality as the Masso to have analog voltage signals vary by upwards of 10%. The Masso controller is a better quality one than some which could have upwards of 500-1000rpms difference from the set speed. This is nothing to worry about.
So long as the VFD is blinking, it will not turn on. It’s on/off status is controlled by relays built into the Masso controller. It is very unlikely that it will.
You can think of the VFD as a some-what dumb box when in automatic mode. It will only do what the controller tells it to. There is no intelligence happening within the vfd other than monitoring the signals coming over the control cable plugged inbetween the VFD and Masso.
We’ve sold several thousand spindle systems and never once heard of a VFD starting on it’s own.
Hope this gives you a bit of confidence. If you have additional questions, please reach out.