Hi All, I live in a pretty rural area and as it is getting close to stormy season I was thinking about running my journeyman from a UPS (uninteruptible power supply). Anyone tried this and/or has any pointers?
I have my doubts the system would work so flawlessly that the carve continues just fine. I’ve always found UPS’s to be temperamental, and unreliable (when used on a PC).
They are supposed to be seamless, but I’m guessing there’s enough of a “seam” that Masso would stop functioning properly.
For me, they have always been pain - whining for updates all the time, or failing a self test.
Given that Masso doesn’t seem to be bothered by abruptly shutting it down, it might be an easy re-start anyways if the power goes out.
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Followup question:
I got a UPS for the CNC controller that will be on a dedicated circuit. I opted for the 2.2kw spindle (hopefully to arrive within a couple of weeks) that will be on a 220 circuit (without a UPS). If there is a power outage, will the CNC continue to run the program with the spindle off, or is there a feedback mechanism that will cause the controller to pause/halt the program?
I’m almost certain the machine will continue to run with no spindle RPM.
That would be a bit-snappingly dangerous situation.
I haven’t testing pulling the plug on the spindle to be certain. I have observed some signs Masso does not receive feedback from the spindle.
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Thanks for the idea. When I get everything setup, I can do that test by turning off the breaker for the 220 circuit. Stay tuned for results. 
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I confirmed that there is no feedback to the Masso controller if the spindle loses power and stops. I ran a program to start the spindle (10k rpm), move around the table, move back home, and finally stop the spindle. While it was running, I cut the breaker to the spindle. The spindle stopped and the DRO flashed an error 8 for a few seconds before turning off. The program continued to run. I waited a few minutes and then flipped the breaker back on. The spindle started up again at the programmed speed of 10k rpm. The program completed, returning home and stopping the spindle.
Does anyone have a recommendation for a good (but not too expensive) 220v UPS?