Hi all,
Hoping someone who has been here before me can assist. I have a PRS Alpha 120-60 with 5hp, 3 phase sindle purchased new in 2012/13. The only issue I have ever had was with static but once I had that sorted it has been running sweet.
The machine was cutting some 1/2" plywood last night and a small piece (approx 2" x 16" )that was inadequately tabbed was thrown aside from the 1/2" straight cutter out to the side rail.
The machine continued on and started cutting the next piece for about 2 inches, when the spindle stopped rotating but the machine kept trying to move but couldn't. The gantry stopped moving and then the software shut down which was odd, and after re-starting the software, we manually raised the Z height through the interface and had the unit jog home without issue.
The machine was then zeroed again in all three axis without a problem but when the file was loaded for cutting and the spindle button was selected, the spindle would not run.
We tried shutting everything down and restarting but the spindle would still not start. Upon investigation, we noticed that there was no digital display on the VFD as if there was no power getting to it.
Switched everything off including at the mains board and tried again this morning after checking all connections. Upon starting up the machine, the fan on the spindle starts as per usual and when the SB control software is opened, I get the standard message asking to push the reset button and you can hear the relay clunk when this is done.
I tried to do an X/Y setup and it accepted the command but freezes every time on line 125 before the gantry moves with an error message which states "Driver fault! (location no longer ACCURATE)" - see pic below.
Now the gantry cannot be moved in any way through the control software and still no LED numbers on the VFD display.
I have emailed support but wanted to know if anyone has some suggestions?
Andrew