i have a Haas SL-20 2007, when i power up a have the alarms below:
102 SERVO OFF
292 320 POWER SUPPLY FAULT
107 EMERGENCY OFF
There in no other alarm and it doesn't come off when I cycle the power.
when I measure the dc power output is 325v and the DC BUSS in the dignosys is the same 325v
when called my HFO (ho is 600km away ) he told me to change the regen and i did it without any change.
Will the error clear if you hit the reset button rapidly 3 or 4 times in a row?
What is your parameter 294 set to? Is it 270 ? You could temporarily try setting this value to 0 and see if that works after a power cycle. The vector drive might be reporting the wrong voltage to the maincon.