Originally Posted by
Monster_Shop
I have been getting a "spindle troubled" alarm on the nc. I also have found that the spindle drive will not power up. Next I determined that if I unplug con101 from the back of the fr-sf main drive board (sf-ca) then it will power up and I can plug the connector back in and go from there without any problems. Untill a few days ago. Now the sf-tl card intermitantly (but most of the time) lights up its led1 red which means an open circuit exists. I have seen the following alarms on drive: ALO 27, ALO 37, 88 (watchdog), r, 7, 8 8, 7 7, and some other wacky stuff. On the nc I recall seeing 1027 and then one time every alarm availible was up.
O.k., I ordered another sf-ca card to swap it out and confirm its not that. I am going to reinitialize the EEPROM with instructions from Mitsubishi. I will forward these to anyone who asks. These instructions are not found in any standard manuals (that I have found). Ill reenter the parameters and see if that helps. I did have an issue where spindle parameters were lost in the past. I aslo recall now that OKK tech support told me do this but I had no instructions at the time and the machine ran fine up till now.
Think there is a short in the base unit (nightmare!). I will also try this troubleshooting but I looked at it several times and it seems a bit confusing to me. Any advise or ideas on this would be great. Thanks!!!!!