Dear Sir,
I have a MORI SEIKI SL-15 MC Lathe with Fanuc OT Controller. Some problems get in Spindle drive (A06B-6055-H212) including the transistors modules usual damaged during the machine operation. I bay a new control board (A20b-1001-0120), exchange it and exchange the damaged transistors, but now the transistors damaged just at Give an order for the Spindle to work. I think some defective in wiring, but I don't have a right wiring and not sure what a problem. I need help for know the problem and solve.