Okuma LB12 Alarm 110 Spindel Drive Unit
I bought a Okuma LB12 recently. Metal turning has been a hobby for me in the past few years. I bought my first manual lathe three years ago. It's a Russian 1K62. It's a good machine, but now it was time for my first CNC. It worked fine in the workshop where I bought it, but now when I connected it to my own power circuit it loads up, but it shows me red Alarm light and there is a alarm code 110 SDU (Spindle Drive Unit) written on the monitor. In the electrical box on the SDU LED control panel I found flashing and constantly burning LED's which tell me from maintenance book there is a fault: "IOCR" ( Short of power transistor at regeneration unit). Does anybody have any ideas what it means?
Thanks in advance.