Quote Originally Posted by stewoolla View Post
Hello,
I have a different kind of problem. I am familiar with programing in fanuc system but I have got a task to start up an old used Okuma LC10 lathe. I found a problem even before I started. When I try to start the spindle with M3/M4 I get an alarm message no. 1120-chuck open alarm. We have tried to set both sensors and chucks (position and pressure) with the same results every time. Does anyone have an idea what could be the reason and possible solution for my problem? Thanks in advance.
Did you CLOSE the chuck ? ....making sure the position sensor is lit up when clamped... the sensor is normally positioned so that it doesn't light up when chuck open or there is no material clamped in the jaws
PS...chuck pressure has no bearing on that alarm