I have a Mori SL-2b with a Yasnac2000GII control. It keeps powering down for no apparent reason. It seems to run better when it is in an automatic cycle, however sometimes it does it even then. I'll just be running along and then bam! the screen turns off and the turret continues moving in whichever dirrection it was going until the chuck comes to a stop. I have had several instances where i would be feeding in the Z axis and this will happen and the turret will jump into the chuck. The only fix i have found is to turn it back on and pray it doesn't happen again. Any Ideas??