Help Mori MV 35, Fanuc 6M B

[SteveY]

Just sat up this machine. The rookies decided to play with it while I was gone.

It looks like they manually ran it past the travel limit in the Y- direction, then proceeded to over travel in the Y+ direction.

Alarm screen reads;

220 - +Y OT
221 - -Y OT

The table and ram travel in X & Z fine. The table won't come out of the Y+ OT position. Tried to JOG with Y-, NOPE, reset does nothing, manual control wheel won't back off the table from the y+ position. Reset won't kill either alarm.

Everything worked fine until I left the building.

What am I overlooking?

Thanks

[dcoupar]

There may be an overtravel release switch (or pushbutton) in the electrical cabinet. Be sure you handwheel off in the correct direction.

If not, you may have to shut the machine off and turn the Y ballscrew by hand to move it off the switch.

[underthetire]

Oh boy, early MV35's don't have an overtravel release switch. They had a jumper wire with alligator clips in the rear cabinet you had to use to jump a terminal block. I don't think thats really the problem though. My guess is a missing 24vdc common that feeds both the switches. Blown fuse, broken wire, or a bad switch.