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FANUC 506 and 507 Overtravel Alarm

kushan1983

Plastic
Joined
Sep 14, 2023
Hi freinds,
We have a robofil 230 EDM wire cut works with fanuc 18i controller. The axis are X.Y,U,V,Z .following alarms present in system and not resetting.
1. 506 + U OVER TRAVEL
2. 507 - V OVER TRAVEL
There are no hardware used limit switches in this for axis.
we did following troubleshooting and still no progress.

Moved on reverse direction on U and V axis with jog mode and then reseted.
U and V axes are in middle position( not in ends).
Changed the 1320 and 1321 paramter values. but not resetting.
Pressed cancel and P button when booting.
but fault still present.

any suggestion friends,
 

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