Okuma Alarm-A 1880 Loader hand/machine interference
The interference sensor switch mounted on the loader arm or the hand vertical position signal turned OFF due to interference with the machine or stocker when the loader was entering the machine, preparing material, or unloading a product (with the swing at the horizontal position) or the loader entered the upper part of the machine with the swing not at position B.
4->The loader was to enter the machine as not at the home position.
5->The Z axis was to move over the movable range when the loader was entering the machine.
Probable Faulty Locations
1)Operator’s error
2)Program error