Z return margin error
Searched through the archives and couldn't find this one. When I power up in the mornings I hit the power up restart button on our Tool Room mill. The spindle moves to the extreme of Z+ and begins moving towards home. As it approaches home I alarm out with the code Z Return Marg. I hit reset and power up restart again and usually it homes the Z and then the table, cycles to tool one and all is good, no lost of indexing from the previous day etc. Before shut down I always perform a tool change to an empty pocket and then I hand jog Z +2.0 (approx) past home. I varied this to Z- as well as leaving it homed. Same results. Can anyone tell me how to clean the sensor assuming that is what the problem is. My machines use grease fittings rather than a cyclic oil pump for lube and I'm wondering if to much grease could cause this. Any help would be appreciated. Thanks
Suppose you were an idiot and suppose you were a member of Congress. But I repeat myself.
Mark Twain