On my kitamura HX250 with Yasnac i80M serial 981086 yar 1988,
I have got a problem with the spindle indexing during tool change. The spindle pins are not alligned with the arm when it comes to extract the tool. Then the arm interferes with the keys !
Looking at the Varispeed-626VM3 manual, I found the parameter C2-1 whitch defines the spindle origin. But it seems that the parameters of the Varispeed are write protected : I can change the value, but I cannot record it, even by cutting power off.
Does somebody knows how to change the write protection ?

Best regards.