em806 Senssorless Stall Protection fault

[charlieuk]

I think I had this problem a few months back and im sure some one helped sort it however I cant for the life of me find the information any were. I thought I changed something at the time and it fixed it but the problem seam to have come back and now the z axis trips out in the same place every time on various files.

the problem is on my z axis always tripping out and giving 5 blinks on the led indicating Senssorless Stall Protection

I seam to remember it was something to do with the motor tuning and they said it was do with the axis not keeping up with each other but as I say cant find were the info I was given is.

can anyone make any suggestions on what to do?

many thanks