Kira KN40Va tool change problem

[Gray Ghost]

I don’t know if this is the correct forum for this issue so please redirect me to the correct one if it isn’t. I am having issues with the tool change cycle. Normally the tower goes to the home position in the y axis, the z axis then goes up to put the current tool being used back in the carousel tool holder, the holder then indexes to the next tool z axis comes down then the x and y goes to the first position. Now the y goes to home z goes up replaces the current tool and while the z is up x and y goes to the first position then z comes down. The first tool stamps the part number and will run thru to the next tool which i a drill. Y goes home z goes up but will not come back down to complete the tool change cycle then the machine faults out with an alarm 1011 spindle start in z-axis “+” area.
The machine is a kira kn40Va with palette changer and a fanuc series 21i-M controller.
Any ideas on what could cause this? Any help would be greatly appreciated.

 

[Milling man]

Any ideas on what could cause this?

First you need to understand what controls the tool change - a ladder or a macro program. Some other program appears on the machine screen during a tool change, or the M06 Txx line flashes all the time while the tool is being changed?