Power loss during turret change

[Hertz]

Good morning, as the subject says, I was in a turret change on the CNC lathe, we had a power loss, and now the turret is out of position. I tried to just do a normal rotation after restart, and it went to the nearest tool and now it's locked with an alarm turret rotation fault. It's a BV 560 MG with a Fanuc 21i-T controller. Turret is Sauter 0.5.480.520. Is there a simple fix for this? About 10 years ago when I was working at a different place, I remember someone saying just do a tool change manually and it will find itself again. I tried that but it's not working. I did shut the machine down and upon restart the turret was freely spinning. Then as mentioned, when I did a tool change, it just rotated to the nearest tool, locked, and then the alarm comes up. Any ideas?

 

[Vancbiker]

You need to post the make and model of the machine. The machine builder determines how the turret works, not Fanuc.

 

[Hertz]

Added in the thread.
Funny part about it, is if I power off and back on, the turret spins freely by hand, and when I manually enter a tool change, it rotates but is off by 1.
So if I enter T0101, it goes to tool station 2.
T0202 goes to station 3 and so on.
The issue is that it hangs for a few secs after the rotation, then eventually alarms out with rotation fault.

 

[Ox]

You need to post the make and model of the machine. The machine builder determines how the turret works, not Fanuc.

Comes up as Nicaraguan cigars for me.

I guess it's a secret, and those with the same machines will know, so ...

???


-----------------

Think Snow Eh!
Ox

 

[Orange Vise]

You might have to manually rotate it to the correct position when the machine is off or in the e-stopped state so that when you command T101 it goes to the right station.

As you stated, the indexing is off by one station and the machine knows it.

 

[pcasanova]

I had a machine that would have issues indexing and the mtb had a procedure that didn't always work.
So I kinda figured out a work around that I would manually shift the solenoid on the turret, rotate to position and re-shift
the solenoid and lock it. power off and back on. my thought was a not so thought full plc program that didn't take all
the eventualities into account of the shifting process.