Originally Posted by
kend
......If I do then the servo motor just spins because the coupler is loose. If I leave the e-stop on I get an "e-stop pressed" error. The manual was probably written with a certain amount of assumption that the factory trained tech guy would know some of this, but I don’t. Thanks for your help.[/SIZE][/FONT]
The turret motor is a servo with an encoder and an orientation marker which is called the Z Channel. When the Z CH ONLY is turned on the motor should not spin constantly it should rotate until it detects the Z Channel signal then stop and hold in that position. (This is morer or less the same as spindle orientation.)
Yes you do turn E stop off so the servo comes back on, and if you have followed the instructions the motor should not spin it should stop and hold.
As I understand it the idea is to orient the motor to the Z Channel position and then tighten the drive to the turret. Now the controller knows the turret position from the Z channel signal and then indexes the turret by rotating the motor the necessary number of encoder counts to reach the next tool position. When it stops and the turret clamps back the alignment dogs engage and give the final position, however when this happens the turret may move a little bit from the position the motor stopped at. If this movement is larger than the backlash, or if the backlash is all in the wrong direction, the result is it tries to turn the motor away from the position it stopped at and the servo tries to keep it there until eventually it overloads and alarms out. This is what awesome 83 is suggesting you check.
An open mind is a virtue...so long as all the common sense has not leaked out.