Controlling Sauter tool turret questions

[eflor8234]

About a year ago I rebuilt my down Deawoo Puma 6 with an Acorn board and DYN4 drives/motors. It's been working great but I miss having the old turret on the machine. I recently picked up a couple Sauter turrets at an auction and would like to add one to my lathe. I've attached some pages of the manual that show the wiring and encoder info. I'm not up to speed on what controlling one of these would take. I've read through topics and have downloaded the turret ATC docs. Will I need to change out, add anything on this turret to get it working with the Acorn?

From what I gather-
220v three phase motor
rotates both directions
angular encoder

Any help is appreciated

Erik

[martyscncgarage]

The images are too small. Please scan to .pdf and repost.
You also need to explain how the turret itself works.
Better yet, find the manual for the turret and upload it.
Marty

[eflor8234]

I've attached the manual I found online.

From what I gather there is a solenoid that locks the turret, motor control (a relay for forward and reverse), and the encoder.

Thanks

[martyscncgarage]

I've attached the manual I found online.

From what I gather there is a solenoid that locks the turret, motor control (a relay for forward and reverse), and the encoder.

Thanks

WHICH turret model did you get? (How many positions?)

What you need to do is set it up on the bench and learn how it works. I would use a small 1/4hp VFD to drive the turret motor. Everything else appears to be 24VDC Logic. I would put it on the bench and unlock it using the correct input, rotate the turret foward and reverse with the small VFD, and then perhaps with an Oscilloscope, watch the encoder signals. If you figured all that out, documented it then you can work on the PLC.

After a cursory look at the manual, it looks doable. You would need ether1616 and a load of help to write the PLC. I would consult with Marc Leonard. (CNCSNW) He may have already done one, but he would be the guy I would ask first. PM him if he doesn't chime in.

Marty

[eflor8234]

Marty,

Thanks for the input. It is the eight position model. I have the cover off the back and am able to lock/unlock the turret manually by pressing the solenoid with a screwdriver. I'm able to rotate the turret by hand when I press the solenoid.

You're right about needing a lot of help to write any type of code, PLC programs still read like a foreign language to me. I will reach out to Marc about the turret and PLC.

I have two turrets and am thinking I'll try swapping out the A/C motor on one of them for a servo. After looking at the axis driven instructions, it appears pretty straight forward. All I'd need to do is control the solenoid and add a driver...at least I think that's all I need to do.

Thanks,

Erik

[martyscncgarage]

Erik, I'd leave the motor alone. If it's 3 phase,. A small vfd could control it. If you watch my video on my Emcoturn 140 lathe turret, yours is "similar" I changed my motor to a stepper, I planned on using a servo like you. The stepper runs a a DC motor. I should have left the three phase motor on it.
Small VFDs are about $150

I would do as I suggest. Get it on the bench and make it move. Sort out which wire is what.

Marc is sharp and busy. Don't expect his work is free. But he is efficient and knows the Centroid PLC well. He's done more than his share of tool changers.

Marty