Need help with bar pulling on a Doosan 2000SY

[Clarence L Cook]

I have recently purchase a use Doosan 2000SY with a Fanuc 21iT control.

 

I haven't been able to figure out how to pull a bar. My bar puller is coolant actuated.

 

The manual says to do an M31 before unclamping the main spindle with M69.

 

I watch the process but it times out after the M69. On the control it is still showing the FIN prompt. The time out alarm is 2036 which says to check Position Switches, solenoid valve and operation condition.

 

I have checked the position switches in the ladder diagram and they are showing activation there. The chuck is unclamping, so I don't think it would be the solenoid.

 

I don't have a problem with our Daewoo Lynx 200, but it does not have the proximity switches.

 

I think I am missing the correct sequence for this machine.

 

Any help is appreciated.

 

Clarence

[GoetzInd]

Is the close switch off AND the open switch being illuminated on the cylinder? I would just disable the chuck open close confirmation. I believe it is a keep relay. Look in the blue book. that is what we've done on all our Doosans. It is more hassle than it's worth unless you are using chucking with automation IMO.

 

Mike

[Clarence L Cook]

Thank you Mike

 

I was wondering if you can do that since I don't have the switches on the other lathe.

 

No, I am not using chucking with automation.

 

I did get a small blue book with some disks. I haven't looked at it closely. I got a series of white books, operations manual, ladder diagram, and another one that I can't remember currently.

 

I have never done anything with the keep relays, would you know the procedures, or point me in the direction where I can learn more.

 

Kind regards.

Clarence

[GoetzInd]

The keep relays are in parameters, pmc parameters. Here's a pick what to change. I circled in red the two number to change (main and sub). I would check in your parameter book to make sure they are the same though. Ours is a 2009.

 

Mike

 

[Clarence L Cook]

Thank you Mike,

 

I found those two items in my blue book.

 

My page looks exactly like yours.

 

I will give it a try.

 

Thank you.

 

Kind regards.

Clarence

[Clarence L Cook]

Thank you Mike,

 

That did the trick. I have been fighting this for about a week.

 

You would happen to know, where I can find the information on the safety zones? Currently they are very conservative on this machine for the current chuck configuration.

 

Thanks again.

 

Clarence

[GoetzInd]

There are parameters that can change them. However, M110 cancels interference check. That is what we issue with the tool command on sub ops.

 

Mike

[Clarence L Cook]

Thank you Mike,

 

I was wondering what the M110 was for. I didn't see it in any of the documentation that I have.

 

I am new to the sub spindle part of the lathe. I have a lot to learn and you have been a tremendous help. Thank you.

 

Kind regards.

Clarence

[GoetzInd]

No problem.

 

Mike