Hi

I bought a very old lathe. I'm trying to restore it to former glory and trying to get it into working shape. I am a IT specialist, so not much experience on lathes etc.

I do not have any diagrams of this lathe, nor any manuals. I've been searching and trying to find information (even pic's of working ones) and have not been succesfull.

I did decide that I won't use the tape reader and have bought a BTR.

I have a huge pile of cable, a hydraulic motor, cooling pump and the original "brain" box and the lathe.

I connected 380V 3 phase, and powered up, the hydraulics, nor cooling pump are connected. The console's lights came up. It said Out of tape or something similar. According to the guy who sold me the lathe, all the motors were tested and working.

Now this is to where I can take it.

Is there anybody that can help me. I can post pictures etc.

I will run this lathe on MasterCam XR2.

I will greatly appreciate, I've tried getting manuals, but at an average of $300 each, they're out my reach.

Thanx alot.

What control is on it? some Okuma's were fitted with Fanuc 6T. If it has Fanuc, do you have the parameters etc?
Al.

When the time comes, I can help with OSP-2200 programming.

I'm actually not sure. What I could get on the Net is that apparently Okuma started using Fanuc controllers a few models later.

I've looked on all the boards, which seem to be VME to find any information, to no avail. I also sent a ton of mail to Okuma/Fanuc to see if they can give my any info. The only thing I could get a name on is that it has a Sanyo Denki Tape Reader. The servo motors are Yaskawa.

Where can I look to see if it is Fanuc? I greatly appreciate your trouble. I'll take some photographs tommorrow and post them. If it can help....

Thanx a million

Here is a list of machine alarms that might help get you through the start up: http://www.homestead.com/mtsspecialservices/2200L_Alarm_List.pdf

Good Luck,

i am so glade that i finally find something usefull on the internet that can help me to fix my problem.
it's been a long time since i buy my okuma lsn-10 osp-2200 lathe but almost 6 years i can't get this thing started :(
i buy this as a undamaged and in a good condition mashine that has work in a workshop in switzerland,but from the first start i know that something was not ok.
many peopels and professionals try to fix the problem but nothing happend
1 year after my father and i buy this mashine we make a decision to call switzerland and tell about the problem and we came to the final decision to bespeak the binary and the program tape from japan.
and anybody now what happends next :P
the tapes dont fix the problem :(
after that,we send the tape reader to switzerland and the say that the tape reader are intact.
we also try to program the osp2200 with the klik klak switches on the front table of the osp2200 and nothing happends
we also detect that the tape do not stop on the position he should and he wont stop until i press reset.
now i find mastercam x2 and predator dnc on the internet and i am not sure that this programs can fix my problem-i also have a rs-422 connector on the osp2200
i almost forget-on the main display are no error codes just sevens and nines on all lamps and they dont changes all 6 years :)
i have the complet user guide of this mashine and we try everything step by step but nothing
soo if anybody can halp me to fix my problem then please write in this treath and i will be the happiest man on the world:) really
PS-sorry for my english,i try my best:rainfro:

have really nobody an answer for my question-please post if somebody can help me
thanx ;)

I have an okuma LS-N Big 10 sitting in sotage if you need a parts machine. Located in pennsylvania. Please get this thing out of here. LOL

hehe jagermeister you are really funny :)
look at my profile and you will see were i live LOL
no really-in what a condition are your lsn-10 and have you the osp2200???
thanx

The machine was in running condidtion when pulled from service. everything worked. It had a Mark Century 550 control.

and why you wont to get your machine out of your sotage???
my lsn-10 is ok (i think so) what i need is a specialist who knows exactly what's wrong with my osp2200 or an elektrical shema
but thank you jagermeister for your offer

I have just printed this post out, i will have my OKUMA rep to have a look at it. then i'll let you know.

ok thank you rhino
if they are any indistinct in my post then let me now and i wil write exactly and step by step everything that im try

anything new about my okuma???

Well

I'm a little bit further. My machine powers up. The spindle is turning, the chuck is opening and closing, the turret turns correctly. The servo's are intact.

But I devoled a new problem. When ever I want to jog the axes, the Z axes just jump quickly from left to right (like it's loking for a position, which can't be found) and then stops and flash a Error 3, according to the alarm list provided in an earlier post it is a parity problem or the limits are outside of the feedback device. I've spoken to the Okuma agents in South Africa (not really anxious to help). Anyway, I swopped the encoders, as well as the drives. But exactly the same thing happen. When I disconnect the encoder, the servo runs extremely smooth until it hits the limit switch

I need to check some more, but at this stage I feel like it is the positioning card that is buggered, do you guys reckon the same, or might it be something else?

I can't get nothing registered on the keypads either, but one "expert" said I first need to get the axes right before anything else will happen.

I just feel that I'm quite close to actually cutting.

As always, all help is dearly appreciated.

If i remember right does this model of okuma use absolute encoders?
If yes, the encoders must show value inside machine work envelope when machine power is turned on.
Some old okuma lathes I have seen have machine origin position about 1,5m outside from machine! so you can not position machine axis physicaly in machine origo, the encoder position must be in right value straight from start up.

Regards Mika

Hi

Yes, they do have absolute encoders.

I finally got one Okuma engineer to talk to me on the phone for about 3 minutes. He thinks that the problem does not lie with the encoding or machine position, but with the tacho. Now I've actually took off the tacho, damn there can't be much wrong with it, it has a copper disc (tracked) and 5 magnets. Brushes seems OK, so now I'll start tracing and see if I get any voltage on the Tacho and its wires.

I must be honest I'm getting a little discouraged now. I'm so close, and now I sit with a machine which jumps on one axes. Everything else is now fine and working. Oh, that was a little lie, my front turrent is spitting out H fluid, think I burst a pipe the other night.

By the way, when my z axes jumps around, it actually is encoding / recording the position. I measured the distance from where I turned it to 0 and it actually is spot on!

I really need to get tjis now up and running. Got a PMAC (Delta Tau) ready for a transplant, but then I'll have to get rid of the encoders, and they seem so damn nice.

Anyway will keep posting.

ANd again thanks for the help.

Yopower, pm me, I found some electrical diagrams, which I can scan and send to you if you still need them.

Regards & keep well

What is the head bore on this machine?

hmm were can i read this-head bore???

hole through the spindle

you can place nothing true the spindle
there is no hole
the spindle is hidraulic

hello everyone,im still not further with my machine,i have done some tests with the osp 2200,the voltage an the cpu voltage are now in proper range.the binary tape stops at the last holes but the no1 control tape just want to stop stop at the last holes.
what i explore on the main switch board is that 2 leds dont work properly one light al the time and one newer,but when i place the memory switch in the up position then they work.but with the PC switch in up position-on then they dont work.i am 99% sure that a circuit board are bad.have anybody any idea???
i newer come to this conclusion without help from a friend from america and i thank him so much
Regard

Hello everybody

i have to update this treath with my newest results

i find some used pcb boards in finland and buy the
memory module (16K)
mother board
3D Board
Switch board and pcb board behind the switch panel

After i plug in the new boards i first try the flickering method (that dont work with my original boards)and try to feed the memory with the control tape NO1
The tape dont stop at the last transport holes so i try bootstraping the machine and load the binary tape.everything work just fine to the binary tape.and then when i try to load the control tape NO1,the tape dont stop at the end and just runs trough,i try everything about 50 times but i ever get the same results.
i think that there could be a problem with the 1F2C pcb Board that controls the work of the tape reader.but if so,why the biary tape stop at the correct place and the other tapes not.i also receive the tapes of the new memory module.
have anybode an idea what could be the problem here?????
i would really appreciate any kind of answer.
Thanks guys:D

Ok guys i got finally this machine started:rainfro:
sorry mods for updating this thread again but i just want to help some people (if there are still someone like me that uses osp2200) who maybe have the same problems so i can help them,cause the machines are really rare but reliable and still good working after 30 years.
i manage to fix my problems but i had to change all of the pc boards in my osp 2200.
after that everything went good and now i have a fully funktional machine:)
so if anybody have a problem with a osp2200 i would really like to help them
dont hesitate to contact me at

yupower1@hotmail.com
or
boracompany@gmail.com

Regards to everybody who read this thread

Respect to the CNCZone Forum

just keep on to do such a nice job