Need Help! Need Spindle To Turn While Chuck Is Open


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Thread: Need Spindle To Turn While Chuck Is Open

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    Default Need Spindle To Turn While Chuck Is Open

    I have a basic 370 with a FMB feeder and I need the spindle to slowly turn while the chuck is open so hex bar can be loaded. How do I bypass the chuck open alarm?

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    normal Okuma codes are.....

    for sub spindle

    M246/M247 - sub spindle interlock release off/on

    M248/M249 - sub spindle chuck close/open


    for main spindle

    M184/M185 main spindle interlock release off/on

    M83/M84 main spindle chuck close/open

    Last edited by fordav11; 12-10-2011 at 03:39 AM.


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    fordav11
    Thanks for the reply. I have used those main spindle M codes and had no luck.
    G97 S5 M04
    M185
    M84
    M436
    M05
    M83
    M184

    Last edited by thays; 12-09-2011 at 07:30 PM.


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    Try M51. That used to be for chuck air clean out, so it would jog at a low RPM with the chuck open. Not sure if it works any longer.



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    I wish I has a chuck air clean out code on my machine. I'm forever blowing out the crap in sub spindle with air gun after each part is complete. Pain in the ass

    ok if M184/M185 does not work tell us which Okuma control you have.....



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    The controller is a OSP-P200L. I played around with the machine today and could not get it to read past the M185 line. No matter where I put the M185 in the program it would stop on that line and never had a alarm.



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    No alarm suggests the machine is waiting for something to happen.
    If you leave it running for 5-10 minutes do you receive an alarm or timeout message?

    I have the full OSP-P200L manual set here in pdf. The M codes are correct.

    From the manual......


    Chuck open/close interlock release command

    M184 .... Chuck open/close interlock release OFF command

    M185 .... Chuck open/close interlock release ON command


    Example transfer program


    G13

    G140
    G00 X800 Z800 W800
    M185 M247
    M249
    G00 Z0 W30
    M151
    G94
    G29 PW=30
    G22 W0 D5 L2 F250 PW=20
    M248
    M84
    G04 F2
    G00 W30
    G28
    G00 Z800 W800
    M150
    M184 M24
    P10

    G14

    G140
    P10
    M02


    Last edited by fordav11; 12-10-2011 at 03:43 AM.


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    Worked on this problem a little more today and used the airblow m89 & m88 and the spindle would turn like I wanted but I was getting a 3718 or 1740-1 alarm as the feeder was pushing the bar through the chuck.



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    Looks to me like your bar feeder is the culprit. Many of them are looking for a spindle zero speed (provided by the okuma) in order to feed. Since you are getting a Coupling device error or external Chuck clamp alarm, I'd look at the feeder to see if you can change a parameter to allow rotation or re-wire if need be to allow it.

    By the way are you using the Okuma bar feeder interface? If you are, double check your bar feeder parameters to make sure the chuck rotation interlocks are off. If you have the system link OFF and try your interlock release codes, do they work?

    Best regards,



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    M185 should work if the machine is equipped with it as it is an option!



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    gunda
    I worked on this problem for several days and I'm thinking I did use the M185. I think the bar feeder needs to be rewired.



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    Hey fordav11! Would you be so kind to post a link to the p200 manual PDF!!! I would be so grateful!



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    its not online. the manuals come on a CD that ships with any new Okuma CNC machine.



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    That's cool! Thanks anyway! No harm in asking! I'll find one somewhere!



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    If the zero speed signal is the problem I wonder if inputting a M63 "Ignore spindle rotation M code answer" would solve the problem?



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    Quote Originally Posted by thays View Post
    I have a basic 370 with a FMB feeder and I need the spindle to slowly turn while the chuck is open so hex bar can be loaded. How do I bypass the chuck open alarm?
    today there was the same problem I found in the machine itself a document with m codes and code m391 helped me.
    it should be used in one line
    example : m391 m3 s500



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    Default Re: Need Spindle To Turn While Chuck Is Open

    Quote Originally Posted by thays View Post
    fordav11
    Thanks for the reply. I have used those main spindle M codes and had no luck.
    G97 S5 M04
    M185
    M84
    M436
    M05
    M83
    M184
    I noticed that you have S5 as your spindle speed. You cannot go below 50 RPM or you will not get confirmation that speed has been reached. You also need to have the M185 BEFORE you try to start the spindle or the interlock is still effective - although if your chuck is clamped you would be OK.

    Experience is what you get just after you needed it.


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    Default Re: Need Spindle To Turn While Chuck Is Open

    Quote Originally Posted by jamessiffel View Post
    That's cool! Thanks anyway! No harm in asking! I'll find one somewhere!
    Which manual are you looking for? Programming? Special functions? Alarm?

    Experience is what you get just after you needed it.


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