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IndustryArena Forum > MetalWorking Machines > EMCO CNC Machines > EMCO Lathe > Emco 325-II (Fanuc 21TB) live tool alarms
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  1. #1
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    May 2016
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    Emco 325-II (Fanuc 21TB) live tool alarms

    Need some help with my 325-II (Fanuc 21TB) if anyone's run in to this problem or has an idea.

    Trying to use the live tools and I'm getting two alarms when I activate the M-codes.

    Commands:

    M52 (C-axis on)
    G97 Sxxxx M13

    As soon as the M13 (or M14) is called the live tool engages (I can hear the solenoid) and rotates 1/4 turn then it throws an alarm and the C-axis and live tool disengages.

    Alarms:
    8132 AXIS ACCESSED BY MULTIPLE CHANNELS
    8203 FATAL AC ERROR (0-PTR IPO)


    Both alarms are in the programming manual, but are cryptic:

    Cause: Internal error
    Remedy: Restart software or reinstall when necessary, report to EMCO, if repeatable


    I've re-started WinNC, no luck. Happens in MDI and during normal program execution.

    Live tools worked last year, but I haven't tried using them in about 10 months. No crashes or major problems/maintenance since they last worked.

    Maybe the G-code syntax is wrong? The Emco manual is pretty terrible...

    Anyone have suggestions?

    Thanks,
    Ralph

  2. #2

    Re: Emco 325-II (Fanuc 21TB) live tool alarms

    M5 before M52. I ran cross your post somewhere about tapping with live tools. I've only been successful with G33.

  3. #3
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    Re: Emco 325-II (Fanuc 21TB) live tool alarms

    Quote Originally Posted by Diesel_Pilot View Post
    M5 before M52. I ran cross your post somewhere about tapping with live tools. I've only been successful with G33.
    You're thinking this, right?

    M5
    M52
    G97 S5000 M13


    Doesn't make sense to me as it alarmed when I was using MDI one line at a time. The spindle wasn't running (in spindle mode), and I could do an M52 and then jog the C-axis just fine. It only threw up when I tried to engage the M13.

    But Emco is insane and anything's possible.


    After some serious searching, I found a single example in the Emco 21TB programming manual (ver C2003-7) on page D49
    ...
    G90 G40 G95
    T0909
    M52
    G28 G0 C0
    M13
    G97 S5000
    ...

    I wonder if the order is the difference? i.e. M13 on a separate line before the S-word.

    Thanks for the advice regardless of outcome. I'll have a go with both versions a bit later tonight.

    -Ralph

  4. #4
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    (SOLVED) Emco 325-II (Fanuc 21TB) live tool alarms

    Changing the g-code order and adding a pause did the trick.


    M52 (C-axis on, also homes C-axis so no need for)
    M13 (live tool CW)
    G4 X1 (needed pause before the speed command. No pause = alarm)
    G97 Sxxxx (spindle speed)

    Subsequent speed changes or start/stop/reverse don't require a G4 pause as long as the M52 is active.

    Now I've just got to try editing my post so it outputs correctly.

    Thanks for the help Diesel_Pilot!

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