What's new

Search results

  1. H

    QT15 T32-2 Stuck in E-Stop

    Hmm, from another thread here, it seemed like O13 bit 3 was the ladder monitor... You're saying O29 bit 0 and 1? Is that for a T32-2, or a slightly different control? They seem to have changed things around considerably for every slightly different controller, which leads to the Mazak confusion...
  2. H

    QT15 T32-2 Stuck in E-Stop

    I don't think Mitsubishi is to blame for the horror show that is this garbage - that blame is squarely on Mazak. The whole Mazak system is Mitsubishi hardware with custom Mazak firmware on top. The original Mitsubishi firmware is much better - I have a mill that uses essentially the same...
  3. H

    QT15 T32-2 Stuck in E-Stop

    The switch is connected (it's showing up as closed in the memory monitor, so theoretically that's testing everything from the power supply, through the entire e-stop circuit, to the I/O card, and into the software). It's not the actual e-stop circuit that's putting it in e-stop - it's one of the...
  4. H

    QT15 T32-2 Stuck in E-Stop

    This machine does not have the ladder monitor enabled. I'm pretty sure I know how to turn it on, but I've also heard that you need a MC455 card with the right MC841 installed for it to work anyway? Is that accurate? But even with all of that, for e-stop, it doesn't seem like the ladder helps...
  5. H

    QT15 T32-2 Stuck in E-Stop

    If it did, not recently (aka not for the last many years). The "external estop" has the shorting clip from +24 to EMG-E on the terminal block, which would normally be going to the bar feeder if one was there. This isn't a newly moved in machine, this is a machine that was running parts, was...
  6. H

    QT15 T32-2 Stuck in E-Stop

    Looking at the wiring diagram, I wondered the same thing, lube level, hydraulic pressure, and air pressure. It has lube oil in it, and when the bijour style pump runs (or the plunger is pulled up manually), the pressure switch on the lube line changes state in the I/O monitor as it should. The...
  7. H

    QT15 T32-2 Stuck in E-Stop

    I haven't been at the machine yet to check what R69 contents currently are (or get the person that is there to look at R69 in the diagnosis memory screen and take a picture). I just found that in the M300 manual over the weekend and was wondering if that's a valid place to look, considering that...
  8. H

    QT15 T32-2 Stuck in E-Stop

    I'm trying to help someone diagnose their Mazak QT15 with a T32-2 control. The lathe is stuck in e-stop. The e-stop circuit has been verified that it's closed, both physically at the wiring, and in the diagnose memory screen (both X26 and X27 show closed (1's) in the diagnose memory screen - as...
  9. H

    Mitsu Meldas 330 Memory Upgrade

    Can you simply plug in a MC471/472 card into a Meldas 330 and get the extra memory, or does it have to be enabled with some parameter? Does anyone know the parameters that need to be changed?
  10. H

    Spindle Motor Sealed Bearing Grease

    Yes, you're right, they're double shielded, not sealed. The bearing on that side is a NTN 6408ZZC3 and on the other side NTN 6310ZZC3 So I'm guessing I should clean that old grease out and put fresh stuff between the bearing and the housing? Any particular grease I should use?
  11. H

    Spindle Motor Sealed Bearing Grease

    I'm replacing the spindle motor bearings on my mill. I removed the motor from the machine, removed the pulley and spacer, and removed the lower bell housing from the motor. It looks like the grease over time ran out of the bearing, and there's lots of it in the bell housing. It almost looks like...
  12. H

    Mitsubishi Freqrol FR-SF on Single Phase?

    Don't seem to be getting any feedback here, but for completeness or anyone interested in the future, it actually works*! YouTube *Ok, there is a caveat - the regenerative breaking trips a current limit if I stop the spindle rapidly above 1200RPM. I know this is because my fake phase...
  13. H

    Mitsubishi Freqrol FR-SF on Single Phase?

    So I heard on another forum, "AFAIK you cannot run that version/model on 1ph you will get alarm 26 if any phase is missing." Looking at that person's post history, they seem to know what they are talking about, but "cannot" translates to "challenge accepted" to me! I reverse engineered the...
  14. H

    Mitsubishi Freqrol FR-SF on Single Phase?

    Has anyone overridden the input phase detection on a Mitsubishi Freqrol FR-SF drive to run it from single phase input rather than 3 phase? I have connected 2 of the small wires (red and blue) that go to the control side of the drive to the same phase on the input connector, and the other...
Back
Top