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Last time we had that alarm it was a problem with the parts catcher not making a prox switch but giving a tailstock alarm instead.

I think it's near the floppy disk drive in the NC. I'll take a look later tonight.

CB6 supplies power to your 24VDC 1.5A NC power supply. I think it may supply power to all your prox and limit switches. One of them could be shorted out tripping your power supply.

The page on your prints that you are looking at probably just show the motor and the contacts that feed the motor. There should be a number by the contacts, probably KM something, that designate the...

First thing to do is to go into diagnostics and verify that the Y output for your coolant pump is high. That in turn is probably sent to a board that turns on a solid state relay which sends power to...

You need to check the schematics. Could be a relay or a solid state relay. Don't think you'll find a fuse.
You also need to check the interlocks. Coolant won't come on if the ATC or pallet changer...

You got a mill and a machine shop. Make some. :D

Grippers from Mazak will cost you about $460.

I bought this hard drive duplicator a few years ago and backed up all the hard drives on our Fusions, Nexus and Matrix machines. It paid for itself the first time we used it. Plus, hard drives from...

Either one of your breakers have tripped or you have a loose connection on one of the wires that monitor the breakers. If all your breakers look good and untripped go and tighten all the connections...

It's also possible that the brake quit working ages ago, probably even caused a few servo overload alarms at first which the operator/mechanic just reset. After a few days or weeks of moving with the...

I can see them cutting corners on the newer Mazaks. However, our older ones all have brakes and hydraulic counterbalances. Plus, if it's just a loss of pressure, the servo would hold it in place...

Technically, the brake is activated (clamped) by springs and deactivated with a 24V coil pulling the brake pads open. Either it's still getting 24V when you get the alarm or the brake is worn, oily,...

I think you use M39 for the OD calibration and M33 for the ID.

You got a brass check valve right on the turret that shuts off the coolant whenever you index. That clogs alot. Should be able to get to it by just pulling a tool holder. Definitely won't need to...

Be sure to check the rotation of the hydraulic motor first thing. You get that right the pumps should be good.

If it is a Fanuc controller it means you powered down while it was still writing memory. To clear it you have to power up holding the reset and delete buttons.

If it's related to Terret's Syndrome it was probably loud and obnoxious, too. :rolleyes:

I thought of that. But in the past when I had that problem I never had problems with the Mazatrol program starting. It always started and then gave a screen full of alarms due to lost parameter data...

How do you get to the CMOS without an external keyboard?

This pallet changer is a real pain. We've had every problem imaginable.

Could be a number of different problems. Is there slack in the main chain? Tighten it up.

The stopping location can be...

Not sure what to make out of your post and whether you have a real problem. Sounds like you're unfamiliar with the machine. I have an H-630 and I'm assuming you have an H-400.

If the problem is...

We've had similar problems. Usually turns out to be the encoder. Did you try swapping?

We've had similar problems. Usually turns out to be the encoder.

I've only had a few problems with our Fusions. The little fan on top of the CNC sucked coolant mist and eventually started dripping condensed coolant onto the circuit boards. Had to reverse the fan...

Alarm 128 doesn't necessarily mean the e-stop button was pressed. Many things could cause the machine to go into e-stop and generate that alarm. Thermal trips, spindle and servo drive alarms will all...

You also have a bunch of prox switches inside the magazine that determine the magazine position. Could be you have chips on them confusing the machine as to the current position.

Try cleaning the photo eye and reflector that verifies a tool in pocket above the magazine.

Our Slant 40 has 8 prox switches instead of an encoder for turret position. They are behind the big round cover on the back (right side). You could have a bad one and that might explain why only tool...

I might be wrong. I just looked at our Slant 40 and it appears to be different than our other Mazaks. You might get a face full of oil taking off the round cover on the right side. Let me look...