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The datum face for the parallelism is the opposite face of the part. Therefore the smaller parallel tolerance could be maintained if the part faces were out-of-flat in the same direction. Sort of as...

The manual I have for my 6M doesn't include a wiring diagram for the spindle, or any other wiring really. Only system diagrams it shows are the hydraulic and pneumatic systems. I have another...

I will check my manual for the schematic next time I'm at the shop.

What's the game plan with the retrofit?

A pile of free spare parts sounds too good to be true; you'll have to forgive me...

The cause of my ALM light was a proximity switch in the ATC that failed in short circuit. I tracked it down just by process of elimination, which was probably risky for my components and definitely...

And suddenly we're in business! Not entirely sure why though. Read through all the parameter info again and checked what I had set but didn't change anything, checked the tool in spindle switch and...

There's also a parameter to choose if you want to use Txx or Txxxx, PC parameter 3010-0 is: T command has four/two digits (1/0). I've got it set to Txxxx right now. I believe you can also have...

My tool changer is a carousel type, it doesn't have an arm. The whole thing slides out to the spindle and moves up/down on a piston.

Working fine, control panel x y and z lights go green.


Spins around a few times here and there before finding it, but lights green on the panel in the correct orientation and holds it there.

...

Got the prox switch replaced with a regular limit switch, all other relevant switches are good and showing up on the diag screen, parameters are good as far as I know. I'm not sure what it's waiting...

I can't find the documentation I had for the replacement, but I think that's what I went with. Was just some generic Chinese sensor. I just pulled it off and checked it again with an external power...

I couldn't find which it was so I guessed, was probably wrong. I did test the switch when I got it, also has a led that turns on when tripped. As soon as I can find where to buy one inside of 100...

The gear change is working fine, it doesn't return to center on power off though.

I'd think a mechanical switch would be preferable, especially with the simple plunger action it's reading. Here is...

Well, that didn't take long. The replacement prox switch I used is likely the problem. Not seeing the bit flip when I trip it. If I short the pin, LS26, it triggers the bit. May just rig a mechanical...

A capacitor failed and shorted the -15v rail. Swapped to a backup stabilizer unit hoping that was the issue, but it wasn't. The backup has some unrelated problem which made me think my BMU was bad....

Alright, masterboard problem fixed. Parameters reloaded, and back to ATC trouble (although I've got the tool carriage indexing correctly now)!

I can command a tool change with Txxxx M6 without...

BMU was fine, right as always memoryman! Swapped to spare power stabilization unit and we appear to be back in business. Not sure why though, I'm seeing the same levels on each rail for both units,...

I flipped the free mode switch for the BMU, I haven't had to also flip the write protect switch in the past to initialize the BMU, but will certainly give that a shot. Have another board en route,...

Nevermind, only had time to check that masterboard would power without tripping overcurrent protection. Now I've more time, I find that the machine is hanging on bubble read. I can't get the memory...

Turned out to be a failed capacitor on my original masterboard; appears to be working now.

Not my favorite place, but its home for now. Can't thank you enough for the help!

I am in Vancouver, WA. Just across the river from Portland, OR. Board schematics would be handy. I can't easily follow the -15v trace, guessing its more than 2 layers.

That's my concern, that the new (used) board is doa.

I copied the jumper positions and installed all the daughter boards before powering it up but all I'm getting is a blank screen. I expect to...

I see, that's good to know.

Had that board arrive today, but while the overcurrent protection isn't tripping anymore, nothing comes up on the crt screen when powered on. There isn't an alarm shown...

Hello,

I have an MV40 with a Fanuc 6MB control. My masterboard seems to have shorted somewhere on the -15v rail. Nothing looks obvious and I'm not a whiz with troubleshooting pcb electrics that in...

One step forward, two steps back. I've been able to adjust the Z reference now ( I think I wasn't waiting long enough to turn the control back on between changing the parameter ), and was just...

Hello again!

I pulled off the transducer and started jumping tooth positions. This seems to have fixed the endless rotation problem and I now believe the wiring to the ATC is correct. I can call...

Hello!

I picked up an MV40 with a Fanuc 6M-B control late last year that had some problems and wouldn't turn on. After tracking that down to a shorted limit switch on the ATC, the machine had a...

I am still fiddling with parameters and a limit switch problem, but I have the table, head, and spindle moving now. However I'm trying to get the ATC going now and I'm starting to think I don't have...

The only parameters that are not 00000000 or 0 are:

14 - 00000111
15 - 00000111
16 - 00000111
27 - 2
28 - 2
29 - 2
and parameter 168 has no value, it's just a blank field.

I called and put in a ticket with Mori, they said someone would get back to me next week but I think I was just talking to a receptionist so I don't know if they can help. I'm not sure how to find...