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Just to close the loop. I switched the BMU and all is well. I was unable to load the parameters by RS232, even after setting the comm parameters. The best I could get was when reading, the control...

I have the instructions from the 6M maintenance manual. It describes the procedure for entering the defect data, but doesn't mention the prefixes I'm seeing on the board. There are 2 sets, A & B. ...

Will do. Thank you. If I forget something in the process of changing the board, can I just put my old, good board back in and be where I was before starting the switch?

Hi All,

I have a Fanuc Wirecut EDM that has got too little program storage. I have a larger BMU board I'm getting ready to install. The system is a 6MC rev motherboard. I downloaded the...

Thanks Mike.

Got a bad spindle servo drive. With an error, I can't seem to be able to access and record the parameters. Does the battery backup also protect the parameters of the servo drive. The control is...

Update:

Checked DC voltage on test points on orientation board. The test points are not accessible on main board unless I remove orientation board. I'm assuming the orientation board gets its DC...

Update:

OK. I removed U,V,&W wires and powered on the machine. Still shows AL-19. Do I need to reset the alarm in order to clear it?

Thanks for replying Mike, I'll give it a try.

Booted up my Kitamura MC1 with 0MB control and it homed perfectly, but would not respond to any commands. Checked out control cabinet and found spindle servo had this alarm. I did quite a bit of...

Check parameter 23 if it's a OTC or OTB control. Not sure if it's an A.

There is a parameter that will switch the control to english. If no one chimes in, I'll check tomorrow when I'm at work.


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Just an update. Chips came in. Installed no problems. Now rocking with 128K of RAM. Thank you fordav11. Thank you CNCzone. And memoryman.

The data sheet I have is for TC55257DPL/DFTL/DRRL-55V,-70V,-85V As I understand, the DFL is for the package (DIP28) and the 55V ect is for access times. The sheet doesn't cover mine which are 12...

Can the L or LL versions be installed with the base versions which are not L or LL? The base memory is Toshiba TC55257BPL-12.

TIA

OK. Thanks for your help.

I can't read the 43256 as the card is still in the machine, but it looks like I have the same number (4) as in your picture except there is 1 chip with a sticker on it that is located in the bottom...

Yep

fordav11: I checked the memory board and the 4 sockets are empty. What do I look for in determining the amount of base memory? TIA

Hi All,

I'm looking to upgrade the program storage memory in my CNC lathe. I've determined that it is a OT-C control. It currently is configured with the minimum amount of ram as per the 901...

If you were running the 4M software from a PC, you could give an internal DNC command which has pretty much unlimited file length. Not sure if your machine ever had that option. My DM2900 does and...

Which Dyna software are you running?

Can you single block through the program and determine where the error is occurring? This will help find the error.

Not sure on Haas, but my hardinge, with 0T control, has 2 G71 lines. You might...

Not familiar with HAAS, but I think when you call out the tool ie: T101. Shouldn't it be T0101, if you calling out tool #1 offset #1? I'm pretty sure you have called out Tool #10 offset #1.

If...

Thanks for replying Mike. A poster on another forum suggested I change the linearization (sp?) tolerance from .02 to .0001 and it worked like a champ.

The profile is a spline that was provided by...

Thanks for replying Superman. I tried it and no luck. In a rush, I just derived the parabolic function in excel and built a table. Would still like to find a solution though.

Roger

Hi All,

I was hoping I could get some help with this problem. I'm generating code for turning a parabolic profile in X3. The segments that are generated are straight lines and are too far apart...

Seeing as nobody has responded to you yet, I'll take a stab at it. I usually don't worry about it being too "pure". Start cutting and it will increase soon enough. If you really want it higher, then...

I suspect that they are ground wires. Can you take a picture and post?

Roger

No offense taken. The reason I asked is the pivot point is below the work plane, as you know, and when adjusting the U or V axis this would change the position of the wire down to the pivot point....