Tool Change - Can I set it to auto stop?

[inthezone]

I'm not sure if this is an error in my software, or my Fanuc Controller...

When I am going in for a tool change, the code issues the T command with specified tool number. I am having to manually stop the program, and turn off the spindle to change the tool. If I wasn't watching the program closely, the program would simply continue on its happy way with the wrong tool. Very dangerous.

I am used to having the program stop the machine, and turn off the spindle for a tool change, and then having to press "cycle-start" in order for it to continue.

Is this something that has to be programmed into the controller, or is it something I can issue up in my code?

[Mitsui Seiki]

Post an example of the program.It makes it easier to see what's wrong.

[Al_The_Man]

Sounds like the PMC is not programmed to recognizing the T code, normally it is done to do the change automatically or if a manual tool change machine, then a stop is issued with a message and then wait for cycle start.
If it was originally programmed for automatic tool changer then there may be a sensor malfunction etc.
Al.

[inthezone]

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:Microscope Switch-out
(8-2-2007)
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[Mitsui Seiki]

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So when it reach the part of the program marked red ,it just continues with the tool it has in the spindle?

[inthezone]

This bridgeport series II is manual tool change only. Lemme guess, programming the PMC to stop the spindle and program during a tool change is a pain?

[inthezone]

Mitsui Seiki, yeah it just continues, no pause or anything!

[Mitsui Seiki]

The M06 is usually a subprogram(macro),depending on what Fanuc control you have, that includes spindle stop/spindle orientation.Do you still have that?

[Mitsui Seiki]

Use "Optional stop" and run tool change using "Single block" and see what happens.

[Al_The_Man]

M,S,T codes are typically written in the PMC ladder, it is up to the MTB or OEM to include them, especially if the machine has a tool changer.
Al.

[CNCRim]

I guess you should check Optional Stop see if it is on or maybe the switch is loose, it is sound funny....... but maybe that's all it need and check machine parameter.

[codyst]

Originally Posted by inthezone This bridgeport series II is manual tool change only. Lemme guess, programming the PMC to stop the spindle and program during a tool change is a pain?

You could do it a couple of different ways. 1. Create a macro as mitsui suggested, where when M6 is fired you can bring it into position for a tool change stop spindle and orient(if needed) and then issue an M0(as long as the parameters aren't set to reset/rewind off of an M0). And you may also have to re initalize any work coordinate offsets you are using depending on the parameter settings.

O9006 (M6 Sub);
G91G28Z0;
M5;
M19;
M00;
M99;

Or..2. As you mentioned edit the ladder logic to stop the spindle and program. This should be a relatively easy edit if you're comfortable with getting in and making changes. If you're not comfortable with it and decide to go this route send me a PM and I'd be glad to help.