Fanuc Door Interlocks

[scooch8292]

We currently have many Fanuc Robodrills with different versions of Fanuc controllers. We do not have 4th axis's on any machines which cause us to do a lot of fixturing and bringing the machine to the home position then stopping the program with a M0 command, and moving the part to the next position and continuing. Is there anything that can be added to or near to the M0 line that will activate the door interlock switch to enable the door to be opened mid-program? Or is this switch just laddered through the M30 command?

[chris m]

You can't open the door at M01 or M00? I have never heard of that. There is most likely a parameter you can change to allow that; call Methods

[scooch8292]

You can open the door at M0 or M01 but only after hitting the door open button. I was just hoping to have the program activate this button to take one more step out of the operators hands. My boss is actually contacting Methods this afternoon for another issue. He said he'd ask them this also. Thanks though.

[Jim at Gentex]

I believe Chris is correct.

There should be a parameter for that.

 

Our Deckel Maho DMU 80 was the same way.

Manual door unlock @ M0 was the factory default setting.

 

I found the correct machine constant that controls that action and changed it to auto unlock. Now the door automatically unlocks at M0.

[Dan Schnars]

There is a door interlock "keep relay" that you can toggle on or off by adjusting a parameter, You should be able to find it in your electrical diagram or ladder for the machine... The machinery dealers and Fanuc are reluctant to tell you about it because it overrides the interlock safety feature of the door... Went through this with a couple of machines here...

[scooch8292]

Yeah that's what I thought too, Dan and Jim. I'll get the manuals out and do some searching when I get a chance. Still waiting on the boss to contact Methods. Thanks guys.

[Dave.L]

With our Mazak's, even at the end of the program we need to press "door open"

 

I was told for Mazak, it can't be changed which is pretty dumb.

[spade117]

You will have to manually *adjust* the mechanism that tells the machine that the door is closed. The machine manufacturer will not tell you this.

[Dave Ball]

quote:

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I was told for Mazak, it can't be changed which is pretty dumb.

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Thats bull...ask them how they get the doors open on a M00 when the cell is attended by robots

[chris m]

quote:

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Ask them how they get the doors open on a M00 when the cell is attended by robots

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The robot pushes the "door open" button, dummy

 

 

You need an auto door for that, which I am sure is interlocked 16 ways from Sunday

[Dave.L]

quote:

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Thats bull...ask them how they get the doors open on a M00 when the cell is attended by robots

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Already asked that question and was told the plc is changed for those applications.

[Newbeeee™]

It's the PMC side of things (keep relay).

On a 31iA5 controller:-

K11.7 Setting 1 = The door is unlocked with M00/M01.

HTH

[scooch8292]

I'll check that out on Monday. Thanks Newbeeee.

[scooch8292]

That K11.7 is the ticket. Thanks Newbeeee!

[Newbeeee™]

Glad I had the chance to actually help someone round here.

I'm usually doing all the asking...

[Hitachi]

How about disconnect the interlock (just don't tell anybody)

 

Elco1971

X4 Mill L3 Lathe L1 5X

SolidWorks 2007 Sp3.1

XP Pro SP2

Intel 2.80 GHz 2GB Ram

NVidia Quadro FX4500

[scooch8292]

Been there done that, It's not an option anymore due to our "Health and Saftey Department". Had to go back through and get them all operational again.

[Hitachi]

Yeah I know what you mean, we had the same deal here, we have 50+ machines and it could be a potential safety hazard so they got re-connected.

 

Elco1971

X4 Mill L3 Lathe L1 5X

[Mic6]

quote:

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Health and Saftey Department

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Uggh. same here

[scooch8292]

This story gets better now. I had one machine I had changed this parameter on, that I was working on yesterday. One of our operators thought something was wrong with the machine and tried to reload all the parameters, that we keep on our network in case of emergency. Needless to say it's all f#$%'ed up now. You'd think he'd just hit the M01 button to shut it off.

[Guest CNC Apps Guy 1]

^^^^ ROFLMAO

 

Man, even I don't just do that without talking to FANUC first and I know what I'm doing. You have yourself a real Darwin Award winner there.

[scooch8292]

Yeah, they take a couple computer classes at the community college and spend time surfing our net work (when they should be running parts on the machines)and they think that they're rocket scientists. We're gonna have a little converastion when he gets in tonight.

[Guest CNC Apps Guy 1]

 

I would LOVE to be a fly on the wall in that meeting.

[gaijin_2007]

We used to use M02 on older Hitachi Seiki machines to flip the interlock switch off.

With M01 the operator had to go into manual and press the button but M02 stopped the program and flipped the interlock off so they could just open the door, do what they needed to do, close the door and press cycle start.

Not sure if it's set up like that on your machines though.

[Hitachi]

Yeah we don't let just anybody mess with the machine parameters, lucking not everyone here knows how to go in, unlock, and reload them, that would be a huge disaster

 

 

Elco1971

X4 Mill L3 Lathe L1 5X