Monitor chuck conditions

[tunitime]

Need help. I need to monitor the open condition of the chucks in the program. The machine is a LT15M with OSP7000L operating system. anyone know the code for this?

Thanks
Dave.

[OkumaWiz]

It will follow this format:

IF [VIRD[MLCK]EQ 1] NRUN (machine Lock input bit)

The variable I think you are looking for is CHCL for chuck clamp, but I'm trying to remember from 16 years ago, so double check the CHECK DATA screens on your machine and use the appropriate nemonic that toggles when the chuck is activated.

Best regards,

[budgieW]

Also try this one

(CHUCK OPEN DETECTION)
IF[VORD[1138] EQ 0]NALM1

NALM1
VUACM[1]='CHUCK CLOSED'
VDOUT[992]=2

[tunitime]

Thanks for the help. Now here's a question for you Okuma guys. I need to run the main spindle at 3500RPM and the live tool at 3500 RPM at the same time. Kinda like a grinding operation on a lathe. I am getting an alarm when I try to do this because I think the main spindle needs to be in the M110 mode. Anyone know a way to do this??? If you do you truly are a hero!!! Thanks,
Dave

[budgieW]

Turn off the interlock with M153

[tunitime]

Thanks. M153 in my book is the correct M code but it is also an option that I don't have. Does anyone know what Okuma charges to turn on these options?

[OkumaWiz]

Are you sure?? This should be standard on ALL Okuma M-tool lathes. If you enter the M153 in MDI does it give you an illegal M-code alarm?

Not trying to argue, but LT's have special things such as spindle air blow and chuck/open close during rotation as standard that other machines do not have. That being said, I've not run into any Okuma M-lathe that could not do what you are trying to do right from the factory...now synchronized rotation - that's a different story!

Best regards,

[tunitime]

Yeah, I get an "illegal M code" message. I get this with the m153 and the m166 codes. seams like everything else works even sync rotation cause I am doing a part transfer. Just my luck I get the bastard of the bunch.

[tunitime]

sorry, m169 not 166. also get the alarm on the M66- turret index position free code.

[OkumaWiz]

Try M141 for the C-axis clamp. That should work inside your canned cycle to reduce "clamping lag". M66 should also work as cycle time reduction function should be standard on the LT as well.

Sounds like somebody @ Okuma forgot to spec your machine correctly if it's an LT.

We have every LT they made except the LT-25, and they ALL have the codes you describe available to us.

Does sound like you have the "bastard" of the bunch.

You can also get your free indexing by moving the variable limit in Z on the LT. Positioning to either positive X or Z variable limit will allow the turret to index. You may want to use M203 on your rapid away moves in order to gain some time unclamping the turret as you rapid to the limit. BTW you can usually reach the limit by the time the turret is unclamped, so M66 doesn't help that much.

Best regards,