Need Help!- How 6M Diagnostic screen works ?

[Drew]

My 6M mill has quit tool changing. Although the TC in position, spindle orient, and tool unlock lamps are lit, the machine does not unload the tool.
The machine will unload tool by jumping the signal side of the opto22 rack.
I have no latter or wiring prints for this machine. I think the Fanuc i/o board is the problem but not sure. From working with what works I think the output is diag2.3 for unload spindle, 2.2 for load spindle,2.1 unlock tool, and 2.0 for lock tool. I can make the opto led flash by inputting diagnostic data for all but 2.3 .And during tool change 2.3 does not change to 1. So if the board is trying to send signal will it change diag data if the relay on board is bad? Or does it verify that the signal is working in which case it could be i/o board or waiting on something else? And should the bit change if I jump the wire at the opto rack?
Thanks Drew

[Al_The_Man]

000-639 are the I/O signals.
In diagnostic, select the I/O number by using the NUMBER button the condition can be seen for all 8 bits for 1 or 0 (on or off).
Al.

[Drew]

What I'm not sure about is if it verifys that the signal is working or just shows that it should be on ?

[Al_The_Man]

If it is an input, then the 0 or 1 is the actual status of the input.
Outputs can show an on status but not necessarily produce an output if the output relay is bad for example.
Al.

[Drew]

Is it hard to get a ladder diagram from Fanuc for a machine ?
It is a Burgmaster vtc150 and they are out of business.
Thanks Drew

[alexfanuc]

Originally Posted by Drew Is it hard to get a ladder diagram from Fanuc for a machine ? It is a Burgmaster vtc150 and they are out of business. Thanks Drew

The ladder of the machines are not made by FANUC. The machine builder should have a copy of the ladder but since they are out of bussiness you need to find a similar machine from someone or make a retrofit if you want to change the ladder.

Regards

Alexfanuc