Running an indexer from the auxilary socket

[ANGAENGINEERING]

I've got a pneumatic indexer which I'd like to control from my control which is a Fanuc O-m control. What I'd like to do is program aux out, which would then operate a relay or solenoid and when the indexer has indexed it could trip another switch which would be connected to Aux in and then the machine could continue. My question is how do I use the Aux output to control the relay or solenoid, eg what signal do I get out the machine, and how do I feed a signal back to the Aux in to tell the machine that indexing is complete and to carry on machining.

THANKS

[MysticMonkey]

Please Define Auxiliary Socket

[ANGAENGINEERING]

There is a socket on the machine with an AUX label on it. I believe I'm able to program an M code, not sure which one, which will output a signal through the auxilary socket which I'd like to use to activate the indexer. I believe I can also put in another M code that means the machine won't continue through the program until it recieves an aux in signal. I don't know what signal I get for aux out or aux in and how I can use them to drive the indexer

[Al_The_Man]

You will need to refer to the OEM manuals to see if it was programmed that way, it could just be an auxiliary socket for general purpose use, and not controlled by the PMC at all?
If it needs a FINish signal, you need to know the PMC input for the same.
Al.

[ANGAENGINEERING]

I believe this is the same socket as used by the single axis stand alone controllers sold by Haas and Centroid and probably others. You plug the controller in and when an M code is programmed (aux out) the machine stops and whatever you have connected to the standalone unit, eg, rotary table, indexer, etc then moves round by whatever you have programmed the stand alone unit. When it is in position it then sends an aux in signal back to the machine so that it can carry on. There's nothing in the manual describing in detail what you get out or have to put back in.

[Al_The_Man]

Who is the MTB? as this will have been decided by them, this is not a Fanuc feature, per se.
There are hardware concerns as well as software, M codes assignments etc.
It is impossible to offer any more without further information.
Can you communicate with the MTB?
Al.

[sinha_nsit]

The other way could be to use the unused X- and Y-signals, and modify the ladder suitable.
Or, if there is an M-code which you do not use, you can perhaps use the relay it controls, for some other purpose.

[ANGAENGINEERING]

There is a single axis servo control which is controlled by an M code and also a pneumatic indexer.

http://www.centroidcnc.com/cnc_rotary_indexer.html

The description of the control next to the indexers says 'command from your cnc with M codes' and also 'designed for use with any make cnc/nc machine tool'

Another pneumatic indexer is

http://www.ptgworkholding.co.uk/inde...d/10/refpage/1

Stated on page 'operates by 'M' code'

These both operate with any cnc from M codes. I believe these M codes are the aux out and aux in. Possibly M 62, Aux 1 on and M66, wait for input 1.

[Al_The_Man]

The end equipment is not the problem, even knowing the M code(s) that may be assigned to the Aux port, you need to know the electrical interface details, (PMC I/O type) etc.
Your MTB should be able to supply them, we still do not know the make of the machine (MTB)?
Al.

[ANGAENGINEERING]

It is a Denford Triac VMC with Fanuc OM control

[MysticMonkey]

If your machine is built to output a signal on an m-code

when you run that m-code you will see the voltage on one of the pins on your AUX socket go 'high'

if it stays high after the initial state change it is most likely waiting for a finish signal.

you need to check your electrical manual to find the correct pin for this m-code finish

you need to check the PLC schematic to see if this m-code is designed to be used with an indexable axis i.e. it doesn't negatively interfere with the operation of any other part of the machine.

[sinha_nsit]

I am not sure whether the following information has any relevance with the current issue:
The Operator's Manual of 0i MB states that G81 can be used for drilling as well as "external motion function", depending on parameter 5101#1.
Syntax: G81 IP_; (IP_ Axis move command)

"Upon completion of positioning ... , an external operation function signal can be output to allow the machine to perform specific operation."

"Concerning this operation, refer to the manual supplied by the machine tool builder."