Need Help!- 4th axis disable/enable

[davesnd]

Hello - I am having trouble with a Dah-Lih VMC with Fanuc 0-Mc control. I want to be able to enable and disable the 4th axis - it looks like the machine came new with a 4th axis and has never had it disconnected before. If I disconnect the 4th axis cables I get alarms - the machine doesn't have a 4th neglect toggle switch like others I've seen. Is there some simple way (using parameters perhaps?) to enable or disable the 4th axis without adding the physical neglect switch hardware?

[BKCOM]

It depen on Keep Relay, designed by Machine tool builder

[John_B]

I did this last week on my machine with the 0m-C control, it's a different brand but it may work the same. Parameter #19 bit 1 controls the 4th axis neglect function, change it to 1 and the control should ignore the 4th axis not being hooked up.

Look in your parameter manual, it should be described there. If you don't have this, send me a PM with an e-mail address and I'll get you some info.

There are a few threads on here that discuss this also.

Rgds,
John

[gwarble]

also check your "software operator panel" which the MTB may have used to add a 4th axis neglect switch (thats how my hardinge/bridgeport vmc xp3 1000's are)

- gwarble