lathe chuck open/closed parameters

[PinnacleMachine]

I have a OT-C controller and would like to know how to get the control to use the limit switches on the chuck actuator to verify chuck open/closed. I'm assuming there is a parameter that I can change but I don't have the Fanuc manuals for my machine. I have them wired up correctly.

Thanks
JP

[dcoupar]

This is probably a keep relay. What make/model of machine?

[PinnacleMachine]

The machine in question is a 1989 Akebono ANCL-35 gang lathe - the same machine as a Hardinge Conquest GT of the same vintage.

JP

[guhl]

Find out which output activates the chuck, following the wire from the valve. Read the address on the end of wire (Y005.7 (example))(I don't know English term signifies the part of the polyvinylchloride tube with number of wire or the address on the end of wire). Then find in ladder this output. See if there are contacts named D505.6 (example) or other Dxxx.x in line ended by this this output. These are keep relays. Keep relays may lock some branches of the logical line with output.
Turn on or off diagnostic bits corresponded to names of keep relays if needed. For instance D505.6 means dianostic parameter 505 bit 6.

[PinnacleMachine]

Thanks that worked - I have the machine specific manual with the PLC ladder and was able to sort it out.