G50 Chuck Pressure Monitor

Classic Control - Lathe Operator's Manual

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The optional P and Q address codes command the machine to monitor the chuck pressure. P specifies the desired chuck pressure in PSI (if Setting 9 is INCH) or bar (if Setting 9 is METRIC). Q specifies the tolerance percentage for the chuck pressure value. The default is 10%. For example:

G50 P250. Q5, ; commands the control to monitor the chuck for 250 psi of pressure +/- 5% (235-265 psi).

If the chuck pressure falls below the given range for more than 0.25 seconds, an alarm stops the machine. The chuck pressure gauge on the DIAGNOSTIC display shows the current pressure and the designated range:

The control monitors chuck pressure on the main spindle only. Chuck pressure monitoring is disabled at power-up, a chuck unclamp command, program end, or RESET.

Be aware: Many service and repair procedures should be done only by authorized personnel. The service technicians at your Haas Factory Outlet (HFO) have the training, experience, and are certified to do these tasks safely and correctly. You should not do machine repair or service procedures unless you are qualified and knowledgeable about the processes.

Danger: Some service procedures can be dangerous or life-threatening. DO NOT attempt a procedure that you do not completely understand. Contact your Haas Factory Outlet (HFO) and schedule a service technician visit if you have any doubts about doing a procedure.

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