Originally Posted by
dhardt
I am on an installation of a boring mill, but I'll help as best I can...
Turret Clamp/Unclamp Alarm means that your turret either did not unclamp to allow it to index, or did not clamp after indexing.
Question 1: Did it index?
if no, does the ladder output a signal for turret unclamp?
did the solenoid activate for turret unclamp?
does the solenoid have hydraulic pressure at the incoming port?
Is the solenoid's spool shifting to allow the pressure to make it to the curvic's piston?
Is the curvic shifting to the unclamp position?
Is the curvic's "dog" moving away from the proximity switch that acknowledges the clamped position?
Is the proximity switch turning off?
Is the ladder seeing the signal from the proximity switch turn off? (...within the time that would avoid triggering the alarm?)
if yes, does the ladder see the input for VPF? (Verify Position Flag...the signal that the turret is in the correct position)
does the ladder output a signal for turret clamp?
did the solenoid activate for turret clamp?
does the solenoid have hydraulic pressure at the incoming port?
Is the solenoid's spool shifting to allow the pressure to make it to the curvic's piston?
Is the curvic shifting to the clamp position?
Is the curvic's "dog" moving toward from the proximity switch that acknowledges the clamped position?
Is the proximity switch turning on?
Is the ladder seeing the signal from the proximity switch turn on? (...within the time that would avoid triggering the alarm?)