Pause with Spindle Turning Until Cycle Start is Pressed?

[Bill H]

I'm working on a lathe with a Fanuc 30i control and am testing an experimental device.  While this device is pressurizing, I want to pause program execution until Cycle Start is pressed.  The spindle must remain turning while pressure is building.  Since the time it takes to pressurize is variable, I can't just use a G04 command.  If the device works as it should, we'll automate the cycle, but for testing purposes I just want to keep it simple.  Any ideas how I can do this?  A macro of some sort?

[jstell]

M00 or M01 before you start pressurizing, then switch single block on, then M03, press cycle start and wait til pressurized, then single block off and press go?

[Bill H]

jstell:  Thanks, but this is too much operator intervention.  He's busy minding the pressurization and some other gizmos, so I need to get this down to a single button push.

 

[tryon]

Use block skip until pressure is ready

#33=0

WHILE[#33LT1]DO1

G4U5.(Build pressure)

/#33=1

END1

Continue 

 

 

 

 

 

 

 

[Bill H]

tryon:  I've got very little experience with macros.  Can you explain what's happening here, line by line?

[tryon]

M03S500

33=0        sets a variable 5o a value less than 1

 

WHILE[#33LT1]DO1. Starts a loop from DO1 to END1.  Executes the code between.  In this case a 5 second dwell every time the loop occurs

 

G4U5.(Build pressure while spindle turning)

 

/#33=1.  When block skip is on , this line is ignored.  This is the code that will cause the loop to be completed because #33 is no longer less than 1

 

END1.  End of the loop.  After the WHILE condition is made the code underneath END1 is executed 

You still need to have block skip on at the start of a cycle.  Then when you are ready to start after your pressure build you turn block skip off.  

 

[Bill H]

tryon:  Wow!  This is perfect!  Thank you so much!!

[crazy^millman]

Tryon excellent work!!!!

Should have a PLC logic taking a reading from the pressure switch back to the machine to relay the pressure has been reached to then complete the while/do loop process outlined by tryon.