currently have a CentralizedLubricator but it works differently from lube.py
Code:
#!/usr/bin/python
import linuxcnc, hal, time
lube = hal.component("lube")
lube.newpin("fault", hal.HAL_BIT, hal.HAL_OUT)
lube.newpin("run", hal.HAL_BIT, hal.HAL_OUT)
lube.newpin("delay", hal.HAL_BIT, hal.HAL_OUT)
lube.newpin("machine_status", hal.HAL_BIT, hal.HAL_IN)
lube.newpin("spindle_status", hal.HAL_BIT, hal.HAL_IN)
lube.newpin("pressuresw_floatsw", hal.HAL_BIT, hal.HAL_IN)
lube.newpin("reset", hal.HAL_BIT, hal.HAL_IN)
lube.ready()
#initialize variables
lube['run'], lube['fault'] = 0, 0
try:
while 1:
time.sleep(0.5)
lube['delay'] = 0
#1. machine needs to be on
#2. spindle needs to be running like in a g-code program
#3. there should be no pump faults
if(lube['machine_status'] and lube['spindle_status'] and not lube['fault']):
lube['run'] = 1;
time.sleep(10) #run pump for 10s
if(lube['pressuresw_floatsw']):
time.sleep(50) #continue running pump for an additional 50s
lube['run'] = 0;
lube['delay'] = 1; #show that pump is resting
time.sleep(720) #let the pump rest for 720s (12 min)
else:
lube['run'] = 0; #shut off pump immediately
lube['fault'] = 1; #there is a fault if input 14 becomes active (fluid low or a big leak somewhere)
#gives user to ability to reset the fault after fluid was filled or leak was fixed
if(lube['reset']):
lube['fault'] = 0;
lube['reset'] = 0; #reset the reset!
except KeyboardInterrupt:
raise SystemExit
I have the same components as lube.py except that my engine runs more slowly 0.13333 RPM with a reduction behind. so it sends oil about every 10 minutes.
not knowing the python language i wanted to know if with the hal Component if it is possible to implement a timer that works when the machine and the spindle are enabled. reset the timer when an oil pressure is received, activate the output of the timer if the timer=preset, which indicates that the motor is in fault or big leak.
TON can be considered but I would like the time to remain in memory if the spindle is stopped and resume the timer when it is on
