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1. move in the negative x direction at SEARCH_VEL speed until the home/limit switch is activated,
2. back off the home/limit switch at SEARCH_VEL speed in the positive x direction, 
3. move in the negative x direction at LATCH_VEL speed until the home/limit switch is activated,
4. move in the positive direction at HOME_FINAL_VEL to the home position.

...
# --- MIN-X ---
net min-x <= hm2_7i96s.0.inm.00.input-00
...
# https://www.linuxcnc.org/docs/html/config/ini-homing.html#_home_ignore_limits
# If you do not have a separate home switch set HOME_IGNORE_LIMITS to YES
# and connect the limit switch signal to the joint home switch input in HAL
# Original
#net x-home-sw => joint.0.neg-lim-sw-in
net min-x => joint.0.neg-lim-sw-in joint.0.home-sw-in
net x-pos-limit => joint.0.pos-lim-sw-in

[AXIS_X]
MAX_VELOCITY = 5.483333333333333
MAX_ACCELERATION = 4.0
MIN_LIMIT = -0.001
MAX_LIMIT = 39.0

[JOINT_0]
TYPE = LINEAR
FERROR = 0.5
MIN_FERROR = 0.05
MAX_VELOCITY = 5.483333333333333
MAX_ACCELERATION = 4.0
STEPGEN_MAXVEL = 6.85
STEPGEN_MAXACCEL = 5.00
P = 1000.0
I = 0.0
D = 0.0
FF0 = 0.0
FF1 = 1.0
FF2 = 0.0
BIAS = 0.0
DEADBAND = 0.0
MAX_OUTPUT = 0.0
# these are in nanoseconds
DIRSETUP = 6000
DIRHOLD = 6000
STEPLEN = 3000
STEPSPACE = 3000
STEP_SCALE = 2037.25
MIN_LIMIT = -0.001
MAX_LIMIT = 39.0
HOME_SEARCH_VEL = -0.2
HOME_LATCH_VEL = -0.05
HOME_FINAL_VEL = 0.1
HOME = 1.0
HOME_OFFSET = 5.0
HOME_IGNORE_LIMITS = YES
HOME_IS_SHARED = 1
HOME_SEQUENCE = 2

cmorley wrote:

The 'def get_handlers(halcomp,builder,useropts):' function has the wrong indent.It should have no indent just like the class definition.Ok, I simplified my test code (see attached .py) and started to see some light at the end of the tunnel. However, When I click on either the on-min-clicked or on-max-clicked buttons, the logging shows that the call to get_factor() is written before the line identifying the handler being called (set attached .log).  Further, only the first line of each handler or function is being printed, but no errors are being tossed that I can find.Any ideas?

• Minimum frequency of the motor: 100Hz (6000 RPM)
• Maximum frequency of the motor: 300Hz (18000 RPM)
  
  
  In pncconf I set the max spindle speed to 18000 which I can see in the machine.ini file:

  [SPINDLE_0]
  ...
  MAX_OUTPUT = 18000.0
  OUTPUT_SCALE = 36000
  OUTPUT_MIN_LIMIT = 0
  OUTPUT_MAX_LIMIT = 18000

   
  However, in the same file, I see the qtdragon display section with the following:
  

  [DISPLAY]
  DISPLAY = qtvcp qtdragon
  ...
  MAX_SPINDLE_0_OVERRIDE = 1.000000
  MIN_SPINDLE_0_OVERRIDE = 0.500000
  DEFAULT_SPINDLE_0_SPEED = 500
  MIN_SPINDLE_0_SPEED = 100
  MAX_SPINDLE_0_SPEED = 2500
  ...

  
  When I select FWD/REV in the gui, I am seeing the spindle spin in the correct direction and the VFD is correctly driving at 100Hz (i.e. the minimum safe speed for the spindle set in the VFD programming). Do I need to manually change DEFAULT_SPINDLE_0_SPEED, MIN_SPINDLE_0_SPEED, MIN_SPINDLE_0_SPEED? in the QtDragon [DISPLAY] settings in my .ini file or should pncconf be sorting this out?