Homing and limit in one switch.

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1 year 5 months ago #328306 by DarkPhoinix
Homing and limit in one switch. was created by DarkPhoinix
I am try homing and limits.For test i have only Y stepper driver installed.
Homing work.
but i limit stop not work. I need for safety and bad moves.

hal:
Code:
#Homing and limits net Y_HOME remora.input.09 => joint.1.home-sw-in

ini:
Code:
[AXIS_Y] #MAX_VELOCITY = 100.0 MAX_VELOCITY = 30.0 MAX_ACCELERATION = 30.0 MIN_LIMIT = 0 MAX_LIMIT = 30000.0 [JOINT_1] TYPE = LINEAR HOME = 0.0 MIN_LIMIT = 0 MAX_LIMIT = 30000.0 #MAX_VELOCITY = 100.0 MAX_VELOCITY = 30.0 MAX_ACCELERATION = 30.0 STEPGEN_MAXACCEL = 30.0 SCALE = 160.0 FERROR = 1.0 MIN_FERROR = 0.5 #HOME_SEARCH_VEL = -10.0 #HOME_LATCH_VEL = -3.0 #HOME_FINAL_VEL = 20 #HOME_IGNORE_LIMITS = YES #HOME_USE_INDEX = NO #HOME_OFFSET = -20.0 #HOME = -10.0 #HOME_SEQUENCE = 2 #HOME_OFFSET = 0.0 #HOME_SEARCH_VEL = 50 #HOME_LATCH_VEL = 50 #HOME_SEQUENCE = 50 HOME = 1 HOME_OFFSET = -3 HOME_SEARCH_VEL = -10 HOME_LATCH_VEL = 30 HOME_SEQUENCE = -1 #HOME_USE_INDEX = False #HOME_IGNORE_LIMITS = True

I read:
forum.linuxcnc.org/38-general-linuxcnc-q...tches-is-it-possible
forum.linuxcnc.org/38-general-linuxcnc-q...ng-on-a-single-input
www.forum.linuxcnc.org/49-basic-configur...sibly-wrong?start=60
forum.linuxcnc.org/plasmac/46160-homing-...ctive-before-backoff
linuxcnc.org/docs/devel/html/config/ini-homing.html

what do i need to do to make the limits work?
Why doesn't homing lock the stepper instantly and needs a monstrously slow motion for the initial search?
 

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1 year 5 months ago #328308 by DarkPhoinix
Replied by DarkPhoinix on topic Homing and limit in one switch.
added ini:
Code:
HOME_IGNORE_LIMITS = True

added hal:
Code:
net Y_HOME remora.input.09 => joint.1.home-sw-in joint.1.neg-lim-sw-in
Work!


I still need to figure out why the home search has to be done so slowly.

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1 year 5 months ago #328327 by tommylight
Replied by tommylight on topic Homing and limit in one switch.
In the ini file
HOME_SEARCH_VELOCITY
HOME_LATCH_VELOCITY
HOME_FINAL_VELOCITY
Any of those you have, set to some reasonable value in machine units per second.

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