forum.cncdrive.com

Hello,

I'm looking for a custom homing procedure to achieve a very fast homing sequence. The trick I want to use is using a secondary proximity sensor that trigs before the home sensor (let say 50mm before). So the homing procedure will be :
- moving at homing speed (slow speed) for 55mm to check the home sensor (in the case of the axis already between the 'pre-homeing sensor" and the home sensor).
- If the home sensor is trigged, so the axis has reach its home position
- otherwise, if the home sensor not trigged after 55mm, moving fast (max jog speed) until "hitting" the pre-homing sensor
- since then, continue at homing speed until the home sensor will trig

Is it possible to customize the homing sequence like that ?

I dont see the point doing this.
You have a homing up and down speed setting.
So you could set the up speed fast and the down speed low.
The home position is registered on the downward slow movement, so it will be precise.

Sorry for the last feed back.

THe purpose is : at full motion speed, it needs more than 4 mm to stop (4mm is the detection distance of my inductive sensor). So i would like to add a second switch than will trig several centimeter before the inductive switch, allowing slow down to the normal homing speed.

You could use the probing function with a second prox switch to detect the slowdown point then switch to a normal homing sequence all inside a macro call.

(;-) TP

use a longer homing tag (sensed by the prox switch)
it will enter at full speed- decelerate then back off.
i do this and home at 5m/minute fine.

and park just a short distance from home