Ability to disable "safe height of Z axis" parameter #82

math_indy

Parameter #82 "safe height of Z axis" returns the Z-axis to the specified height at the beginning of every program cycle.  I would like the ability to disable this feature as it is undesirable in some situations especially when using programs that use G91 "incremental".


I have parameter #82 set to "0" but this is not the same as "disabling parameter #82" because the Z-axis still returns to Z0.0 at the beginning of every program.  For example, in the program below I want it to incrementally remove 0.001" from a surface every time it runs (Z-0.001, Z-0.002, Z-0.003,.. etc.) .  


If, because of parameter #82 the DDCSV2.1 always returns to Z0.0 at start then my use of G91 to incrementally lower the Z-Axis by -0.001 every cycle means it never decends below -0.001.


(BASIC SURFACE GRINDING PATTERN)
G20
G90
G54
M3 (SPINDLE ON)


(THIS BLOCK OF INCREMENTAL CODE WILL NOT WORK AS INTENDED BECAUSE OF PARAMETER #82)
G91 (INCREMENTAL)

G01 F250. Z-0.001
G90 (BACK TO ABSOLUTE)

G01 F6350. X10.0 (GRIND)
G01 F6350. X0.0
M5 (SPINDLE OFF)

ytliu

If you want to turn off this feature, you can empty the contents of safez.nc in the installation package and install it to the controller.

math_indy

I removed the M98 P101 that was inside the safez.nc file and, as you said, this fixes the issue for me.