REDUNDANT C AND B WITH NO UNLOCK

[motor-vater]

Problem of the day, I am getting some redundant C and B axis positioning out of my 5 axis post. Any body seen this before its driving me nuts. with no unlocks it just alarms out. 

[Jayson Kramer]

Pete need more info like what post and cnc machine is this for. looks like 3+2 of course.

[motor-vater]

Thanks Jay, Not even really sure, one we've had for ever. Reseller is not very helpful because although we pay maintenance we dont pay support. Heres a screen shot of the header

[Colin Gilchrist]

The culprit is probably 'protretinc'. This Post Block uses this switch: 'frc_cinit' (force 'c' initialize), as a 'global switch' to force out the 'Rotary Zero' calls.

Try turning off 'frc_cinit'.

frc_cinit   : no$    #Force Rotary Zero at Tool Change?

The comment after the 'yes$' might say something different, but it is the same switch.

Also, it might have a '1' instead of 'yes$'. They are functionally the same. So use a '0/1' or a 'no$/yes$' value to indicate if the function if off or on.

[motor-vater]

Ah man good try, sadly no victory... Thank you

[crazy^millman]

I have a copy of that post for your company. In the ptlchg0_out section there is forced B0 C0 here:

if g43_flg & prv_map_mode = 2,
          [
          prv_workofs$ = -9999
          pbld, n$, sg00, sg90, pwcs, "B0", "C0", e$
          prv_p_out = 0, prv_s_out = 0
          ]

I would try commenting that out see what that does.

ptlchg_out

      ##if use_clamp & cuttype = zero,
        ##[
        ##p_lock = zero
        ##s_lock = zero
        ##pbld, n$, s_slock, e$
        ##pbld, n$, s_plock, e$
        ##]

      ptoolcomment
      sav_t = prv_t$
      n$ = t$
      *n$, e$
      if stagetool <= one, pbld, n$, *t$, "M6", e$
      if stagetool = one, pbld, n$, *next_tool$, e$
      if g43_flg,
        [
#        !xabs, !yabs
#        xabs = 0
#        yabs = 0
        p_lock = zero
        s_lock = zero
        pbld, n$, *s_slock, e$
        pbld, n$, *s_plock, e$
        ]
      if t$ <> sav_t,
        [
        prv_speed = -99999
        prv_spdir2 = -99999
        ]
      pcan1, pbld, n$, pwcs, "B0", "C0", speed, spindle, strcantext, e$

There is also a forced B0 C0 in the ptlchg_out. I would comment it out and see what it does. It looks like to me Logic for drilling needs to be added to the post to turn it off when doing drilling cycles and other things where you don't need this forced all the time. That is a very old post dating back to X4 or X5 I believe. Might talk the Sons into looking at getting a 2020 post and go from there. I did that to help you not them out so hopefully it does. 

[motor-vater]

Thanks Ron, will take alook at that tomorrow. And I get the feeling I dont want to ask the hows and whys... lol atleast not here, but as always "I" am super greatful for the help.