programable mirror imaging

[samu]

Machine:hardinge VMC 1000
Control:fanuc 0M-D

If i look in the machine manual, it's written that i can program a mirror imaging combined with a scaling with G51 X Y I J K
X:center of scaling and/or mirroring
y:center of scaling and or mirroring
I:X axis scale factor (put a negative value to activate mirroring)
J:Y axis scale factor (.....
K:Z

G50 to cancel.

First try, i got alarm 142.
look at parameter, turn #63.6 to 1 (Scaling and programmable mirror image on eachaxis are disabled/enabled.)

Retry, no alarm but the program was shifted along the X axis. Try to change X and Y in the G51 line. No effect.

i did som test in mdi, sometimes the commanded move is ignored and then, origine is shifted by the igored move. The move that are not igored are not mirrored. and i had to rehome the machine to bring back the right origine. I spend to much time on that function. Any help will be welcome.
thanks

[sinha_nsit]

Read the attachment. It might answer your query.