
B–63172EN/01
5. REFERENCE POSITION
NC FUNCTION
41
This function is used to check whether the reference position return
command was performed correctly.
When G27 is commanded, the commanded axis is positioned to the
specified position, reference position return end signal is output if
reference position return is performed to the correct position, and alarm
arises it is not positioned correctly to the reference point.
This function is available after power is turned on an reference point
return is performed.
G27 _ ;IP
: Command reference position
IP
With the G30 command, the commanded axis is positioned to the 2nd or
3rd reference position, via the commanded point. 2nd or 3rd reference
position return end signal is output when positioning ends. Set the 2nd
and 3rd reference position position as parameters.
This function is available after power is turned on and reference position
return is performed.
G29 can be used to return from the 2nd and 3rd reference point (same as
reference position return, G28)
G30
P2
P3
_ ;IP
P2, P3 : Select from 2nd or 3rd reference positions.
If not selected, 2nd reference position return is
automatically selected.
: Command intermediate position
IP
5.4
REFERENCE
POSITION RETURN
CHECK (G27)
Format
5.5
2ND AND 3RD
REFERENCE
POSITION RETURN
(G30)
Format