
B–63832EN/01
6. REFERENCE POSITION
NC FUNCTION
65
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
With the G30 command, the commanded axis is positioned to the 2nd,
3rd, or the 4th reference position, via the commanded point. 2nd, 3rd, or
4th reference position return end signal is output when positioning ends.
Set the 2nd, 3rd, and 4th 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, 3rd, and 4th reference point (same
as reference position return, G28) (M series only).
This function can be used once reference position return has been
performed after power–on.
G30
P2
P3
P4
_ ;
IP
P2, P3, P4: Select from 2nd, 3rd, or 4th reference positions.
If not selected, 2nd reference position return is
automatically selected.
6.4
REFERENCE
POSITION RETURN
CHECK (G27)
Format
6.5
2ND, 3RD AND 4TH
REFERENCE
POSITION RETURN
(G30)
Format