
B-63943EN-1/02 4.REFERENCE POSITION ESTABLISHMENT
- 511 -
The timing chart for this procedures is given below.
JOG
ZRN
+J1
Reference mark
ZRF1
Feedrate
FL rate FL rate FL rate
Fig.4.7(b) Timing chart for reference position establishment
- Procedure for establishing a reference position through automatic operation
If an automatic reference position return (G28) is specified before a
reference position is not established, steps (3) to (5) above are
performed automatically.
After the reference position is established, the automatic reference
position return is performed.
- Stopping the operation for establishing a reference position
The operation for establishing a reference position is stopped if any of
the following operations is performed in steps (3) to (5), described
above.
- Reset
- Setting the feed axis direction selection signal (+J1, -J1, +J2, -J2,
etc.) to 0
If any of the following operations is performed during the operation of
automatic reference position return (G28) before a reference position
is not established, the operation for establishing a reference position
stops:
- Reset
- Performing feed hold during movement from an intermediate
position
If the operation for establishing a reference position is stopped by an
operation other than a reset, the operation for establishing a reference
position must be reset and resumed.