
4.REFERENCE POSITION ESTABLISHMENT B-63783EN-1/01
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The timing chart for the basic procedure is shown below:
Fig. 4.7 (b) Timing Chart of Operation for Establishing a Reference Position
Procedure for establishing a reference position through automatic operation
If an automatic reference position return (G28) is specified before a
reference position is 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
- Setting the interlock signal (*IT, *IT1, *IT2, etc.) to 0
- Setting the controlled axis detach signal (DTCH1, DTCH2, etc.)
to 1
- Setting the servo off signal (*SVF1, *SVF2, 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
established, the operation for establishing a reference position stops:
- Reset
- Performing feed hold during movement from an intermediate
point to a reference position
- Setting the interlock signal (*AIT, *IT, *IT1, *IT2, etc.) to 0
- Setting the controlled axis detach signal (DTCH1, DTCH2, etc.)
to 1
- Setting the servo off signal (*SVF1, *SVF2, etc.) to 0
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.
ZRN
+J1
R e fe re n c e m a rk
ZRF1
Feed rate
FL speed
JO G m ode