
B-63784EN-1/01 OPERATION 4.AUTOMATIC OPERATION
- 167 -
- Start of reverse movement and forward return movement after single block halt
Reverse movement or forward return movement can be restarted after a
single block halt by switching the reverse movement signal and
restarting program execution.
- Dwell (G04)
The dwell command (G04) is executed in reverse movement and
forward return movement in the same way as during regular operation.
Limitation
- Blocks that do not allow reverse movement
Reverse movement cannot be performed for the blocks listed below.
When forward movement is stopped by feed hold during the execution
of one of these commands or modes, after which an attempt is made to
perform reverse movement at that point, reverse movement terminates
immediately. When one of the following commands is encountered
during reverse movement, the reverse movement terminates at that
point, and "RVED" is displayed.
- Inch/metric conversion (G20,.G21)
- Functions related to reference position return (G27, G28, G29,
G30)
- Floating reference position return (G30.1)
- Thread cutting (G33)
- Remote buffer (G05)
- Circular thread cutting B (G20.1, G30.1)
- Polar coordinate interpolation (G12.1, G13.1)
- Cylindrical interpolation(G7.1)
- Exponential interpolation (G02.3, G03.3)
- Involute interpolation (G02.2, G03.2)
- Spline interpolation (G06.1)
- NURBS interpolation (G06.2)
- Chopping function (G81.1)
- Rigid tapping cycle (G84.2)
- Cs contour control
- Three-dimensional coordinate system conversion (G68, G69)
- Manual intervention
To perform reverse movement after operation is stopped by feed hold
or single-block stop, after which manual intervention is made, return
the tool to the stop position, then turn on the reverse signal. Movement
made by manual intervention is ignored in reverse movement and
return movement.