4. AUTOMATIC OPERATION
When there are no more blocks for which to perform reverse movement
(when the nozzle has moved back along the path of all memorized blocks
or the nozzle has not yet started forward movement), operation stops.
This is referred to as reverse movement completion.
Upon reverse movement completion, the REVERSE MOVEMENT LED
goes off, and RVED (ReVerse EnD) blinks in the lower–right corner of
the screen to indicate that reverse movement is completed.
Upon reset (when the RESET key on the MDI panel is pressed, the
external reset signal is applied, or the reset and rewind signal is applied),
the memorized reverse movement blocks are cleared.
A feedrate for reverse movement can be specified using parameter (No.
1414). When this parameter is set to 0, the feedrate used for forward
movement is used.
For forward return movement, the feedrate for forward movement is
In reverse movement and forward return movement, the feedrate override
function, rapid traverse override function, and dry run function are
Reverse movement stops when any of the commands or modes listed
below appears. If an attempt is made during forward movement to stop
forward movement with feed hold stop and then move the beam in the
reverse direction when any of the commands and modes below is
specified, the reverse movement completion state occurs.
⋅ Cylindrical interpolation (G07.1, G107)
⋅ Polar coordinate interpolation mode (G12.1)
⋅ Inch/metric conversion (G20/ G21)
⋅ Reference position return check (G27)
⋅ Return to reference position (G28)
⋅ Return from reference position (G29)
⋅ 2nd, 3rd, and 4th reference position return (G30)
⋅ Floating reference position return (G30.1)
⋅ Machine coordinate system selection (G53)
⋅ High speed remote buffer A (G05)
⋅ High precision contour control (RISC) (G05P10000)
⋅ AI contour control (G05. IQ1)
⋅ Advanced preview control (G08)
⋅ Spatial circular interpolation (G12)
⋅ Starts the spatial corner rounding mode (G33)
⋅ Stops the spatial corner rounding mode (G34)
⋅ Three–dimensional coordinate conversion (G68)
⋅ Three–dimensional coordinate conversion cancel (G69)
⋅ AI–axis length compensation (G71)
⋅ Three–dimensional conversion (G98)
⋅ Three–dimensional conversion cancel (G99)
D Reverse movement
D Block that disables