
2. FUNCTION SPECIFICATIONS THAT DIFFER
FROM THE M series
B–63683EN/01
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control restart signal
RVSG08
End of N3 execution
Automatic operation
in–progress signal
STL
Backward move-
ment signal RVS
Operation pause
*SP
Machining error
Automatic operation
start ST
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control mode signal
Re–forward point
2. Signal processing during retrace
(1)Signals TF and MF are output during both backward movement
and re–forward movement.
(2)Signals PF and NBL are not output during backward movement but
are output during re–forward movement.
3. Block not supporting backward movement
If any of the following commands or modes is encountered during
backward movement, backward movement is terminated.
(1)Inch/millimeter conversion (G20/G21)
(2)Floating reference position return (G30.1)
(3)Machine coordinate system selection (G53)
(4)Reference position return (G28)
(5)Coordinate system setting (G92)