
B–63503EN–1/01
7. FEEDRATE CONTROL/ACCELERATION
AND DECELERATION CONTROL
317
F
OT
: Feedrate at the time an overtravel alarm occurs during linear accel-
eration/deceleration before interpolation (parameter No. 1784)
FIX: Any fractional part is truncated.
NOTE
1 If a block without a move command is found during
acceleration/deceleration before interpolation, the
movement is decelerated and temporarily stopped in the
previous block.
2 If a one–shot G code is specified during acceleration/
deceleration before interpolation, the movement is
decelerated and temporarily stopped in the previous block.
3 If an M, S, or T code is specified in a block containing a move
command during acceleration/deceleration before
interpolation, the movement is decelerated and temporarily
stopped in that block.
4 Even during acceleration/deceleration before interpolation,
the block of G31 (skip function) is not subjected to
acceleration/deceleration.
5 If the machine lock signal (MLK1 to MLK4) for an axis is set
on or off during acceleration/deceleration before
interpolation, the axis for which machine lock is performed
is not subjected to acceleration/deceleration.
6 During acceleration/deceleration before interpolation,
automatic corner override is enabled only when the internal
circular cutting feedrate is changed.
7 Even during acceleration/deceleration before interpolation,
acceleration/deceleration after interpolation can be
executed. So that acceleration/deceleration is executed
only before interpolation, set the time constant for
acceleration/deceleration after interpolation to zero.
8 In acceleration/deceleration before interpolation of type B,
deceleration is started if preprocessing for the next block
has not been completed before the remaining distance of
the current block becomes less than that needed to
decelerate and stop the movement.
9 If an F1–digit command is executed in the inch input system,
avoid specifying a command for simultaneous movement
on two axes, including a rotation axis during
acceleration/deceleration before interpolation.
Note