B–64113EN–1/01
7. FEEDRATE CONTROL/ACCELERATION
AND DECELERATION CONTROL
405
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 During acceleration/deceleration before interpolation, a
G31 block (skip function) is not subjected to acceleration/
deceleration.
5 If the machine lock signal (MLK1 to MLK8) 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 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 (M series).
10 The error detect signal (SMZ) is invalid during
acceleration/deceleration before interpolation (T series).
11 If an overtravel alarm occurs during acceleration/
deceleration before interpolation, the movement is
decelerated and stopped. As deceleration and stop are
performed after the alarm occurs, the tool will overrun by the
distance required for the deceleration.
12 When feed per revolution is specified during
acceleration/deceleration before interpolation, the spindle
speed can be set to up to 30000 min
–1
in theory.
13 If switching between feed per revolution and feed per
minute is performed at the interface of two blocks during
acceleration/deceleration before interpolation, the
movement is decelerated and temporarily stopped in the
previous block.
Note