
2. In case of changing feedrate
When the feedrate is changed, the feedrate is changed as follows. ’
In case of deceleration
To ensure that the specified feedrate for a block is reached when the block is executed,
deceleration of bell type is started in the previous block.
In case of acceleration
Acceleration of bell type is started to reach the specified feedrate for a block when the
block is executed.
Deceleration
Fa
Fb
Feedrate
Acceleration
Feedrate
Fb
Fa
Nl
>Time
3. Difference with look ahead bell-type acceleration/deceleration before interpolation with
RISC
When the deceleration begins while accelerating, there is a difference like the next figure
between the look ahead bell-type acceleration/deceleration before interpolation with RISC and
the look ahead bell-type acceleration/deceleration before interpolation without RISC ( this
function ).
TITLE
FS16318i-MA, FSl6/18-MC
Look ahead bell-type acceleration/deceleration
before interpolation Specifications
01 1 97.01.23 1 1 Newly registered
I
DBAU, NO.
A --6 0 8 9 8 E N 1 “ST,
EDIT.
DATE
DESIG.
DESCRIPTION
F A N U C L T D 1 SHEBT 9’ 6
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