Syntax
ACC[<axis>]=<value>
ACC[SPI(<n>)]=<value>
ACC(S<n>)=<value>
Deactivate:
ACC[...]=100
Syntax
ACC: Acceleration change for the specified path axis or speed change for the
specified spindle.
<axis>: Channel axis name of path axis
SPI(<n>)/S<n>: Spindle identifier
SPI(<n>) and S<n> are identical in terms of function.
<n>: Spindle number
Note:
SPI converts spindle numbers into axis identifiers. The transfer parame‐
ter (<n>) must contain a valid spindle number.
<value>: Acceleration change in percent
The value refers to or is combined with the feedrate override set on the
machine control panel.
Range of values: 1 to 200%, integers
Note
With a greater acceleration rate, the values permitted by the manufacturer may be exceeded.
Example
Program code Comment
N50 ACC[X]=80 ; The axis slide in the X direction should only be trav-
ersed with 80% acceleration.
N60 ACC[SPI(1)]=50 ; Spindle 1 should only accelerate or brake with 50% of
the acceleration capacity.
Further information
Acceleration override programmed with ACC
The acceleration override programmed with ACC[...] is always taken into consideration for the
output, the same as in system variables $AA_ACC. Readout in the part program and in
synchronized actions takes place at different times in the NC processing run.
Fundamentals
2.7 Feed control
NC programming
126 Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
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