Detailed Description 
  2.3 Feedrate control 
Feeds (V1) 
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0 
2-45 
Percentage acceleration override 
ACC[Axis] 
ACC[Axis]= 0 .. 200 can be used to modify the acceleration set in machine data: 
MD32300 MAX_AX_ACCEL 
in a range between 0% and 200% in part programs and synchronized actions.  
 
Axis =  Channel axis name (X, Y ....), spindle (S1, ...) 
ACC[Axis]= <value> 
Where
Value =  Percent of MD32300 MAX_AX_ACCEL 
(0 <= value <= 200) 
The current acceleration value can be called with the system variables $AA_ACC[Axis]. It is 
determined by: 
$AA_ACC[Axis]= Content(MD32300 MAX_AX_ACCEL[Axis]) * ACC[Axis]/100 
 
 
Note 
The acceleration offset programmed with ACC[...] is always considered as specified 
above for the output in $AA_ACC. However, $AA_ACC is not output in the part program at 
the same time as in a synchronized action. 
The value described in the part program is only considered in the system variable $AA_ACC 
as described in the part program, if ACC has not been changed in the meantime by a 
synchronized action. 
The value described in the synchronized action is only considered in the system variable 
$AA_ACC as described in the synchronized action, if ACC has not been changed in the 
meantime by a part program. 
 
Main run axes 
Main run axes (MR axes) are axes that are interpolated by the main run and can be: 
•  Command axes (activated by synchronized actions) 
•  PLC axes (started by PLC via function block) 
•  Asynchronous oscillating axes (setting data or from part program) 
•  Neutral axes