Setting Up 
5-4   SINUMERIK 801 
  Start-Up
 
 
 
4.2  Starting Up the Dynamic Characteristic of the Axes 
 
General For SINUMERIK 801, the dynamic characteristic of the axes can be started-up 
through machine data settings.     
 
SINUMERIK 801  Test the dynamic characteristic of the axes in JOG mode, set the max. 
velocity of each axis and select suitable acceleration curves. 
 
Velocity 
Time 
V
max
MD32300 max. axis acceleration 
MD35230 reduced acceleration factor: value 
40% ... 95%
MD35220 speed for reduced acceleration: values from 
80% …20% 
 
  Table 4-1 Parameterization 
MD Designation Unit Axis
Input 
value
Description 
35220  ACCEL_REDUC
TION_SPEED_ 
POINT 
-  X,Z 1 ... 0
Speed for reduced 
acceleration:  
max. speed * percent, 
values valid from 0.8 ... 0.2.
35230  ACCEL_ 
REDUCTION_ 
FACTOR 
-  X,Z 0 ... 1
Factor of reduced 
acceleration:  
max. acceleration * 
percent, values valid from 
0.4 ... 0.95. 
32300  MAX_AX_ACCEL m/s
2
X,Z 1 
The max. axis acceleration 
(default value)