Functions
2.18 Kneeshaped acceleration characteristic curve
Basic logic functions: Acceleration (B2)
48 Function Manual, 11/2006, 6FC5397-0BP10-2BA0

Y
UHG
Y
PD[
111111
Y
W
Figure 2-11 Deceleration with LookAhead
1: Brake application point
2: Torque decrease zone
3: Maximum torque zone
v
red
: Creep velocity
v
max
: Maximum velocity
Nxy: Part program block with block number Nxy
2.18.2 Activation
2.18.2.1 Parameterization
Function
The knee-shaped acceleration characteristic curve is parameterized for specific axes using
the following machine data:
MD32000 $MA_MAX_AX_VELO (maximum axis velocity)
MD35220 $MA_ACCEL_REDUCTION_SPEED_POINT
(speed for reduced acceleration)
MD35230 $MA_ACCEL_REDUCTION_FACTOR (reduced acceleration)
MD32300 $MA_MAX_AX_ACCEL (Maximum axis acceleration)
MD35242 $MA_ACCEL_REDUCTION_TYPE
(type of acceleration reduction: 0 = constant, 1 = hyperbolic, 2 = linear)
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