Siemens SINUMERIK 840D sl Function Manual page 266
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2.18 Kneeshaped acceleration characteristic curve
Figure 2-11
1:
2:
3:
v
red
v
max
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)
48
Deceleration with LookAhead
Brake application point
Torque decrease zone
Maximum torque zone
:
Creep velocity
:
Maximum velocity
Part program block with block number Nxy
Basic logic functions: Acceleration (B2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
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