Parameterization - Siemens SINUMERIK 840D sl Function Manual

①
②
③
④
v :
red
v
max
Nx
Figure 5-12
5.2.19.4

Parameterization

The knee-shaped acceleration characteristics can be activated specific to the machine axis
via the machine data:
MD35240 $MA_ACCEL_TYPE_DRIVE = TRUE
The knee-shaped acceleration characteristic curve is parameterized for specific axes using
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)
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Normal range ⇒ a = a
max
Reducing range ⇒ a < a
max
Constant travel range ⇒ a = 0 m/s
Brake application point
Creep velocity
Maximum velocity
Traversing block with block number Nx
Deceleration with LookAhead
2
B2: Acceleration
5.2 Functions
279