Siemens sinumerik 840D sl Function Manual page 344

Detailed description
2.6 Dynamic response of following axis
2.6 Dynamic response of following axis
2.6.1 Parameterized dynamic limits
The dynamics of the following axis is limited by the following MD values:
MD32000 $MA_MAX_AX_VELO (maximum axis velocity)
MD32300 $MA_MAX_AX_ACCEL (Maximum axis acceleration)
2.6.2 Programmed dynamic limits
2.6.2.1 Programming (VELOLIMA, ACCLIMA)
Reducing or increasing dynamics limits
The dynamic limits of the following axis (FA) specified through MD32000 and MD32300 can
be reduced or increased from the part program:
Command
VELOLIMA[FA]
ACCLIMA[FA]
The values specified during the programming of VELOLIMA[FA] and ACCLIMA[FA]are
process values. They define the proportion with which the paramterized dynamic limits
(MD32000 and MD32300) are to be considered:
Range of values
1 ≤ value < 100
100 ≤ value < 200
The dynamic limits for the velocity and acceleration of the following axis are then calculated
as follows:
Maximum axis velocity = MD32000 $MA_MAX_AX_VELO * VELOLIMA[FA]
Maximum axis acceleration = MD32300 $MA_MAX_AX_ACCEL * ACCLIMA[FA]
Note
The reduction / increase is effected on the overall dynamics of the axis, i.e., on the sum of
the axis component from overlay and coupling.
124
Description
Reducing or increasing the maximum Axis velocity
Reducing or increasing the maximum Axis acceleration
Description
effects a Reduction in the dynamic limit
effects an increase in the dynamic limit
Special functions: Axis Couplings and ESR (M3)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0