Siemens SINUMERIK 828D

B2: Acceleration
4.2 Functions
Basic Functions
250 Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Substitute characteristic curve with linear path sections
Limitation to this value is applied if the programmed path velocity is greater than that at which 15 % of the
maximum acceleration capacity is still available (v
15%a
). Consequently, 15 % of the maximum acceleration
capacity/motor torque always remains available, whatever the machining situation.
Figure 4-10 Substitute path characteristic curve: Linear path
a
ers
: Substitute characteristic curve constant acceleration
a
15%
: Minimal constant acceleration
a
15%
= 0.15 * (a
max
- a
red
) + a
red
v
ers
: Substitute characteristic curve velocity
v
prog
: Programmed velocity
v
15%a
: Velocity at a
15%
/RFNHG]RQH
Y
D
Y
SURJ
D

D
HUV
D
UHG
D
PD[
Y
UHG
Y
PD[
D
Y