Acceleration Without Jerk Limitation (Brisk/Briska) (Channel-/Axis-Specific); General Information - Siemens SINUMERIK 828D Function Manual

B2: Acceleration
4.2 Functions
4.2.2

Acceleration without jerk limitation (BRISK/BRISKA) (channel-/axis-specific)

4.2.2.1

General Information

General Information
In the case of acceleration without jerk limitation (jerk = infinite) the maximum value is applied for acceleration
immediately. As regards acceleration with jerk limitation, it differs in the following respects:
• Advantages
Shorter processing times with the same maximum values for velocity and acceleration.
• Disadvantages
Increased load on the machine's mechanical components and risk of inducing high-frequency and difficult-to-
control mechanical vibrations.
Acceleration profile
a : Maximum acceleration value
max
v : Maximum velocity value
max
t: Time
Figure 4-1 Velocity and acceleration schematic for stepped acceleration profile
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Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions