B2: Acceleration
4.2 Functions
Basic Functions
218 Function Manual, 09/2011, 6FC5397-0BP40-2BA0
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
Figure 4-1 Velocity and acceleration schematic for stepped acceleration profile
a
max
: Maximum acceleration value
v
max
: Maximum velocity value
t: Time
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