Influencing The Motion Control; Percentage Jerk Correction (Jerklim) - Siemens Sinumerik 840D sl Programming Manual

8.7

Influencing the motion control

8.7.1

Percentage jerk correction (JERKLIM)

Function
Using the NC command JERKLIM, the maximum jerk of an axis for path motion - set using
machine data - can be reduced or increased in critical program sections.
Precondition
The acceleration mode SOFT must be active.
Effectiveness
The function is effective:
• In the AUTOMATIC operating modes.
• Only on path axes.
Syntax
JERKLIM[<axis>]=<value>
Meaning
JERKLIM:
<axis>:
<value>:
Note
The behavior of JERKLIM at the end of the part program and channel reset is configured with
bit 0 in machine data MD32320 $MA_DYN_LIMIT_RESET_MASK:
• Bit 0 = 0:
The programmed value for JERKLIM is reset to 100% with channel reset/M30.
• Bit 0 = 1:
The programmed value for JERKLIM is retained beyond the channel reset/M30.
Job planning
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
Command for jerk correction
Machine axis whose jerk limit value is to be adapted.
Percentage correction value, referred to the configured maximum axis
jerk for path motion (MD32431 $MA_MAX_AX_JERK).
Range of values: 1 ... 200
Value 100 does not influence the jerk.
Path traversing behavior
8.7 Influencing the motion control
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