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Lock tolerance, Backlash – Rockwell Automation GMLC Reference Manual User Manual

Page 112

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Publication GMLC-5.2 - November 1999

Defining Position

75

Parabolic

Jog

Select the default motion profile for servo axis motion commanded by a
Jog Axis block:

Trapezoidal

S-Curve

Parabolic

Lock Tolerance

Type a value, in position units, representing the maximum servo axis
position error the controller will tolerate when indicating axis locked
status.

Note: The controller interprets this value as a ± measurement around

the axis position.

Backlash

Backlash is the relative movement between interacting mechanical parts
due to looseness. Commander provides the means to set a compensation
type and offset value to counter any looseness in your servo system.

Compensation

If your servo system contains slop (i.e. inaccuracy between commanded
and actual position due to loose mechanical connections), you can
compensate for this slop by selecting a backlash compensation type. the
available types are:

Positive Approach

Negative Approach

Load Reversal