DEFINE LOAD CURVE

This function allows user to define, read in, or modify either a motion or force curve. As shown in figure 5.1.4, there are two toggles switch for CURVE TYPE. A motion curve allows the user to control the tool movement via displacement, while a force curve applies a given force to a tool. If motion and force curves are both defined, the motion curve will override the force curve. However, if both curves are defined, by entering a death time for the motion curve, the force curve will take effect.

  

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Shows a graph of the current curve, and also provides many options for viewing the graph. See Section 9.11 for more details.

This function is used to assign a travel curve to a tool from a list of defined load curves, see Figure 5.1.5 Select a curve name and click OK to assign the curve to the current tool.

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Reads a curve from another location. See figure 5.1.6 below.

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  • AUTO

This function is used to automatically generate a curve according to the input values. If Motion Curve is checked in the figure 5.1.4, Motion Curve window is as figure 5.1.7.

1. Select CURVE TYPE, there are 2 types of curve. "Velocity is the curve of Time VS Velocity and "Displacement" is the curve of Time VS Displacement.

2. Select a type in the CURVE SHAPE window There are 3 types of load curve that can be generated automatically by AUTO LOAD CURVE:

   (Recommended)

with the maximum velocity held constant.

3. Input values in the fields of VELOCITY, DISTANCE, and BEGIN TIME.

4. If the phase of the curve is more than one, the user can select NO and input types and values for a second travel.

5. Select YES and a curve is created. A dialog window appears showing the motion curve, see Section LOAD CURVE.

UTILITIES/LOADCURVE/SHOW LOAD CURVE. Select NO and AUTO CURVE window appears again, the begin time is the end time of the first travel.

If Force Curve is checked on figure 5.1.4, Force Curve window is displayed as figure 5.1.8.

1. Input values in the fields of BEGIN, FORCE, the END TIME is the end time of all motion curves as default.

2. Select OK and a curve is created. A dialog window appears showing the force curve, see Section SHOW LOAD CURVE UTILITIES/LOAD CURVES/SHOW LOAD CURVE.

     

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  • REMOVE CURVE

This function removes the applied load curve that defines the motion. A warning dialog window appears, see figure 5.1.9.

Select YES to accept or NO to reject.

  • MODIFY

This function is used to make alterations to the current curve. See section LOAD CURVE for details.

  • MANUAL

This function is used to create a curve by point definition, see Figure 5.1.10.

1. Select VELOCITY/TIME or DISPLACEMENT/TIME.

2. Type a pair of numbers in the field below TIME and VALUE.

3. Select ADD POINT and then enter the next points.

4. Select OK to end curve definition.

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