Curve Tool: Curve Limits

Each curve has a number of limitations. Some limit values can be changed, while others cannot. Most of these limitations can be temporarily ignored by disabling the Enforce Limits option as described in Enforcing Limits. Each limit is described below.

The status bar has three icons related to limits. See Status Bar for a description of these icons.

Note: The curve cannot be downloaded to the RMC if any of the limits have been violated, even if limits are not being enforced.

Curve Limits

Time (or master position) Between Points
A point cannot be closer than ten (10) time units or farther than 65,535 time units from an adjacent point. These limits are fixed. Placing points closer than 10 time units is the one limitation that cannot be overridden by disabling the Enforce Limits option.

Position
The curve cannot extend beyond the axis Extend and Retract Limits. These limits cannot be changed from within the Curve Tool, but they can be changed from the main RMCWin window, even while the Curve Tool is open. These limits can be ignored while editing a curve by disabling the Enforce Limits option.
The Extend and Retract Limits for the active axis are indicated in the Graph view by showing the area beyond the limits with a yellow background.

Velocity
Each curve has a maximum speed assigned to it. This maximum speed can be changed from the General tab of the Options dialog box in the Curve Tool as described below. The maximum speed must be between 0 to 65,535. The default is 65,535 speed units. See Units of Measurement for a definition of speed units. This limit can be ignored while editing a curve by disabling the Enforce Limits option.

If the velocity plot is visible, then the positive and negative limits will be drawn as dotted lines in the same color as the velocity plot.

Acceleration
Each curve has a maximum acceleration assigned to it. This maximum acceleration can be changed from the General tab of the Options dialog box in the Curve Tool as described below. The maximum acceleration must be between 0 to 400,000. The default is 400,000 acceleration units. See Units of Measurement for a definition of acceleration units. This limit can be ignored while editing a curve by disabling the Enforce Limits option.
If the acceleration plot is visible, then the positive and negative limits will be drawn as dotted lines in the same color as the acceleration plot.

To change the speed and/or acceleration limits of a curve:

On the Tools menu, click Options.
Click the General tab.
Find the text boxes on the row of the axis you want to change under the columns labeled Speed and Accel Limits.
Type the values you want using the units described above.
Click OK.