FM-3 Programming Module Reference Manual
selects three digits allowing resolution of 0.001 Inches on all distance variables. Use the spinner window Up/down buttons.
Distance Units Scaling – Enter the number of User Units the motor/load travels for each revolution of the motor. You must enter the numerator and the denominator for this scaling factor, but for this example, the denominator (bottom portion of the ratio) is at 1.
Position View
The example wishes to limit the Following Error to 0.25 Inches or one motor revolution, and the Software Travel Limits of +20 and 0 Inches.
To setup following error limit and software travel limits, fill out the following parameters in the Limits Group:
Enable Following Error – Enable this checkbox.
Following Error Limit – The example uses a limit of 0.25 Inches.
Enable Software Travel Limits – Enable this checkbox.
Software Travel Limit + and - - If the position feedback ever exceeds these values when traveling in a positive or negative direction, the motor will come to a stop at the Travel Limit Decel rate defined on the Ramps view
Tuning View
This example application has an inertia mismatch of 3.5:1 and has been entered as seen in Figure 87.
Figure 87: Tuning View
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