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8. Operating modes
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Festo P.BE-CMMP-CO-SW-EN 0708NH
Method 17: Reference travel to the negative limit switch
With this method, the drive first moves relatively quickly in a negative direction until it
reaches the negative limit switch. This is depicted in the diagram through the rising edge.
After that, the drive moves back slowly and searches for the exact position of the limit
switch. The zero position refers to the falling edge from the negative limit switch.
Fig. 8.7: Reference travel to the negative limit switch
Method 18: Reference travel to the positive limit switch
With this method, the drive first moves relatively quickly in a positive direction until it
reaches the positive limit switch. This is depicted in the diagram through the rising edge.
After that, the drive moves back slowly and searches for the exact position of the limit
switch. The zero position refers to the falling edge from the positive limit switch.
Fig. 8.8: Reference travel to the positive limit switch
Summary of Contents for CMMP Series
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