| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | Using the Switch Sensor | | LIA 21 | | |
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| | | Positive counting direction | | |
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| | | Start of measuring length ML | | |
| | | End of measuring length ML | | |
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| | | Measuring length ML | | |
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| | a | | | |
| | | □ | | | |
| | | -S1 | | |
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| | | (4) | | |
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| | | Detection of the limit position | | |
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| | | ML +1mm | | |
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| | | ML - 4 mm (maximum possible distance between two switch positions) | | |
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| | | Switch position in minimum distance to the start of measuring lengt ML | | |
| | | Switch foil (glued to the guide tape) | | |
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| | | r Switch position in maximum distance to the start of measuring length ML | | |
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| | | Guide tape | | |
| | | 5 | | |
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| | | Reference track Counting track | | Scale tape | | |
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| | | im | | |
| | | i | | |
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| | | Detection of the scanning head position within the measuring range | | |
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| | | X = measuring range + 3mm | | |
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| | | Switch position; switch signal after a travel of (X-3) mm ± 0.7 mm | | |
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| | | lilt | | |
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| | | Selection of the reference mark (choosing one reference mark from n marks) | | |
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| | | 16±2 | | |
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| | | 10±2 | | |
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| | | :?didiiuì;:: | | |
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| | | Reference mark to be selected | | |
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| | | 5 | | |
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