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F39-TGR-CVL-B-2-R Datasheet(PDF) 28 Page - Omron Electronics LLC |
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F39-TGR-CVL-B-2-R Datasheet(HTML) 28 Page - Omron Electronics LLC |
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28 / 98 page  10 Fixed Blanking Section 5-1 The effect of this tolerance also allows the number of blocked beams to vary ±1. For example, a Fixed Blanked area of 8 blanked beams is allowed to increase to 9 beams or decrease to 7 beams and the light curtain will remain in MACHINE RUN. There is an exception when there is only one clear beam separating Fixed Blanked areas. For only this case, there is no positional tolerance allowed on that side of the clear beam for the object closest to the entry endcap so that clear beam can only be used by the object further away from the entry end- cap. See the following table: The minimum number of beams in a Fixed Blanking area is one. If only one beam is blanked, the number of blocked beams has a size tolerance of +1/-0 meaning the number of blocked beams can increase to two but the area can- not be completely eliminated. The Fixed Blanking pattern must not prevent the light curtain from synchroniz- ing. This means that the size of the blanked object can not exceed certain lim- its as long as synchronization is maintained. Fixed Blanking is allowed during all modes of operation (automatic start, start and start/restart interlock). No Fixed Blanking Fixed Blanking Enabled Fixed Blanking Enabled Fixed Blanking Enabled Fixed Blanking Enabled Fixed Blanking Enabled MACHINE STOP MACHINE RUN MACHINE RUN MACHINE RUN MACHINE STOP MACHINE STOP Clear Optical Channel Blocked Optical Chan- nel Optical Channel Selected by Fixed Blanking Opposite to entry endcap end Fixed blanking enabled Fixed blanking enabled Fixed blanking enabled MACHINE RUN MACHINE RUN MACHINE STOP Entry endcap end |
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