Motorized barrier operator system utilizing multiple photo-eye safety system and methods for installing and using the same
作者： James S Murray
DOI:
关键词: Installation 、 Eye safety 、 Operator system 、 Simulation 、 Engineering 、 Operator (computer programming)
摘要: A movable barrier operator system includes a motorized which moves between limit positions, and photo-electric safety connected to the operator. The monitors for obstructions at more than one height along barrier's path positions. This is done by installing supplemental work in conjunction with pre-existing
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