RollSeal RS-500 Manuel d'installation Page 32

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Page 32 RS-500/600 Series Doors Part No 4801-5154 Rev 01-2015
20.1 Limit Switches
There are three limit switches located within the horizontal member mechanism. See Diagram 20A. These
switches are attached to levers that contact the curtain.
The Home Switch establishes the 'open' reference position of the door curtain. This creates the zero reference
position, from which the encoder counts the position of the door.
The Safety Switch is a fail-safe switch that stops the curtain in the unlikely event of malfunction of the home
switch.
The Leading Edge Switch is a switch that stops the curtain in the event of a doorway obstruction.
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