iRobot 551 Vacuum Cleaner User Manual


 
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Virtual Wall
®
(optional accessory for selected models)
Virtual Walls create an invisible barrier
that Roomba will not cross. This invisible
barrier can be used to confine Roomba
to a particular room or area, and
prevent it from getting too close
to electrical or computer cords,
delicate objects on the floor, etc.
The Virtual Walls can be set to block an opening
up to seven feet long. Note that the width of the Virtual Wall’s
beam also increases as its length increases, creating a cone-shaped
area which Roomba cannot pass. The Virtual Wall also creates a halo of
protection around itself, preventing Roomba from getting too close.
Original Virtual Wall
The Virtual Wall requires 2 “D” batteries and
automatically shuts off after 135 minutes. If the
power light blinks green, the batteries will soon
need replacement. Use the slider bar to adjust
the length of the barrier. A higher range will drain
the battery faster.
TIP: For best performance, place the Virtual Wall on the outside of the
doorway you wish to block.
TIP: Point the iRobot logo towards the opening you would like to block.