iRobot DISCOVERY 400 - Manual (Page 15)

For more detailed information, visit: www.irobot.com 15
Virtual Wall ®
(optional accessory for select 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.
Slim Virtual Wall (models 400-420)
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: Point the iRobot logo towards the opening you would like to block.
TIP: For best performance, place the Virtual Wall on the outside of the
doorway you wish to block.
TIP: Scheduling Virtual Walls (when programmed) will turn on a few minutes
before Roomba.