Mobile Robot LD-250 Assembly Instructions, Rev. A
Page 37 of 77
4.3.2 Rear Sensor
An infrared time-of-flight (ToF) sensor array is mounted at the rear of the LD-250 for remote
sensing obstacles when traveling in reverse or when obstacles move close behind the LD-
250.
A User Bumper connector enables you to add your own payload structure bumpers. The LD-
250 Core's rear upper panel (in the payload bay) provides connections for front left, center,
and right sensors, and rear right, center, and left sensors. See: User Bumper on page 105
(LD-250 Platform User’s Guide, Rev-B).
IMPORTANT: The User Bumpers connector is not safety-rated. These user bumpers will act
to stop the robot, but they are not redundant signals and should not be relied on as part of
a PL=d rated safety system. These bumpers should be considered for protection of your
machinery.
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