MIR 250 Hook - Page 113

10. Navigation and guidance system
MiR250 Hook User Guide (en) 01/2023 - v.1.2 ©Copyright 2021-2023: Mobile Industrial Robots A/S. 113
CAUTION
Proximity sensors cannot be used as a means for safety related risk reduction, for
example, detecting feet. They cannot be used as an alternative to the Personnel
detection safety function—see "Personnel detection" on page123. The robot may
collide with and cause injury to personnel if you rely on the proximity sensors alone
to detect personnel.
• Do not modify the safety laser scanner settings with the expectation that the
proximity sensors will prevent collision with personnel.
• Do not include the proximity sensors as a risk reduction means in your risk
assessment of the robot.
Besides preventing collision with low objects placed close to the robot upon movement after
standstill, the proximity sensors can also improve driving performance in the following situations:
• When the robot is docking, reversing, turning sharply, or pivoting at reduced speeds, the robot
is more likely to detect and avoid low objects. The slower the robot drives, the more likely the
proximity sensors will detect objects outside the scanners' and cameras' fields of view.
• If the robot is dragging an obstacle below the scanner's plane of view, the proximity sensors
will detect it, and the robot will stop and report that the path is blocked.
CAUTION
Because proximity sensor data is not intended to be used while the robot is driving,
there is a risk that the robot may still collide with low objects when reversing,
turning, or pivoting. Collision with objects may damage the robot or other assets or
lead to interruption of operation.
• Inform relevant personnel that the robot cannot detect lowered forklift forks while
operating, and that personnel must not park forklifts in the robot's operating area.
• Keep the operating area of the robot clear of unnecessary objects.
The proximity sensors have the following limitations:
• They do not have a long range and are mainly used to detect obstacles placed near the robot
while it is standing still and begins driving.
• They only detect low obstacles around the corners of the robot.