MIR 1350 - Page 98

9. Navigation and guidance system
MiR1350 User Guide (en) 05/2022 - v.1.2 ©Copyright 2021-2022: Mobile Industrial Robots A/S. 98
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The proximity sensors are used for navigation, not safety. The robot does not
enter Protective stop if the sensors detect an object. If the robot cannot
navigate around an obstacle detected by the sensors, the robot reports an
error that it cannot find a free path.
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The proximity sensors mitigate the risk of collision but cannot fully prevent it in
all scenarios.
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111. 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.
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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:
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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.
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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.