Shenzhen Elephant Robotics Technology Co., Ltd.
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Medical and life-critical applications.
May cause an explosion in the environment.
Used directly without risk assessment.
Insufficient use of safety function levels.
Inconsistent use of robot performance parameters.
1.7 Risk assessment guidance
Risk assessment is the whole process including risk analysis and risk
assessment. National laws require risk assessment. It is recommended that
integrators apply ISO 12000 and ISO 10218-2 for risk assessment of robots.
The risk analysis mainly includes:
Determination of various limitations of the robot, including usage
restrictions, space restrictions, and the like.
Hazard identification, in addition to some of the hazard identification
items listed above, users also need to carry out hazard identification
according to actual use. For example, human-machine interactions
during the life of the machine, possible states of the machine,
unintended operator conditioning behaviors, or misuses that the
machine can reasonably foresee.
Risk estimation, analysis of risk factors (such as severity of injury,
probability of injury, etc.), estimation of exposed personnel, protective
measures, etc.
After completing the risk analysis, a risk assessment should be conducted to
determine if a risk reduction is required.
1.8 Robot stop function
Each robot should have a protective stop function and a separate emergency
stop function. This section describes two ways to stop the robot:
If you want to stop the robot in an emergency, immediately press the
emergency stop switch.
When the force generated by the collision of the robot with the person
or object is greater than the set threshold, the robot detects the force
generated by the collision and stops or moves to a certain position
(collision return).
1.8.1 Emergency stop
An emergency stop will cut off the drive source of the robot drive. At the
same time, the hold-type brake will stop the inertial motion of the robot, the
robot will stop all movements, and the running program will be stopped.
Do not press the emergency stop switch at will during normal operation. If
the emergency stop switch is pressed during the action, the trajectory of the
