EFORT Intelligent Equipment Co., Ltd
2
The robot is equipped with self-diagnostic and other abnormality detection function, so it can
stop safely in case of abnormality. However, accidents may still occur sometimes.
Reasons, such as ignorance of safety operation procedures, no awareness of robot’s sudden
movement, lead to above accidents. In other words, accidents are caused by insecure human-made
actions, such as temporary ignorance, failure to comply with the prescribed steps.
Operators have little time to perform emergency stops, evacuate, or other actions to avoid
serious accidents in emergency situations, as shown below.
1) Low-speed movement suddenly changes to high-speed movement.
2) Other operators performed the operation.
3) Abnormality and program errors caused by peripheral equipment start different programs.
4) Noise, fault, and other defects lead to abnormal movements.
5) Misoperation.
6) High-speed movement is performed instead of automatic low-speed movement.
7) The work pieces transported by the robot fall and scatter.
8) Workpieces in clamping or interlocking state suddenly lose control.
9) Neighboring robots or robots at the back perform action.
The above are some of the typical examples excluding many other emergency situations. In
most cases, the robot making sudden movements cannot be stopped and the operator cannot
evacuate. Therefore, optimal countermeasures should be implemented to avoid such accidents.
Common accidents are listed below:
1
、
Automatic operation is being performed without confirming whether anyone is
within the robot
’
s motion range.
2
、
The robot makes sudden movements when the operator is within the motion
range in automatic mode.
3
、
Attention is not paid to other robots but the one in the front.
Approach the robot cautiously.
Press emergency stop button or cut off power, so the robot cannot make movement
when it
’
s not operation.
A supervisor (the third person) should be assigned to monitor the safety and be able
to immediately press the emergency stop button during robot
’
s movement.
