Robot system

A robot system in which an operator and a robot exist together to work in a same work space, the robot system comprising:

• a robot including a robot arm including a plurality of links coupled to each other via joints;
• a control section which controls an operation of the robot arm;
• and
• a collision stop section which detects that the robot arm has collided against an object and stops the robot arm,
• wherein the control section is configured to set a high-speed operation region and a low-speed operation region for the robot arm, the low-speed operation region being closer than the high-speed operation region to the operator,
• wherein the control section is configured to operate the robot arm at a speed that is equal to or lower than a first maximum speed in the high-speed operation region, and operate the robot arm at a speed that is equal to or lower than a second maximum speed lower than the first maximum speed in the low-speed operation region, and
• wherein the collision stop section is configured to change a collision detection sensitivity between the high-speed operation region and the low-speed operation region so that the collision detection sensitivity in the high-speed operation region becomes lower than the collision detection sensitivity in the low-speed operation region.