ABB is presenting robots that can respond to changing situations in mechanical work or test processes. For example, when testing grinding or cutting wheels, the robot adjusts its feed rate depending on the reaction forces. It reacts to changing conditions, such as harder material sections or larger cross-sections, in a similar way to a human in a manual application. The robots are equipped with the Force Control function package for this purpose. Conventionally controlled robots move their wrist or the driven tool attached to it at a predefined speed along the programmed path, regardless of unplanned resistance. This can lead to overloading of the tool drive, the tool or the workpiece, or even to the system crashing. With Force Control, a sensor between the wrist and the driven tool records the forces and torques in all coordinates. The time between determining the value and the reaction to it is a maximum of 4 ms. Force Control offers different 'feeling strategies': 'FC Pressure' or 'FC Speed-Change'. With FC Pressure, the control system keeps the machining force constant and changes the path as required. In this way, the tool follows the workpiece contour with constant force and speed. FC SpeedChange maintains both the programmed path and the force. If the resistance increases, the control system adjusts the speed. This prevents overloading of the tool, the workpiece and the fixture.