The problem of over-current in a motor or actuator used in a gripper mechanism occurs when a gripper meets the “end of
travel” or has reached the mechanical limit meant for the mechanism. For example, when a DC motor has already gripped
an object tightly, the motor is considered to have reached the end of travel. However, if signal and voltage is continuously
supplied to the DC motor, the supply current will rise sharply because of the increasing amount of torque required. This will
risk the possibilities of damaging the components of the system such as the motor, the driver circuitries governing the motor
movement, or even the object that is grasped by the gripper. By extracting the current values in the power lines, the damage
to the system or the object can be avoided by programming an action in respond to a certain current threshold value.