Provided is a robot apparatus including actuators for driving joint shafts and measuring at least one of a joint angle and a joint angle speed of each of the joint shafts, and a central control part for controlling each of the actuators, wherein the central control part performs a periodic communication at predetermined control periods and the periodic communication includes transmitting a desired control value from the central control part to each of the actuators and transmitting a measured value from each of the actuators to the central control part, the central control part stops the periodic communication in response to an occurrence of an actuator that has failed to receive the measured value during a given period of time, and each of the actuators performs a safety stop in response to an event where the actuator has not received the desired control value during a given period of time.