Abstract: A control system which is arranged adjacent to a robot mechanical unit and on which maintenance work can be easily carried out. The control system includes a first unit and a second unit. The first unit includes relatively low-maintenance components and the second unit includes relatively high-maintenance components. Further, the first unit and the second unit are connected such that they can be mechanically and electrically separated from each other with ease, thereby making it possible to effect replacement unit by unit.

Abstract: In a robot apparatus comprising a robot mechanical unit and a robot controller, the robot apparatus does not need a connecting cable for connecting the robot mechanical unit to the robot controller. The robot mechanical unit includes a connector for receiving a control signal and outputting a sensor signal, in addition to an arm and a drive unit. The robot controller includes a circuit for controlling the robot mechanical unit, a servo amplifier, and a connector capable of being directly coupled with the connector of the robot mechanical unit. Further, the robot controller is installed at a location adjacent to the robot mechanical unit and within a dead space of an operating area of the robot mechanical unit.