Abstract
In recent years, the reduction of TCO (Total Cost of Ownership) from system architecture to start-up, operation and maintenance has risen rapidly as demands for FA (Factory Automation) market. On the other hand, due to the complexity or combination of machines and devices, or the advancement for the high-speed and high-accuracy demands, it has come to be connected with a network between a controller and amplifier. However, the conventional servo network also had various problems in the point of TCO reduction.
The servo network proposed in this paper allowed us to obtain the situation of the position and speed of the amplifier on the other side in the synchronous control through the communication between the amplifiers conventionally unattainable. Compared with the conventional system, high-speed and high-accuracy operation can be realized with the new synchronous compensation control which utilized the data obtained between amplifiers, and the improvement in operation productivity was able to be verified with an actual machine. Conventionally, it was composed of plural electrical signals, however, the new network realizes the optical communication only for a pair by a circuit technology and it was also proved to be effective for high productivity in setup and maintenance on the market performance.
