| 摘要 |
PROBLEM TO BE SOLVED: To provide a multiple system servo actuator controller capable of preventing power waste due to any antagonization between systems and improving responsiveness. SOLUTION: This multiple system servo actuator controller is constituted of a control circuit 20 for controlling the first system of an electric servo actuator 1, a control circuit 30 for controlling the second system of the electric servo actuator 1, and a serial bus 40 for operating data communication between the control circuits 20 and 30. The control circuits 20 and 30 are respectively constituted of CPUs 21 and 31, memories 23 and 33, input and output circuits 24 and 34, driver circuits 25 and 35 for outputting motor driving currents to motor coils 9a and 9b of a monitor 10, communication I/F circuits 26 and 36 for operating data communication with a host controller 41, and inter-system communication I/F circuits 27 and 37 for operating data communication with the other system. When the change of the operation output signal is small, a servo control arithmetic operation is performed by using the mean value of the both systems, and when the change of the operation output signal is large, the servo control arithmetic operation is performed only by its own system.
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