A servo system (400, 500, 501, 502, 600, 601) comprising: first and second motors (30, 30a); first and second servo drivers (2, 2a) configured to drive the first and second motors (30, 30a), respectively; first and second sensors (61, 61a, 62, 62a, 63, 63a, 64, 64a) allocated to the first and second servo drivers (2, 2a), respectively, and configured to detect objects driven by the respective motors (30, 30a) and output detected signals; a first encoder configured to transmit to the first servo driver a feedback signal indicating an operation of the first motor, receive via a sensor cable the detected signal from the first sensor (61, 62, 63, 64) or the second sensor (61a, 62a, 63a, 64a), and transmit the detected signal to the first servo driver; and a second encoder configured to transmit to the second servo driver a feedback signal indicating an operation of the second motor, receive via a sensor cable the detected signal from the first sensor (61, 62, 63, 64) or the second sensor (61a, 62a, 63a, 64a), and transmit the detected signal to the second servo driver, wherein when each of the first and second servo drivers (2, 2a) receives a detected signal from the sensor (61, 61a, 62, 62a, 63, 63a, 64, 64a) allocated to the servo driver (2, 2a) via the corresponding encoder (30, 31), the servo driver (2, 2a) is configured to process the detected signal, and when each of the first and second servo drivers (2, 2a) receives a detected signal from the sensor (61, 61a, 62, 62a, 63, 63a, 64, 64a) allocated to a servo driver (2, 2a) different from the servo driver (2, 2a) via the corresponding encoder (31, 31a), the servo driver (2, 2a) is configured to transfer the detected signal to the different servo driver (2, 2a). first and second motors (30, 30a); first and second servo drivers (2, 2a) configured to drive the first and second motors (30, 30a), respectively; first and second sensors (61, 61a, 62, 62a, 63, 63a, 64, 64a) allocated to the first and second servo drivers (2, 2a), respectively, and configured to detect objects driven by the respective motors (30, 30a) and output detected signals; a first encoder configured to transmit to the first servo driver a feedback signal indicating an operation of the first motor, receive via a sensor cable the detected signal from the first sensor (61, 62, 63, 64) or the second sensor (61a, 62a, 63a, 64a), and transmit the detected signal to the first servo driver; and a second encoder configured to transmit to the second servo driver a feedback signal indicating an operation of the second motor, receive via a sensor cable the detected signal from the first sensor (61, 62, 63, 64) or the second sensor (61a, 62a, 63a, 64a), and transmit the detected signal to the second servo driver, wherein when each of the first and second servo drivers (2, 2a) receives a detected signal from the sensor (61, 61a, 62, 62a, 63, 63a, 64, 64a) allocated to the servo driver (2, 2a) via the corresponding encoder (30, 31), the servo driver (2, 2a) is configured to process the detected signal, and when each of the first and second servo drivers (2, 2a) receives a detected signal from the sensor (61, 61a, 62, 62a, 63, 63a, 64, 64a) allocated to a servo driver (2, 2a) different from the servo driver (2, 2a) via the corresponding encoder (31, 31a), the servo driver (2, 2a) is configured to transfer the detected signal to the different servo driver (2, 2a).