Servo motor controller performance what are the requirements?

servo motor controller system performance basic requirements: 1, high precision of displacement accuracy: refer to instruction pulse for machine table displacement and the instruction pulse by the servo system into the workbench's actual displacement degree of correspondence between 2, stability, good stability: refers to the servo system in the role of a given input or interference, can only after a short adjustment process, achieve the balance of new or restored to its original state. 3, positioning accuracy, high positioning accuracy, is refers to the amount of output can emersion input accuracy 4, good quick response 5, 6, good system reliability 7, wide speed range and high torque at low speed