The difference between the servo motor controller and deceleration motor controller?

servo motor controller lh-zd: bar refers to obey, means controllable strong motor. Servo motor controller is equipped with encoder for speed sensor, servo motor controller is generally equipped with a dedicated servo drives. Servo motor controller has the branch of synchronous bar to drink and asynchronous servo, is the permanent magnet synchronous motor controller. Control principle is the use of modern space vector control principle of control, can control the speed and position control and torque control. Gear motor controller: motor with reducer. Even servo motor controller with reducer gear motor capacity can be called the controller. Servo motor gear motor controller and the controller is not the same classification. So there is no comparable