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A servomotor is a motor that makes it possible to control the exact position of the motor shaft as well as the rotational speed and/or acceleration. Corresponding sensors and control technologies are used for this purpose. In the past, servomotors were auxiliary drives designed for use in machine tools. Incidentally, the servomotor owes its name to the Latin word "servus", which means "servant". Servomotors consist of either an asynchronous motora synchronous motor or a DC motor. The difference between the motors is therefore not in the drive principle itself, but solely in their control options.
Servomotors can be divided into synchronous and asynchronous servomotors can be differentiated. However, it is always a drive that is operated in electronics position, speed or torque control - or a combination of these. Very high requirements are placed on the dynamics, setting ranges and/or precision of the movement. Servomotors are usually used in connection with automation and control solutionsin packaging machines, for example.
Asynchronous servomotors are suitable for use in applications where high external inertias are moved must be moved in systems and machines and safely controlled in closed-loop control. Here SEW-EURODRIVE offers in the DRL motoring operation series.. motor series offers corresponding drive solutions.
Synchronous servomotors are drives in which the rotor is driven synchronously by the rotating field in the stator by means of applied permanent magnets. A synchronous motor has synchronous movement to the applied rotating field frequency.
This drive variant is connected to a frequency inverter which has a suitable controlled three-phase current is provided. SEW-EURODRIVE has various designs in its portfolio. The optimized servomotors of the CMP. series. are precise, dynamic and powerful, especially in confined spaces. Classic areas of application can be found in the food and beverage industry as well as in the construction, automotive, packaging and woodworking industries.
Synchronous servomotors from the CM3C series... are suitable for all automation, handling and traction applications with a correspondingly high load moment of inertia. They are designed for large loads with high dynamics and precision.
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