Or a controller may have drive functionality within it, for example.Įither way, knowing what a drive functionally does (as well as having access to product specs) can help determine what is being referred to when any of these terms is used. A pulse of specific width has to be applied at specific intervals of time. The servo is sensitive to timing variations. Micro-controller A servo motor is driven by applying the voltage signal to it regular intervals. So a drive of today - in addition to performing standard drive functions - may also be generating the control signals. A power supply unit Miscellaneous Components A potentiometer Connectors, wires etc. The controller generates the control signals, which are then amplified by the drive and sent to the motor.Įven so, contemporary designs continue to integrate these older stand-alone components and functions into one unit. Kollmorgen AKD servo drives can supply continuous current of 3 to 48 A RMS. The possi- ble DC Power coupling of axes allows energy sharing and energy savings of up to 30. Strictly speaking, a servo controller does not supply the currents for the motor. Sigma-7 motor efficiency reduces heat generation by up to 20. This block diagram of a typical servo control system shows the traditional relationships between the drive, controller, and motor. That’s because traditionally a controller is where the control signals for the motor originate. This name is perhaps the most problematic. That brings us to the term servo controller. So labeling something a servo inverter really only refers to one of the electronic systems in a drive … even though engineers may use it interchangeably with the word “drive” to refer to the same thing. Drives contain inverters to generate the ac signals needed to drive a motor. Drive Sustainable Growth Use Energy Efficiently Buy Energy Smarter Optimize Enterprise Data Microgrid Services Energy-as-a-Service. Share Price Global (English) Item count in cart is 0 My Products. To understand this name for drives, we need to look at the electronic functions inside of a drive.Īn electronic inverter converts dc power to ac. Browse our products and documents for Lexium 05 & Motors - Servo drives and servo motors for machines from 0.4 to 6 kW. Hence, the reason a drive is sometimes referred to as a servo amplifier. So functionally speaking, signal amplification is what is going on inside of a servo drive. Amplification is needed because control signals are too low (in terms of current) to power the windings of a motor, which require higher current levels. Here’s what a drive does in a servo system: It basically takes an input signal from a controller and amplifies that signal which is then sent to the motor.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |