There is no question to the efficiency and efficacy of a variable speed drive in motion control precision. However, success needs the correct choice of both motor and the drive. Variable speed drive or variable frequency drive is designed and configured for certain control schemes in mind. So, you have to really work closely with the vendor to make sure that the drive you pick matches the motor and can deliver as needed for the specific application. This becomes even more crucial when operating at low speeds when choosing inverter-duty motors as the best option because the induction motor is usually cooled by fans coupled to the motor shaft.
Moreover, there is a corresponding speed and position capabilities of a variable speed drive at a certain amount of complexity. In effect, users have the tendency of underestimating what is needed to install and commission fees axes. You have to keep in mind that it is not as easy as connecting a motor to a three-phase output in the speed drive and a quick start command and a speed. It’s not as simple as that. The user needs to have the encoder and the right option card on the drive to communicate to the encoder, ensuring that the connection is proper.
Once everything is in good order, using a variable speed drive brings great advantages. For instance, the use of VSDs in process control applications enable the motor speed to the required tasks. It can also compensate for the changes in the variables of the process flow. Generally, VSDs enhance process operations involving flow control by providing soft-start capacities. This reduces the possible electrical stresses and line voltage sags which are primarily caused by full startups. This scenario is especially true when driving high-inertia loads. If you think your application needs this technology, just get in touch with us today to learn more about how we can assist you to find the best solution.
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