Is it true that an electric motor drive allows only digital signals as inputs?

An electric motor drive does not exclusively require digital signals as inputs; it is capable of accepting both analog and digital signals. This flexibility allows for a variety of control options depending on the specific application and the design of the motor drive. For instance, analog signals such as voltage or current can be used for speed control, while digital signals might be utilized for more complex commands and feedback systems.

The diversity of input types means that the choice between using digital or analog signals depends largely on the requirements of the specific system and the capabilities of the drive being used. Many modern drives can interpret digital commands for precise control but can also process analog inputs for more traditional setups. This multifunctionality is key in various engineering applications where motor control is required.