The Emerson ES2403 is a dedicated elevator drive from the Unidrive ES series, manufactured by Control Techniques (part of Emerson). This high-performance vector control drive is specifically engineered for elevator applications, combining the superior performance platform of the UNIDRIVE SP with the specialized elevator control features of the TD3100 . It supports both geared and gearless elevator systems, and is capable of driving asynchronous motors in closed-loop or open-loop vector mode, as well as permanent magnet synchronous motors (PMSM) in servo mode