Smooth operation, precise control and powerful functionality EI-Super N is a general-purpose inverter with flux vector control. It directly controls the current or torque in an AC induction motor. EI-Super N is suitable for a wide variety of applications. EI-Super N provides smooth start-up at low speeds (1% of rated speed) and precise operation. Its auto-tuning function enables high performance tuning of all induction motors. EI-Super N combines four control methods: open loop vector flux vector V/F control with PG feedback V/F control From precision machinery to multiple motor drives, EI-Super N proves to be the ultimate drive for all applications. Features 32bit DSP microprocessor configuration magnetic field oriented flux vector control auto-tune ability available for speed-type servo controller while PG feedback added RS-232/RS-485 serial communication port RS232/TCP-IP interface card capacities from 1HP - 400 HP optional DC reactor available (for reducing harmonic interference from the power supply) multi-language large screen LCD displays the drive status in six languages and a parameter copy mode function. English Chinese Russian German French Spanish Any type of machine starts smoothly at low speeds EI-Super N features full-scale flux vector current control that directly controls motor torque based on present control theory utilising a magnetic flux observer and neuro-control. It features full torque control even at zero speed when PG option is added. Precise control over a wide speed range EI-Super N features highly precise operation throughout the motor's entire speed range, even under fluctuating load conditions. Four controls in one device; the ultimate device for all applications Four control methods are included: Standard V/F control V/F control with PG feedback Sensorless flux vector control Flux vector current control with PG feedback Simply select the parameters, EI-Super N can be applied to a wide range of applications from servo-like precision machinery to multiple motor drives. Factory presets default to sensorless vector control type, but it can be configured to the V/F control mode for applications requiring multiple motors on one device, or set to flux vector current control mode (with PG) for hughly precise vector operation. (PG-B interface card is optional) Note: at low speed, high torque and continuous operation, a forced cooling special motor must be used Applications Booster Oil Pumping Station Punch Press Tram Line in Mining Operation Surface Winder Application requirements; V/Hz (2%), sensorless vector (0.1%), or flux vector control (0.01% with motor-mounted encoder and drive-mounted PG-X2 card required).