Product Description:

The FC-202N250T7134GH273 is a variable-frequency drive manufactured by Danfoss for the VLT FC 202 AQUA Drives series. It modulates the speed of three-phase induction motors in pumping, filtration, and aeration equipment so that flow or pressure matches real-time demand. By integrating analog references and digital status lines with PLCs, the unit helps water-handling systems reduce energy consumption, lessen mechanical stress, and maintain process setpoints. Its enclosure shares physical dimensions with other drives in the platform, allowing a straightforward retrofit inside existing pump panels.

With a rated output of 250 kW, the drive supplies enough active power for large centrifugal pumps while remaining compatible with three-phase power grids commonly used in industrial plants. A displacement power factor greater than 0.98 indicates that the source current is almost entirely active, while the true power factor of at least 0.9 accounts for harmonic content after inversion and remains within utility efficiency targets. The control electronics tolerate field signals up to 28 V DC on the digital inputs, protecting the circuitry when 24 V logic is used. One analog output is available for transmitting process variables to higher-level controllers without additional signal conditioners.

During rapid stops, excess kinetic energy is routed to an external braking network. The unit supports up to 20 kW of resistor dissipation and recommends elements around 4.0 Ω, with a safe lower limit of 3.4 Ω. The dedicated brake terminal accepts copper conductors up to 35 mm², ensuring low voltage drop at high deceleration currents. An internal thermal relay opens at 71 A to prevent prolonged overloads that could damage motor windings. Feedback to SCADA systems is available through the analog channel’s 8-bit resolution, which operates across the stated 500 Ω load so speed or flow can be monitored in real time.