Product Description:

The FC-202P5K5T6134G2649 variable frequency drive is manufactured by Danfoss within the VLT FC 202 AQUA Drives series. Intended for centrifugal pumps, blowers, and filtration fans in municipal and industrial water treatment, it pairs with three-phase induction motors to regulate flow and pressure while reducing energy use. Its internal series identifier, 202, corresponds to the software and I/O architecture used across the platform, supporting integration into distributed control systems.

The inverter supplies a continuous output of 5.5 kW, equal to 7.5 HP, and its power module is rated for 9.0 kVA at 550 V, allowing stable power delivery during periods of increased demand. A full-load efficiency of 0.97 limits self-heating, while residual losses are dispersed by panel airflow. An open-loop speed range of 1:100 allows the motor to transition from slow dosing to rapid wash cycles without a feedback encoder. Control calculations are completed in 2 ms or less, providing a prompt response to setpoint changes, and speed remains within ±8 rpm across the operating range. The analog output provides 8-bit resolution, while a 10.5 V reference can supply 25 mA to field transducers on remote panels. The three-phase power input maintains balanced loading across the plant mains.

The drive draws a maximum current of 8.6 A and is protected upstream by a 32 A prefuse. Field cables with conductors up to 4 mm² fit the terminal blocks, and the digital outputs can sink 40 mA at switching frequencies up to 32 kHz for relay or counter functions. The drive generates only 195 W of heat at rated load, reducing the cooling demand inside the enclosure. Frequency commands are resolved to ±0.003 Hz, and open-loop accuracy is supported by the 32-bit internal processor. Additional diagnostics include maximum digital output current alarms and power-loss monitoring, which help maintain predictable pump behavior during flow regulation.