Product Description:

The FC-202N160T7134G7001 is an AC variable-frequency drive manufactured by Danfoss for the VLT FC 202 AQUA Drives series. This controller regulates motor speed in pumping and aeration equipment, allowing flow to track changes in process demand without relying on continuous full-speed operation. It serves as the power-conversion stage between the mains supply and an induction motor in water-treatment facilities, irrigation systems, and similar pumping applications. Its variable-speed control also allows connected equipment to respond to external process commands from plant control systems.

The drive supports a rated load of 160 kW and accepts input voltages ranging from 525 V AC to 690 V AC. It connects to a three-phase power bus and can provide up to 110% of the rated motor current during short overload conditions before output limiting begins. Input-voltage compensation accommodates fluctuations of ±10% from the nominal supply, helping the drive maintain stable motor torque when line voltage changes. The braking circuit accepts resistor values from a minimum of 4.2 Ω to a nominal value of 7.2 Ω. A resistance of 6.1 Ω is recommended for dynamic deceleration, balancing braking energy dissipation with the available thermal margin.

The analog interface provides a programmable 0/4–20 mA range for retransmitting motor speed or process variables to external plant controllers. Its accuracy is 0.8% of full scale, and the connected analog load must not exceed 500 Ω. Digital control signals enter through optically isolated terminals rated for 28 V DC, reducing electrical interaction between the drive and external logic circuits. The open-collector transistor output can deliver 40 mA, switch loads up to 1 kΩ, and generate pulse trains at frequencies up to 32 kHz for high-resolution feedback signals. A separate relay channel provides status signaling when greater electrical isolation is required, while current limiting protects the output stage against excessive load demand.