FC302-312 Danfoss
Wake Industrial LLC is not an authorized distributor of this product.
The Danfoss FC302-312 is part of the VLT FC 302 Automation Drives series and features a closed-loop speed accuracy of ±0.15 RPM with a closed-loop speed range of 1:1000. It includes one analog output with 12 bit resolution and two digital outputs operating at a frequency of 32 kHz. The drive offers a maximum altitude without derate of 1000 meters and supports cable lengths up to 300 meters when unshielded.
Internal Product Review
The FC302-312 is a Danfoss VLT FC 302 automation drive with excellent closed-loop speed accuracy of ±0.15 RPM and a 1:1000 closed-loop speed range. Fast 1 ms scan response and 32 kHz digital output frequency support precise command handling in demanding motion applications. High power quality with >0.98 displacement power factor makes the FC302-312 a strong choice for efficient automation systems.
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Product Description:
The FC302-312 is a variable frequency drive produced by Danfoss for the VLT FC 302 Automation Drives series. It converts fixed-frequency, three-phase input power into variable-voltage, variable-frequency output power that controls induction and permanent-magnet motors. Used in material-handling lines, pump skids, and conveyor modules, the drive provides closed-loop speed control, torque limiting, and start-stop sequencing so downstream machinery can maintain repeatable motion profiles as loads and operating temperatures change.
The single analog output channel uses a 12-bit converter that provides 4,096 discrete steps, and the receiver impedance must remain below 500 Ω for a linear response. The drive has two digital outputs that operate at 32 kHz, producing clean pulse streams for high-speed sequencing. Its process image updates every 1 ms, supporting closed-loop speed accuracy of ±0.15 rpm across a 1:1000 operating range. The available control connections also include two relay contacts and two digital inputs, allowing the drive to exchange status and command signals with external automation equipment.
Each digital output can source up to 40 mA, providing sufficient current for light-duty relays or optocoupler interfaces. The drive maintains its full rating at altitudes up to 1000 m when the supply phase imbalance remains within 3.0% of nominal. Grid performance is supported by a displacement power factor greater than 0.98, while the true power factor remains at least 0.9 to limit reactive demand. Unshielded motor cables may extend up to 300 m, while shielded motor cables are limited to 150 m. These cable limits allow the drive to serve motors installed near the control panel or at more distant locations while controlling the electrical effects associated with long cable runs.
