Product Description:

The FC-301P11KT4131Z5837 is a drive unit produced by Danfoss and belongs to the VLT FC 301 Automation Drives series. It serves automated machinery by modulating the electrical supply to induction motors, allowing precise adjustment of shaft speed during startup, normal operation, and deceleration cycles. With programmable control functions, the device fits into control panels that require compact speed regulation without mechanical dampers or gear changes. Its variable-frequency operation allows connected equipment to respond to changing process demands while reducing the mechanical stress associated with abrupt starts and stops.

The drive delivers a continuous output of 11 kW, which corresponds to 15 HP, so it can operate midsize motors in conveyors or pump stations. It is designed for an input range of 380–480 VAC with three-phase power, and the VVC+ control algorithm adjusts voltage and frequency simultaneously. Two isolated auxiliary supplies are available: the 10 V reference can source 15 mA, and the 24 V terminal supports 200 mA for sensors or potentiometers. Logic inputs tolerate up to 28 V DC, while the open-collector output sinks 40 mA for status indication. The cabinet power may be cycled only once per minute to protect the inrush circuitry from excessive electrical and thermal stress.

Feedback and timing functions are handled by an analog channel with 12-bit resolution that produces proportional voltage feedback for external controllers. The control card refreshes all parameters every 1 ms, keeping loop jitter low when multiple drives are networked. For higher-speed commands, the inverter can generate carrier frequencies up to 32 kHz, while step-train inputs are accepted at rates as high as 110 kHz. One programmable relay output allows direct actuation of contactors or alarms without requiring a separate PLC point. The available timing, feedback, and switching functions support coordinated motor control in automated systems with rapidly changing operating commands.