Product Description:

The 07.F4.C3D-3420 belongs to the F4 Combivert Frequency Inverters series produced by KEB. It is a cabinet-mounted AC drive intended to adjust the speed of small induction or synchronous motors used in conveyors, pumps, and general machine automation. By converting fixed mains voltage into a variable-frequency, variable-amplitude output, the inverter lets controllers match motor torque to process demand and improve energy use across an installation. This operating principle also helps reduce abrupt starts and supports smoother machine response during routine speed changes.

This model is designed for industrial supplies of 400 V AC and a three-phase connection, ensuring symmetrical loading of the distribution network. At the input, its draw reaches 2.8 A under rated conditions, translating to an apparent power of 1.8 kVA. The output stage supports a continuous line current of 2.6 A and meets the EMC limits of EN 61800-3. An internal filter is integrated, so no extra footprint is needed, and the overall width remains 90 mm with the filter installed. Protection class IP20 permits installation inside enclosed control panels where basic touch protection is provided, and the enclosure is intended for protected cabinet use rather than direct exposure on the machine frame.

The inverter can drive motors up to 0.75 kW and modulate frequency from zero up to 816 Hz, allowing operation far beyond nominal motor base speed when the load profile permits field weakening. For 30-second acceleration bursts, the power stage supplies a peak line current of 4.6 A, giving additional torque headroom during startup or short overload events. Command inputs are sampled with 10-bit analog precision, while internal position or speed counters resolve to 15-bit values, supporting fine adjustment in closed-loop applications. These control features help the inverter follow changing setpoints smoothly during ramps, indexing moves, and other duties that benefit from stable low-speed behavior.