Product Description:

The 15.F4.F1G-4I40 is an AC drive produced by KEB within the F4 Combivert Frequency Inverters series. It serves as the central speed-control element between a three-phase supply and an induction motor, allowing precise regulation of torque and velocity in automated machinery and material-handling lines. By using vector control algorithms, the unit keeps motor flux and current aligned, which helps maintain stable operation under changing mechanical loads. This arrangement also lets the inverter adjust output frequency and voltage so the connected motor can respond smoothly during acceleration, steady running, and commanded speed changes. It is suitable for processes that require repeatable motor behavior across varying throughput conditions.

The drive employs field-oriented control, so the stator current is separated into torque-producing and magnetizing components to improve dynamic response when the load varies. This control method supports stable low-speed operation and helps limit speed deviation when the machine load changes abruptly. A three-phase mains connection links directly to plant power grids without single-phase derating. Cabinet depth is 255 mm, and the overall height is 340 mm, which helps simplify enclosure layout when multiple drives share one panel. The electronics and heat sink are contained in a G-type housing with a width of only 170 mm, conserving lateral space beside contactors or PLC hardware.

A built-in braking transistor provides an electrical path for surplus DC-bus energy so external resistors can dissipate excess energy during fast deceleration. This feature supports applications that need controlled stopping behavior after a rapid speed reduction or a heavy overhauling load. Total shipping mass is 10 kg, which helps keep handling manageable during installation at the specified mounting height of 330 mm above the base plate. The chassis offers a fastening span of 150 mm between centers, and each flange opening accepts hardware through a 7 mm diameter bore. These mounting points help the inverter remain secure in wall-mounted racks exposed to routine vibration in production environments.