Product Description:

The 15.F4.FBG-4I14 frequency inverter is produced by KEB and belongs to the F4 Combivert Frequency Inverters series. It converts fixed-frequency three-phase power into a modulated output so that PLCs can vary the speed and torque of AC machines in automated conveyors, pumps, and machining cells. Mounted in a control cabinet, the unit forms the link between plant controllers and motor terminals to deliver closed-loop velocity regulation where process accuracy and energy efficiency are required.

The drive regulates motor flux with a field-oriented control algorithm that calculates torque-producing and magnetizing currents separately, improving low-speed response and dynamic braking. Its G-size housing establishes the mechanical footprint and aligns the power terminals with compatible busbar spacing in cabinet installations. The inverter supports a maximum motor output of 11 kW without derating when the stated ambient limits are maintained. Internally, the inverter uses a carrier frequency of 2 kHz, balancing acoustic noise, thermal dissipation, and current ripple for general-purpose motion tasks. The electronics are protected by an IP20 enclosure, which prevents accidental finger contact with live parts while relying on the surrounding cabinet for additional protection against dust and splashing water.

The unit operates within a temperature range of -10 to 45 °C, allowing installation in most indoor production spaces without supplementary cooling. It tolerates relative humidity up to 95% when condensation is prevented, so seasonal changes in plant moisture do not interfere with the inverter electronics or bus capacitors. The drive is classified under the COMBIVERT F4 product type and uses the parameter structure associated with that platform. Its control capabilities support variable-speed applications that require regulated motor flux, stable low-speed performance, and coordinated responses to commands from plant control systems.