07.F5.B1B-LB0A by KEB

The 07.F5.B1B-LB0A is an AC axis drive manufactured by KEB within the F5 Combivert Axis Drives series. It functions as a stand-alone inverter that modulates three-phase power so industrial controllers can regulate induction motor speed and torque on conveyors, spindles, or material-handling stations. By delivering programmable output without an encoder interface, the unit supports installations that require effective speed and torque control in open-loop applications.

This model employs BASIC open-loop flux vector control, allowing stable torque even below the minimum full-load frequency of 6 Hz. At peak, it can synthesize frequencies up to 1600 Hz, while continuous current reaches 2.6 A and motor output is limited to 0.75 kW. The DC link is switched at 16 kHz, balancing acoustic noise with heat generation that is removed through a B-form-factor heat sink. Output power is rated at 1.8 kVA, and the integrated braking transistor connects to external resistors with a minimum resistance of 120 ? for controlled deceleration. Wiring is simplified by the absence of an encoder socket; shielded motor leads with conductors up to 1.5 mm² may be used at lengths up to 5 m. The B-style housing fits compact panels where multiple axes are installed side by side.

The drive has an IP20 protection rating for cabinet mounting, a maximum heat sink temperature of 90 °C, and an operating elevation limit of 2000 m. Dynamic stops are supported by a braking path that can momentarily conduct 7.5 A, provided the external resistor dissipates the surge without exceeding its rating. The external braking resistor must have a resistance of at least 120 ?. The drive has a total mass of 2 kg, which reduces the load placed on a mounting backplate. Adequate cabinet ventilation is necessary to control heat produced by the power electronics and switching stage. Shielding and proper cable routing help limit electrical interference between the drive, motor leads, and nearby control wiring.