Product Description:

The F8.F5.S1E-33E2 is produced by KEB and belongs to the F5 Combivert Axis Drives series. This drive module serves as the power interface for a single automation axis, altering motor voltage and frequency so that speed and torque follow the machine controller’s commands. It supports regenerative braking, advanced current control, and integration with servo feedback loops, making it suitable for packaging lines, robotic cells, and other dynamic applications. That combination supports rapid speed changes, repeatable positioning, and stable motion during demanding cyclic operation.

The control philosophy is servo, which means the inverter modulates current from real-time position or velocity feedback rather than from open-loop scalar methods. Thermal management relies on water cooling, so a closed coolant circuit removes heat from the power stage and allows installation in sealed cabinets without heavy internal airflow. The power section accepts three-phase 400 VAC/DC mains or rectified bus connections, which matches its 400 V voltage class and maintains appropriate insulation spacing throughout the unit. A carrier switching rate of 16 kHz reduces audible motor noise and provides finer current resolution at low speeds. Liquid cooling also helps limit heat buildup around nearby cabinet components when the drive operates under sustained load.

The integrated braking transistor routes regenerated energy to an external resistor, so no separate chopper module is required. During fault conditions, the drive can withstand 150% of rated current, while short acceleration periods are supported by a 125% current capability. As a frequency inverter, the unit synthesizes a variable output waveform from the incoming DC link, and it can also operate from a direct DC supply in common-bus layouts. This makes it suitable for systems that share bus power across multiple coordinated axes. The housing uses form factor code E, which sets the frame dimensions and mounting hole pattern for cabinet installation.