Technical Description: KEB 20F544R-2434 COMBIVERT F5
The KEB 20F544R-2434 is a powerful, industrial-grade frequency inverter from the acclaimed COMBIVERT F5 series. This drive is a «General» series unit, designed for universal use with asynchronous and synchronous motors. Size 20 in KEB’s nomenclature indicates a significant power stage, typically suitable for heavy-duty applications in elevators, plastics machinery, and large-scale industrial conveyors requiring precise speed and torque regulation.
Drive Control and Power Architecture
The 20F544R-2434 features a robust power stage capable of handling high overload conditions. As part of the F5 series, it offers a modular approach to automation, allowing for the integration of various fieldbus operators (EtherCAT, PROFINET, CANopen) and encoder feedback cards. This specific model is optimized for high-performance closed-loop or open-loop control, ensuring maximum efficiency across the motor’s entire speed range.
Key Characteristics
- Part Number: 20F544R-2434.
- Series: COMBIVERT F5-G (General).
- Frame Size: 20.
- Input Voltage: 400V Class (3-Phase).
- Rated Power: 30 kW / 37 kW (Heavy Duty / Normal Duty).
- Braking Transistor: Integrated.
- EMI Filter: Integrated (Class dependent).
- Cooling: Fan-cooled heatsink.
System Versatility and Performance
The COMBIVERT F5-G is the benchmark for flexibility. The 20F544R-2434 supports a wide array of motor control types, including V/Hz, sensorless vector control, and precise position control when used with an encoder interface. Its thermal management system is designed for continuous S1 duty cycles in high-ambient-temperature environments, making it a reliable choice for critical manufacturing infrastructure.
| Category | Specification |
| Protection Rating | IP20 (Standard) |
| Overload Capacity | 150% for 60 seconds / 180% for 2 seconds |
| Communication | Modular Operator (Sold Separately) |
Technical Note
For optimal operation, ensure the drive is commissioned using the KEB COMBIVIS 6 software. The 20F544R-2434 requires proper airflow in the control cabinet to prevent derating. Always verify the motor data against the inverter’s parameter set to ensure efficient torque delivery and prevent winding overheating.
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