AX2090-BW50-0600
The AX2090-BW50-0600 from Beckhoff is a core element of the AX Digital Servo Drives series, offering a continuous output of up to 6 kW and featuring voltage-controlled brake resistor activation for precise energy dissipation. Designed as a stand-alone external braking resistor, it is built to handle regenerative energy from high-performance servo drives in demanding industrial automation systems. Its primary application is to ensure smooth and predictable deceleration by converting excess kinetic energy into heat, protecting mechanical components and drive electronics during rapid stops and dynamic load changes.
Incorporating an internal resistor power of 250 W alongside a main resistor element, the AX2090-BW50-0600 addresses both small and bulk energy dissipation requirements without the need for additional braking modules. Forced cooling maintains optimal operating temperatures under continuous or cyclical duty, extending the resistor’s service life and reliability. Integration is simplified via the AX-Bridge module connection method and diagnostics are readily available through the EtherCAT interface, enabling real-time monitoring, fault detection, and parameter adjustment within the TwinCAT control environment. Auxiliary capacitance of 705 μF buffers instantaneous power spikes, further smoothing the deceleration profile and reducing stress on the DC link and drive inverters.
This unit mounts externally to the control cabinet, ensuring effective heat convection into the surrounding environment and easing maintenance access without disrupting internal cabinet layouts. It is compatible with AX5x01 through AX5112 digital drives and supports modular expansion via the AX5021 brake module for complex multi-axis installations. By leveraging DC link regenerative energy and a robust heat generation mechanism, the resistor achieves high efficiency while minimizing the footprint and wiring complexity of braking systems. In industrial applications such as robotics, conveyor systems, and high-speed assembly machines, the AX2090-BW50-0600 delivers enhanced braking performance, improved system uptime, and reduced maintenance costs, making it an indispensable solution for modern automation challenges.