AX2090-NF50-0100 by Beckhoff

The AX2090-NF50-0100 is produced by Beckhoff as part of the AX Digital Servo Drives series. It functions as a drive-side component that connects power from the servo amplifier to the motor while maintaining electromagnetic compatibility within an automation cabinet. The unit is intended for installations where rapid energy transfer and controlled discharge are required to protect personnel and downstream equipment. Its cabinet-mounted design places the electrical connection and discharge functions close to the associated servo drive equipment.

The drive circuit is designed for a nominal line voltage of 480 VAC at the industrial standard of 50/60 Hz, and it can conduct up to 100 A continuously without exceeding its copper loss rating. Internal copper tracks have a resistance of only 0.817 m?, so the voltage drop remains minimal even at full load. When cabinet doors are opened, the voltage of live parts must fall below 50 V. Built-in bleeding elements reduce the residual voltage to this safe threshold according to the required discharge profile. The short-term overload capacity is 1.5 × In for 3 minutes and 2.5 × In for 30 seconds, allowing the assembly to handle acceleration peaks or braking energy without excessive thermal stress. Current and temperature ratings are based on a nominal ambient temperature of 40 °C, providing a consistent reference for applicable derating curves.

A waiting period of 5 minutes is required after mains power is removed before service work can begin, allowing residual energy to decay fully. Signal integrity is supported by a shielded outer jacket, which helps limit electromagnetic interference from switching activity. The permitted drive cable length is limited to 0.4 m to keep switching-edge rise times within electromagnetic compatibility requirements. With a mass of 6.0 kg, the module adds moderate weight to vertical panel arrangements while providing the necessary mechanical stiffness. Nominal operation is permitted at an ambient temperature of up to 40 °C. The housing geometry aligns with other accessories in the AX Digital Servo Drives series to support an orderly cabinet layout.