Product Description:

The AX5021-0000-0000 servo drive is produced by Beckhoff as part of the AX Digital Servo Drives series. It operates as the power interface between a motion controller and a three-phase motor, converting DC bus energy into phase-synchronized voltage while handling regenerative power through an integrated brake circuit. In industrial automation systems, the unit supplies torque and velocity control for packaging axes, material-handling gantries, and other precise electromechanical tasks across automated lines. Its design supports modular cabinet mounting alongside matching power supplies so multi-axis lines can be scaled easily.

Thermal loading is governed by a continuous external braking capacity of 6 kW, allowing sustained dissipation when an external resistor is wired, while the internal resistor supports 150 W for applications with lower regenerative energy. The minimum external brake resistance of 22 Ω limits current peaks so the drive and cabling remain within safe thermal limits. A DC-link capacitance of 705 µF smooths the intermediate-circuit voltage, storing energy for short load surges and reducing ripple. With a depth of 232 mm, the housing fits standard 300 mm cabinets yet leaves room for airflow behind the heat sink. Maximum power loss inside the drive is 250 W, which should be considered when sizing cabinet ventilation for continuous motoring and braking cycles.

Short, high-energy stops can be managed because the external brake path tolerates 32 kW of peak power, while the internal resistor accepts up to 14 kW for a brief duty cycle without external hardware. The front width of 92 mm keeps the unit compact so adjacent drives can share busbars in tight enclosures. The overall height of 274 mm without plugs matches standard 19-inch control rows, simplifying vertical stacking.