AX5203-0000-0200 by Beckhoff

The AX5203-0000-0200 is a dual-axis servo drive released by Beckhoff within the AX Digital Servo Drives series. It interfaces between a DC-link supply and two motor channels to regulate current, monitor voltage, and perform dynamic braking in automated machinery such as packaging lines and gantry systems. By combining current regulation with field-oriented control algorithms, the unit delivers torque commands that keep synchronous or induction motors synchronized with motion controller setpoints in industrial automation.

Each axis provides a nominal output current of 3 A, a level intended for continuous production duty without thermal derating. For rapid acceleration or shock loads, the current can briefly increase to 10 A per channel, providing additional torque. When connected to a 480 VAC supply, the converter can process up to 5.0 kVA of apparent power, so cabinet supply wiring must accommodate that demand. The shared DC bus supports a maximum voltage of 875 VDC; remaining below this limit helps prevent insulation breakdown in internal components. A DC-link capacitance of 470 µF smooths pulse-width-modulated energy from the rectifier and supplies transient current during fast motor commutation.

The housing measures 92 mm wide, 317.70 mm high, and 232 mm deep, allowing side-by-side installation on a DIN rail with adequate airflow. An IP20 protection rating means live parts are protected against finger contact, but the drive must be mounted in a closed control cabinet when exposed to dust or moisture. Internal chopper circuitry converts regenerative energy into heat at rates up to 14 kW, while external resistors can dissipate an additional 15 kW when high-inertia loads decelerate. The internal braking circuit provides 150 W of continuous braking power, and the system requires a resistor with a minimum resistance of 47 ? to limit current during high-energy stops. Power loss is rated at 85 W, and peak device current reaches 20 A, so enclosure cooling must keep the electronics within their permitted operating temperatures.