AX5101-0000-0202 by Beckhoff

The AX5101-0000-0202 is a single-axis servo drive from Beckhoff's AX Digital Servo Drives series. As a compact drive controller, it converts three-phase mains power into regulated motor current so that automation systems can command torque, velocity, and position with cycle-synchronous precision. Its role inside a machine cell is to close the power loop between a PC-based motion controller and the rotary or linear servomotor attached to the load.

The power stage supplies a nominal motor current of 1.5 A and can reach a peak of 4.5 A during acceleration. A connector rated for 41 A carries this output while the DC bus is stabilized by 235 µF of link capacitance. The link can rise to a maximum of 875 VDC, so correct over-voltage monitoring is required. Protective devices include 10 AT single-phase and 6 AT three-phase AC line fuses plus a 3.4 AF internal 24 V logic fuse. When very light loads are connected, a minimum parameterizable peak current of 0.35 A prevents nuisance trips. On braking events, energy may be routed to an external resistor no smaller than 47 ?, and the internal circuitry can dissipate 50 W continuously without exceeding thermal limits.

The housing spans 92 mm in width and 317.70 mm in height, with a cabinet depth of 232 mm measured without front connectors, allowing high-density mounting on DIN rail. Short bursts are absorbed by an internal brake module that handles 14 kW peak, while loads with higher inertia can be diverted to an external brake rated up to 15 kW. Together these braking paths manage the regenerative energy so that the DC link stays below its trip threshold. The package's dimensions and the integrated brake options give OEMs freedom to place the drive near the motor, reduce panel wiring, and maintain thermal headroom in continuous duty.