AX2503-B750-0000 Beckhoff
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The Beckhoff AX2503-B750-0000 is part of the AX Digital Servo Drives series and delivers a rated output current of 3 Arms with a peak output of 9 Arms. The drive supports load inductances from 12 mH to 75 mH and features an output stage clock of 8 kHz. With dimensions of 230 mm in height, 100 mm in width, and 240 mm in depth, it weighs 3 kilograms.
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Product Description:
The AX2503-B750-0000 is a Beckhoff single-axis servo drive that belongs to the AX Digital Servo Drives series. Its 100 mm width, 230 mm height, and 240 mm depth let it fit compact control cabinets without taking up much panel space. The drive converts DC link energy into regulated three-phase output for synchronous motors used in automated handling, printing, and packaging cells. It serves as the power interface between a motion controller and the motor, executing precise torque and velocity commands through its integrated analog reference channel.
During continuous duty, the drive supplies a rated output of 3 Arms. For short acceleration peaks, it can source up to 9 Arms when rapid load changes occur. An output stage clock of 8 kHz sets the PWM carrier and helps keep current ripple close to the specified output current form factor of 1.01. The DC-bus monitoring circuit trips if link voltage reaches 450 V. Cabinet thermal design must accommodate 12 W of quiescent loss and 35 W of dissipation at rated current. The current loop is optimized for loads down to 12 mH of inductance, and command signals enter through a 20 kΩ differential analog input that helps reduce noise at the control stage.
The analog interface can resolve command changes as small as 1.25 mV, and the conversion hardware refreshes every 62.5 µs, allowing tight velocity loops in high-bandwidth applications. On the load side, motor windings of up to 75 mH are permitted, which broadens the range of compatible servomotors beyond the minimum inductance limit. A die-cast housing gives the unit an overall mass of 3 kg and supports vertical or horizontal mounting without additional bracing.
