AX5203_LT00.9 Beckhoff
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The AX5203_LT00.9 is a servo drive manufactured by Beckhoff and is part of the AX Digital Servo Drives series. It features a nominal current per channel of 3 Amps and a total peak current of 20 Amps. The unit has 8 digital inputs and supports a maximum DC link voltage of 875 VDC.
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Product Description:
The AX5203_LT00.9 is a dual-channel servo drive from Beckhoff’s AX Digital Servo Drives series, built to regulate synchronous and induction motors in distributed automation cells. By processing encoder feedback and issuing pulse-width-modulated output, the unit closes the torque, velocity, and position loops that a motion controller commands. Its compact mechanics—92 mm wide, 232 mm deep, and 317.70 mm high—allow cabinet installation beside other EtherCAT-based drive modules, forming a modular axis rack for packaging, material-handling, and machining systems.
The power section is dimensioned for a maximum DC-bus potential of 875 VDC, buffered by a link capacitance of 470 µF that smooths regenerated energy and stabilizes bus ripple. Each channel sustains a continuous motor current of 3 A while short bursts may reach 10 A; together they deliver a combined overload envelope of 20 A. Eight digital inputs convey enable, limit, or homing events to the drive CPU so motion can react within one EtherCAT cycle. The specified currents dictate cable cross-section, protective device sizing, and thermal modeling for the attached motors and conductors.
Dynamic braking resources complement the current ratings without duplicating them. An external resistor network can absorb up to 15 kW, whereas the onboard transistor dissipates 150 W continuously and tolerates transient peaks of 14 kW; coordinated sizing avoids over-voltage trips when decelerating high-inertia loads. The module’s steady-state heat dissipation is limited to 85 W, so enclosure airflow or heat-sink plates must keep the heatsink below its permissible temperature while the 1 A sensor supply maintains encoder excitation. The 47 Ω minimum for the external brake resistor protects the chopper transistor from over-current, rounding out the energy-management strategy established by the bus capacitance and current envelopes.
