AX2003-B900-0001 Beckhoff
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The AX2003-B900-0001 from Beckhoff is part of the AX Digital Servo Drives series and features a rated output current of 3 Amps with a peak output current of 6 Amps. This drive has a quiescent dissipation of 15 Watts and supports Ethernet fieldbus expansion. The unit includes an internal regen resistor of 66 Ohms and supports a maximum load inductance of 75 millihenries.
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Product Description:
The AX2003-B900-0001 is a single-axis drive module produced by Beckhoff within the AX Digital Servo Drives series. It operates as a power stage between a motion controller and a synchronous motor. By supplying regulated current and monitoring feedback, it maintains precise speed, position, and torque in automated machinery such as handling gantries, packaging lines, and pick-and-place stations. This closed-loop arrangement helps the axis respond accurately to changing loads and commanded motion profiles during normal machine operation.
The drive can deliver a continuous motor phase current of 3 A and tolerate surges up to 6 A for rapid acceleration events. Control signals are accepted through an analog input that presents 20 kΩ impedance and is refreshed every 62.5 µs, allowing high-bandwidth torque loops. An output current form factor of 1.01 indicates that the RMS and average values are nearly identical, which helps limit motor heating. Motor inductances from 12 mH to 75 mH are permitted, so both low- and high-reactance windings can be connected without instability. The internal braking circuit uses a 66 Ω resistor, while an external 33 Ω element can be added when greater dynamic braking energy must be dissipated. A make-contact rated at 500 mA is provided for BTB/RTO interlocks, and EtherCAT or standard Ethernet cabling can be added through the fieldbus expansion slot for networked axis coordination. This combination supports both local analog control and coordinated multi-axis communication.
Thermal behavior includes a continuous regeneration capacity of 80 W and a dissipation of 40 W at rated current, backed by a quiescent loss of 15 W when the motor is idle. The installed load on the supply infrastructure is limited to 2 kVA, which helps keep panel transformers compact. During conduction the DC link exhibits only 5 V of residual drop, preserving voltage headroom for the motor windings. Low residual drop also helps maintain voltage available to the connected motor during changing load conditions.
Frequently Asked Questions about AX2003-B900-0001:
Q: What is the peak output current specification for the AX2003-B900-0001 servo drive?
A: The AX2003-B900-0001 servo drive provides a peak output current of 6 A, allowing for short bursts of higher torque if required.
Q: What type of fieldbus expansion does the AX2003-B900-0001 support?
A: This model supports fieldbus expansion via Ethernet for networked automation setups.
Q: How fast is the analog input update on the AX2003-B900-0001?
A: The AX2003-B900-0001 has an analog input update rate of 62.5 microseconds, enabling responsive analog signal processing.
Q: What is the internal regen resistor value for the AX2003-B900-0001?
A: The internal regen resistor value for this drive is 66 Ω, which is used for dissipating excess regeneration energy internally.
Q: What is the rated installed load capacity for the AX2003-B900-0001?
A: The AX2003-B900-0001 can handle a rated installed load of 2 kVA, supporting demanding servo motor applications.
