Beckhoff AX5000 Series Servo Drives — AX5118-0000

Technical Dossier

Product Details And Specifications

Beckhoff AX5000 Series: Comprehensive Module Range and Technical Overview

The Beckhoff AX5000 series is a line of digital compact servo drives built on EtherCAT-based drive technology, designed for integration with Beckhoff TwinCAT automation platforms. Deployed across heavy industrial sectors including chemical processing plants, nuclear facility auxiliary systems, oil refinery control loops, and precision manufacturing lines, the AX5000 series occupies a significant installed base in motion control applications requiring deterministic real-time communication and multi-axis synchronization. Its native EtherCAT interface (CoE — CANopen over EtherCAT) eliminates the need for dedicated fieldbus hardware, reducing cabinet footprint and wiring complexity. The series spans single-axis and dual-axis configurations with continuous output current ratings from 1.5 A to 170 A, covering servo motor frame sizes from sub-kilowatt spindles to multi-kilowatt gantry drives.

The Evolution of AX5000 Architecture

The AX5000 series was introduced by Beckhoff as a successor to earlier analog and SERCOS-based drive platforms, consolidating motion control into the TwinCAT NC/PTP and CNC environments. Early revisions of the AX5000 operated exclusively with synchronous servo motors via resolver or SinCos encoder feedback. Subsequent hardware revisions added support for EnDat 2.2, BiSS-C, and Hiperface DSL single-cable feedback systems, reducing cabling requirements for multi-axis machines. The AX5000 communicates via EtherCAT at cycle times down to 62.5 µs, enabling tight multi-axis interpolation. Compatibility considerations arise when integrating AX5000 drives with legacy Beckhoff CX or IPC controllers running TwinCAT 2 versus TwinCAT 3 — firmware versions must be matched to the TwinCAT NC runtime version. Drives manufactured before 2015 may require firmware updates to support newer SFC (Safe Function Calls) and TwinSAFE integration. The AX5000 line is currently in its mature phase; Beckhoff continues to supply spare units and replacement modules, but the series is not receiving new feature development — successor motion platforms such as the AX8000 multi-axis servo system represent the current generation for new machine designs.

AX5000 Full Catalog & Functionalities (SKU List)

The following SKUs represent the verified AX5000 product range, classified by axis configuration and continuous output current rating. All units are single-phase or three-phase 100–480 V AC input unless noted.

Single-Axis Drives

AX5101-0000: Single-axis servo drive, 1.5 A continuous output current, EtherCAT CoE interface.

AX5103-0000: Single-axis servo drive, 3 A continuous output current, resolver and encoder feedback.

AX5106-0000: Single-axis servo drive, 6 A continuous output current, SinCos/EnDat 2.2 compatible.

AX5112-0000: Single-axis servo drive, 12 A continuous output current, supports BiSS-C feedback.

AX5118-0000: Single-axis servo drive, 18 A continuous output current, EtherCAT CoE, EnDat 2.2/BiSS-C/Hiperface DSL feedback, 100–480 V AC, TwinSAFE-ready option slot.

AX5125-0000: Single-axis servo drive, 25 A continuous output current, extended thermal management.

AX5140-0000: Single-axis servo drive, 40 A continuous output current, three-phase supply mandatory.

AX5160-0000: Single-axis servo drive, 60 A continuous output current, integrated brake chopper.

AX5172-0000: Single-axis servo drive, 72 A continuous output current, high-inertia load applications.

AX5190-0000: Single-axis servo drive, 90 A continuous output current, heavy-duty spindle and gantry use.

AX51xx-0090: TwinSAFE option card for AX5000 single-axis drives, STO/SS1/SLS safety functions, SIL 2 / PLd.

Dual-Axis Drives

AX5201-0000: Dual-axis servo drive, 2 × 1.5 A continuous, shared DC bus, compact multi-axis cabinet design.

AX5203-0000: Dual-axis servo drive, 2 × 3 A continuous, EtherCAT CoE, resolver feedback per axis.

AX5206-0000: Dual-axis servo drive, 2 × 6 A continuous, EnDat 2.2 per axis, shared brake resistor bus.

AX5212-0000: Dual-axis servo drive, 2 × 12 A continuous, BiSS-C/Hiperface DSL, TwinSAFE option slot.

AX5218-0000: Dual-axis servo drive, 2 × 18 A continuous, high-performance dual-axis interpolation.

Supply and Auxiliary Modules

AX5801-0000: Mains filter module for AX5000 series, EMC Class C2 compliance, 3-phase.

AX5805-0000: Brake resistor module, external dynamic braking for high-inertia deceleration cycles.

Sourcing Hard-to-Find & Obsolete AX5000 Parts

DriveKNMS maintains a dedicated inventory program for AX5000 series modules, including units that have been discontinued from Beckhoff's standard distribution channel. As the AX5000 series enters its extended lifecycle phase, procurement lead times through OEM channels can extend to 16–26 weeks for certain current ratings. DriveKNMS sources verified surplus, refurbished, and new-old-stock (NOS) AX5000 units through a qualified supplier network, providing an alternative procurement path for maintenance teams operating existing machine fleets. All units are supplied with full traceability documentation. For end-of-life planning, DriveKNMS can provide cross-reference data mapping AX5000 models to AX8000 equivalents where a controlled migration is feasible.

Quality Control for the AX5000 Range

AX5000 drives incorporate a multi-layer backplane and EtherCAT ASIC (ET1100 or equivalent) that requires functional verification beyond basic power-on testing. DriveKNMS applies the following test protocol to all AX5000 units processed through its facility: (1) DC bus capacitor ESR measurement and capacitance verification against OEM specification; (2) IGBT gate drive integrity check under no-load switching conditions; (3) EtherCAT link establishment and distributed clock synchronization test with a reference TwinCAT 3 runtime; (4) feedback interface continuity and signal quality test for resolver, EnDat 2.2, and BiSS-C channels; (5) STO (Safe Torque Off) functional test where the TwinSAFE option card is present; (6) thermal imaging under 50% rated load for 30-minute soak period to identify latent thermal interface failures. Units that do not pass all six stages are quarantined and not offered for resale.

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