KEB A3.SM.000-62DY COMBIVERT Synchronous Servo Motor

Description

Product Introduction

The KEB A3.SM.000-62DY functions as a high-precision, permanent magnet synchronous AC servo motor built for demanding industrial automation setups driven by KEB COMBIVERT servo drives. Designed for low-inertia applications requiring fast acceleration and tight position control, this motor delivers precise rotational feedback to the controller via its integrated high-resolution encoder or resolver interface.

Constructed in a compact square frame with a rugged IP65-rated housing, the A3.SM.000-62DY delivers a rated torque of 0.60 Nm at speeds up to 6000 RPM. Its heavy-duty neodymium magnet rotor structure handles high peak torques without demagnetization, ensuring continuous duty cycles in high-speed packaging, labeling, and CNC machinery.

Key Technical Specifications

Application Scenarios & The “Trench” Experience

When a dynamic servo motor insulation fails or its internal feedback unit drifts on a 24/7 packaging line, the servo drive throws an immediate “E.OP” (Overvoltage) or “E.Enc” (Encoder Fault). The line stops, indexers freeze, and product jams pile up. Finding an exact KEB motor match with identical shaft dimensions, winding voltages, and feedback pinouts gets the machine running immediately without re-engineering motor mounting plates or retuning control loops.

• High-Speed Packaging & Labeling Machines – Drives precision feed rolls and rotary cutters under continuous start-stop cycles.
• CNC & Automated Tooling – Powers auxiliary positioning axes, tool changers, and small multi-axis gantry robots.
• Textile & Printing Machinery – Controls electronic registration and precise tension control across web processing lines.

Field Case Study

A pharmaceutical blister packaging machine suffered a sudden encoder breakdown and winding insulation fault on a KEB A3.SM.000-62DY motor driving the main foil feed indexer. The plant faced losing thousands of units per hour in unscheduled downtime. Because the KEB COMBIVERT drive was tuned specifically for the inductance and back-EMF parameters of the A3.SM series, swapping to a different motor model would have required hours of parameter re-commissioning. We supplied a fully bench-tested surplus A3.SM.000-62DY motor overnight. Direct mechanical mounting and cable connection allowed the maintenance team to home the axis and resume full validated production within 30 minutes of installation.

A3.SM.000-62DY

A3.SM.000-62DY

Transparency SOP: Quality Assurance & Testing

We don’t just ship surplus motors; we test them on actual KEB servo drive test benches.

1. Inbound Mechanical Inspection: Check keyway condition, shaft runout, front flange mounting holes, smooth bearing rotation, and cable connector threads.
2. Winding Insulation & Resistance Checks: Perform Megger insulation testing (1000V DC) phase-to-phase and phase-to-ground, measuring balanced phase resistances.
3. Back-EMF & Phase Alignment: Measure phase voltage symmetry under spun conditions to confirm permanent magnet rotor integrity.
4. Live Drive & Feedback Test: Mount the motor to a KEB COMBIVERT F5/F6 servo drive, perform feedback alignment checks, and run full-speed bidirectional sweeps under load.
5. Anti-Static & Heavy-Duty Packaging: Secure the motor shaft with protective sleeves and pack in heavy foam-lined ESD-safe shipping containers.

The Veteran’s Tech Trap Guide

• ⚠️ Do Not Strike the Motor Shaft: Never use a hammer or pulley puller directly against the motor shaft when installing gears, timing pulleys, or couplings! The internal feedback encoder and precision ball bearings sit right behind the rear housing; axial mechanical impacts will shatter the encoder glass disk or ruin the bearing races.
• ❗ Verify Encoder/Resolver Alignment Before Swapping: If you attempt to field-replace the feedback unit on an old motor casing, you will ruin the commutation offset angle. Without precise phase-to-encoder alignment, the drive will draw excessive current, shudder, and trip on overcurrent immediately upon power-up.
• ⚠️ Check Power Connector Pinouts: KEB uses circular power and signal connectors. Ensure the motor cable ground (PE) and phase lines (U, V, W) are wired correctly. Crossing a motor phase with a feedback wire will instantly destroy the encoder interface board inside the drive.
• ❗ Ensure Proper Shaft Seal Lubrication: If running the motor with a gearbox or oil bath, verify whether your specific 62DY variant has a fitted radial shaft seal ring. Running an unsealed motor in an oil environment will allow fluid to enter the stator cavity and destroy the windings.

Frequently Asked Questions (FAQ for Conversion)

Q: Is the KEB A3.SM.000-62DY still manufactured by KEB?

A: No. The A3.SM series has been replaced by newer KEB TA/DL series servo motors. We supply clean, fully tested surplus and reconditioned stock to keep existing machine installations running without mechanical retrofits.

Q: Can I run this motor directly from a standard 3-phase AC line?

A: No! The A3.SM.000-62DY is a permanent magnet AC synchronous servo motor requiring a compatible closed-loop servo drive (such as a KEB COMBIVERT F5, F6, or S6) to provide electronic commutation and current control.

Q: What feedback device is integrated into this motor model?

A: The A3.SM series typically incorporates high-resolution optical encoders or resolvers depending on the specific suffix options. Always match the feedback pinout designation against your existing motor nameplate before ordering.

Q: What warranty coverage comes with this surplus servo motor?

A: We back all clean surplus and reconditioned A3.SM.000-62DY motors with a full 12-month operational replacement warranty.

Q: Why choose a tested surplus motor over replacing the complete drive system?

A: Upgrading a complete motor and drive system requires panel rewiring, PLC program modifications, and extensive motion tuning. A direct surplus motor replacement gets your machine back online in minutes at a fraction of the cost.