Kollmorgen AKM42E-EKGNR-01 AKM Series Brushless Servo Motor

Description

Key Technical Specifications

Product Introduction & Supply Chain Strategy

The Kollmorgen AKM42E-EKGNR-01 is a high-performance brushless AC servo motor engineered for demanding industrial automation applications, including high-speed packaging, robotic positioning, material handling, and CNC machinery. Built on an 84 mm (Frame 4) platform with an extended ‘E’ rotor stack, this motor delivers exceptional torque density, low cogging, and smooth tracking across a wide speed spectrum.

Holding this motor in your inventory as New Surplus provides an optimal balance of immediate hardware readiness and capital efficiency. Industrial motion axes are routinely exposed to mechanical shock, unexpected shaft overloads, and bearing fatigue. Maintaining an unused, OEM-original AKM42E-EKGNR-01 in safety stock mitigates factory lead times, protecting your operations against costly line stops and lowering overall Total Cost of Ownership (TCO).

Installation & Configuration Guide

1.Pre-Installation & Mechanical Safety:De-energize drive power and inspect shaft keyway.

1. Lock out and tag out all electrical power to the servo drive before touching motor or load connections.
2. Inspect the motor shaft keyway and mounting pilot to confirm they are clean and free of burrs or protective transit grease.
3. Verify that the driven coupling or pulley bore matches the keyed shaft dimensions of the AKM42E motor.

2.Mechanical Mounting & Coupling Engagement:

1. Align the shaft key with the mating coupling keyway and slide the coupling smoothly onto the shaft without using hammer impacts.
2. Bolt the motor flange to the mounting bracket in an alternating cross pattern to ensure even alignment.
3. Torque coupling set screws or clamping bolts to manufacturer specifications to eliminate backlash.

3.Power & Feedback Cabling:

1. Route power and high-resolution feedback cables through separate wire tracks to minimize electrical noise coupling.
2. Securely plug in the dual Intercontec power and feedback connectors, twisting the locking rings to achieve an IP65 environmental seal.
3. Ensure the protective earth (PE) wire is properly connected to the drive grounding bus.

4.Power-On & Motion Commissioning:

1. Apply logic power to the servo drive and select or auto-read the motor model code (AKM42E-EKGNR-01) in the drive setup software.
2. Execute a low-speed jog test to confirm correct rotation direction and verify feedback signal count.
3. Enable full DC bus power and run an automated tuning cycle to optimize current and velocity loop gains.

AKM42E-EKGNR-01

AKM42E-EKGNR-01

Firmware/Software Versions & Upgrade Notes

• Drive Setup Parameter Integration: When using Kollmorgen AKD or Servostar drives, motor parameters and thermal limits are automatically recognized if the motor utilizes an electronic nameplate (SFD/encoder). For third-party drives, manually enter the exact continuous current, peak current, and pole-pair specifications from the AKM42E data sheet.
• Commutation & Feedback Integrity: The rear feedback unit is factory-aligned to the stator winding magnetic field. Never loosen or attempt to disassemble the rear feedback cover, as misaligning the feedback sensor will cause commutation failure or drive overcurrent faults.
• No-Brake Configuration: This unit suffix (“N”) indicates a non-brake configuration. If installing on a vertical z-axis or inclined conveyor, ensure an external mechanical brake or pneumatic counter balance is installed to prevent gravitational dropping when drive power is removed.

Frequently Asked Questions (FAQ)

Is this Kollmorgen -EKGNR-01 motor brand new or reconditioned?

This motor is New Surplus (Original New). It is unused OEM stock sourced from system integrator surplus or factory spare holdings. It has never been installed on active machinery or used in production.

Why choose New Surplus over a cheaper refurbished servo motor?

Refurbished servo motors are often subjected to aggressive shaft grinding, invasive rewinding, or third-party bearing replacements that alter internal tolerances and reduce insulation life. They also risk degraded feedback electronics that can cause position drift or intermittent drive trips. Sourcing New Surplus guarantees original OEM tolerances, full winding insulation life, and maximum dynamic performance.

Does this motor feature a keyed shaft?

Yes. The “G” shaft designation in the model code indicates a standard keyed shaft, making it compatible with keyed couplings, gears, and timing pulleys.

What is the advantage of the ‘E’ stack length in Frame 4?

The ‘E’ stack represents an extended rotor length within the 84 mm frame size. It offers higher continuous and peak torque output compared to ‘A’, ‘B’, or ‘C’ stack motors of the same frame size, making it suitable for high-inertia loads.

What warranty comes with this New Surplus motor?

We back this unit with a 1-Year Comprehensive Replacement Warranty. Every -EKGNR-01 motor undergoes visual inspection, winding phase resistance checks, and feedback continuity testing prior to shipment.