Description
Part Number Breakdown & Configuration
Kollmorgen utilizes a heavily customizable nomenclature system for the AKM family. The exact specifications for your model code break down as follows:
| Code Segment | Parameter | Description |
|---|---|---|
| AKM | Product Family | AKM Series Brushless Servo Motor |
| 2 | Frame Size | 58 mm square frame housing layout |
| 2 | Rotor Stack Length | Single-stack rotor configuration |
| E | Winding Type | E-winding optimized for high-speed dynamics (typically up to 8000 RPM maximum) |
| C | Flange/Mounting | Alternative standard mount configuration |
| K | Shaft Style | Keyway shaft implementation |
| S | Connectivity | Special or custom connector layout (e.g., dedicated single/dual low-profile plug assignments) |
| N | Fail-Safe Brake | No brake assembly installed (standard internal rotor inertia) |
| R | Primary Feedback | Standard high-accuracy Resolver system (provides robust angle tracking in high-vibration applications) |
| 05 | Suffix Variant | Specialized customer modification code, specific shaft oil seal tier, or factory environmental rating variant |
General Technical Specifications
- Continuous Stall Torque: Approx. 0.87 Nm (7.7 lb-in)
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- Peak Dynamic Torque: Approx. 2.76 Nm (24.4 lb-in)
- Maximum Rated Velocity: Up to 8,000 RPM depending on matching drive bus parameters.
ArtisanTG
- Continuous Stall Current: 2.73 A continuous (based on standard 100∘C winding rise over a 40∘C ambient background).
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- Voltage Support: Designed to run seamlessly with bus inputs up to 320 VDC / 240 VAC structural targets (compatible with Kollmorgen AKD series servo drives).
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- Insulation Integrity: Class F insulation matrix rated to protect core internal windings against dynamic operational spikes.
Engineering & Field Experience Insights
Resolver Feedback Resilience
The “R” configuration utilizes an analog resolver rather than a sensitive optical or digital encoder. Because resolvers are primarily composed of rugged internal copper coils and steel laminations, they handle massive temperature swings, high electromagnetic noise environments, and heavy mechanical shock loads far better than optical alternatives.
Custom Hardware Precautions
Because your code features the explicit “S” (Special Connection) and “05” (Custom Variant Modification) variables, do not treat this unit as a generic catalog-drop motor.
- Connector Pinout Verification: The “S” connector choice indicates it likely utilizes a non-standard cable pin orientation, shorter lead-wire pigtails, or non-catalog quick-disconnect shells. Before hooking it up to an active Kollmorgen AKD amplifier, ring out the continuity maps of your power and feedback lines using a digital multimeter to confirm that the feedback lanes match your system schematic.
- Shaft Keys: The “K” parameter signifies a cut keyway. When installing or extracting the motor pulley or coupling interface, use a dedicated mechanical puller tool. Forcing a coupling onto the keyway with a standard hammer will drive dynamic axial force through the front bearing assembly, inducing micro-pitting in the internal races and causing premature acoustic whining or mechanical lockup.
ArtisanTG
Safe Swap Protocols
When deploying a replacement motor, clear out the previous drive’s adaptive loop autotuning parameters inside the workbench software. Because physical motor characteristics shift slightly over runtime histories, running a clean initial autotuning sequence with the new resolver ensures optimized position loop gains and prevents erratic axis hunting or overheating.
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