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AKM42S-GCSN2-02 Kollmorgen

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Internal Product Review

The AKM42S-GCSN2-02 is a Kollmorgen AKM synchronous servo motor with a special winding for demanding motion applications. Comcoder feedback with 2048 lines/rev supports precise and stable position control. A keyway shaft and brake-free configuration make this unit a strong choice for clean, efficient servo integration.

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Product Description:

The AKM42S-GCSN2-02 is a synchronous servo motor produced by Kollmorgen and supplied under the AKM Synchronous Servo Motors series. It is intended for closed-loop motion axes where tight position and velocity regulation are required, such as pick-and-place gantries or packaging stations. By coupling the rotor to a precision drive and sending feedback to a matching controller, the unit converts electrical commands into repeatable rotary movement for industrial automation tasks. This arrangement allows the controller to correct motion in response to changing loads while maintaining the commanded speed or position.

The motor’s feedback circuit has a resolution of 2048 lines/rev and reports absolute shaft position through a Comcoder interface. The sensing element uses a single-turn optical design, so the controller receives a unique position value within each shaft revolution without relying on multi-turn counting. Signal formatting follows the EPC 15T protocol, allowing direct compatibility with suitable Kollmorgen drives. Electrical terminations use a special connector arrangement that simplifies machine wiring and keeps the power and feedback connections organized. The motor is supplied without a brake, which reduces axial length and rotor inertia when mechanical holding torque is not required during a powered-down state.

An alternative flange variant G gives the frame a mounting face that differs from the standard version, while the body has an 84 mm square width that fits within size 4 enclosures. The magnetic stack uses rotor length index 2, providing torque capacity for mid-range duties without unnecessary mass. Output power is transferred through a shaft machined with a keyway, ensuring positive engagement with couplings or pulleys and reducing the likelihood of rotational slip under load. The motor also uses a special winding that adjusts the voltage constant for drives operating at nonstandard DC bus levels. These mounting, shaft, and winding characteristics support installation in equipment that requires a different mechanical interface or electrical configuration from the standard motor arrangement.

Brake System
Without brake
Connector Arrangement
Special Connector Arrangement
Feedback Resolution
2048 lines/rev
Feedback System
Comcoder
Feedback Turns
Single turn, optical
Feedback Type
EPC 15T
Flange Configuration
Alternative Flange Variant G
Frame Dimension
84mm
Product Family
AKM Synchronous Servo Motor
Rotor Length Index
2
Shaft Detail
Keyway
Winding Designation
Special Winding

Frequently Asked Questions about AKM42S-GCSN2-02:

Q: Does the AKM42S-GCSN2-02 motor include an integrated brake?

A: This model is manufactured without a brake system.

Q: What kind of connector arrangement does the AKM42S-GCSN2-02 use?

A: The AKM42S-GCSN2-02 has a special connector arrangement distinct from standard models.

Q: What type of feedback system and resolution does the AKM42S-GCSN2-02 servo motor provide?

A: The motor is equipped with a Comcoder feedback system featuring 2048 lines per revolution of resolution.

Q: What type of feedback turns does the AKM42S-GCSN2-02 support?

A: A single turn, optical feedback is included on this model.

Q: What are the frame dimension and shaft detail for the AKM42S-GCSN2-02 servo motor?

A: This motor features an 84mm frame dimension and includes a keyway on the shaft.

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