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AKM12C-ANCNR-00 Kollmorgen

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The Kollmorgen AKM12C-ANCNR-00 is part of the AKM Synchronous Servo Motors series and has a frame dimension of 40 mm. This standard model includes a smooth shaft, a resolver feedback system with 2 poles, and IEC flange configuration. The connector arrangement uses 2 SpeedTec Ready connectors and the motor does not have a brake system.

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Product Description:

The AKM12C-ANCNR-00 is a synchronous servo motor produced by Kollmorgen within the AKM Synchronous Servo Motors series. As a compact rotary actuator, it delivers closed-loop torque and speed control for positioning axes and coordinated motion stages in automated assembly, packaging, and material-handling equipment. The model is part of Kollmorgen’s modular platform, giving machine builders a predefined mix of frame sizes, rotor lengths, and windings to simplify drive selection while meeting specific inertia and duty-cycle targets.

An IEC flange with accuracy class N lets the motor bolt directly to gearboxes or machine plates without alignment shims, while the 40 mm frame dimension keeps the footprint small enough for closely packed multi-axis systems. Power and feedback leave the housing through 2 SpeedTec Ready connectors, a keyed design that speeds installation and helps prevent miswiring. Separate power and feedback exits keep cable routing organized in tight enclosures. The output shaft is supplied as a smooth shaft, allowing couplings or pulleys to be clamped with minimal runout. Because the unit is configured without a brake, any required holding torque must be supplied by the drive or by an external mechanical lock when power is removed.

Motion feedback relies on a resolver, chosen for its wide temperature range and absolute position reporting. In this model, the feedback system uses single-turn inductive measurement, so the controller receives absolute rotor angle over one revolution without additional multi-turn gearing. Electrical resolution is limited to 2 poles, a configuration that balances dynamic response with manageable current ripple in compact drives. This arrangement suits compact control systems that need stable commutation feedback without excessive signal processing overhead. Internal copper uses winding designation C, which sets the back-EMF constant to match Kollmorgen’s intended drive voltage for medium-speed applications. The motor also uses rotor length index 2 and the standard customization level.

Brake System
Without brake
Connector Arrangement
2 SpeedTec Ready connectors
Customization Level
Standard
Feedback Resolution
2 poles
Feedback System
Resolver
Feedback Turns
Single turn, inductive
Feedback Type
Size 10/15/21
Flange Configuration
IEC with accuracy N
Frame Dimension
40mm
Product Family
AKM Synchronous Servo Motor
Rotor Length Index
2
Shaft Detail
Smooth Shaft
Winding Designation
C
  • AKM-12C-ANCNR-00
  • AKM12C-ANCNR-OO
Troubleshooting error  Likely cause(s) Recommended corrective action
Motor doesn’t rotate Servo amplifier not enabled; open set-point lead; phase sequence wrong; brake not released; mechanical blockage  Supply ENABLE, repair set-point wiring, correct phase order, release brake, clear mechanical jam
Motor runs away Phase sequence reversed Swap two motor phase leads to restore correct rotation sense
Motor oscillates Broken resolver-cable shield; drive gain set too high Replace/repair resolver cable; revert to motor default tuning values
Brake fault (error message: “brake”) Short in brake supply; holding-brake coil defective Remove short; replace brake or entire motor if coil damaged
Output-stage fault Motor-cable short or earth-fault; winding short inside motor Replace motor power cable; test motor windings and replace/rewind if shorted
Resolver error Resolver plug loose; resolver cable broken/crushed Reseat connector; repair or replace resolver cable
Motor-temperature warning Thermostat tripped (overload/poor cooling); resolver connector loose Allow cooldown; check ambient load and cooling; secure connector
Brake does not grip Holding-torque demand exceeds brake rating; brake worn/failed; excessive axial shaft load Verify sizing, replace brake/motor, reduce axial load to protect bearings
Motor overheated Continuous high duty-cycle or ambient heat exceeds thermal capacity Improve ventilation/heat-sink contact, lower load or duty cycle, reset drive fault
Over-speed fault Commanded velocity above VL.THRESH limit; aggressive trajectory/tuning Raise VL.THRESH to rated speed or reduce speed command; retune motion profile
Model Feedback Device Shaft Type Shaft Seal Continuous Torque (Nm) Peak Torque (Nm) Max Speed (rpm) Bus Voltage (VDC) / Operating Voltage Weight (kg)
AKM12C-ANCNR-00 2-Pin Hollow Shaft Resolver Smooth No 0.31 1.46 8000 320 VDC 0.49
AKM12C-ANCNC-00 Smart Feedback Device (resolver‐compatible) Smooth No 0.31 1.46 8000 320 VDC 0.49
AKM12C-ANMN2-00 Comcoder (2048 PPR) Smooth No 0.31 1.46 8000 320 VDC  0.49
AKM12C-SSSNR-03 Quadrature Encoder Smooth Yes 0.31 1.08 8000 240 VAC 0.49
AKM12C-ANCNC-01 Smart Feedback Device Smooth Yes 0.31 1.46 8000 320 VDC  0.49
AKM12C-AKCNC-00 Smart Feedback Device (SFD, 24-bit) Open Keyway No 0.31 1.46 8000 320 VDC  0.49
Fault Code Display Message
F301 Motor overheated
F302 Over-speed
F303 Runaway
F419 Encoder init procedure failed
F426 Resolver error
F501 Bus over-voltage
F525 Output over-current
F534 Failed to read motor parameters
F602 Safe Torque Off active
F701 Fieldbus runtime fault

Frequently Asked Questions about AKM12C-ANCNR-00:

Q: Does the AKM12C-ANCNR-00 motor come equipped with a brake system?

A: The AKM12C-ANCNR-00 servo motor does not include an integrated brake system.

Q: What type of connector arrangement is included on the AKM12C-ANCNR-00?

A: This motor features two SpeedTec Ready connectors for straightforward electrical connectivity.

Q: What feedback system does the AKM12C-ANCNR-00 utilize?

A: A resolver system is used for feedback, with a single-turn inductive mechanism on this model.

Q: What is the frame dimension of the AKM12C-ANCNR-00 servo motor?

A: The frame of this servo motor has a dimension of 40mm for compact installations.

Q: What type of shaft detail is provided with the AKM12C-ANCNR-00?

A: The shaft is smooth, allowing for direct coupling to compatible mechanical systems.


Internal Product Review

  • ‘‘The AKM12C-ANCNR-00 is a Kollmorgen AKM synchronous servo motor with an IEC flange configuration and a smooth shaft. Resolver feedback with single-turn inductive operation supports dependable position sensing in motion applications. Two SpeedTec Ready connectors and a brake-free design make this motor a clean, efficient choice for streamlined servo integration.’’

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