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Kollmorgen Support Network


Application area for these motors is the food and beverage industry, without direct contact with unpacked foodstuffs, according to EN 1672-5.3.2. Applications can be cutting, packing and filling without direct contact with foodstuffs. The motor should be placed laterally or below the food. The motors can be mounted to the linear actuators ERD.

Motors can be ordered with cables or with connectors, both meeting IP69K. For applications where hygiene is critical, we recommend our cable version.

  • The one cable solution supports digital feedback system SFD3, and HIPERFACE DSL.
  • The two cable solution is necessary for support of Resolver, Comcoder, HIPERFACE, and ENDAT feedbacks.

Part Number Scheme (US)
Part Number Scheme (EU)

Technical Data

  • Technical data of all available motor windings can be found in the motor manual.
  • Technical data of the built-in holding brakes are on page Holding Brake.

Resistancy Against Cleaners

AKMH surface is resistant against industrial cleaners.

Standards:  UL, CE, RohS
according to DIN EN ISO 14159 and DIN EN 1672-2
Surface:  Stainless steel 1.4404, roughness less than 0.8µm  
Resistancy:  Against tested cleaning agents, corrosion resistant Test Report
Protection class:   IP69K  
Screws: Stainless steel 1.4404, Silicone seal FDA 21 CFR 175.300 FDA Material List
O-Ring: EPDM, FDA 21 CFR 177.2600
Shaft:  Stainless steel 1.4404
Shaft seal:  Mineral filled PTFE, single lip,
mineral: FDA 21 CFR 175.300
PTFE: FDA 21 CFR 177.1500
Lubricant:  food-grade as per FDA 21 CFR 178.3570
Cable gland:  Stainless steel 1.4404, Silicone seal FDA 21 CFR 177.2600
Cable tube:  Silicone FDA 21 CFR 177.2600
Name plate: Laser marked in housing  
Size:  AKMH2 - AKMH6 

Additional Information

Trade Compliance English
Resolving Servo Feedback Choices English
Ingress Protection of Servo Motors English
AKMH Connectorized Version Introduction English
Eddie Yang
Linearaktuatoren German
Servoantrieb German
Servomotoren German
SFD German
NEMA Baugröße German
What commutation offset do Kollmorgen motors have?
DBL / DBK with Encoder Feedback has no defined commutation offset. The commutation offset is determined with the help of the servo amplifier and stored in the encoder memory.
AKM with Hiperface encoder Encoder is installed arbitrarily. The commutation offset is determined with the aid of the servo amplifier and stored in the encoder memory.
AKM with BiSS encoder Encoder is installed arbitrarily. Commutation offset is set to zero electronically.
AKM with EnDat encoder Commutation offset is mechanically set to zero.
What is the maximum value for motor temperature sensor (PTC)?

That depends on the servo amplifier that is used.

S300 5.0 kOhm
S400 2.0 kOhm
S600 1.6 kOhm
S700 5.0 kOhm
Which parameters affect synchronism of the servo motors?

See page Synchronism.

What motor is described by motor number 19071?

That is an AKM72M (480V). A list of all motor numbers can be found in the Motor Database, available from the Downloads page.

What is meant by four quadrant operation?
Is it possible to test a servomotor by connecting it directly to the main supply?

No, this is forbidden. Connecting a motor directly to the main supply will destroy the motor. Refer to the chapter "Use as directed" in the instructions manual.

Is it possible to suppress the motor cogging?

Yes, for the Servostar line it is possible with S300 and S700. See page Cogging Suppression for details. For AKD drive family the feature is available in firmware version 1.15 See Cogging Compensation for details.

I want to replace a 6SM servomotor with an AKM. What motor type is required?

See the Reference table.

I am experiencing positioning errors with AKM1 motors. What can I do?

Low rotor inertia is the source for this problem, ironless linear motors show a similar behavior.

Solution for drives with S300/S700 servo amplifiers:

Increase the bandwidth of the current control loop with the Smith Predictor (FILTMODE = 2). Refer to page Tuning: Delay Time Compensation with Smith Predictor.