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AKM
This page covers AKM, AKM Washdown, and AKM Washdown Food Grade motors. This motor series can be used for high dynamic and high precision applications. The motors are high performance and run extremely smooth. They offer multiple connector and feedback options.
AKM motors are available in 8 sizes, while the Washdown and Food Grade variants are available in 5 sizes.
Technical data of all available motor windings can be found in the motor manual on page AKM PDF Archive. Technical data of the built-in holding brakes are on page Holding Brake.
Available Feedback Systems
| Code | Feedback | Remarks |
|---|---|---|
| 1-/2- | Comcoder | 1024 / 2048 lines, single turn |
| AA/AB | BiSS B | single turn / multi turn |
| C- | SFD | single turn, for AKD drives only |
| CA | SFD3 | single turn, for AKD and S300/S700 drives only |
| DA/DB | EnDAT 2.1 | single turn / multi turn |
| LA/LB | EnDAT 2.1 | single turn / multi turn |
| MA/MB | DRIVE-CLiQ | single turn / multi turn, thermal sensor according to current Siemens requirements, for Siemens drives only |
| GA/GB | Hiperface | single turn / multi turn, optical, for S |
| GC/GD | Hiperface | single turn / multi turn, capacitive, for S |
| GE/GF | Hiperface DSL | single turn / multi turn, optical, for AKD and S300/S700 drives, AKM2-6 |
| GJ/GK | Hiperface | single turn / multi turn, optical, for AKD drives, AKM2-8 |
| GM/GN | Safety Hiperface | single turn / multi turn, optical, with PTC thermal sensor only, for AKD drives, AKM2-8, Datasheet, SIL2/PLd/CAT/3 Certificate |
| GP/GR | Hiperface | single turn / multi turn, capacitive, for AKD drives, AKM1 |
| R- | Resolver | single turn |
For more details, see MultiFeedback
Washdown & Food Grade Information
AKM versions "W" (Washdown) and "F" (Washdown Food) are resistant against industrial cleaners.
The part number scheme defines the coating of the motor housing (type "W" for Washdown and "F" for Washdown Food) in the "Customization" code (last two digits) and the flange coating separated.
Part Numbers:
| AKMzzz-yyyyy-0W | Washdown with unpainted flange |
| AKMzzz-Wyyyy-0W | Washdown with painted IEC A flange |
| AKMzzz-yyyyy-0F | Washdown Food with unpainted flange |
| AKMzzz-Wyyyy-0F | Washdown Food with painted IEC A flange |
Certificates of the test laboratory Ecolob Deutschland GmbH:
Washdown
| Target Market | Rough environment, outside use. For example: transport in food and beverage industry without contact to beverage/food, radar&network stations, wind turbines, naval applications |
|---|---|
| Standards | UL, CE, EAC, RohS |
| Surface | Gray 2K paint |
| Resistancy | Against tested cleaning agents (see Test Report ), corrosion resistant |
| Protection class | IP67 |
| Shaft | stainless steel (EN 1.4305 / AISI 303) |
| Shaft seal | PTFE |
| Lubricant | industrial lubricant for bearings, not suitable for food stuff |
| Connectors | stainless steel, flat surface |
| Screws | Stainless Steel |
| Size | AKM2, 3, 4, 6 all flange types, AKM5 with Nema flange "B" only |
Washdown Food
| Target Market | food and beverage industry, no direct contact to food. For example: slicing, packaging and filling without direct contact to food or beverage. Motor below or beside the food. |
|---|---|
| Standards | UL, CE, EAC, RohS, FDA |
| Surface | White 2K paint. The surface has passed all tests according to FDA Global Migration for indirect contact to food. A direct contact to food is not allowed. |
| Resistancy | Against tested cleaning agents (see Test Report), corrosion resistant |
| Global Migration | Complies 21 CFR 175.300 of the US FDA Regulations, Condition of Use E (see Certificate) |
| Protection class | IP67 |
| Shaft | stainless steel (EN 1.4305 / AISI 303) |
| Shaft seal | PTFE |
| Lubricant | lubricant for bearings suitable for food stuff |
| Connectors | stainless steel, flat surface |
| Screws | Stainless Steel |
| Name Plate | Engraved, additional name plate in the package |
| Size | AKM2, 3, 4, 6 all flange types, AKM5 with Nema flange "B" only |
Application Notes
Further Information
| Trade Compliance | English | 
Bethany… |
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| Grounding and Shielding Landing Page (Prevent Noise Issues) | English |  Ann Pater |
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| Speedtec Cable Notice (O-Ring) | English | 
Will… |
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| Mean Time Between Failure AKD AKM Gen 1 | English | JohnKeesee |
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| Ingress Protection of Servo Motors | English | JohnKeesee |
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| Configurando Motores com Freio no Workbench | Portuguese, Brazil | 
Leonardo… |
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| Wiring Pin-Out For AKM with Commutating Encoder to B8000 Series Drives | English | 
Mark.… |
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| Resolver Based AKM Motors to CD Series Drives | English |
Mark.… |
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| Incremental Encoder AKM motors to CD Series Drives | English |
Mark.… |
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. |
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 |
See page Synchronism.
That is an AKM72M (480V). A list of all motor numbers can be found in the Motor Database, available from the Downloads page.
See page Four Quadrant Operation.
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.
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.
See the Reference table.
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.