Whether built in or added on – our encoder systems ensure your motors respond accurately to commands from your drive electronics with precision. Positioning, speed control and torque control, including in functionally safe technology, are just a few of the reasons why you should use our encoders.
Encoders: Easily implement drive control tasks
The optimum interaction of the individual system components is particularly important in applications with control tasks. Motors in particular must respond to commands from the drive electronics with precision. We can supply you with the necessary encoder systems.
They ensure the system can identify a position or a change in position and feed this back to the drive electronics. With absolute encoders, you save valuable time during plant initialization.
Our large selection of encoders enables you to control your drive and therefore your plant according to your requirements:
- Built-in encoders (perfectly integrated into the motor without adding to its length) or add-on encoders (with numerous electrical interfaces available)
- Incremental encoders for feeding back a change in position with the standard electrical interfaces TTL (transistor-transistor-logic), HTL (high-voltage-transistor-logic) and SinCos (SineCosine)
- Single and multi-turn absolute encoders for feeding back an absolute angular position with the standard electrical interfaces Hiperface® or SinCos combined with SSI (synchronous-serial interface) or RS485
- Encoders with an additional or fully digital interface (e.g. SinCos incremental encoders or absolute encoders) are delivered with an electronic nameplate completed by SEW-EURODRIVE for simple, safe, convenient and rapid startup.
Ability classes
Ability classes are used to identify the functionality of the encoder system, irrespective of the drive system involved. These classes are the Basic Class, Medium Class, and High Class. This makes it possible to find the perfect solution to fit your drive task.
Find the correct encoder for your motor here.
| Encoder system ability classes | |||
|---|---|---|---|
| Basic Class | Medium Class | High Class | |
| Basic abilities | Speed monitoring simple positioning |
Basic Class abilities |
Medium Class abilities |
| Speed control | – | Medium dynamics, medium speed and torque noise |
Highest dynamics, minimum speed and torque noise |
| Position control | – | High resolution good precision |
Highest resolution, maximum precision |
| Control mode | – | CFC, VFC | CFC |
Consult our sales team.
- Our experts know your industry and its requirements.
- Our global network ensures we are there wherever and whenever you need us.
- We have the expertise and tools to provide optimum advice and support.
Your benefits
- Whatever applications you intend to use our drives for, whatever electronics the speed feedback from the drives is to be linked up to, xxx from our diverse range of encoders.
- Do you need speed, torque or positioning control? We can implement your requirements with our incremental and absolute encoders.
- Would you like to reduce the outlay associated with connections? Single-cable technologies such as MOVILINK® DDI are the solution you need.
- The electronic nameplates integrated into the sine and absolute encoders enable simple startup.
- Encoders with MOVILINK® DDI interfaces automatically take care of the data exchange in seconds and reduce the startup procedure to system-specific adjustments and optimizations.
Built-in encoder
Features
For asynchronous motors
The built-in encoders for DR.. series asynchronous motors are unique. They are available in Basic Class and Medium Class and are perfectly integrated into the motor. This means that encoder mounting does not add additional length to the motor.
For example, if you use a MOVITRAC® standard inverter with the "Simple positioning" application module, you can successfully implement applications that would have previously required rapid/creep speed switching with initiator evaluation.
For synchronous motors
Built-in encoders are very beneficial when used in our synchronous motors from the CMP.. and CM3C.. series, too. When combined with our single-cable-capable MOVILINK® DDI interface and the MOVI-C® modular automation system, it is possible to both integrate the encoder perfectly into the motors and digitalize the drive. For example, it only takes seconds for the drive on the inverter to start up automatically. Alongside the encoder, the condition monitoring functions of the drive are also digitalized.
Advantages
- Do you require positioning feedback but have limited space or restrictions on the length of the drive? Our built-in encoders are the perfect solution. They are integrated into the drive without adding to its length or creating additional awkward contours.
- If the drive needs two different encoder information systems to meet special functional safety requirements in the machine or plant, you can combine our built-in encoders with add-on encoders in a single drive.
- You can synchronize drive units mechanically via the second shaft end of the driving motors, meaning the built-in encoders can now be used to achieve position feedback without having to redesign the placement of the drives within the machine or system.
- Built-in encoders do not require any complicated service or maintenance, as wear-free, magnetic measuring processes are used.
Add-on encoder
Features
Add-on encoders are encoder systems that SEW-EURODRIVE purchases from renowned manufacturers. They meet our requirements in terms of performance, precision and standardization in full.
They are available for all series of asynchronous motors, synchronous motors and linear motors.
Add-on encoders are always used when various electrical interfaces in our modular system are to be available on an overarching basis and when special features such as explosion protection and functional safety must be ensured.
Just like our built-in encoders, add-on encoders can be flexibly combined with our frequency inverters and controllers. As a result, the SEW-EURODRIVE modular system provides a quick solution for your requirements.
Advantages
- We can meet your need for various signal interfaces for connecting electronics via our standardized mechanical attachment of encoders from renowned manufacturers.
- We offer the interfaces required (SinCos, TTL, HTL, SSI, Hiperface®, Hiperface DSL®, EnDat2.2) as incremental, single-turn or multi-turn absolute encoders for asynchronous motors in the sizes 71 to 315 and synchronous motors in the sizes 40 to 112.
- If you would like to be able to have a specific encoder from a manufacturer of your choice delivered or attach it to our drives? We offer almost every mechanical interface and fastening type for a whole range of encoders. Naturally, the attachment of third-party encoders is also possible as a special solution.
Encoder systems
for asynchronous motors
Built-in encoder
| EI71 | EI72 | EI76 | EI7C | EI8R | EI8C | EI8Z | |
|---|---|---|---|---|---|---|---|
| Motor | DRN../DR2. 63 (EI7C only), 71 - 132S |
DRN../DR2. 71 - 132S |
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| Frequency inverter |
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| Ability class | Basic Class | Medium Class | |||||
| Encoder type | Incremental | ||||||
| Analog resolution, incremental periods/revolution increments/revolution |
1 4 |
2 8 |
6 24 |
24 96 |
1024 4096 |
12 bit |
|
| Electrical interface | HTL | TTL | HTL | MOVILINK® DDI, external to motor | |||
| Connection technology | M12 connection unit (terminal strip) |
M23 connection unit |
Single-cable technology: M23/M40 direct hybrid plug (power and data) Terminal box with hybrid plug or cable gland |
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| Electronic nameplate and automatic startup | - | Yes | |||||
| Functional safety | - | - | - | SIL, PLd | - | - | - |
Add-on encoder
| EK8C, EV8C | EK8R, EV8R | EK8S, EV8S | AK8H, AV8H | AK8Y, AV8Y | AK8W, AV8W | |
|---|---|---|---|---|---|---|
| Motor | DRN../DR2. 71 - 315* | |||||
| Frequency inverter |
|
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| Ability class | Medium Class | High Class | ||||
| Encoder type | Incremental | Multi-turn | ||||
| Analog resolution, incremental periods/revolution increments/revolution |
1024 4096 |
2048 8192 |
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| Digital resolution, absolute single-turn |
- | - | - | 15 bit | 12 bit | 16 bit |
| Digital resolution, absolute multi-turn |
- | - | - | 12 bit | 12 bit | 16 bit |
| Electrical interface | HTL | TTL | SinCos + RS485 | HIPFERFACE® (SinCos + RS485) |
SinCos + SSI | SEW-EURODRIVE SinCos + RS485 |
| Connection technology |
|
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| Electronic nameplate and automatic startup | - | - | Yes | Yes | - | Yes |
| Functional safety | - | - | SIL2, PLd | - | SIL2, PLd | SIL2, PLd |
| Explosion protection 2014/34/EU (ATEX) / IECEx |
II3GD (3GD, 3G, 3D) / EPL –c (GDc, Gc, Dc) | - | II3GD (3GD, 3G, 3D) / EPL –c (GDc, Gc, Dc) |
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The newly developed encoder with cone shaft for our asynchronous motors of the DRN../DR2. series replace the previous types:
| Type | Substitute for |
|---|---|
| EI8R/EK8R | ES7R, EG7R, EH7R |
| EI8C/EK8C | ES7C, EG7C, EH7C |
| EK8S | ES7S, EG7S, EH7S |
| AK8W | AS7W, AG7W |
| AK8Y | AS7Y, AG7Y, AH7Y |
| AK8H | AS3H, AS4H, AS7H |
Special solution
Have you been unable to find an encoder to meet your requirements? There are numerous options for your application when it comes to mounting, signals and precision. Feel free to contact us!
Type code
| E | I | 7 | C |
|---|---|---|---|
| Encoder type | Mounting/shaft | Generation | Signal type |
| A Multi-turn absolute encoder E Incremental encoder / single-turn encoder N Proximity encoder R Resolver X Special solution |
F Positive G Plug-in shaft H Hollow shaft I Integrated K Cone shaft L Linear encoder S Spread shaft V Solid shaft Z Shaft-centered |
0 – 8 | A Mounting adapter design C U=DC 4.75 (9)-30 V, HTL or TTL E EnDat H Hiperface® J Hiperface® DSL® R U=DC 7 (9)-30 V, TTL S U=DC 7 (9)-30 V, Sin/Cos 1 Vss T U=DC 5V, TTL W U=DC 7-30 V, RS485, Sin/Cos 1Vss Y SSI (synchronous serial interface) Z MOVILINK® DDI |
For synchronous motors
Built-in encoder
| EZ2Z | AZ2Z | EZ4Z* | AZ4Z* | AZ1Z | AZ3Z* | |
|---|---|---|---|---|---|---|
| Motor | CMP.. CM3C.. |
CMP.. CM3C.. |
CMP.. CM3C.. |
CMP.. CM3C.. |
MOVIGEAR® | |
| Frequency inverter |
|
|
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| Ability classes | Medium Class | High Class | Medium Class | High Class | ||
| Encoder type | Single-turn | Multi-turn | Single-turn | Multi-turn | ||
| Digital resolution, absolute single-turn |
12 bit | 18 bit | 12 bit | 18 bit | ||
| Digital resolution, absolute multi-turn |
- | 16 bit | - | 16 bit | ||
| Electrical interface | MOVILINK® DDI, external to motor |
MOVILINK® DDI, integrated into device | ||||
| Connection technology | Single-cable technology:
|
Integrated | ||||
| Electronic nameplate and automatic startup | Yes | |||||
| Functional safety | - | - | SIL2, PLd | - | SIL2, PLd | |
|
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Add-on encoder
| RH1M | EK0H | AK0H | EH0E / EH1E | AH0E / AH1E | EK0J | AK0J | |
|---|---|---|---|---|---|---|---|
| Motor | CMP.. CM3C.. |
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| Frequency inverter |
|
|
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| Ability class | Medium Class | High Class | |||||
| Encoder type | Single-turn | Multi-turn | Single-turn | Multi-turn | Single-turn | Multi-turn | |
| Analog resolution, incremental |
1 period/rev. modulated |
128 SinCos period/rev. |
128 SinCos period/rev. |
- | - | - | - |
| Digital resolution, absolute single-turn |
- | 12 bit | 19 bit | 20 bit | |||
| Digital resolution, absolute multi-turn |
- | - | 12 bit | - | 12 bit | - | 12 bit |
| Electrical interface | SinCos, modulated |
HIPFERFACE® (SinCos + RS458) |
EnDat2.2 | HIPFERFACE® DSL | |||
| Connection technology | Two-cable technology: M23 direct data plug + M23/M40/M58 power plug Terminal box with data plug or cable gland |
Single-cable technology: M23/M40 direct hybrid plug (power and data) |
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| Electronic nameplate and automatic startup | - | Yes | |||||
| Functional safety | - | SIL2, PLd | - | SIL2, PLd | - | SIL2, PLd | |
| Explosion protection 2014/34/EU (ATEX) / IECEx |
II3GD | - | |||||
Special solution
Have you not found an encoder to meet your requirements? There are numerous options for your application when it comes to mounting, signals and precision. Feel free to contact us!
Type code
| E | I | 7 | C |
|---|---|---|---|
| Encoder type | Mounting/shaft | Generation | Signal type |
| E Incremental encoder / single-turn A Absolute encoder N Proximity encoder R Resolver X Special solution |
F Positive S Spread shaft G Plug-in shaft I Integrated V Solid shaft H Hollow shaft K Cone shaft L Linear encoder |
0 – 8 | H HIPERFACE Y SSI (synchronous serial interface) T U=DC 5V, TTL A Mounting adapter design C U=DC 4.75 (9)-30 V, HTL or TTL S U=DC 7 (9)-30 V, Sin/Cos 1 Vss R U=DC 7 (9)-30 V, TTL W U=DC 7-30 V, RS485, Sin/Cos 1Vss |
For linear motors
Built-in encoder
| NL16 | EL3Z* | |
|---|---|---|
| Motor | SLC | |
| Frequency inverter | MOVIDRIVE® compact MCV40 |
|
| Ability class | Basic Class | Medium Class |
| Encoder type | Incremental | Linear absolute |
| Encoder sensors | Magnetic, scanning of secondary motor parts | |
| Analog resolution, incremental | 60 increments/m | - |
| Digital resolution, absolute linear |
- | 1 increment/1 mm (absolute distance 10 cm) |
| Electrical interface | TTL, 3×120° | MOVILINK® DDI |
| Connection technology | M12 | M23 plug connector |
| Electronic nameplate and automatic startup | - | Yes |
|
||
Add-on encoder
| AL1H | AL2H | |
|---|---|---|
| Motor | SL2 synchronous linear servomotors | |
| Frequency inverter |
|
|
| Ability class | High Class | |
| Encoder type | Linear absolute | |
| Analog resolution, incremental |
1 SinCos period/5 mm | 1 SinCos period/1 mm |
| Digital resolution, absolute linear |
1 increment/156.25 µm (absolute distance 40 m) |
1 increment/0.244 µm (absolute distance 4 m) |
| Electrical interface | HIPERFACE® (SinCos+RS485) | |
| Connection technology | M23 | M12 |
| Electronic nameplate and automatic startup | Yes | Yes |
Special solution
Have you not found an encoder to meet your requirements? There are numerous options for your application when it comes to mounting, signals and precision. Feel free to contact us!
Type code
| E | I | 7 | C |
|---|---|---|---|
| Encoder type | Mounting/shaft | Generation | Signal type |
| E Incremental encoder / single-turn A Absolute encoder N Proximity encoder R Resolver X Special solution |
F Positive S Spread shaft G Plug-in shaft I Integrated V Solid shaft H Hollow shaft K Cone shaft L Linear encoder |
0 – 8 | H HIPERFACE Y SSI (synchronous serial interface) T U=DC 5V, TTL A Mounting adapter design C U=DC 4.75 (9)-30 V, HTL or TTL S U=DC 7 (9)-30 V, Sin/Cos 1 Vss R U=DC 7 (9)-30 V, TTL W U=DC 7-30 V, RS485, Sin/Cos 1Vss |