• 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.
 Contact us now
Your benefits

Which applications do you want to implement with our drives?
From the wide range of encoders available, you will always find the right type with the right interface for every application.

Do you need speed or torque or position cont
Our incremental or absolute encoders meet your requirements.

Would you like to reduce the outlay associated with connections?
Single-cable technologies such as MOVILINK® DDI are the solution you need.

Would you like to make your start-up easier?
The electronic nameplates integrated in the sine and absolute encoders allow for simple startup.

Do you value fast and automatic data exchange?
Encoders with MOVILINK® DDI interfaces automatically take care of the data exchange in seconds and reduce the startup procedure to system-specific adjustments and optimisations.

Ability classes

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.

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.

These encoders 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 initialisation.

 Encoders: Easily implement drive control tasks

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
Explosion protection No Yes Yes
Functional safety Yes Yes Yes
Contact form Worldwide locations Locations in the UK Built-in encoder
  EI71 EI72 EI76 EI7C EI8R EI8C EI8Z
Motor DRN../DR2../DRU..
63 (EI7C only), 71 - 132S 		DRN../DR2../DRU..
71 - 132S
Frequency inverter
  • MOVITRAC®, MOVITRAC® B, MOVIDRIVE® B, MOVIAXIS®, MOVIFIT®,
    MOVIPRO®, MOVIMOT®
  • MOVI-C®: MOVIDRIVE® and MOVITRAC® control cabinet devices and MOVIMOT® decentralised technology
  • Third-party inverter
  • MOVI-C®: MOVIDRIVE® and MOVITRAC® control cabinet devices and MOVIMOT® decentralised technology
Ability class Basic Class Medium Class
Encoder type Incremental
Analogue resolution,
incremental
periods/revolution
increments/revolution

1
4

2
8

6
24

24
96

1024
4096

–
Digital resolution, incremental – – – – – – 12 bit
Electrical interface HTL TTL HTL MOVILINK® DDI, external to motor
Connection technology Prefabricated cables from SEW-EURODRIVE available for:
  • M12 on terminal box including temperature sensor (pluggable)
  • Terminal strip in terminal box including temperature sensor (can be preassembled in the field)










 Prefabricated cables from SEW-EURODRIVE available for:
  • M23 on terminal box including temperature sensor (pluggable)
  • Terminal strip in terminal box including temperature sensor (can be preassembled in the field)




 Single-cable technology, prefabricated cables from SEW-EURODRIVE available for:
  • Direct hybrid plug (power and data) M23/M40
  • Or terminal box with hybrid connector or cable gland
Electronic nameplate and automatic startup – Yes
Functional safety – – – SIL2, PLd – – –
Add-on encoder
  EK8C, EV8C EK8R, EV8R EK8S, EV8S AK8H, AV8H AK8Y, AV8Y AK8W, AV8W RK8M
Motor DRN../DR2. 71 - 355* DRN../DR2../DRU..
Frequency inverter
  • MOVIDRIVE® B, MOVIAXIS®, MOVIPRO®
  • MOVI-C®: MOVIDRIVE® and MOVITRAC® control cabinet devices and MOVIMOT® decentralised technology
  • Third-party inverter (EK8S, AK8W limited)
  • MOVI-C®: MOVIDRIVE® control cabinet devices
  • Third-party inverter
Ability class Medium Class High Class Medium Class
Encoder type Incremental Multi-turn Resolver, 2-pin
Analogue resolution,
incremental
periods/revolution
increments/revolution

1024
4096

2048
8192

Single-turn
4096
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 		Resolver, modulated
Connection technology Prefabricated cables from SEW-EURODRIVE available for the following connection options:
  • Integrated encoder plug connector on the encoder cover or on the back of the encoder cover with and without mating connector (can be preassembled in the field, pluggable)
  • M23 on terminal box including temperature sensor (pluggable)
  • Terminal strip in terminal box including temperature sensor (can be preassembled in the field)
  • M23 with short cable directly on the encoder (pluggable)
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) 		–

In the pipeline: 63

 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
RK8M – (new)
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 HTL or TTL (Supply: 4.75 – 30 V)
E EnDat2.1 /EnDat2.2
H HIPERFACE®
J HIPERFACE DSL®
Q DRIVE-CliQ
R TTL (Supply: 7 – 30 V)
S U=Sin/Cos 1 Vss (Supply: 7 – 30 V)
W U=Sin/Cos 1 Vss + RS485 (Supply: 7 – 30 V)
Y U=Sin/Cos 1 Vss + SSI (Supply: 7 – 30 V)
Z MOVILINK® DDI
Built-in encoder
  EZ2Z AZ2Z EZ4Z AZ4Z AZ1Z
Motor CMP..
CM3C.. 		CMP..
CM3C.. 		CMP..
CM3C.. 		CMP..
CM3C.. 		MOVIGEAR®
Frequency inverter
  • MOVI-C®: MOVIDRIVE® and MOVITRAC® control cabinet devices
  • MOVI-C®: MOVIMOT® decentralised technology
  • MOVI-C® MOVIGEAR®
Ability classes Medium Class High Class Medium Class
Encoder type Single-turn Multi-turn Single-turn Multi-turn
Digital resolution,
absolute single-turn 		12 bit 18 bit 12 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:
  • M23/M40 direct hybrid plug (power and data)
  • Terminal box with hybrid plug or cable gland

Two-cable technology:
  • M23 direct data plug + M23/M40/M58 power plug
  • Terminal box with data and power plug or cable gland
 Integrated
Electronic nameplate and automatic startup Yes
Functional safety – – SIL2, PLd –
Add-on encoder
  RH1M EK0H AK0H EH0E / EH1E AH0E / AH1E EK0J* AK0J*
Motor CMP..
CM3C..
Frequency inverter
  • MOVIDRIVE® B, MOVIAXIS®, MOVIPRO®
  • MOVI-C®: MOVIDRIVE® control cabinet devices and MOVIMOT® decentralised technology
  • Third-party inverter
  • Third-party inverter
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)

Electronic nameplate and automatic startup – Yes
Functional safety – SIL2, PLd – SIL2, PLd – SIL2, PLd
Explosion protection
2014/34/EU (ATEX) / IECEx 		II3GD –

* On request

 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
A Multi-turn absolute encoder
E Incremental encoder / single-turn
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-centric
 0 – 8 A Mounting adapter design
C U=DC 4.75 (9)-30 V, HTL or TTL
E EnDat2.1 /EnDat2.2
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 1 Vss
Y SSI (synchronous serial interface)
Z MOVILINK® DDI
Built-in encoder
  EL3Z*
Motor SLC
Frequency inverter
  • MOVI-C®: MOVIDRIVE® and MOVITRAC® control cabinet devices
  • MOVI-C®: MOVIMOT® decentralized technology
Ability class Medium Class
Encoder type Linear absolute
Encoder sensors Magnetic, scanning of secondary motor parts
Analog resolution, incremental –
Digital resolution,
absolute linear 		1 increment/1 mm
(absolute distance 10 cm)
Electrical interface MOVILINK® DDI
Connection technology M23 plug connector
Electronic nameplate and automatic startup Yes

* In the pipeline

 Add-on encoder
  AL1H1 AL2H1 AL3H2 AL3Y2
Motor SL2 synchronous linear servomotors
Frequency inverter
  • MOVIDRIVE® B, MOVIAXIS®, MOVIPRO®
  • MOVI-C®: MOVIDRIVE® control cabinet devices
  • MOVI-C®: MOVIDRIVE® control cabinet devices
Ability class High Class
Encoder type Linear absolute
Analog resolution,
incremental 		1 SinCos period/5 mm 1 SinCos period/1 mm 1 SinCos period/2 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) 		1 increment/0.448 µm
(absolute distance 16.38 m) 		1 increment/1 µm
(absolute distance 48 m)
Electrical interface HIPERFACE® (SinCos+RS485)
Connection technology M23 M12 M23 M23
Electronic nameplate and automatic startup Yes Yes Yes Yes

1 In phase-out phase

2 In the pipeline

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
A Multi-turn absolute encoder
E Incremental encoder / single-turn
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 EnDat2.1 /EnDat2.2
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 5 V, TTL
W U=DC 7-30 V, RS485, Sin/Cos 1 Vss
Y SSI (synchronous serial interface)
Z MOVILINK® DDI

Add-on encoders are encoder systems that SEW-EURODRIVE purchases from renowned manufacturers. They meet our requirements in terms of performance, precision and standardisation 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.
  • We can meet your need for various signal interfaces for connecting electronics via our standardised 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.
 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® advanced standard inverter, 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 digitalise 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 digitalised.
  • 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 and use 2 encoders simultaneously.
  • You can synchronise 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 and are very robust, as wear-free, magnetic measuring processes are used.