Elgo EMAX Series User manual

Operating Manual

SERIES EMAX / EMAL

Magnetic Absolute Linear Encoder with 10 µm resolution

Absolute encoder with 10 µm resolution

No referencing required (changes of position

are also recognized in the de-energized state)

Wear free and contactless measurement

Measuring length up to 10 m (EMAX) resp. 20 m (EMAL)

Too large distances between sensor and magnetic tape

are automatically detected and signalized by an LED

Sensor with fixed cable outlet or optionally with

M9 round connector on sensor housing

Additional incremental or sine-cosine signals for

dynamic movement control available

Available interfaces: SSI, CANopen, RS422, RS232

New: IO-Link acc. to IEC 61131-9

799000616 / Rev. 14/ 2019-01-17

Translation of the original operating manual

- 2 -

Publisher

ELGO Electronic GmbH & Co. KG

Carl-Benz-Str. 1

D-78239 Rielasingen-Worblingen

Technical Support

+49 (0) 7731 9339 –0

+49 (0) 7731 2 13 11

[email protected]e

Document- No.

799000616

Document- Name

EMAX-EMAL-00-MA-E_03-19

Document- Revision

Rev. 14

Issue Date

2019-01-17

Contents

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1Contents

1Contents ............................................................................................. 3

2List of Figures:.................................................................................... 5

3List of Tables: ..................................................................................... 5

4General, Safety, Transport and Storage ........................................... 6

4.1 Information Operating Manual .............................................................................6

4.2 Explanation of Symbols ........................................................................................6

4.3 Statement of Warranties.......................................................................................7

4.4 Demounting and Disposal....................................................................................7

4.5 General Causes of Risk........................................................................................7

4.6 Personal Protective Equipment...............................................................................7

4.7 Conventional Use ...............................................................................................8

4.8 Safety Instructions for Transport, Unpacking and Loading ..........................................8

4.9 Handling of Packaging Material ............................................................................8

4.10 Inspection of Transport ........................................................................................8

4.11 Storage .............................................................................................................8

5Product Features ................................................................................ 9

5.1 Functional principle.............................................................................................9

6Technical Data ................................................................................. 10

6.1 Identification ....................................................................................................10

6.2 Dimensions Sensor Housing with Cable Outlet ......................................................10

6.3 Dimensions Sensor Housing with M9 round connector ............................................10

6.4 Dimensions Guide Carriage FW2080 ..................................................................11

6.5 Technical Data Sensor ....................................................................................... 12

6.6 Technical Data Magnetic Tape............................................................................13

7Installation and First Start-Up......................................................... 14

7.1 Operating Area ................................................................................................14

7.2 Installation of the Magnetic Tape......................................................................... 15

7.3 Installation of the Sensor .................................................................................... 18

7.4 Offset Calibration .............................................................................................19

8Interfaces ......................................................................................... 20

8.1 Interface SSI (option SB0 and SG0)......................................................................20

8.2 Interface CANopen (option CA0).........................................................................21

8.3 CAN BASIC ELGO (Option CN0)........................................................................22

8.4 Termination Resistor ..........................................................................................23

8.5 Interface RS422 (Option 420) & RS232 (Option 230).............................................24

8.6 RS422 Addressable Version (Option A20)............................................................. 25

8.7 Connection to a RS422 Master ...........................................................................27

8.8 IO-Link Interface...............................................................................................28

Contents

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9Optional Incremental Output .......................................................... 29

9.1 Incremental A/B Signals (TTL / HTL) ..................................................................... 29

9.2 Sine/Cosine Incremental Signals (Option SC50) ....................................................29

10 Pin Assignment ................................................................................ 30

10.1 Connections of Housing with fixed Cable Outlet ....................................................30

10.2 Connections of Housing with M9 Round Connector................................................ 36

11 Disturbances, Maintenance, Cleaning............................................. 37

11.1 Fault Clearance................................................................................................ 37

11.2 Re-start after Fault Clearance..............................................................................37

11.3 Maintenance.................................................................................................... 37

11.4 Cleaning .........................................................................................................37

12 Type Designation ............................................................................. 38

12.1 Example of available Variants .............................................................................39

12.2 Accessories ......................................................................................................39

13 Index ................................................................................................ 43

Contents

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2List of Figures:

Figure 1: Coding of the magnetic tape ....................................................................................................... 9

Figure 2: Dimensions of sensor with cable outlet ....................................................................................... 10

Figure 3: Dimensions of sensor with M9 round connector .......................................................................... 10

Figure 4: Dimensions of guide carriage FW2080 ...................................................................................... 11

Figure 5: Components of the magnetic tape ............................................................................................. 15

Figure 6: Handling ................................................................................................................................. 16

Figure 7: Tolerances ............................................................................................................................... 18

Figure 8: Mounting direction on magnetic tape ......................................................................................... 19

Figure 9: SSI - reading the data ............................................................................................................... 20

Figure 10: SSI - Gray / binary switchover ................................................................................................. 20

Figure 11: Bit rate and CAN identifier settings ........................................................................................... 21

Figure 12: Bit rate / address (option CN0) ................................................................................................ 22

Figure 13: Termination resistor ON / OFF ................................................................................................ 23

Figure 14: Set options on top of the housing ............................................................................................. 25

Figure 15: Connection to a RS422 Master ................................................................................................ 27

Figure 17: A/B - Inkrementalsignale (TTL / HTL) ........................................................................................ 29

Figure 18: Sine –Cosine Incremental Signals............................................................................................ 29

3List of Tables:

Table 1: Mounting tolerances .................................................................................................................. 18

Table 2: Bit rate and CAN-Identifier with option CA0................................................................................. 21

Table 3: Identifier Option CN0 ................................................................................................................ 22

Table 4: Bit rate and address settings (option CN0) .................................................................................. 22

Table 5: Bit rate RS422 (option420) and RS232 (option 230)..................................................................... 24

Table 6: Addressable RS422 Option A20 ................................................................................................. 25

Table 7: Error messages of an addressable EMAX / EMAL .......................................................................... 27

Table 8: Characteristics values for option SC50 ........................................................................................ 29

Table 9: Connections of SSI interface cable 1 ........................................................................................... 30

Table 10: Connections of SSI interface cable 2 ......................................................................................... 30

Table 11: Connections of SSI interface with option M8F0, 8-pin M16 round connector ................................ 30

Table 12: Connections of SSI interface with option MCM0, 12-pin M16 round connector ............................ 31

Table 13: Connections of SSI interface with option D9M0, 9-pin D-SUB connector ...................................... 31

Table 14: Connections of SSI interface Option M8M0, 8-pin M16 round connector..................................... 31

Table 15: Connections of CANopen interface (open cable ends) ................................................................ 32

Table 16: Connections of CANopen interface with option D9M, 9-pin D-SUB connector .............................. 32

Table 17: Connections of RS422 interface (open cable ends) ..................................................................... 33

Table 18: Connections of RS422 interface with option D9M0, 9-pin D-SUB connector ................................. 33

Table 19: Connection of RS422 interface option D9M5, 9-pin D-SUB connector ......................................... 33

Table 20: Connections of RS422 interface option M8M0, 8 pin M16 round connector................................. 34

Table 21: Connections of RS232 interface (open cable ends) ..................................................................... 34

Table 22: Connections of RS232 interface with option D9M0, 9-pin D-SUB connector ................................. 34

Table 23: Connections - cable outlet with 4-pin. M12 round connector ...................................................... 35

Table 24: Connections - open cable ends (standard) ................................................................................. 35

Table 25: Connections - 12-pin M12 round connector (RCM0) .................................................................. 35

Table 23: Connections of the 7-pin M9 round connector (male) ................................................................. 36

Table 24: Connections when using the DKA cable with open cable ends ..................................................... 36

Table 25: Connections IO-Link without cable / Table 26: Connections IO-Link with DKA cable .................... 36

Table 27: Example of available variants.................................................................................................... 39

Table 28: Accessories ............................................................................................................................. 39

General, Safety, Transport and Storage

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4General, Safety, Transport and Storage

4.1 Information Operating Manual

This manual contains important information regarding the handling of the device. For your own safety and operational safety, please ob-

serve all safety warnings and instructions. Precondition for safe operation is the compliance with the specified safety and handling instruc-

tions. Moreover, the existing local accident prevention regulations and the general safety rules at the site of operation have to be observed.

Please read the operating manual carefully before starting to work with the device! It is part of the product and should be kept close to the

device and accessible for the staff at any time. The illustrations in the manual are for better demonstration of the facts. They are not neces-

sarily to scale and can slightly differ from the actual design.

4.2 Explanation of Symbols

Special notes in this manual are characterized by symbols. The notes are introduced by signal words which express the magnitude of danger.

Please follow this advice and act carefully in order to avoid accidents, damage, and injuries.

Warning notes:

DANGER!

This symbol in connection with the signal word “Danger” indicates an immediate danger for the life and health of

persons. Failure to heed these instructions can result in serious damage to health and even fatal injury.

WARNING!

This symbol in connection with the word „Warning” means a possibly impending danger for the life and health of

persons. Failure to heed these instructions can result in serious damage to health and even fatal injury.

CAUTION!

This symbol in connection with the signal word “Caution” indicates a possibly dangerous situation. Failure to heed

these instructions can lead to minor injuries or damage of property.

Special safety instructions:

DANGER!

This symbol in connection with the signal word “Danger” indicates an immediate danger for the life and health of

persons due to voltage.

Failure to heed these instructions can result in serious damage to health and even fatal injury. The operations may

only be carried out by a professional electrician.

Tips and recommendations:

NOTE!

…points out useful tips and recommendations as well as information for an efficient and trouble-free operation.

Reference marks:

Marks a reference to another chapter of this manual.

Marks a reference to another chapter of another document.

General, Safety, Transport and Storage

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4.3 Statement of Warranties

The producer guarantees the functional capability of the process engineering and the selected parameters.

4.4 Demounting and Disposal

Unless acceptance and disposal of returned goods are agreed upon, demount the device considering the safety instructions of this manual

and dispose it with respect to the environment.

Before demounting, disconnect the power supply and secure against re-start. Then disconnect the supply lines physically and discharge

remaining energy. Remove operational supplies and other material.

Disposal:

Recycle the decomposed elements: Metal components in scrap metal, Electronic components in electronic scrap, Recycle plastic compo-

nents, dispose the remaining components according to their material consistence.

CAUTION!

Wrong disposal causes environmental damages!

Electronic scrap, electronic components, lubricants and other auxiliary materials are subject to special refuse and can

only be disposed by authorized specialists!

Local authorities and waste management facilities provide information about environmentally sound disposal.

Safety

CAUTION!

Please read the operating manual carefully, before using the device! Observe the installation instructions! Only start

up the device if you have understood the operating manual. The operating company is obliged to take appropriate

safety measure.

The initial operation may only be performed by qualified and trained staff.

Selection and installation of the devices as well as their embedding into the controlling system require qualified

knowledge of the applicable laws and normative requirements on the part of the machine manufacturer.

4.5 General Causes of Risk

This chapter gives an overview of all important safety aspects to guarantee an optimal protection of employees and a safe and trouble-free

operation. Non-observance of the instructions mentioned in this operating manual can result in hazardous situations.

4.6 Personal Protective Equipment

Employees have to wear protective clothing during the installation of the device to minimize danger of health.

Therefore: Change into protective clothing before performing the works and wear them throughout the process.

Additionally observe the labels regarding protective clothing in the operating area.

Protective clothing:

PROTECTIVE CLOTHING

… is close-fitting working clothing with light tear strength, tight sleeves and without distant parts. It serves preliminari-

ly for protection against being gripped by flexible machine parts.

Do not wear rings, necklaces or other jewellery.

PROTECTIVE GLOVES

…for protecting the hands against abrasion, wear and other injury of the skin.

PROTECTIVE HELMET

…for protection against injuries of the head.

General, Safety, Transport and Storage

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4.7 Conventional Use

The product described in this manual was developed to execute safety-related functions as a part of an entire assembly or machineThe

ELGO-device is only conceived for the conventional use described in this manual.

The ELGO EMAX / EMAL linear encoders only serve to measure lengths.

CAUTION!

Danger through non-conventional use!

Non-intended use and non-observance of this operating manual can lead to dangerous situations.

Therefore:

Only use the device as described

Strictly follow the instructions of this manual

Avoid in particular:

Remodelling, refitting or changing of the construction or single components with the intention to alter the

functionality or scope of the device.

Claims resulting from damages due to non-conventional use are not possible.

Only the operator is liable for damages caused by non-conventional use.

4.8 Safety Instructions for Transport, Unpacking and Loading

CAUTION! Transport the package (box, palette etc.) professionally. Do not throw, hit or fold it.

4.9 Handling of Packaging Material

Notes for proper disposal: 4.4

4.10 Inspection of Transport

Check the delivery immediately after the receipt for completeness and transport damage.

In case of externally recognizable transport damages:

Do not accept the delivery or only accept under reserve.

Note the extent of damages on the transportation documents or delivery note.

File complaint immediately.

NOTE!

Claim any damage immediately after recognizing it. The claims for damage must be filed in the lawful reclaim peri-

ods.

4.11 Storage

Store the device only under the following conditions:

Do not store outside

Keep dry and dust-free

Do not expose to aggressive media

Protect from direct sun light

Avoid mechanical shocks

Storage temperature (6) needs to be observed

Relative humidity (6) must not be exceeded

Inspect packages regularly if stored for an extensive period of time (>3 months)

Product Features

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5Product Features

The series EMAX / EMAL is an absolute length measuring system. Sensor and translator and interpolation unit

are together in the same compact housing. The magnetic tape of series EMAB is paste up to a plain area. The

EMAX / EMAL encoders can be mounted with a maximum distance of 1.5 mm to the magnetic tape. With a

reduced measuring accuracy the sensor distance can be up to 2.0 mm.

The only difference between EMAX and EMAL is the maximum measuring length:

EMAX up to 10 m

EMAL up to 20 m

SSI, CAN, RS232, RS422 and IO-Link are available as interfaces for the EMAX / EMAL sensors.

For more information about the interfaces see section 8.

Typical applications are handling systems, conveyor and storage technology, hydraulic presses, stamping ma-

chines, casting machines, linear slides, linear drives and pick and place systems.

Two different designs are possible as sensor housings:

1. sensor housing with fixed cable outlet (see 6.2)

2. sensor housing with M9 round connector (see 6.3)

For versions with fixed cable outlet, a guide carriage and a guide rail are available (see accessories 12.2).

Overview of features:

no referencing required

direct wear free and contactless measurement

allowed distance range between sensor and magnetic tape: 0.1 ... 1.5 mm

Distance not ok = red LED on

measuring length up to 10 m (EMAX) resp. 20 m (EMAL)

high resolution 10 µm

repeat accuracy +/- 1 increment

very resistant against dirt

5.1 Functional principle

A Hall sensor and a magneto-resistive impedance measuring bridge are guided over a two-track magnetic tape

with a fine-interpolation trace and an absolute track. Together with the sensor line the absolute track provides

an absolute value and the fine-interpolation trace provides together with the interpolation electronic the measur-

ing systems high resolution.

The fine interpolation track encloses alternately north- and south-pole tracks with a distance of 5 mm. These are

scanned with resistance bridges and provide a resolution of 0.01 mm. The absolute value provides the sensor

line with 16 single Hall sensors; these sensors are scanning the code sections of the north and south poles. The

absolute value on the magnetic tape recurs every 10 m with an EMAX resp. every 20 m with an EMAL system.

Figure 1: Coding of the magnetic tape

fine interpolation track

non-magnetized area

absolute track

NS N S N S

N N N NS S S S N N N NS S S S N NS S

S N S N S

Magnetic tape EMAX / EMAL Cable outlet

fine interpolation track

non-magnetized area

absolute track

NS N S N S

N N N NS S S S N N N NS S S S N NS S

S N S N S

Magnetic tape EMAX / EMAL Round connector

Sensor with cable outlet:

Sensor with M9 round connector:

Technical Data

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6Technical Data

6.1 Identification

The type label serves for the identification of the unit. It is located on the housing of the sensor and gives the

exact type designation (=order reference, see type designation) with the corresponding part number.

Furthermore, the type label contains a unique, traceable device number.

When corresponding with ELGO always indicate this data.

6.2 Dimensions Sensor Housing with Cable Outlet

Figure 2: Dimensions of sensor with cable outlet

6.3 Dimensions Sensor Housing with M9 round connector

Figure 3: Dimensions of sensor with M9 round connector

14.1

22.5

30.9

37.1

63.5

19.6 4.4

67.5 7.5

20.6 1.7

Ø 3.3 Ø 6.8

184

Ø approx. 9

Ø approx. 11

14.5

2x45°

20.25

Ø 3.3

1.5x45°

SW10

5.5

15.5

5.8

Ø 1.2

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