ELGO Electronic LMIX2 Series User manual

Operating Manual
SERIE LMIX2
Magnetic Incremental Length Measuring System with 0.1mm Resolution
(Translation of the original operating manual)
Direct, contactless measurement
Repeat accuracy +/- 0.025mm
Measuring length theoretically unlimited
Insensitive against dirt
799 000 069 / Rev. 1 / 2013-03-27

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Publisher ELGO Electronic GmbH & Co. KG
Carl-Benz-Str. 1
D-78239 Rielasingen-Worblingen
Technical Support [phone] – 0
[phone]
[email protected]
Document- No. 799 000 069
Document - Name LMIX2-000-E
_
13-13
Document- Revision Rev. 1
Issue Date 2013-03-27
Copyright © 2013, ELGO Electronic GmbH & Co. KG

Contents
1Contents
1Contents ................................................................................................. 3
2General................................................................................................... 5
2.1Information Operating Manual ................................................................................5
2.2Explanation of Symbols ...........................................................................................5
2.3Statement of Warranties ..........................................................................................6
2.4Demounting and Disposal .......................................................................................6
3Safety...................................................................................................... 7
3.1General Causes of Risk ...........................................................................................7
3.2Personal Protective Equipment..................................................................................7
3.3Conventional Use...................................................................................................7
4Transport and Storage ............................................................................. 9
4.1Safety Instructions for Transport, Unpacking and Loading............................................9
4.2Handling of Packaging Material ...............................................................................9
4.3Inspection of Transport............................................................................................9
4.4Storage .................................................................................................................9
5Product Features.................................................................................... 10
6Technical Data....................................................................................... 11
6.1Identification ........................................................................................................11
6.2Dimensions Sensor ...............................................................................................11
6.3Technical Data Sensor ..........................................................................................12
6.4Technical Data Magnetic Tape...............................................................................13
7Type Designation................................................................................... 14
8Installation and First Start-Up ................................................................ 15
8.1Operating Area....................................................................................................15
8.1Mounting of the Magnetic Tape .............................................................................16
8.2Mounting of the Sensor .........................................................................................18
9Design and Functions ............................................................................ 20
9.1Pin Assignment.....................................................................................................20
10Accessories............................................................................................ 21
11Disturbances ......................................................................................... 22
11.1Fault Clearance....................................................................................................22
11.2Re-start after Fault Clearance.................................................................................23
12Maintenance ......................................................................................... 24
13Cleaning ............................................................................................... 24
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Contents
14Index..................................................................................................... 27
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General
2General
2.1 Information Operating Manual
This manual contains important information regarding the handling of the device.
For your own safety and operational safety, please observe all safety warnings and instructions.
Precondition for safe operation is the compliance with the specified safety and handling instructions.
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 illus-
trations in the manual are for better demonstration of the facts. They are not necessarily to scale and can slightly
differ from the actual design.
2.2 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 and 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.
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General
References:
()1.2) Marks a reference to chapter 1.2 of this manual.
(DOC 3.4) Marks a reference to chapter 3.4 of the document DOC.
2.3 Statement of Warranties
The statement of warranties is enclosed separately in the sales documents.
Guarantee
The producer guarantees the functional capability of the process engineering and the selected parameters. The
period of warranty is one year and begins with the date of delivery.
2.4 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 dis-
charge 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 components
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.
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Safety
3Safety
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.
3.1 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.
3.2 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 preliminarily 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.
3.3 Conventional Use
The ELGO-device is only conceived for the conventional use described in this manual.
The LMIX2 - ELGO- length measuring system only serves to measure lengths.
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Safety
C
A
UTION!
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.
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Transport and Storage
4Transport and Storage
4.1 Safety Instructions for Transport, Unpacking and Loading
CAUTION!
Transport the package (box, palette etc.) professionally.
Do not throw, hit or fold it.
4.2 Handling of Packaging Material
Notes for proper disposal: )2.4
4.3 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 periods.
4.4 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 Technical Data) needs to be observed
Relative humidity ()6 Technical Data) must not be exceeded
Inspect packages regularly if stored for an extensive period of time (>3 months)
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Product Features
5Product Features
LMIX2 is a magnetic length measuring system. Sensor and translator are integrated in one housing. The mag-
netic tape is glued to a smooth surface using the adhesive tape included in the delivery. LMIX2 can be installed
at a distance of up to 2.0mm to the magnetic tape. The signals A, A‘, B. B‘, Z, Z‘ are available.
Overview of features:
Direct contactless measurement
Distance between sensor and magnetic tape can vary between 0.1 and 2.0mm
Measuring length theoretically unlimited
High resolution 0.025mm at 4-edge triggering (0.1mm at 1-edge triggering)
Repeat accuracy +/- 0.025mm
Insensitive against dirt
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Technical Data
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, chapter 7).
Furthermore, the type label contains a unique, traceable device number.
When corresponding with ELGO always indicate this data.
6.2 Dimensions Sensor
Figure 1 Dimensions LMIX2
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Technical Data
6.3 Technical Data Sensor
LMIX2 (Standard version)
Mechanical Data
Measuring principle: Incremental
Measurement: linear
Maximum measuring length Theoretically unlimited
Speed: Max. 4 m/s (at optimum evaluation)
Resolution: 0.025mm (4-edge triggering)
Repeat accuracy: +/- 0.025mm
System accuracy at 20°C in μm: +
/
- (25 + 20 x L)
L = measuring length in meter
Distance from sensor to magnetic
tape Max. 2mm
Dimensions (without cable): L x W x H = 30x12,5x25mm
Housing material: Zinc die cast
Connection: Open cable ends (more options)7 Type Designation)
Sensor cable: 1.5m standard cable length, others on request, drag chain compliant
Weight: approx. 35 g without cable (cable approx. 60 g/m)
Magnetic tape
Necessary type: MB20-50-10-1-R
Conditions
Storage temperature: -25 °C … +85 °C
Operation temperature: -10 °C … +70 °C
(-25 °C … +85 °C on request)
Protection class: IP67
Electrical Data
Supply voltage: 5VDC or 10-30VDC
Ripple: 10-30V < 10%+/- (5V +/-25mV)
Current consumption max. 150 mA at 10-30V
Output signals:
Push-pull, continuous short-circuit protection
with inverted signals,
channel A, A‘, B, B‘, Z, Z‘
Output level: 10-30V HTL or 5V TTL
Index pulse 5mm
Max. output frequency per channel 20mA
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Technical Data
6.4 Technical Data Magnetic Tape
The magnetic tape consists of two components:
The actual magnetic tape which carries the position information
A mechanical stainless steel back iron
Magnetic tape MB20-50-10-1-R
Encoding: Incremental, one-track system
Pole pitch 5mm
Operation temperature processed:
-20 °C … +65 °C
(-20 °C … +80 °C when using the tape without adhesive tape, option
„B“ or „D“)
Storage temperature unprocessed:
Short-term: -10 °C … +60 °C
Medium-term: 0 °C … +40 °C
Long-term: +18 °C
(-20 °C … +80 °C when using the tape without adhesive tape, option
„B“ or „D“)
Gluing temperature: +18 °C … +30 °C
Relative humidity: max. 95 %, non-condensing
Accuracy at 20°C in mm: +
/
- (0,025 + 0,02 x L[m])
(L = measuring length in meters)
Material carrier tape: Precision strip 1.4310 / X10CrNi 18-8 (EN 10088-3)
Double-faced adhesive tape: 3M-9088 (observe processing notes), others on request
Dimensions:
Æwithout adhesive tape:
10 mm (+/- 0.1) x 1.35 mm (+/- 0.11)
Æwith adhesive tape (excl. carrier):
10 mm (+/- 0.1) x 1.56 mm (+/- 0.13)
Æwith adhesive tape (incl. carrier):
10 mm (+/- 0.1) x 1.63 mm (+/- 0.14)
Length expansion coefficient: α≈16 x 10-6 1/K
Thermal length expansion: ∆L[m] = L[m] x
α
[1/K] x ∆
ϑ
[K]
(L = tape length in meters, ∆ϑ= relative temperature change)
Bending radius:
min. 150 mm
(min. 50 mm when using the tape without adhesive tape, option „B“ or
„D“)
Available lengths: 32 m (up to 70 m on request)
Weight magnetic tape: ca. 62 g/m (including magnetic tape + cover foil)
Imprint on tape: ELGO standard, printing color black, character height >= 5 mm
Influence of other magnets:
Other magnetic fields must not exceed 64 mT (640 Oe; 52 kA/m) at the
surface of the magnetic tape, as this could damage or destroy the en-
coding of the magnetic tape.
Protection class: Carrier tape stainless steel
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Type Designation
7Type Designation
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Installation and First Start-Up
8Installation and First Start-Up
CAUTION
Please read the operating manual carefully before using the device!
Strictly observe the Installation instructions!
In case of damage caused by failure to observe this operating manual,
the warranty expires.
ELGO is not liable for any secondary damage and for damage to per-
sons, property or assets.
The operator is obliged to take appropriate safety measures. The first
start-up may only be performed by staff that has been trained and au-
thorized by the operator.
8.1 Operating Area
WARNING!
Do not use the device in explosive or corrosive environments!
The device must not be installed close to sources of strong inductive or
capacitive interference or strong electrostatic fields!
CAUTION!
The electrical connections must be made by suitably qualified person-
nel in accordance with local regulations.
The device may be designed for switchboard mounting. During work
on the switchboard, all components must be de-energized if there is a
danger of touching the energized parts!
(protection against contacts)
Wiring works may only be performed in the de-energized state!
Thin cable strands have to be equipped with end sleeves!
Before switching on the device, connections and plug connectors have
to be checked!
The device must be mounted in a way that it is protected against harm-
ful environmental influences such as splashing water, solvents, vibra-
tion, shock and severe pollution and the operating temperature must
not be exceeded.
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Installation and First Start-Up
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8.1 Mounting of the Magnetic Tape
8.1.1 Magnetic Tape MB20-50-10-1-R
The magnetic tape is delivered as described here. It is installed by gluing it to the mounting surface.
The standard ELGO magnetic tape consists of 3 components:
AThe magnetized, highly flexible plastic tape, connected on the bottom side with…
B... the carrier tape, a magnetically conductive, flexible steel tape. This steel tape protects the plastic tape
from mechanical damage and at the same time provides a magnetic short circuit. This significantly increases the
functional reliability in case of extreme magnetic influence. Aand Bare usually already bonded at the factory (a
different tape structure is possible in special cases, see type designation).
CIn order to preserve flexibility during transport and mounting, a magnetically permeable steel tape al-
ready fitted with adhesive tape is delivered separately. It serves to protect the plastic tape from mechanical dam-
age and should be glued onto the plastic tape after installation.
8.1.2 Handling
To avoid tension in the tape, it should not be twisted or stored with the magnetized plastic tape to the inside
minimum radius of curvature 150 mm).
Figure 2 Storage and Transport
Magnetized
Plastic tape
Steel band
Sensor side
Magnetized plastic tape
(magnetic tape)
Mountin
g
surface (e.
g
. machine bed)
C
B Magnetically conductive steel tape
(carrier tape)
A
Thickness: A + B + C = ca. 1.8mm
Magnetically permeable cover tape for protecting the
magnetic tape (not necessary for measurement)

Installation and First Start-Up
8.1.3 Processing Instructions for Gluing the Magnetic Tape
The provided adhesive tapes will stick well on clean, dry and smooth surfaces. The worse the pollution on loca-
tion, the better the surface should be prepared. We recommend a surface roughness of Ra<= 3,2 (Rz<= 25 /
N8). Typical solvents for cleaning the mounting surface are a 50/50 isopropyl-alcohol / water mixture or hep-
tane. The surfaces of materials such as copper, brass etc. should be sealed to avoid an oxidation.
The stability of the adhesion is directly depending on the contact which the adhesive develops to the surface. A
high pressure results in a good surface contact.
The optimal gluing temperature is between + 21° C and 38° C.
Avoid gluing the tape to surfaces that are colder than + 10°C as in this case the adhesive becomes too hard
and a sufficient immediate adhesion might be difficult to achieve. If the magnetic tape is installed correctly, the
bonding also holds at temperatures below zero. From experience, the maximum adhesion is reached after ap-
proximately 72 hours (at + 21° C). Only use the provided adhesive tape.
8.1.4 Resistance against Chemical Influences
Chemicals, showing no or only small effects:
- formic acid - glycerol 93°C - linseed oil - soy beans oil
- cotton seed oil - N-hexane - lactic acid
- formaldehyde 40% - Iso octane - petroleum
Chemicals, showing small to medium effects:
- acetone - gasoline - acetic acid 30% - Olein acid
- acetylene - steam - acetic acid, pure acetic acid - sea water
- ammonia - acetic acid 20% - isopropyl ether -stearic acid 70°C
- anhydrous - kerosene
Chemicals, showing strong effects:
- benzene - nitric acid 70% - nitrobenzene - lacquer solvent
- turpentine - nitric acid, red, vitriolic - carbon tetrachloride - trichloroethane
- tetrahydrofuran - xylene - hydrochloric acid 37%, 93°C
8.1.5 Gluing and Cutting the Magnetic Tape
NOTE!
When gluing the magnetic tape pay attention to the marks on the
magnetic tape. Improper installation delivers in correct values. A previ-
ously glued tape is destroyed after removal and cannot be reused.
Before the start of the bonding cut magnetic tape and masking tape to
the exact length basis.
Also observe the counting direction of the measuring system before
adjusting the tape.
Preferably, the magnetic tape should be glued into a groove or aligned to an edge.
Length of magnetic tape = Measuring length + Sensor length
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Installation and First Start-Up
Procedure for gluing:
1. The magnetic tape is already factory bonded with the steel band, in between is a double sided adhesive
tape. Glue the provided adhesive tape onto the carrier side (=steel band)
2. Now adjust the magnetic tape and glue it onto the surface. The best way to glue the magnetic tape is to
do it in two steps. Remove the first half of the cover film from the adhesive tape and adjust it, then do
the rest.
3. Then stick the adhesive tape onto the covering tape. It is not important on which side of the covering
tape the adhesive tape is stuck on.
4. Stick the covering tape onto the visible brown magnetic tape.
8.2 Mounting of the Sensor
8.2.1 Tolerances
Tolerances
Ride height 0.1-2.0 mm
Pitch/ Roll/ Yaw +
/
- 0.5 °
Lateral offset +
/
- 0.5 mm
Figure 3 Installation on magnetic tape (tolerances)
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Installation and First Start-Up
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8.2.1 Alignment of Sensor
Standard (horizontal) Option L (vertical)
Please indicate on your order!
Not active
Active Active
Not active

Design and Functions
9Design and Functions
9.1 Pin Assignment
Table 1Pin Assignment open cable ends
Connection type Color Function Description
Open cable ends White GND 0V
Brown
V
CC 10-30V / 5V DC
Green
A
Channel A
Yellow BChannel B
Black ZChannel Z
V
iolet
A
‘Channel A inverted
Orange B‘ Channel B inverted
Shield PE PE
Table 2 Pin Assignment Option D1 (ELGO standard)
Connection type Drawing Pin Function Description
9-pin D-SUB plug 1GND 0V
2
V
CC 10-30V / 5V DC
3
A
Channel A
4 B Channel B
6
A
‘Channel A inverted
7B‘ Channel B inverted
8 Z Channel Z
9Z‘ Channel Z inverted
Table 3 Pin Assignment Option D3 (circular plug for SKA-1)
Connection type Drawing Pin Function Description
9-pin circular plug 1GND 0V
2
V
CC 10-30V / 5V DC
3
A
Channel A
4 B Channel B
5 Z Channel Z
6
A
‘Channel A inverted
7B‘ Channel B inverted
8Z‘ Channel Z inverted
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