Schneeberger MINISLIDE MSQscale Manual

MINISLIDE MSQscale
Mounting Instructions | Technical Information
Mounting Instructions 2019

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This publication has been compiled with great care and all information has been
checked for accuracy. However, we can assume no liability for incorrect or incomplete
information. We reserve the right to make changes to the information and technical
data as a result of enhancements to our products. Reprinting or reproducing, even
in part, is not permitted without our written consent.
C100493

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Table of Contents
Page number
Table of Contents
1Safety Instructions 5
1.1 Scope of Application 5
1.2 Authorized Staff 5
1.3 Intended Use 5
1.4 General Safety and Protective Measures 5
1.5 Environmental Protection 5
1.6 Transport 5
2 CongurationoftheBaseStructure 6
2.1 General 6
2.2 Surface Quality 6
2.3 Flatness of the Mounting Surfaces 6
2.4 Locating Height and Corner Radii 7
2.5 Installation Methods 7
3 InstallationandAdjustmentGuidelinesfortheGuideway 9
3.1 Preparing for Installation 9
3.2 Installing the Guideway 10
3.3 Cleaning the Dimensional Scale 11
3.4 Lubrication 11
4 InstallationGuidelinesfortheMeasuringSystem 12
4.1 ESD Protection 12
4.2 Mating the Interface Module and the Guideway 13
4.3 Interface Module Installation Options 14
4.4 Connecting the Flexible Sensor Print to the Interface Module 15
4.5 Extension Installation (FFC Cable) 16
4.6 Connecting a Customer-provided Cable 19
5 Commissioning 20
5.1 Signal Transmission 20
5.2 Pin Assignments 21
5.3 Controller 22
5.4 Function Check 23
6 TechnicalPrinciples 24
6.1 System Accuracy 24
6.2 Interpolation 25
6.3 Evaluation of Digital Signals 26
6.4 Signal Frequency 27

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Table of Contents
Page number
7 TermsandDenitions 28
7.1 Interface Module 28
7.2 Accuracy Class 29
7.3 Repeatability 29
7.4 Referencing 29
7.5 Periodic Deviations 29
7.6 Comparator Errors 30
7.7 Sampling Rate 30
7.8 Single-Ended Signaling 30
7.9 Differential Signaling 30
7.10 Direction of Travel 30
8 ApplicationTips 31
8.1 Operating Conditions for the MINISLIDE MSQscale 31
8.2 EMC Characteristics of the MINISLIDE MSQscale 31
8.3 Magnetic Effects on the MINISLIDE MSQscale 31
9 Troubleshooting 32
9.1 Aligning the Digital Interface Module 32
9.2 Error Description 33

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Safety Instructions
These instructions describe installation of micro frictionless tables with integrated
measuring system MINISLIDE MSQscale.
Supplementary Literature: MINISLIDE MSQscale product catalog
MINI-X product catalog
MINILIDE MSQscale must only be assembled by appropriately trained specialists
who have read and understood these instructions.
MINILIDE MSQscale can only be exposed to the approved environmental influences
(see product catalog).
• Lubricants should be disposed of in an environmentally responsible way.
• Decommissioned components should be disposed of in accordance with local/
national laws and guidelines.
MINILIDE MSQscale are high-precision components and should be handled with care. For
transportation of these products in-house, the following points should therefore be noted:
• Transport guideways and accessories in their original packaging
• Protect guideways against impacts
•
Before working on electrical equipment, switch off or disconnect the power
supply and ensure that it cannot be switched on or connected again unintention-
ally.
•
Country-specific regulations, standards and guidelines for accident prevention
must be observed.
• The MINISLIDE MSQscale is sensitive to electrostatic discharge! The electronics
can be damaged if precautions are not taken against ESD; ESD regulations
should therefore be observed when handling ESD-vulnerable parts (EN 100015-1).
•
Do not store the products outdoors, and protect them against moisture
(10% - 70% relative humidity, non-condensing).
• Observe the specified temperature range (-40 °C to +80 °C)
• Only remove the products from their original packaging at their installation loca-
tion and immediately prior to installation.
• The products are lubricated in the factory. Check the condition of the lubricant
(the service life of the lubricant is limited).
Improper handling of the guideways can lead to pre-damage and thus to premature
failure.
1 Safety Instructions
1.1 ScopeofApplication
1.2 AuthorizedStaff
1.3 Intended Use
1.4 GeneralSafetyandProtectiveMeasures
1.5 EnvironmentalProtection
1.6 Transport

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cE7
cE6
MINISLIDE MSQscale are high-precision components. Flatness requirements of the
base structure are correspondingly high so that surface inaccuracies are not trans-
ferred to the guideways.
MINISLIDE MSQscale perform best when mounted on a rigid structure with a high
level of geometric accuracy. Inaccuracies in the guideway assembly surfaces have a
negative impact on their overall accuracy, running behaviour, push force and service
life. Unstable assembly surfaces can increase the internal forces within the guideway
assembly, which also adversely affects service life. Due to their lower rigidity and
limited machining accuracy, great care must be taken when designing base struc-
tures made of light metal for high-precision applications.
The surface quality of the supporting surface does not have a direct influence on the
function and running behaviour of the guideway, but it does on the static position
accuracy. Carriages and guide rails are compressed against the mounting surfaces
by the attachment screws with a high level of force. To prevent relaxation of the
assembly, a high surface contact ratio is required. This is achieved by means of high
surface quality.
The accuracy of the application critically determines the required surface quality of
the supporting and locating surfaces. It is therefore necessary to ensure the following:
• High-precision applications max. Ra value of 0.4
• Standard applications max. Ra value of 1.6
For the flatness of the surfaces (E6 and E7), the values in the table below should be
targeted.
Configuration of the base structure
Flatness of the Mounting Surfaces
Dimensions Flatness (in µm)
73
9
12 4
15
2 CongurationoftheBaseStructure
2.1 General
2.2 Surface Quality
2.3 FlatnessoftheMountingSurfaces

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r
1
h2h1
r
2
CongurationoftheBaseStructure
2.4 LocatingHeightandCornerRadii
2.5 InstallationMethods
Observance of the following height specifications for the locating surfaces guaran-
tees secure absorption of force and sufficient clearance for the carriages. The
carriages and guide rails feature a chamfer on the edges of the locating surfaces.
The corner radii specified in the following table are maximum values which ensure
that carriages and guide rails contact the mounting surfaces correctly.
The locating side of the carriage is opposite the carriage side with the company logo/type
designation. The guideway can be located on both sides.
The dimensions listed for the locating surface should be applied to ensure optimal
alignment of the guideway and an easy installation.
The load direction and installation complexity must be considered when choosing a
suitable installation method and determining the number and arrangement of the
lateral locating surfaces.
2.5.1. Load
Tensile and compressive forces do not have any influence on the lateral locating
surfaces. If lateral loads exceeding the permissible lateral force are present, locating
surfaces must be provided and lateral fastening points may be necessary. The num-
ber and position depend on the actual forces.
The locating surfaces should be arranged according to the force direction of the main
load. Lateral locating surfaces should also be provided when vibration and shock
loads are present. They also increase the rigidity of the system.
2 CongurationoftheBaseStructure
Rail width h1r1max r2max h2
7 1.0 0.2 0.3 2.5
9 1.5 0.3 0.4 3
12 2.5 0.4 0.4 4
15 3.0 0.5 0.5 5
Locating Height and Corner Radii

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2 CongurationoftheBaseStructure
2.5.2. Installationcomplexity
Locating surfaces simplify installation and reduce the effort necessary for aligning
the guide rails. With careful manual alignment of the guideway, lateral locating sur-
faces are not essential. When deciding on a method, installation complexity should
be carefully weighed against design and manufacturing complexity.
2.5.3. Installationoptions
Shown below are some typical installation methods that differ in terms of the number
and orientation of the locating surfaces, the lateral force capacity and the installation
complexity. These examples are intended to serve as a design aid.
Withoutlocatingsurfaces
• No locating surfaces present
• High installation complexity
• Very low lateral load capacity (forces transferred by friction)
Withlocatingsurfaces
• One locating edge each for guide rail and carriage
(locating pins can also be used)
• Simple installation
• High lateral force capacity in one direction (for example, for suspended installation)
Withlocatingsurfacesandlateralfixation
• Locating edges and lateral fixation for guide rail and carriage
• Relatively simple installation
• For high lateral forces in both directions
Installation without locating surfaces
Installation with locating surfaces
Installation with locating surfaces and lateral fixation

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B
A
InstallationandAdjustmentGuidelinesfortheGuideway
Locating surfaces
AReference on the mounting plate for the carriage
BReference on the machine bed for the guideway (both sides of the guideway can be used as locating surfaces)
3 InstallationandAdjustmentGuidelinesfortheGuideway
3.1 PreparingforInstallation
3.1.1. Requiredtoolsandequipment
• Fastening screws
• Torque wrench
• ESD protection kit
• Oil stone
• Cleaning materials
3.1.2. Preparingthelocatingsurfaces
• Check locating surfaces of the machine bed and mounting plate for shape and
position accuracy
• Clean all locating surfaces thoroughly. Remove ridges and surface irregularities
with an oil stone
• Clean the locating and supporting surfaces of the guideways and carriage with
a clean cloth
• Lightly oil the locating and supporting surfaces
Use white spirit or alcohol for cleaning. Do not use nitro thinner or acetone, since they
can damage the measuring system.
Never use compressed air!

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3 InstallationandAdjustmentGuidelinesfortheGuideway
3.2 InstallingtheGuideway
• Before installation, the guideway, machine bed, mounting plate and fastening
screws must all be at room temperature.
•
The MINISLIDE MSQscale sensor is an electrostatically vulnerable component
and is delivered in ESD-protective packaging. To ensure the sensor remains pro-
tected, the ESD-protective packaging should not be removed during installation
of the MINISLIDE MSQscale guideway.
• Always tighten the fastening screws with a torque wrench. See section 3.2.1 for
tightening torques.
• With relatively long guideways, tighten the fastening screws alternately starting at
the middle of the guideway.
• Always brace the locating surface of the guideway against the locating surface
of the machine bed. The guideway can be located on both sides, the locating side
of the carriage is opposite the carriage side with the company logo/type desig-
nation.
• The screws can be inserted and tightened through the opening in the carriage.
3.2.1. Tighteningtorquesforthefasteningscrews
The recommended torque values can be found in the table. These values apply to
oiled screws.
The friction coefficient μ can be reduced by up to half when using greases containing
MoS2. The corresponding torque values should be reduced by half.
The following table shows the torque values for the fastening screws of strength class
12.9 (friction coefficient 0.125) and of the strength class A2-70 (friction coefficient 0.2)
in accordance with DIN 912:
Thread size Tightening torque in Ncm
Strength class 12.9 Strength class A2-70
M1.6 28 20
M2 60 30
M3 210 110
M4 500 260