LORENZ MESSTECHNIK LCV-USB3 User manual

Lorenz Messtechnik GmbH Obere Schlossstrasse 127/129/131
73553 Alfdorf Phone [phone], Fax [phone]
[email protected], www.lorenz-messtechnik.de
Technical changes, errors and misprints excepted. 090374a_LCV-USB3
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Ampliers
Operating Instructions
USB-Sensor-Interface LCV-USB3

Lorenz Messtechnik GmbH Obere Schlossstrasse 127/129/131
73553 Alfdorf Phone [phone], Fax [phone]
[email protected], www.lorenz-messtechnik.de
Technical changes, errors and misprints excepted. 090374a_LCV-USB3
2/13
Table of Content
1 Imprint / Copyright 3
2 Important Notes / Keeping 3
2.1 General Informations 3
2.2 Intended Use 5
2.3 General Hazards in the Event of non-compliance with the Safety Instructions 5
2.4 Residual Hazards 5
3 Safety and Warning Notices 5
3.1 Symbols 5
3.2 Health Protection and Safety 6
3.3 Conversions and Changes 6
3.4 CE Marking 6
4 Preamble 6
4.1 Product Description 6
4.2 Safe and Correct Use 7
5 Pin Assignment 7
5.1 Pin Assignment for Strain Gauge Sensors with mV/V Signal 8
5.2 Pin Assignment for Active Sensors with ±5V or ±10V Signal 8
5.3 Pin Assignment for Active Current Sensors with mA Signal 8
6 Option Digital Input at Channel B 9
6.1 Pin Assignment for Auxiliary Supply and Digital Input 9
7 Application Example 10
7.1 Displacement Sensor Potentiometric (supplied by LCV-USB3) 10
8 Debugging 11
9 Technical Data 12
9.1 Options 12
9.2 Calibrations mV/V 13
10 Equipment disposal 13
11 Reference Information 13

Lorenz Messtechnik GmbH Obere Schlossstrasse 127/129/131
73553 Alfdorf Phone [phone], Fax [phone]
[email protected], www.lorenz-messtechnik.de
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1 Imprint / Copyright
© 2019 Lorenz Messtechnik GmbH, D-73553 Alfdorf
These operating instructions do not constitute an agreed quality agreement or durability guarantee
within the meaning of § 443 BGB (German Civil Code).
Technical changes, errors and misprints excepted.
No part of this publication may be reprinted without the written permission of Lorenz Messtechnik
GmbH, Alfdorf.
2 Important Notes / Keeping
Before installing and commissioning the device, these operating instructions, and in particular the
corresponding safety instructions, must be read. The device may only be used as described in this
manual to prevent injury or damage.
The operating instructions have been drawn up in accordance with EN 82079-1 and must be kept in
a safe place.
2.1 General Informations
 Theseoperatinginstructionsareintendedfortechnicallyqualiedpersonnelwhohaveappropriate
 knowledgeintheeldofmeasurementandcontroltechnology.Qualiedpersonnelarepersonswho
are familiar with the installation, operation, maintenance and repair of the device and have the appro-
 priatequalications.Thepersonnelmusthaveknowledgeofthelegalandsafetyregulationsandbe
able to apply them.
 Thedevicemayonlybeusedbyqualiedpersonnelinaccordancewiththetechnicaldatainconnec-
tion with the safety regulations and rules set out below. During operation, the legal and safety regula-
tions required for the respective application must also be observed. This also applies analogously to
the use of accessories.
The exact information about all safety instructions and warnings contained in these operating in-
structions as well as their correct technical implementation are prerequisites for the safe installation,
commissioning, safe operation and maintenance of Lorenz Messtechnik GmbH devices. All measures
 mustonlybecarriedoutbyqualiedpersonnel.Allpersonsinvolvedintheprojectplanning,instal-
lation and operation of Lorenz Messtechnik GmbH devices must be familiar with the safety concepts
 intheautomationtechnologyandbequaliedintheabove-mentionedsense.
For reasons of clarity, these operating instructions cannot cover all details and information and not all
applications for the handling of devices from Lorenz Messtechnik GmbH. Nor can all conceivable
types of installation, operation and maintenance must be taken into account.

Lorenz Messtechnik GmbH Obere Schlossstrasse 127/129/131
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If further information is desired or required, or if special problems occur which are not described in
detail in these operating instructions, please contact Lorenz Messtechnik GmbH.
The devices of Lorenz Messtechnik GmbH may only be operated in accordance with the applications
described in these operating instructions. Built-in devices may only be operated if they are properly
installed.
By connecting and commissioning the device, the purchaser accepts the General Terms and Con-
ditions of Sale and Delivery of Lorenz Messtechnik GmbH. Furthermore, the buyer accepts the possi-
ble incompleteness of this operating manual and that the information contained therein may not be
complete and informations are without guarantee. Errors, misprints and changes excepted.
Intended Use, not intended Use
A device from Lorenz Messtechnik GmbH is used for display, processing and control of processes. It
must not be used as the sole means of averting dangerous conditions on machines and systems.
Machines and systems must be designed in such a way that faulty states cannot lead to a dangerous
situation for the operating personnel (e. g. through independent limit value-switches or mechanical
interlocks). In particular, it must be ensured that a the device, its malfunction or its failure does not
lead to damage to property or a loss of that can lead to danger to people. It is also important to prevent
the precautions that are taken from being cannot be circumvented for the safety of a plant. Emergen-
cy stop devices must remain effective at all times.
Installation Instructions
Devices from Lorenz Messtechnik GmbH must be installed and connected in compliance with the
relevant DIN and VDE standards. They must be installed in such a way that unintentional operation
 issufcientlyexcluded.Topreventaninterruptionofthesupplyandsignallinesfromleadingtoan
 undenedor dangerousstate, appropriatehardware andsoftware safetyprecautions mustbe ob-
served.Supply and signallines mustbeinstalled insuch a waythat theydonot interferewith the functionof
the Lorenz Messtechnik GmbH by interfering signals (such as inductive or capacitive interferences).
Notes on Malfunctions, Maintenance and Repair
The devices do not contain any parts that require or can be serviced by the user. Repairs may only
be carried out by Lorenz Messtechnik GmbH. If it can be assumed that safe operation of the device is
no longer possible, it must be put out of operation immediately and secured against unintentional
operation. This applies in particular if:
• The device is visibly damaged
• The device is no longer functional
• Parts of the appliance are loose
• The connecting lines are visibly damaged
In addition, we would like to point out that all obligations of Lorenz Messtechnik GmbH arise exclusi-
vely from the respective purchase contract in which the warranty is conclusively stated.

Lorenz Messtechnik GmbH Obere Schlossstrasse 127/129/131
73553 Alfdorf Phone [phone], Fax [phone]
[email protected], www.lorenz-messtechnik.de
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2.2 Intended Use
Devices from Lorenz Messtechnik GmbH are to be used exclusively for measuring tasks and the di-
rectly associated control tasks. Any use beyond thisis considered to be improper.
The valid legal and safety regulations must be observed during measurement. The instrument is not
a safety component in the sense of its intended use and it is transported and stored properly. The
installation and commissioning, the operation and the disassembly must be carried out professionally.
2.3 General Hazards in the Event of non-compliance with the Safety
Instructions
The device complies with the current safety requirements. Residual dangers can emanate from the
device if it is improperly used and operated by untrained personnel. Any person entrusted with the
installation, operation, maintenance and repair of the device must read and understand the operating
instructions and, in particular, the safety instructions.
Incorrect use (e. g. by untrained personnel) may result in residual hazards. The operating instructions
must be read and understood by all persons involved in the installation, commissioning, maintenance,
repair, operation and dismantling of the device is trusted. The device must not be used if visible da-
mage is visible.
2.4 Residual Hazards
The system planner, equipment supplier and operator must plan, implement and be responsible for
the safety of the equipment. Other hazards must be minimized. The residual dangers of the measure-
ment technology must be pointed out and human error must be taken into account. The design of the
system must be suitable for avoiding hazards - a hazard analysis must be carried out for the system.
The applicable regulations and laws are as follows to note.
3 Safety and Warning Notices
3.1 Symbols
Warning: There is a risk of injury to persons. Damage to the machine is possible. The
accident prevention regulations of the employer‘s liability insurance association must
be observed.
Note: Important points to be observed. A note that indicates a possible danger of da-
mage to the product, process, person or the environment.
Additional information or reference to other important detailed information.

Lorenz Messtechnik GmbH Obere Schlossstrasse 127/129/131
73553 Alfdorf Phone [phone], Fax [phone]
[email protected], www.lorenz-messtechnik.de
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3.2 Health Protection and Safety
To ensure that our products are safe and do not pose a health hazard, the following points must be
observed:
1. Read all relevant sections of this manual carefully before starting work.
2. All warning signs on containers and packaging must be observed.
3. Installation, operation, maintenance and repair work may only be carried out by suitably trai-
ned personnel and in accordance with the instructions given. If one of these instructions is not
followed, the user of the product bears full responsibility for any consequences that may occur.
4. Disconnect the appliance from any power supply before opening it.
5. The safety instructions must be strictly observed in order to avoid damage to property and
bodily injury - possibly even fatal ones.
3.3 Conversions and Changes
 ThedevicemaynotbemodiedintermsofdesignorsafetywithouttheexpressconsentofLorenz
 MesstechnikGmbH.Anymodicationexcludesanyliabilityonourpartfordamagesresultingthere-
 from.Repairsandmodicationsareprohibited.
3.4 CE Marking
With the CE marking, Lorenz Messtechnik GmbH guarantees that its product meets the requirements
of the relevant EC directives.
4 Preamble
4.1 Product Description
 TheLCV-USB3isameasurementamplierfortheconversionofanalogsignalsintodigitalmeasured
values. These measured data can be requested through the Computer via the USB-interface.
The LCV-USB3 is supplied from the USB-interface. No external mains adaptor is needed.
 TheLCV-USB3isdesignedforfourtypesofsensorsignals(specicationsseedatasheet):
Strain gauge signals: ±3 mV/V (corresponds ±30000 digits)
Active signals with voltage input: ±5V (corresponds ±25000 digits)
Active signals with voltage input: ±10V (corresponds ±25000 digits)
Active signals with current input: 0 ... 20 mA (corresponds 0 ... 20000 digits)
Active signals with current input: 4 ... 20 mA (corresponds 0 ... 20000 digits)
 Theampliertypeandtheresolutionaredeclaredonthetypelabel,atypemodicationisonlyautho-
rized by the manufacturer. Therefore only the corresponding sensor type may be connected.
Warning: Please pay attention to the signal type. Connecting the wrong type of signal may
cause damage.
The measuring data are signed in integer format (see above in brackets).

Lorenz Messtechnik GmbH Obere Schlossstrasse 127/129/131
73553 Alfdorf Phone [phone], Fax [phone]
[email protected], www.lorenz-messtechnik.de
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If the LCV-USB3 is calibrated together with the sensor, you can take the output values from the test
 certicate.
If the LCV-USB3 is calibrated without a sensor, you can take the output values as described
above. In this case, they are pre-calibrated with a high precision source.
The Lorenz USB drivers are required on the PC to operate the SI-USB3. These can be downloaded
from our website. Instructions are available under Document No. 090198.
This VS3 Software supports the following functions:
• CongurationpossibilitiesfortheVS3
• Storage of sensor-related scaling and adjustment data
• Display for the presentation of measured data
(actual value, tare value, minimal value and maximal value)
• Presentation of the measured data in a diagram
• StorageofmeasureddatainCSV-format(outputcongurable)
• Storage of the diagram in BMP-format (output size adjustable)
• Print-outofthediagramwithdateanddenablesuperscription
• Presentation of the sensor information
The communication protocol is disclosed for the development of own applications. An English proto-
col description is available on our website under Document No. 90110.
4.2 Safe and Correct Use
Warning: Observe the correct sensor adjustment.
ConsiderthecorrectVS3conguration.
Chooseasignicantleidentication/prexwhenstoringmeasureddata.
5 Pin Assignment
Pin assignment sensor Pin assignment USB
grey
CONTROL SIGNAL
white
SIGNAL -
yellow
SIGNAL +
green
0V (SUPPLY -)
brown
+ 4V
brown
+ 12V
SHIELDING
black 0V
red + 5V
white D -
green D +

Lorenz Messtechnik GmbH Obere Schlossstrasse 127/129/131
73553 Alfdorf Phone [phone], Fax [phone]
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5.1 Pin Assignment for Strain Gauge Sensors with mV/V Signal
5.2 Pin Assignment for Active Sensors with ±5V or ±10V Signal
5.3 Pin Assignment for Active Current Sensors with mA Signal
Description Pin (6 pin socket) Color Remark
0V / GND 1 Green Ground of supply voltage 4V
4V 2 Brown Supply for strain gauge sensors 4V
Shield 3 Shielding Connect shield with sensor housing
Signal + 4 Yellow Positive signal input
Signal - 5 White Negative signal input
Control signal 6 Grey If available in sensor
Description Pin (12 pin socket) Color Remark
0V / GND E Green Ground of supply voltage 12V
12V F Brown Supply for active sensors 12V
Signal + C Yellow Signal input
Signal - D White Relating to signal input
(internal to 0V / GND)
Control signal K Grey If available in sensor
Shield M Shielding Connect shield with sensor housing
Description Pin (12 pin socket) Color Remark
0V / GND E Green Ground of supply voltage 12V
12V F Brown Supply for active sensors 12V
Signal + C Yellow Signal input
Signal - D White Relating to signal input
(internal to 0V / GND)
Control signal K Grey If available in sensor
Shield M Shielding Connect shield with sensor housing

Lorenz Messtechnik GmbH Obere Schlossstrasse 127/129/131
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6 Option Digital Input at Channel B
Scheme
6.1 Pin Assignment for Auxiliary Supply and Digital Input
Description
Auxiliary supply: 12V
Auxiliary supply: 0V
Control voltage: +
Control voltage: -
PC
Sensor
USB
Sensor
connector
Optional
LCV-USB3
Auxiliary supply 12V
Control voltage + (X1)
Control voltage - (X2)
Auxiliary supply 0V
Option:
Digital input
X1
X2
12V
0V

Lorenz Messtechnik GmbH Obere Schlossstrasse 127/129/131
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7 Application Example
7.1 Displacement Sensor Potentiometric (supplied by LCV-USB3)
- With “active sensors” only (type: U5)
- Accuracy is depending on the quality of the reference voltage
4V
Signal+
0V / GND
Output 0 … 20000 digits
R > 100Ω
Output 0 … 25000 digits
5V reference
voltage
controller
12V
Signal+
0V / GND
R > 220Ω

Lorenz Messtechnik GmbH Obere Schlossstrasse 127/129/131
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8 Debugging
 Thischarthelpstondfrequenterrorsandthemeasuresfordebugging.
Error Possible cause Debugging
A connection to the
LCV-USB3 is not possible
Driver not or incorrectly in-
stalled
• Install driver package
• The rst start-up of the
LCV-USB3 must be carried out
with administrator rights
Supply voltage is over-
strained in such a way that it
breaks down
• Check whether the connected
sensor corresponds to the speci-
cationsoftheLCV-USB3
• If the sensor requires higher
current than available for the
LCV-USB3, this sensor can
not be used together with the
LCV-USB3
Supply voltage is shortened • Fix the short circuit
Output signal remains at the
positive or negative display
stop device/dead stop
Active sensor connected to
strain gauge input
• Check on type label which input
typehasbeenconguredforthe
applied sensor connection
Supply voltage connected to
sensor input
• Check/correct the pin assign-
ment
Outputsignalhighlyuctu-
ates (strain gauge)
Open sensor input • Connect sensor

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9 Technical Data
1 Integrable in large sensors
9.1 Options
USB-Sensor-Interface LCV-USB3
Type LCV-USB3/... DMS U5 U10 I0 I4 I10 I12
Article-No. board1117721 117722 117723 117724 117923 117924 117925
Article-No. LCV-USB3 in the
measuring line 117725 117726 117727 117728 117926 117927 117928
Input range ±3 mV/V ±5V ±10V 0 ... 20 mA 4 ... 20 mA 10 ±10 mA 12 ±8 mA
Evaluation Side
Measured values ±30000
digits ±25000 digits 0 ... 20000 digits
Resolution 1 mV/V ≙
10000 digits
1V ≙5000
digits
1V ≙2500
digits 1 mA ≙1000 digits
Zero point 0 digits
Output format 16 bit signed Int.
Input resistance >1MΩ -
Rated burden - 62Ω
Measuring rate max. 5000 meas./s
Temperature drift 4 bit/10 K
Linearity error ±32 digits
Accuracy ±32 digits
Supply from USB 4...6VDC≤350mA
Cable length LCV-USB3
- evaluation 2 m
Sensor Side
Sensor supply 4V≤20mA 12V≤80mA
Cable length LCV-USB3 - sensor 1 m (max. 3 m)
Miscellaneous
Rated temperature range 10 ... 40 °C
Operating temperature range 0 ... 50 °C
Storage temperature range -10 ... 70 °C
Dimension (Ø x L) 25 x 115 mm (incl. screw joint)
Level of protection IP67
Weight of LCV-USB3 in the
measuring line 0.3 kg
Article-No. Description Type
115134 Adjustmentamplierwithsimulator mV/V / ±10V / 0/4 ... 20 mA
110120 Digital input at channel B LCV-USB3/TR-EXT
113591 Input range ±4.5 mV/V per channel LCV-USB3/SI-USB/- RS485/-ETH/SI-USB3/4.5 mV/V
114104 Sensor exc. LPM 4V max. 20 mA, input range LPM 5V LCV-USB3/LPM
115125 Adjustment linear potentiometer LCV-USB3/SI-USB/SI-USB3/LPM

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9.2 Calibrations mV/V2
2 Lorenz-Standard:
- Supply voltage 5V, calibration range ±1 mV/V in 10 steps, calibration range ±2 mV/V in 10 or 20 steps
 -LanguageoftheCerticate:GermanandEnglish
 -CalibrationatDC:NormalK3608,ifsodisplayaboveKeithley2000orLorenzVS3(LorenzamplierwithUSBinterface)
- Calibration at 225 Hz: Normal K3608, if so display above HBM MGCplus + ML38
- Calibration at 225 Hz: Normal BN100A, if so display above HBM DMP40
10 Equipment disposal
The device must be disposed of in accordance with the applicable legal regulations - see also our
„General Terms and Conditions of Delivery and Sale“ at www.lorenz-messtechnik.de
11 Reference Information
• Document number 090373, German Manual
• Document number 080991, data sheet “Sensor-Interface with USB” (German 080990)
• Documentnumber090367“OperationManualforCongurationanEvaluationSoftwareVS3”
(German 090366)
• Document number 090235, “Driver Installation Description for Sensor-Interfaces
SI-USB3, LCV-USB3, LCV-USB2, LCV-USB, SI-USB and Sensors with USB Interface
(USB Driver.exe)“ (German 090198)
• Documentnumber090110Lorenzprotocol“Aexiblecommandsetfordigitalsensorsand
interfaces“
Article-No. Description
401010 Proprietary calibration acc. to ISO 10012 10 steps
401011 Proprietary calibration acc. to ISO 10012 20 steps