Axiometrix Solutions imc WFT-Cx User manual

imcTest & Measurement GmbH • Voltastr.5 • 13355Berlin • Germany
© 2022 imcTest & Measurement GmbH
WFT-Cx and -Cxs 6-component wheel
Manual
Edition 4 - 08.07.2022

© 2022 imcTest & Measurement GmbH imc WFT 6-component wheel - Manual, Edition 4 - 08.07.2022
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Disclaimer of liability
The contents of this documentation have been carefully checked for consistency with the hardware and
software systems described. Nevertheless, it is impossible to completely rule out inconsistencies, so that we
decline to offer any guarantee of total conformity.
We reserve the right to make technical modifications of the systems.
Copyright
© 2022 imcTest & Measurement GmbH, Germany
This documentation is the intellectual property of imcTest & Measurement GmbH. imcTest &
Measurement GmbH reserves all rights to this documentation. The applicable provisions are stipulated in
the "imc Software License Agreement".
The software described in this document may only be used in accordance with the provisions of the "imc
Software License Agreement".
Open Source Software Licenses
Some components of imc products use software which is licensed under the GNU General Public License
(GPL). Details are available in the About dialog.
A list of the open source software licenses for the imc measurement devices is located on the
imcSTUDIO/imcWAVE installation medium in the folder "Products\imc DEVICES\OSS" or "Products\imc
DEVICEcore\OSS". If you wish to receive a copy of the GPL sources used, please contact our Hotline.

© 2022 imcTest & Measurement GmbH imc WFT 6-component wheel - Manual, Edition 4 - 08.07.2022
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TableofContents
TableofContents
1 General introduction ................................................................................................. 5
1.1 Customer support / Hotline ........................................................................................................... 5
1.2 Legal notice ..................................................................................................................................... 5
1.3 Customized cable manufacturing .................................................................................................. 8
1.4 Notes regarding this manual .......................................................................................................... 8
2 Safety ........................................................................................................................ 9
3 Delivery and operation ............................................................................................ 12
3.1 After unpacking ............................................................................................................................ 12
3.2 Before commissioning .................................................................................................................. 12
3.3 Notes on connecting .................................................................................................................... 14
4 Maintenance and service ......................................................................................... 16
4.1 Maintenance ................................................................................................................................ 16
4.2 Calibration .................................................................................................................................... 16
4.3 Storage ......................................................................................................................................... 16
4.4 Transport ...................................................................................................................................... 16
5 WFT - 6-component wheel force transducer ............................................................ 17
5.1 Introduction ................................................................................................................................. 17
5.2 Usage ............................................................................................................................................ 17
6 Fundamentals .......................................................................................................... 18
6.1 Forces and Torques ...................................................................................................................... 19
6.2 Coordinate Transformation of the Measurement Values ........................................................... 21
6.3 Radial displacement ..................................................................................................................... 22
6.4 Axial displacement: Offset a ........................................................................................................ 22
6.5 Sample rate .................................................................................................................................. 24
6.6 Zero Balance ................................................................................................................................. 24
7 Technical Components ............................................................................................. 25
7.1 Sensor with integrated electronics .............................................................................................. 25
7.2 WFT adaptor for stationary application ....................................................................................... 25
7.3 WFT interface (CRFX/WFT-2) ....................................................................................................... 26
7.4 Hub adaptor, modified rim .......................................................................................................... 27
8 Installation and Configuration ................................................................................. 28
8.1 Installation of the sensor ............................................................................................................. 28
8.2 CRFX/WFT-2 Hardware Setup ...................................................................................................... 40
8.3 Configuration with imc STUDIO ................................................................................................... 40
8.4 Preparing and performing measurement .................................................................................... 45
8.5 Compensation "Axial/Radial displacement" ................................................................................ 54
9 Technical Specs ........................................................................................................ 55
9.1 WFT sensors ................................................................................................................................. 55
9.2 CRFX module (CRFX/WFT-2) ......................................................................................................... 56

© 2022 imcTest & Measurement GmbH imc WFT 6-component wheel - Manual, Edition 4 - 08.07.2022
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TableofContents
Index .......................................................................................................................... 57

© 2022 imcTest & Measurement GmbH imc WFT 6-component wheel - Manual, Edition 4 - 08.07.2022
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Customer support / Hotline Chapter 1
1 General introduction
1.1 Customer support / Hotline
If you have problems or questions, please contact our Customer Support / Hotline.
imc Test & Measurement GmbH
Hotline:
[phone]
E-Mail:
[e-mail]
Internet:
www.imc-tm.de
International partners
You can find the international sales partners on the Internet at
https://www.imc-tm.com/imc-worldwide/
You will help us with inquiries if you can name the serial number of your devices as well as the version
designation of the software. You should also have this documentation at hand. Thank you very much!
1.2 Legal notice
Quality management
imc Test & Measurement GmbH holds the ISO9001 certification. You can download the certification and
information about our quality system on our website:
https://www.imc-tm.com/about-imc/quality-assurance
Warranty
Subject to the general terms and conditions of imc Test & Measurement GmbH.

© 2022 imcTest & Measurement GmbH imc WFT 6-component wheel - Manual, Edition 4 - 08.07.2022
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Legal notice Chapter 1
Liability restrictions
All information and notes in this manual have been compiled taking into account the applicable standards and
regulations, the state of the art and our many years of knowledge and experience.
The manufacturer accepts no liability for damage due to:
· Non-observance of the manual
· Non-intended use
Important information for customers who want to make their own adaptors for
the sensors
imc also manufactures customer specific adaptors for the sensors against payment, so that the sensors can be
installed professionally at the customer's site and used according to the contract.
If customers produce the adaptors on their own request, imc points out the following as a precaution:
· The contractual usability of imc sensors requires that they are installed professionally with custom-made
adaptors. Otherwise, the contractual usability and especially the compliance with the specifications given
for the sensors cannot be guaranteed.
· The customer's claims for defects against imc for adaptors manufactured by the customer himself extend
only to the sensors and not to the adaptors. imc does not assume any liability for defects that the imc
sensors can be used with the adaptors manufactured by the customer according to the contract, especially
that the specifications given for the imc sensors are met. If the customer makes the adaptors himself, imc
is not liable for defects. This does not apply if the customer can prove that his own production is not the
cause of the defect.
· Furthermore, the General Terms and Conditions of imc Test & Measurement GmbH apply.
Guarantee
Each device undergoes several quality tests before leaving production. In the process, almost every early failure
is detected. Nevertheless, it is possible that a component fails only after a longer period of operation. For this
reason, all imc products come with a two-year functional warranty. The prerequisite is that no changes have
been made in the device.
Unauthorized intervention in the device voids any warranty claim.
ElektroG, RoHS 2, WEEE, CE
The imcTest & Measurement GmbH is registered with the authority as follows:
WEEE Reg. no. DE 43368136
valid from 24.11.2005

© 2022 imcTest & Measurement GmbH imc WFT 6-component wheel - Manual, Edition 4 - 08.07.2022
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Legal notice Chapter 1
Notes on radio interference suppression
WFT-Cx or -Cxs sensors satisfy the EMC requirements for an use in industrial settings.
WFT-Cx or -Cxs sensors satisfy the EMC requirements for unrestricted use in industrial settings. Any additional
devices connected to the WFT-Cx or -Cxs sensors must satisfy the EMC requirements as specified by the
responsible authority (within Europe1) in Germany the BNetzA - "Bundesnetzagentur" (formerly BMPT-Vfg. No.
1046/84 or No. 243/91) or EC Guidelines 2014/30/EU. All products which satisfy these requirements must be
appropriately marked by the manufacturer or display the CE certification marking.
Products not satisfying these requirements may only be used with special approval of the regulating body in the
country where operated.
All lines connected to the device should not be longer than 30m and they should be shielded and the shielding
must be grounded.
Note
The EMC tests were carried out using shielded and grounded input and output cables with the exception of
the power cord. Observe this condition when designing your experiment to ensure high interference
immunity and low jamming.
1 If you are located outside Europe, please refer the appropriate EMC standards used in the country of operation.
FCC Notice
WFT-Cx or -Cxs sensors has been tested and found to comply with the limits for a Class B digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be determined by
turning the equipment on and off, the user is encouraged to try to correct the interference by one or more of
the following measures:
· Reorient or relocate the receiving antenna.
· Increase the separation between the equipment and the receiver.
· Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
· Consult our imc Hotline or an experienced technician for help.
Modifications
The FCC requires the user to be notified that any changes or modifications made to this device that are not
expressly approved by imc may void the user's authority to operate this equipment.

© 2022 imcTest & Measurement GmbH imc WFT 6-component wheel - Manual, Edition 4 - 08.07.2022
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Legal notice Chapter 1
1.3 Customized cable manufacturing
To comply with the limits for Class B equipment under Part 15 of the FCC Rules, all signal lines connected to the
meter must be shielded and the shield must be connected.
Unless otherwise indicated, all connecting cables must not be long cables as defined by IEC 61326-1 (<30m).
LAN cables (RJ45) and CAN bus cables (DSUB-9) are excluded from this. Only cables with suitable properties for
the task (e.g. isolation to protect against electric shock) may be used. Independently performed modifications to
cables will void the manufacturer's functional warranty.
1.4 Notes regarding this manual
This document provides important notes on using the device. Safe working is conditional on compliance with all
safety measures and instructions provided.
Additionally, all accident prevention and general safety regulations pertinent to the location at which the device
is used must be adhered to.
These instructions exclusively describe the device, not how to operate it by means of the software!
Explanation of symbols
Reference
... indicates where to find further or related information.
Note
... highlights useful tips and recommendations as well as information for efficient
and trouble-free operation.
Warning
... indicates a hazardous situation or even a potentially hazardous situation that may
result in property hazardous situation that may result in property damage if not avoided.
Attention
... indicates a possible risk of injury.
Help us to improve the documentation and the products:
· Working with the device could be improved by changing the mechanics?
· There are terms or descriptions in the manual or technical data that are incomprehensible?
· What additions and extensions do you suggest?

© 2022 imcTest & Measurement GmbH imc WFT 6-component wheel - Manual, Edition 4 - 08.07.2022
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Chapter 2
2 Safety
This section provides an overview of all important aspects of protection of the users for reliable and trouble-free
operation. Failure to comply with the instructions and protection notes provided here can result in serious
danger.
Responsibility of the operator
Along with the work safety procedures described in this document, the user must also conform to regulations
for safety, accident prevention and environmental protection which apply to the work site. If the product is not
used in a manner specified by the manufacturer, the protection supported by the product may be impaired.
Operating personnel
This document identifies the following qualifications for various fields of activity:
· Users of measurement engineering: Fundamentals of measurement engineering. Basic knowledge of electrical
engineering is recommended. Familiarity with computers and the Microsoft Windows operating system. Users
must not open or structurally modify the measurement device.
· Qualified personnel are able, due to training in the field and to possession of skills, experience and familiarity
with the relevant regulations, to perform work assigned while independently recognizing any hazards.
Warning
· Danger of injury due to inadequate qualifications!
· Improper handling may lead to serious damage to personnel and property. When in doubt, consult qualified
personnel.
· Work which may only be performed by trained imc personnel may not be performed by the user. Any
exceptions are subject to prior consultation with the manufacturer and are conditional on having obtained
corresponding training.

© 2022 imcTest & Measurement GmbH imc WFT 6-component wheel - Manual, Edition 4 - 08.07.2022
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Chapter 2
Special hazards
This segment states what residual dangers have been identified by the hazard analysis. Observe the safety notes
listed here and the warnings appearing in subsequent chapters of this manual in order to reduce health risks and
to avoid dangerous situations. Existing ventilation slits on the sides of the device must be kept free to prevent
heat accumulation inside the device. Please operate your device only in the standard operating orientation.
Danger
Lethal danger from electric current!
· Contact with conducting parts is associated with immediate lethal danger.
· Damage to the insulation or to individual components can be lethally dangerous.
Therefore:
· In case of damage to the insulation, immediately cut off the power supply and have repair
performed.
· Work on the electrical equipment must be performed exclusively by expert electricians.
· During all work performed on the electrical equipment, it must be deactivated and tested for
static potential.
Injuries from hot surfaces!
· Devices from imc are designed so that their surface temperatures do not exceed limits
stipulated in EN 61010-1 under normal conditions.
Therefore:
· Surfaces whose temperature can exceed the limits under circumstances are denoted by the
symbol shown at left.
Industrial safety
This certification has the sole purpose of releasing imc from the obligation to have the electrical equipment
tested prior to first use (§ 5 Sec. 1, 4 of DGUV Regulation3). This does not affect guarantee and liability
regulations of the civil code.
For repeat tests, a test voltage that is 1.5 times the specified working voltage should be used to test the isolation
for the highly isolated inputs (e.g. measurement inputs for high-voltage applications).
*
previously BGV A3.