True Ground Speed Sensor (TGSS) 740
Contents
1. e 178 3 7 0 178 7 0 267 10 5 og o L 7 H 5X R 6 35 390 L HU MIN 6 35 250 Een Figure 4 Recommended mounting plate dimensions The TGSS has rubber shock absorber vibration mounts to reduce the effect of machine vibration The vibration mounts have an internal M6 thread the recommended installation torque is 5 4 7 3 Nm 48 65 in lbs 4 1 2 Mounting Angle Any error in the mounting angle will directly affect the Doppler accuracy At 35 an error of 1 is approximately a 1 error in speed measurement Post installation calibration should be done to remove errors due to bracket alignment tolerances and vehicle levelness MOUNTING PLATE E _ BEAM PATTERN bea l n3 wu N i Borm Tx A pt DN l EN x b ix 7 ic NS Si Say H dh he s BN i N gt SN GROUND LEVEL Y gt Figure 5 Installation angle True Ground Speed Sensor TGSS 740 10 GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOURCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Installation 4 1 3 Mounting the TGSS to a vehicle It is up to the original equipment manufacturer OEM to ensure the product is securely mounted to the vehicle The following guidelines are related to physically attaching the TGSS to the mounting bracket on a vehicle e2. was not controlled Effects of sudden temperature changes were performed in a separate test 2 Power was applied to the samples throughout the test with functional verification being performed before the end ofthe elevated and reduced temperatures l Operating Temperature 4 Temperature Change Rate 4 C min She da Megosssceee qecu ee m I Supply Power Off The samples underwent 10 cycles while EP455 requires 1 cycle only 2 Power was applied as indicated on the figure above while EP455 required application of power throughout the test 3 Samples were functionally tested after soaking and while still at extreme temperatures J Thermal Shock EP455 Requirement Test Performed l EP455 Thermal Shock test parameters with the actual test performed are shown in table above 2 Utilized 2 chambers to achieve fast temperature transitions of less than 1 minute from one temperature extreme to another True Ground Speed Sensor TGSS 740 21 GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOU RCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Appendix A K Electrostatic Discharge The unit is not designed to withstand an ESD 15 kV 8 kV was used for each point of discharge with the exception of the radome where the value used was 6 kV 2 Each ESD was deli
3. 460 gms with cable Materials Enclosure black Xenoy Cable Water resistant 18 AWG 4 C SJOW 8 1 Dimensions The following diagram shows the dimensions of the TGSS 79 8 3 14 58 9 2 32 A ry 41 1 1 62 94 4 Y 3 72 A 41 4 1 63 Y Y 112 2 N j F 4 42 RUBBER Y SHOCK MOUNTS s 104 4 4 11 Figure 9 Dimensions of the TGSS True Ground Speed Sensor TGSS 740 GS GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOURCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Appendix A 9 Appendix A 9 1 TGSS Technical Overview 9 1 1 Environmental ratings ae we TS EP455 Jul 91 Y N x Secon 6 1 1 Level Operating Temperate Y 2 Sectons 13 Thermal Shock N 3 a Section 5 12 Level Storage Temperature Y G 4 Secton 134 _ Humiiy Exposure N s Secions182 rumiaiyso N s Sectons2 2 arae Storage N 7 Section 5 9 Levara Sapere N s secionss2 Chemical Exposure N p pesnseimsz See Tess Moms i Section 5 6 Level 1 Sealing Tests Pres
4. GS Global Resources 1 800 261 8735 gsglobalresources com RESOU RCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Technical Specifications 5 4 Connectors There are 2 standard connectors available for the TGSS For units that do not have the Radar present output the connector is an AMP Superseal 1 5 series housing part number 282105 1 Figure 7 AMP Superseal 282105 1 AMP Superseal Connector Pin out Pin Function 1 Output Speed square wave 2 Battery 9 to 16 Vdc 3 Ground When the unit is equipped with the Radar present output the connector is a Deutsch DT series housing part number DT04 4P E003 9 e Figure 8 Deutsch DT04 4P Deutsch Connector Pin out Pin Function 1 Output Speed square wave 2 Ground 3 Battery 9 to 16 Vdc 4 Radar Present battery voltage Custom units with different cable lengths and connector types may be configured for OEM customers Contact your Parker Vansco representative True Ground Speed Sensor TGSS 740 15 GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOURCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Electrical Specifications 6 Electrical Specifi
5. S GLOBAL REOURCES INC ALL RIGHTS RESERVED 4 1 5 1 4 1 5 2 Installation INFORMATION It cannot be known with certainty if there is a problem introduced from an obstruction in the 10 db area because there are too many other parameters that come into play ground texture reflection coefficient of interference vibration level of interference etc The best practice is to design the mount so that there is plenty of clearance for the radar line of sight The model is based on a mounting height of 1 meter Any other height will require that the radar beam model be stretched ratiometrically with the new height This is done by looking at the model as spherical coordinates and scaling the radius proportionally to the 1 meter in the model Installation Validation After an installation location has been determined the TGSS needs to be mounted and evaluated to see if the Doppler signal is of acceptable quality The strength of the signal reflected back to the radar is determined mainly by the texture of the ground The more irregular the surface the higher the return signal This is due to a greater reflecting area On a very smooth surface most of the signal is reflected away from the radar Line of sight evaluation With the vehicle stationary over a smooth surface slowly sweep the engine rpm over it s range Monitor the TGSS speed output to see if any false speed is shown Ifa false speed reading occurs there is e
6. TGSS True Ground Speed Sensor TGSS 740 User Manual HY33 5005 IB US Ed 01 2012 UM TGSS 740000 00 201201 03 Darker VANSCO ENGINEERING YOUR SUCCESS GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOURCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Parker Hannifin Corporation Electronic Controls Division 1305 Clarence Avenue Winnipeg MB R3T 1T4 Canada Office 1204 452 6776 Fax 1 204 478 1749 http www parker com ecd http www vansco ca http www iqan com Copyright 2012 Parker Hannifin Corporation All rights reserved No part of this work may be reproduced published or distributed in any form or by any means electronically mechanically photocopying recording or otherwise or stored in a database retrieval system without the prior written permission of Parker Hannifin Corporation in each instance A Warning FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS AND OR SYSTEMS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH PERSONAL INJURY AND PROPERTY DAMAGE e This document and other information from Parker Hannifin Corporation its subsidiaries and authorized distributors provide product and or system options for further investigation by users having technical expertise The user through its own analysis and testing is solely responsible for making the final sel
7. TGSS specification overview 19 True Ground Speed Sensor TGSS 740 23 GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOURCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED
8. The TGSS should be secured with bolts in all 3 bolt holes using 6 mm Hex Head bolts and locking washers The bolts should be tightened to 5 4 7 3 Nm 48 65 in lbs Appropriate length bolts are routed from the underside of the unit through the mounting plate and tightened into the shock absorbers on the unit s base The bolts should engage the threads in the shock absorbers to a maximum depth of 6 35 mm 144 4 1 4 Line of sight clearance Itis important for the sightline of the radar beam to be as unobstructed as possible Interference with radar beam can lead to false or erratic speed readings The radar beam pattern is shown in Figure 5 Doppler line of sight The smaller region is the 3dB level and the larger region is the 10 dB level These areas are the relative sensitivity of the TGSS to motion The 3dB region is the area where the TGSS is most sensitive This path must be clear of any objects Interference in this area will have a high likelihood of degrading the performance of the product s ability to provide accurate speed measurement The larger 10dB region is a lower sensitivity area Objects that interfere in this area have a potential to be an issue Figure 6 Doppler line of sight True Ground Speed Sensor TGSS 740 11 GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOURCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life G
9. afety during installation 6 2 1 8 Safety during start up 6 2 1 4 Safety during maintenance and fault diagnosis 6 3 Product Description 7 3 1 TGSS 7 3 2 Compliances 8 4 Installation 9 4 1 Installation Guidelines 9 4 1 1 Mounting Bracket 9 4 1 2 Mounting Angle 10 4 1 3 Mounting the TGSS to a vehicle 11 4 1 4 Line of sight clearance 11 4 1 5 Installation Validation 12 4 2 Performance Considerations 13 5 Technical Specifications 14 5 1 Microwave Output 14 5 2 Speed Output Signal 14 5 3 Radar Present Output 14 5 4 Connectors 15 Electrical Specifications 16 Environmental Specifications 17 Mechanical Specifications 18 8 1 Dimensions 18 9 Appendix A 19 9 1 TGSS Technical Overview 19 9 1 1 Environmental ratings 19 10 Index 23 True Ground Speed Sensor TGSS 740 3 GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOURCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Introduction 1 Introduction These instructions are meant as a reference tool for the vehicle manufacturer s design production and service personnel The user of this manual should have basic knowledge in the handling of electronic equipment 1 1 Safety symbols Sections regarding safety marked with a symbol in the left margin must be read and understood by everyone using the system carrying out service
10. ance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Installation 4 Installation The TGSS is typically installed at a height of 0 3 to 1 meter 1 to 3 feet above the ground The maximum height of installation is 1 22 meters 4 feet The sensor mounts to a bracket on the underside of the vehicle where the sensor may be directed in either the forward or reverse direction Figure 2 Typical installation 4 1 Installation Guidelines The TGSS 740 Radar measures motion relative to itself It is important to prevent unwanted motion in order to achieve optimal performance The unwanted motion could be of the TGSS unit or of an object within the radar s line of sight 4 1 1 Mounting Bracket The bracket should be at least 6 35 mm 4 steel and the length kept short to minimize vibration MIN THICKNESS 6 35 250 Figure 3 Mounting plate The bracket dimensions that follow can be used as a guideline for the desired bracket size If itis necessary to increase the dimensions consideration should be True Ground Speed Sensor TGSS 740 9 GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOURCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Installation given to increase the material thickness as well This will help reduce the bracket s susceptibility to vibration
11. and its safety regulations WARNING Mounting modification repair and maintenance must be carried out in accordance with the manufacturer s regulations The manufacturer has no responsibility for any accidents caused by incorrectly mounted or incorrectly maintained equipment The manufacturer does not assume any responsibility for the system being incorrectly applied or the system being programmed in a manner that jeopardizes safety AN AN Damaged product may not be used If the control system shows error functions or if electronic modules cabling or connectors are damaged the system shall not be used WARNING Electronic control systems in an inappropriate installation and in combination with strong electromagnetic interference fields can in extreme cases cause an unintentional change of speed of the output function NOTICE As much as possible of the welding work on the chassis should be done before the installation of the system If welding has to be done afterwards the electrical connections on the system must be disconnected from other equipment The negative cable must always be disconnected from the battery before disconnecting the positive cable The ground wire of the welder shall be positioned as close as possible to the place ofthe welding The cables on the welding unit shall never be placed near the electrical wires of the control system True Ground Speed Sen
12. cations Power supply requirements Parameter Value Operating voltage 9 to 16 Vdc Operating current 120 mA 12 Vdc typical Circuit protection Current limiting device fuse of 5A should be installed Output signal Parameter Value High state VOH VDC 0 6V IOH mA X 1kQ IOH 16mA Source Low state VOL lt 1 0 V at 10 mA IOL 35mA Sink True Ground Speed Sensor TGSS 740 16 GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOURCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Environmental Specifications 7 Environmental Specifications The 740 TGSS conforms to the requirements of e ASAE EP455 FEB 2003 Environmental Considerations in the Development of Mobile Agricultural Electrical Electronic Components e ISO EN 14982 Agricultural and Forestry Machinery Electromechanical Test methods and acceptance criteria Refer to Appendix A for a complete list of specifications True Ground Speed Sensor TGSS 740 17 GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOURCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Mechanical Specifications 8 Mechanical Specifications Weight Approximately
13. ce Ri C Mechanical Handling Shock The test was performed with a drop distance of 1000 mm It exceeded the EP455 requirement of 400mm D Particle Impact Samples were tested using an alternate method dropping the gravel from a height of 3 7m above the surface under test The gravel was guided by a 3m long 12 7cm diameter tube which has its outlet 0 7m above the surface under test E Mechanical Shock Each sample was subjected to 100 applications of 400 m sec2 6 msec shock pulses on each axis EP455 calls for application of a single 490 m sec2 11msec half sine pulse on each axis F Random Vibration EP455 requirement calls for 2h minimum in each of 3 orthogonal axes at 52 4 m s 2 RMS overall acceleration and power spectral density of 2m 2 s 3 from 50 Hz to 2000 Hz it was performed for 24 hours per BS 7691 1994 200 020 g Hz 300 010 g Hz 350 002 g Hz True Ground Speed Sensor TGSS 740 20 GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOU RCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Appendix A G Storage Temperature The samples in this test were subjected to 40 C for 24 hours and then to 85 C for another 24 hours for a total soak time of 48 hours ASAE EP455 calls for a minimum soak time of 4 hours at each extreme temperature Transition from one temperature to another
14. ection of the system and components and assuring that all performance endurance maintenance safety and warning requirements of the application are met The user must analyze all aspects of the application follow applicable industry standards and follow the information concerning the product in the current product catalog and in any other materials provided from Parker or its subsidiaries or authorized distributors To the extent that Parker or its subsidiaries or authorized distributors provide component or system options based upon data or specifications provided by the user the user is responsible for determining that such data and specifications are suitable and sufficient for all applications and reasonably foreseeable uses of the components or systems Offer of Sale The items described in this document are hereby offered for sale by Parker Hannifin Corporation its subsidiaries or its authorized distributors This offer and its acceptance are governed by the provisions stated in the Offer of Sale elsewhere in this document or available at www parker com GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOU RCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Contents Contents 1 Introduction 4 1 1 Safety symbols 4 2 Precautions 5 2 1 General safety regulations 5 2 1 1 Construction regulations 6 2 1 2 S
15. erlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Product Description 3 2 Compliances This device complies with RSS 210 of Industry Canada Operation is subject to the following two conditions 1 this device may not cause interference and 2 this device must accept any interference including interference that may cause undesired operation of this device Ce dispositif se conforme la norme CNR 210 d Industrie Canada Les conditions suivantes s appliquent l utilisation du dispositif 1 le dispositif ne doit pas causer d interf rence radio lectrique et 2 le dispositif doit tre en mesure d accepter toute interf rence radio lectrique m me si celle ci est susceptible de compromettre son fonctionnement FCC ID MGR740030A This device complies with Part 15 of the FCC rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation L NOTICE Any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment True Ground Speed Sensor TGSS 740 8 GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOURCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Perform
16. ither a line of sight or vibration issue Vibration analysis In order to determine if the mounting has vibration the vehicle should be positioned over a rough surface With the vehicle stationary the engine rpm should slowly be ramped through its range Monitor the radar output speed to determine if different rpm are causing a vibration induced speed If there is vibration induced speed it can be from two sources Excess vibration motion of the radar 2 Something vibrating within the radar s line of sight If the false speed occurs on a smooth surface as well it is likely that there is a line of sight issue If the problem has been determined to be due to excessive vibration on the radar mount the vibration source needs to be reduced or high vibration isolation is required Possible things to investigate are 3 Add extra weight to the radar mount to increase it s isolation from vibration 4 Add vibration isolation to the mounting bracket installed on the vehicle 5 Relocate the radar to an area of lower vibration True Ground Speed Sensor TGSS 740 12 GS Global Resources 1 800 261 8735 gsglobalresources com RESOURCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Installation Hu NOTICE It is not required but is suggested that the user interface that is displaying the TGSS signal be configured to ignore any data whe
17. n the vehicle is stationary This will prevent undesired speed readings caused by external sources 4 2 Performance Considerations The TGSS is a K Band radar There are many factors that may influence its operation e The further the ground is from the radar the lower the return signal strength e Smooth surfaces will reflect less signal back resulting in lower return signal strength e There is no return signal over standing water Short term loss of signal from small puddles is handled by the software When driving over large areas of water the output speed may become erratic or drop to zero e External sources of motion can affect Doppler signal resulting in false speed output when stationary or increased speed output signal variation when moving o Tall blowing grass o Rain o Dripping water o Line of sight issue with vehicle installation ie hoses tires chassis components o Inadequate vibration isolation for the application o Flying debris from vehicle tires i INFORMATION Even with an ideal installation as outlined in section 4 the above conditions can still result in undesired speed readings being displayed True Ground Speed Sensor TGSS 740 13 GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOURCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Technical Specifications 5 Tech
18. nical Specifications 5 1 Microwave Output The output field strength generated by the TGSS is within the acceptability level set by the FCC IC and EC Carrier frequency Standard 24 125 GHz 50 MHz UK 24 300 GHz 50 MHz Maximum Power 100 mW EIRP Beam Width 13 in the E plane and 11 in the H plane Side Lobes nominal 17 dB 5 2 Speed Output Signal The frequency of the output signal is proportional to the speed of motion When using the standard transceiver frequency of 24 125 GHz the frequency will be 58 9Hz mph at 35 mounting angle The equation for Doppler shift frequency fd is given by V target velocity mph faz2v 9 cose C where fo transceiver frequency Hz c speed of light 671 x 10 mph 9 angle between beam and path of target degrees The sensor has the capability of scaling the output frequency The selection is done during production by programming the scaling factor into the micro controller The selectable scales are l 1 0 scaling 58 9 Hz mph 35 mounting angle 24 125 Ghz 2 75scaling 44 2 Hz mph approximately 1 pulse per cm 35 mounting angle 24 125 Ghz The speed range of the sensor is 0 3 to 44 mph 5 3 Radar Present Output This output signal is connected to the battery Care should be exercised when installing the unit into a system to limit the current on this output to less than 100 mA Q 12 V True Ground Speed Sensor TGSS 740 14 GLOBAL
19. sor TGSS 740 5 GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOU RCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Precautions 2 1 1 Construction regulations A CAUTION The vehicle must be equipped with an emergency stop which disconnects the supply voltage to the control system s electrical units The emergency stop must be easily accessible to the operator The machine must be built if possible so that the supply voltage to the control system s electrical units is disconnected when the operator leaves the operator s station 2 1 2 Safety during installation A CAUTION Incorrectly positioned or mounted cabling can be influenced by radio signals which can interfere with the functions of the system M C Safety during start up A WARNING The machine s engine must not be started before the control system is mounted and its electrical functions have been verified Ensure that no one is in front behind or nearby the machine when first starting up the machine Follow the instructions for function control in the Start up section m A Safety during maintenance and fault diagnosis CAUTION Ensure that the following requirements are fulfilled before any work is carried out on the hydraulics control electronics e The machine cannot start mo
20. sure wash ATTE lt it Section 5 15 1 Section 5 11 4 Level 2 oy F H2 Section 5 14 1 Mechanical Shock y Ej H3 Section 5 14 2 2 Level 1 Mechanical Handling Shock Saka lt lt H4 Section 5 17 Combined Environment N H5 Section 5 10 1 Level 1 Operating Voltage N Section 5 10 2 Level 1 Steady State Over Voltage N Section 5 10 7 Power Up Operational Requirements 8 Section 5 10 3 Steady State Reverse Polarity E Section 5 10 4 Steady State Short Circuit Protection Section 5 11 1 Transient Accessory Noise EUN E Section 5 11 4 Level 2 Transient Inductive Load Switching Power Lines Section 5 11 5 Level 2 Transient Load Dump 23 Section 5 11 6 1 Level 1 Transient Mutual Coupling N Power Source Lines 24 Section 5 11 6 2 Transient Mutual Coupling N Signal Lines Section 5 16 1 EMC Immunity to radiated EM field True Ground Speed Sensor TGSS 740 19 zzz m GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOURCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Appendix A Section 5 16 3 EMC Emissions Section 5 12 Level 2 Electrostatic Discharge Section 5 7 Particle Impact y D 9 1 1 1 List of Deviations A Transient Load Dump Voltage Amplitude Vs Source Impedance Ri B Transient Inductive Load Switching Power Lines Source Impedan
21. vered using the contact method as opposed to the air discharge method specified in the EP455 document 3 Itis generally accepted that all else being constant ESD delivered by contact method is harsher compared to one delivered by air discharge method L EMC Immunity Subject UUT to electromagnetic fields from 20 MHz to 1 GHz with field strength of 100 V m 2 EMC room geometry slightly smaller than referenced specification recommends 3 Used a stripline antenna M EMC Radiated Emissions Measure the UUT emissions from 20 MHz to 1 GHz frequency range 2 EMC room geometry slightly smaller than referenced specification recommends True Ground Speed Sensor TGSS 740 22 GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOURCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Index 10 Index A Appendix A 19 C Compliances 8 D Dimensions 18 E Electrical Specifications 16 Environmental Specifications 17 l Installation e 9 Installation Guidelines 9 Installation Validation 12 Introduction 4 L Line of sight clearance 11 M Mechanical Specifications 18 Mounting Angle 10 Mounting Bracket 9 Mounting the TGSS to a vehicle 11 P Performance Considerations 13 Precautions 5 Product Description 7 T Technical Specifications 14
22. ving Functions are positioned safely e The machine is turned off e The hydraulic system is relieved from any pressure e Supply voltage to the control electronics is disconnected True Ground Speed Sensor TGSS 740 6 GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOU RCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Product Description 3 Product Description 3 1 TGSS The true ground speed sensor TGSS uses the principle of Doppler shift to determine the ground speed of the vehicle or other type of equipment A microwave signal that is transmitted out of the sensor reflects off the target and is received by the sensor When the target terrain is moving relative to the sensor there is a change in the frequency of the reflected signal Doppler shift The ground speed is calculated by measuring the change in frequency The TGSS is enclosed in a black plastic case which is potted to cover the electronics The TGSS has a short cable terminated with a connector Figure 1 TGSS with Deutsch DT04 4P connector Custom units with different cable lengths and connector types may be configured for OEM customers Contact your Parker Vansco representative True Ground Speed Sensor TGSS 740 7 GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOURCES 5050 S Towne Drive New B
23. work or making changes to hardware and software The different safety levels used in this manual are defined below WARNING Sections marked with a warning symbol in the left margin indicate that a hazardous situation exists If precautions are not taken this could result in death serious injury or major property damage D CAUTION Sections marked with a caution symbol in the left margin indicate that a potentially hazardous situation exists If precautions are not taken this could result in minor injury or property damage 25 NOTICE Sections marked with a notice symbol in the left margin indicate there is important information about the product Ignoring this could result in damage to the product Contact the manufacturer if there is anything you are not sure about or if you have any questions regarding the product and its handling or maintenance The term manufacturer refers to Parker Hannifin Corporation True Ground Speed Sensor TGSS 740 4 GLOBAL GS Global Resources 1 800 261 8735 gsglobalresources com RESOURCES 5050 S Towne Drive New Berlin WI 53151 Foremost in Machine Performance for Life GS GLOBAL REOURCES INC ALL RIGHTS RESERVED Precautions 2 Precautions 2 1 General safety regulations Work on the hydraulics control electronics may only be carried out by trained personnel who are well acquainted with the control system the machine
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