MAN-163 Automatic Pendulum System
Contents
1. RS232 RSARS L e H o n PC co RS232 Interface a a a e A s s oe No 32 Pendulum No 1 No 2 Pendulum Pendulum RS 485 network formed by the Automatic Pendulum Systems When you are using a RS 485 network the distance between the farthest Automatic Pendulum System and the computer PC should not exceed 1200m And you should connect a 120 ohm resister through a parallel connection on the RS 485 port of the farthest Automatic Pendulum System to decrease signal reflectance When the transmission distance is over the 1200m limit you can use a fibre optic cable to transmit data If you are using a fibre optic cable there will be no limit on your transmission distance and you can connect up to 99 Automatic Pendulum Systems in the same network Operating Manual 12 3 02 Analogue 4 20mA connection The Automatic Pendulum System provides a 4 20mA analogue output interface which enables you to perform remote measurement by measuring current values The 4 20mA remote measurement should be performed using a Soil Instruments Data Acquisition System to collect the analogue data A C 85 265V or D C 24V 9 RS232 connection Data Acquisition System CY C CY Ot Lo d m d d IO RU No 1 No 2 No 3 Pendulum Pendulum di Pendulum Measur2. connection The Automatic Pendulum System is available with either an 85 265VAC power connection or an 18 24VDC connection defined at time of ordering the Automatic Pendulum System The power connection details are identified on the tables below and adjacent to the power cord exit point on the underside of the Automatic Pendulum System Definitions on cores of the power cord A C Powered a aaa aaa cable Definition Description MEM Brown 00 0l Love DE Blue h4 N f Netral Yellow Green GND Earth Bonding UE ERIT M UR TTA ee ee As ee uuu cables Definition Description ae Brown DC 18w24VDC a Blue DC GND GND Yellow Green N C Not Connected Operating Manual 9 Incorrect connection of the power supply or supply voltages may result in damage to the Automatic Pendulum System or risk of electrocution Connections should only be made by a competent person 2 04 Alignment The Automatic Pendulum System can be aligned to the wire manually or by using the optional portable readout unit To manually align the Automatic Pendulum System raise the drip deflector upper light shield and using a ruler measure from the edge of the wire access hole to the wire in both X and Y axis Move the Automatic Pendulum System to obtain your desired wire starting positions and ensure the axis are aligned with the axis of the structure being monitored For systems fitted with a third axis att
3. you utilise all of the functions of the Automatic Pendulum System Please read this manual thoroughly before use and keep it handy when using the Automatic Pendulum System The following symbols are used throughout the manual This Symbol indicates a warning Failure to observe the warning may result in injury product malfunction unexpected readings or damage to the product that may invalidate its warranty This symbol indicates a tip Additional information that may be helpful when using or installing the Automatic Pendulum System The Automatic Pendulum System is designed to measure Soil Instruments pendulum equipment we are also confident that it will measure other commercially available pendulum equipment from other manufactures but we will not guarantee its reliable operation with non Soil Instruments products Soil Instruments Limited has an ongoing policy of design review and reserves the right to amend the design of the Automatic Pendulum System and this instruction manual without notice Please refer to our terms and conditions of sale for warranty information AL Products marked with the MN symbol are subject to the following disposal rules in European countries This product is designated for separate collection at an appropriate collection point Do not dispose of as household waste For more information contact Soil Instruments Ltd or the local authorities in charge of waste management Operating Manual 3
4. 1 02 Taking care of your Automatic Pendulum System Soil Instruments Automatic Pendulum System has been designed for use in harsh environments however certain precautions should be observed to ensure a long reliable product life Do not drop The Automatic Pendulum System may malfunction if subjected to strong shocks or vibrations Do not immerse The Automatic Pendulum System has been designed to be water resistant but may malfunction if immersed under water Keep away from strong magnetic fields Do not use or store this device in the vicinity of equipment that generates strong electro magnetic radiation or magnetic fields Avoid extremes of temperature Do not expose to extreme heat or cold temperatures as this may cause damage to the Automatic Pendulum System 1 03 System components In addition to this manual you should have e Automatic Pendulum System unit e RS 485 communication lead e 4 20 mA connection lead e Software and documentation CD e Lower light shield Optional component for strong light conditions e Drip deflector Upper light shield Optional component for strong light conditions x RS 485 4 20mA communication connection lead Automatic Pendulum System Z axis datum Drip Lower light deflector upper shield light shield Operating Manual 4 1 04 Familiarisation The Automatic Pendulum System is a precision instrument designed for measuring the displacement of pendulum wire in hanging or inverted pe
5. 485 T Rt H NC A IN MM pe eae RM MEUM DM M E EE J GND Bonding on axisZ A GR CR E aoe aa ce qu Qe e K Iz Analogue output on axis RS 485 output cable connections pe de SERE Core colour Definition Description Prisa 0 A Null NC SS e cede in ne Passe RS iii Y B Null NC EE nanan nanan aaa Y C Null NC Ria ES PA Y D Null NC a o A Y MEN NM QN BLACK Co RS485 B o RS485 T R NENNEN G RED LLLLLLR8485 amp A RS485 T R M Ho e ssl Nul fd JC ME ERE Analogue output cable connections 19 ge pone Core colour Definition Description Paro plug iS F o Sn Sect mil el mim elim limi in mie it t Minimi mimm mimm mieten mie mien mein m rim miii inim A RED Ix X axis 4 20mA output E S S UI SRUERAHATE A PU INCHES B BLACK GND X axis ground P EE en P einen PA Ri C GREEN Iy Y axis 4 20mA output pr A OS ED M RE A ee D WHITE GND Y axis ground Erect NAE QUAE DENS cL EUIS e E cep pe Dri iue E SHIELD GND Grounding Se diues E unum O RO T RS J YELLOW GND Z axis ground A A EDEN EE pee gre gg ae eee pore er es re el m K 1 BLUE Z axis 4 20mA output Operating Manual 14 Take care that the RS 485 wires are not shorted even when using only the 4 20mA output as this will result in the malfunction of the
6. Automatic Pendulum System 3 04 Data processing After the installation and debugging process the Automatic Pendulum System will display record the initial values Xy and Yo of the pendulum wire When subsequent movement between the position of the pendulum wire and the Automatic Pendulum System occur the instrument will display record measured values X and Y the calculated offsets of the pendulum wire are AX X Xo AY Y Yo AZ Z Zo Where AX AY AZ Displacements on axis X Y Z mm Xo Yo Zo Initial readings on axis X Y Z Mi Y Z1 Current readings on axis X Y Z If you are using analogue values for measurement and calculation use the following formulas AX Ix1 Ixo X Grx AY Ty1 Tyo X Gry AZ 1Iz1 Iz0 x Giz Where AX AY AZ Displacements on axis X Y Z mm Ixia Iy Iz Current 4 20mA readings on axis X Y Z Ixo Ivo Izo Initial 4 20mA readings on axis X Y Z Gix Gry Grz Instrument factors on axis X Y Z Grx Gry Giz 3 125mm mA 6 250mm mA for 100mm range For every measuring point calculated results from the formulas above represent offset of the position of the pendulum wire relative to the Automatic Pendulum System itself and its direction is related to the installation direction and alignment to the structure The Initial values can be set to zero using the communication software via the RS 485 network 3 05 Communication software Every Automatic Pend
7. ach the Z detection block to the wire and clamp in position 102 5mm from the top of the detection block to the base of the Pendulum System Re position the drip deflector upper light shield allowing for the expected movement in the Z axis If using the optional portable readout unit connect the readout unit to the connector on the underside of the Automatic Pendulum System and switch on the power to the system The display unit has a magnetic base so that it can be attached to the Automatic Pendulum System housing The portable readout unit will display the position of the pendulum wire for the X Y and Y axis Move the Automatic Pendulum System to obtain your desired wire starting positions and ensure the axis are aligned with the axis of the structure being monitored When aligned position the four sets of clamps over the clamping bars and tighten to secure the Automatic Pendulum System to the wall brackets Check using a spirit level that the Automatic Pendulum System is horizontal in both axes Cut and fit the plastic cover strips to the exposed sections of the wall brackets and fit the plastic end caps Operating Manual 10 Operating Manual 11 Section 3 Remote operation 3 01 RS 485 connection Every Automatic Pendulum System has a separate network address You can connect up to 32 Automatic Pendulum Systems through the RS 485 data interfaces to get a complete measuring network A C 85 265V or D C 24V
8. ing analoque signals using a Data Acquisition System When you are using a Data Acquisition System to perform remote measurement you should use one differential channel for each axis of the Automatic Pendulum System Cable Sraeid CElIO0 liim Te EtOT 0 01 Sppm SS ee cma Operating Manual 13 3 03 Plug connections The RS 485 and 4 20mA share a 10 pin Bendix outlet on the underside of the Automatic Pendulum System Each system is supplied with a RS 485 communication cable with a 10 pin Bendix plug and a 4 20mA cable with a 10 pin Bendix plug Please follow the labelling on the end of each cable carefully when attaching additional cable Use good quality waterproof connectors or a cable splicing kit for connections to the extension network cable For reference purposes the connections are tabulated below RS 485 and analogue output outlet connections rr i i i i i i i ie Gar oi A TEN Ti a a a AA coc ee eee eee eee ee eer er ere IG IG IIO I TIG IT IO er ee ee re re 1 1 1 1 10 Pin Bendix Definition Description eed RS485 analogue output OMAN a A Ix Analogue output on axis X T a ia alia STI eodd ue AE B GND Bonding on axis X punte URINE ME IN Rd AE AG I e SA CA A Analogue output on axis Y D GND Bonding on axis Y ESA E AR E E NC E EUN UE ues reese HAGA O TARDE E RS485 CB RS485 T R mE c P RS485 A RS
9. ment X Y Z Coordinator X axis mm Y axis mm Z axis mm Operating Manual 6 Section 2 Installation This section provides details of the standard installation using Soil Instruments mounting bracket Set 2 01 Orientation Below is the plan view of the Automatic Pendulum System Axis X and axis Y are reference directions of the instrument This means the positive directions of those axis reflect the reading changes recorded when the pendulum wire moves along the positive direction of axis X and Y the reading on axis X and Y axis will increase Lrmj ir Reference directions of the Automatic Pendulum System When installing the Automatic Pendulum Systems directions for those Automatic Pendulum Systems should be the consistent For instruments installed on a dam the positive direction of axis X is always the direction of water flow the positive direction of axis Y always points to the left bank when looking in the direction of water flow The direction of the X and or Y axis can be reversed within the Automatic Pendulum System by using the communication software via the RS 485 network Operating Manual 7 2 02 Mounting onto wall brackets If you choose to install the Automatic Pendulum System with the Soil Instruments mounting bracket set you should fix the wall m
10. ndulum systems These systems allow the measurement of bidirectional horizontal and vertical 3 axis version displacements or deflections within large structures such as dams high rise buildings bridges etc The Automatic Pendulum System uses a high resolution linear array CCD charge coupled device sensor as the measurement system When the shadow of the pendulum wire generated by parallel light rays projects onto the CCD sensor CCD gray level scans are generated The system then identifies the shadow positions of the pendulum wire by analysing those scans The coordinate positions of the pendulum wire are calculated and output through RS 485 data communications or 4 20mA D A conversion put T m ae pine pe Ju a A iji PP l CCD Sensor Point Lamp Lens Wire Shadow The illustration of the principle of CCD imagin There are two identical sets of light sources lens and the CCD sensor within an Automatic Pendulum System in order to measure bidirectional displacements Those two sets are perpendicular to each other A third sensor is fitted to the 3 axis version The diagram below shows the working principle of the Automatic Pendulum System The illustration of the workin rinciple of the Automatic Pendulum System Features Operating Manual 5 Listed below is a short list of the features designed into the Automatic Pendulum System e CCD photoelectric imaging providing real non contact 2D
11. or 3D measurement e High precision no electronic drift and good long term stability e Advanced intelligent 256 level optical path imaging for greyscale images and strong ambient light proof abilities e The optional portable display unit which can display current real time measurements facilitates installation debugging and manual measurement tasks e Automatic measurement using Soil Instruments data logger or connection to a computer via an RS 485 to RS 232 interface e Networking function using RS 485 connectivity Every Automatic Pendulum System has a separate network address You can make an Automatic Pendulum System an independent node in a network through the RS 485 interface using its unique network address e The 4 20mA analogue output interface enables the instrument to be compatible with most measuring system with standard signal measurement functions e Storage of up to 2000 1200 on 3 axis sets times of measuring data e Power Off Protection Data stored to non volatile memory e Fully sealed sensors and electronics to 95 humidity non condensing e The built in power supply can be connected to a wide range of voltages 100V 240V AC The enclosure of the Automatic Pendulum System is rectangular in shape and has an access slot provided to enable installation onto existing pendulum wires The power cord RS485 communication 4 20mA analogue output and portable readout connection interfaces are fitted to the base plate of the instru
12. ounting arms to an angle iron frame or a concrete buttress built by the end user onsite The wall brackets should be mounted 500mm apart with the pendulum wire positioned at mid distance between them Ensure the brackets are mounted in a horizontal position and parallel to each other a spirit level and shims should be used to achieve this The end of the brackets should protrude between 200mm and 400mm beyond the position of the pendulum wire Fit one set of sprung clamp nut clamp washer and bolt to each bracket and slide to the rear of the bracket Affix the clamping bars to the Automatic Pendulum System using the four M10 x 30mm counter Sunk screws and spacers Ensure the spacers are correctly fitted between the clamping bar and the base plate of the Automatic Pendulum System Remove the bracing bar from the wire access slot and place the Automatic Pendulum System on to the mounting arms in the correct orientation taking care to guide the wire down the wire access Slot Refit the bracing bar across the wire access slot and tighten in position Operating Manual 8 Bracing bar Fit the other set of sprung clamp nut clamp washer and bolt to each bracket If Supplied fit the optional lower light shield using the two M4 x 8mm screws and fit the drip deflector upper light shield to the wire and position to obtain the minimum required clearance between the lip of the deflector and the Automatic Pendulum System 2 03 Power
13. soil INSTRUMENTS Automatic Pendulum System User Manual Man 163 4 0 1 06 08 2014 Philip Day Chris Rasmussen Chris Rasmussen Manual No Revision Date Originator Checked Authorised for Issue Operating Manual 1 Contents Section 1 1 01 1 02 1 03 1 04 Section 2 2 01 2 02 2 03 2 04 Section 3 3 01 3 02 3 03 3 04 3 05 Section 4 4 01 4 02 Section 5 5 01 ENEFOGUCHION iia a 3 Important INfOFMAON rn Me e RP ROREM ONCE LIMEN 3 Taking care of your Automatic Pendulum System sess 4 System components da dais 4 Fam MaS aio rr ra 5 Instala ON 7 dizi ISI T I ITUR 7 MOUNTING onto Wall brackets ii AAA 8 POWer CONMECUION 1 42 59 0029 Mortis 9 ANA Meta bie 10 Remote Operatoria a 12 ROTA DuC OMe CELO Mesa toos 12 Ahalogue 4 20m A CONNOR 13 PIUGCOMMECEIONS caca 14 Data DEOCOSSIDO acarrea daran daban danna iso 15 COMUNICACION SOT t WaA rescatar ada 15 Maintenance and trouble SHOOtING ccccccnnneceeccccnnneeeeececnnneeeeseeennneeeeseeennnnes 17 ROUTING rmaintenaricesss is des atada 17 Trouble SmootlMd 4ssetexviskt axorcdinaxors tbt prinia ors iiaisao 17 Help and SUDBOFLasissiaa ya REREA FR RERMERKERRERERVEEIEMEFRRXARNMMESSERIERSEEIMPERREN AS KERRARRERITERIRAS 19 FAO os 19 Operating Manual 2 Section 1 Introduction 1 01 Important information Thank you for choosing the Soil Instruments Automatic Pendulum System This manual has been written to help
14. ult occurs the display will show corresponding error code s by which you can maintain the Automatic Pendulum System Error code or Reason Solution fault symptom Err2 The ambient light is too bright Enhance light shielding methods or use an additional light shield A EE SA Err3 The light source is too weak Contact Soil Instruments Err4 There s no shadow no projection Re adjust the position of the which indicates the pendulum wire Automatic Pendulum System has moved out of the measuring range Err5 A fault occurs in the CCD image Contact Soil Instruments Sensor Err6 There are too many shadows which Clean up the optical path and indicate some dirt exists on the the pendulum wire optical path or on the pendulum wire Displays are Power supply failed Check to see whether the blank power supply works properly Displays are Address of the Automatic Pendulum Reset its address normal while System is not correct Check to see whether the Operating Manual 17 2 ce 1 04 1 CX CC Seta E ele a eS SS a eta AN ALO Di ii Sek ASSI Z2 452 A5 WI LU ARTO US hk Sa Ws eh oe hd are abnormal A fault occurs in the communication communication cable works line properly i i i i aa MEER sss es ss sss ssa AAA A ECCLE CEDE 1 I No analogue A fault occurs in the hardware Contact Soil Instr
15. ulum System is supplied with a free copy of communication and test software for use when connecting using a RS 485 network Operating Manual 15 The following comm Port settings are required Baud Rate 9600 8 Bits No parity 1 stop Bit For detailed usage of the software please see the help document within the software Operating Manual 16 Section 4 Maintenance and trouble shooting 4 01 Routine maintenance The Automatic Pendulum System is a low maintenance device the only regular maintenance required is the cleaning of the optical path A maintenance schedule should be established dependent on the environment in which the Automatic Pendulum Systems are operating For a generally clean environment we recommend monthly cleaning however this can be modified dependant on reliability of the readings and feedback from the maintenance engineers To clean the optical paths follow the procedure bellow 1 Remove the lower light shield 2 If you see a little dust on the lenses wipe them using a soft brush dedicated for lens use 3 If the lenses are very dirty you can use a piece of lens cleaning paper wetted with water or a slightly wet soft cloth to wipe the surface Don t use any organic solution to clean the optical path or enclosure 4 Re install the lower light shield Do not use any solvents or cleaning agents on the lenses 4 02 Trouble shooting The Automatic Pendulum System has a Self diagnosis function When a fa
16. uments A A nn Error codes and troubleshooting information on the Automatic Pendulum System Operating Manual 18 Section 5 Help and Support 5 01 FAQ 2 Which method of connection to the Automatic Pendulum System is the best A The RS 485 directly to a computer is the ideal method of communicating and collecting data from the Automatic Pendulum System it offers the best solution with regard to networking configuring and data collection The analogue 4 20mA output is more appropriate if data logging systems are already being utilised on site and a fixed computer is not available If Soil Instruments data logging systems are being used then communication via RS 485 is still possible The portable readout unit only allows the display of the current reading and is not recommended where regular automatically stored data are required 2 Why is orientation and alignment important The alignment and orientation is critical for ensuring that the data generated by the Automatic Pendulum System represents the real movement of the structure If the X axis of the Automatic Pendulum System is not orientated accurately with the X axis of the structure then when the structure moves only in the X axis the Automatic Pendulum System will show less movement in the X axis and some movement in the Y axis If the Automatic Pendulum System is incorrectly aligned for the anticipated direction and magnitude of movement then the pendulum wire ma
17. y move beyond the range of the Automatic Pendulum System This will result in the Automatic Pendulum System needing to be re aligned and an offset value applied to subsequent data soil INSTRUMENTS Bell Lane Uckfield East Sussex t 44 0 1825 765044 e info itmsoil com TN22 1QL United Kingdom f 44 0 1825 744398 w www itmsoil com Soil Instruments Ltd Registered in England Number 07960087 Registered Office 5th Floor 24 Old Bond Street London W1S 4AW Operating Manual 19
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