August 2009 - Ocean Networks Canada
Contents
1. Neptune OBS Operation Guide Part No MAN OBS 0002 Designed and manufactured by G ralp Systems Limited 3 Midas House Calleva Park Aldermaston RG7 8EA England Proprietary Notice The information in this manual is proprietary to Guralp Systems Limited and may not be copied or distributed outside the approved recipient s organisation without the approval of G ralp Systems Limited G ralp Systems Limited shall not be liable for technical or editorial errors or omissions made herein nor for incidental or consequential damages resulting from the furnishing performance or usage of this material Issue A 2009 08 21 MAN OBS 0002 Table of Contents 1 2 EVER AEN ON i i i i i 3 MA NE 4 2 0 Pripp 4 22 Per monitora did COD Ol AAA AAA AA A 4 2 2 1 A NN eer rere EE 4 222 CONAM WEONES 8 23 Dem 10 TT RENNES Appendice Sirosen de 20 31 Main GCONMCCIOR Pino Uli 20 32 TS TOUS Ri EG 22 3 2 1 EV NAG 22 3 2 2 AQuadopp est Connector SS lS 23 3 2 3 Differential Pressure Gauge test CONMECTOTL c cccsssseecccceccceceeeeeaseesseesueesessaenses 24 3 2 4 PAET eee 25 3 2 5 Power Supply test Giessen 25 3 2 6 Ko292 Data Cut Test Connettore e a E E EE da 26 3 2 7 Ethernet test conmbedouuvuv5ss4vvrvs Re 27 Revision MS ida 28 Issue A 1 Introduction Guralp Systems Neptune Ocean Bottom System is a state of the art August 2009 multi sensor unit comprising Operation guide a CMG 5T triaxial true2. Cut off hysteresis V Readjite True if this line is internal to the system dl ase Property Type Current value Change R E i low voltage threshold NAH Low voltage cut off threshold V Read writ Refresh Return to front page 6 Issue A Operation guide Most of the features of this screen duplicate those on the main Digital I O display A Refresh button provides quicker access to the latest figures if a line is being monitored in real time The two fields not present on the main Digital I O display allow the configuration of under voltage monitoring If a voltage is typed into the Lower voltage cut off threshold field and the Set button pressed the system will cut power to the associated subsystem if the supply voltage falls below the figure entered In order to prevent rapid switching when the supply power is very close to the threshold a hysteresis value can also be entered The supply voltage must rise to the sum of the threshold voltage and the hysteresis voltage before power to the associated subsystem is restored The allocation of lines to hardware components for the CMG Neptune OBS is as follows Line system name Function Data_Out Main 48V power feed conditioned Aux power Auxiliary battery Port A Power to embedded DM24 7 Sensor power Power to CMG 1T sensor Ext0 power Power to CMG 5T sensor Ext1 power Power to D P G Port D Power to Aqu
3. They are very widely available as are suitable mating connectors Cable Plug Function Associated Seacon pin Red Red ve 24 Green Green ve 19 Note if the power supply cable is shielded the cable braid should be connected to pin 13 of the Seacon connector August 2009 25 MAN OBS 0002 3 2 6 RS232 Data Out test connector This is a standard DE9E TLA 574 sub miniature D sub line sockets conforming to DIN 41652 and MIL DTL 24308 They are very widely available as are suitable mating connectors Pin Function Associated Seacon pin not connected Transmitted data 11 Received data 13 not connected Ground 1 not connected not connected not connected O 0 N O 01 FPF WO N e not connected Z oo o O EO Wiring details for the compatible plug 9 8 7 6 DE9M as seen from the cable end Note The embedded CMG EAM is considered to be the DTE for this connection so Transmitted refers to data from the CMG EAM and Received refers to data received by the CMG EAM 26 Issue A Operation guide 3 2 Ethernet test connector This is a standard 8P8C modular line jack e ali conforming to ANSI TIA 968 A and IEC or 60603 They are very widely available as sij are suitable mating connectors Pin Function Associated Seacon pin 1 Rx 22 2 Rx 17 3 TX 23 4 not connected 5 not connected 6 Tx 18 7 notconnected 8 not connected Note the connector is wired in MD
4. Z Mass Locking lock the masses before moving it O 249 Success Vertical Mass Locked Turned Mass Position 102 N S Mass Locking 7 249 success North South Mass Locked Not Turned Mass Position 102 E W Mass Locking 10 249 success East West Mass Locked Not Turned Mass Position 102 42 these numbers show the current bowl 42 tilt value 41 39 40 Limit Switch 1101111 lnow 1110 1 0 I 1 39 11011111 40 11011111 40 11011111 40 11011111 m LTL 41 11011111 42 1 1 1 1 1 1 1 1 TiltNull set 41 2 and these the rotation value l Tilt Rotatel X Y 0 0 eo 260 lt lt Bowl Datum x 3 y 258 x 4 Y450 bowl now at datum and a new target 0 orientation has been calculated 11 48 84 120 bowl tilting Issue A Operation guide August 2009 154 190 224 261 295 3341 260 404 440 455 453 451 O 1 5 10 12 16 18 this sequence will continue changing gradually X y249 Te bowl rotating Several hundred lines of output have been suppressed I9 60 60 60 60 60 60 ol Tilt 61 451 451 449 446 61 61 61 61 62 62 62 this sequence will continue changing gradually Rotate 452 x50 ake X 51 T78 x 20 x50 y20 R447 1 approximation achieved 2 calculated bowl tilting bowl rotating Several hundred lines of output have been suppressed 76 76 76 76 76 13 MAN OBS 0002 Fa aa 447 63 44 x62 y 43
5. broadband feedback strong motion 28 accelerometer a CMG 1T triaxial true broadband 360s 50Hz feedback seismometer a CMG DM24 7 24 bit seven channel digitiser module a CMG EAM enhanced acquisition and communications module and GSL s unique Virtual Sphere microprocessor controlled orientation and levelling system all encased in a cast titanium sphere capable of withstanding immersion in up to 3 000 metres of water A submersible 25 pin connector provides inputs for an external Nortek Aquadopp triaxial Doppler effect current flow rate meter an external differential pressure gauge main 48V power and an auxiliary 12V back up battery as well as data outputs via RS232 and TCP IP Ethernet The integrated CMG EAM provides a single easy to use web based interface for control configuration and monitoring of all components Sophisticated power control electronics provide fine grained monitoring and control of power consumption minimising current requirements and maximising battery life The CMG Neptune OBS embodies more than twenty years of experience in designing and deploying ocean bottom seismometry systems in some of the harshest and most challenging environments on the planet MAN OBS 0002 2 Operation Guide 2 1 Principals of operation The CMG Neptune OBS contains two seismometers a CMG 5T strong motion triaxial accelerometer and a CMG 1T weak motion triaxial seismometer F
6. system This can be accessed via the configuration interface of the CMG EAM using a web browser 4 Issue A Operation guide August 2009 The configuration interface of the CMG EAM is described in detail in MAN EAM 0001 The following description assumes some familiarity with the use of this interface To access the power monitoring and control facility select Digital I O from the Control menu Main menu Ocean Bot eam2217 Deploy Deploy OBS sy levels the bov unlocks and ce masses System events system status Version and serial numbers Gun AAA Unlock OBS AA AAA 4 Port A sensor GSLA 1717 Reboot Unlock each o Services components Tamper lines The following screen will appear I O line status I O line status and control Status Operations Output low off 11 54 View details settings Aux power Set to input Auxiliary battery power Set output low switch off Set output high switch on 11 53 View details settings Data Out Set to input Data Out power 0 107 Set output low switch off Set output high switch on Output high on voltage 11 53 View details settings Bus Voltage V i Em Ethernet power set to input Ethernet auxilia ower i ry p Current A 0 001 Set output low switch off nm Set output high switch an 0 01 Power W Output low off 53 View details settings Bus Voltag
7. I mode which is suitable for connection to a hub switch or router In order to make a direct connection to for example a PC s network adaptor it may be necessary to use a cross over adaptor Note the colour codes of the individual cable cores conform to TIA EIA 568 B 8 654321 Wiring details for the compatible socket as seen from the back e g when soldering August 2009 27 MAN OBS 0002 4 Revision history 2009 08 19 A New Document 28 Issue A
8. Test harness pin outs 3 2 1 Overview The test harness is shown below Pin numbers in italics refer to the pins in the Seacon connector as documented in Section 3 1 on page 20 The individual connectors are described in the following sections Aquadopp Pin Function 8 ve from pin 4 gt OV from pin 2 2 TxD from pin 7 3 RxD from pin 6 DPG Pin Function 4 Vref from pin 5 2 Vref from pin 3 DPG from pin 10 1 DPG from pin 16 Battery Red tve from pin 25 Green ve from pin 20 Power Feed Red tve from pin 24 Green ve from pin 19 Ethernet Standard TIA EIA 568 wiring from pins 17 18 22 amp 23 Data Out Pin Function N 2 TxD from pin 11 3 RxD from pin 12 5 Ground from pin 1 22 Issue A 3 2 2 Aquadopp test connector These are standard DE9M TLA 574 sub miniature D sub plugs conforming to DIN 41652 and MIL DTL 24308 They are very widely available as are suitable mating connectors Pin Function not connected RS232 transmitted data RS232 received data not connected Ground not connected not connected Supply voltage ve O 0 N O O88 FPF WO NH not connected Operation guide Associated Seacon pin Note The Aquadopp is considered the DTE and the Neptune OBS the DCE for this connection so transmitted refers to data from the Aquadopp and received to data received by the Aquadopp Note the supply lines ar
9. adopp Note both the incoming 48V power and the auxiliary battery power are both fed through a power conditioning circuit before being routed to the power control sensors so it is the conditioned voltage that is monitored not the supplied voltage Note The auxiliary battery will not be used unless the output for Aux power is set high in order to conserve battery life during shipping and deployment The status of this line immediately after the unit boots can be configured see Section 2 2 2 on page 8 August 2009 7 MAN OBS 0002 2 2 2 Configuration To configure the user names of the power lines select All options from the Configuration section of the main menu Removable disk All options Hostname save Restore Data transfer recording Disk recording Serial ports Services From the resulting menu select GPIO labels and power switch settings The following screen is displayed from where it is possible to edit the user labels of the power lines Press the Submit button after making any changes GPIO labels This table specities the labels used for each of the GPIO lines C aa Erre os Below the GPIO labels configuration section a number ot drop down menus allow you to configure the state on or off which each line will assume when the unit boots when power is first applied or after a power interruption This part of the screen is shown overleaf For each line select
10. cking db N S Mass Centring 8 249 success 204 59 51695 sloj 2047 B7 s1122 56 2047 55 342 54 1582 53 823 52 2047 51 2047 50 4 49 Success 1 PRPRPRPRPRP PPE 1 HE EEEBEBEBE HE EEEBEBEBEBEBE HE EEEBEBEBEBEBE HE EEEBEEBEEBE HE EEEEEBEBEBE North South Mass Unlocked Mass Position 0 k dzo O 1 Jo 1 O 1 72 1 O 1 54 1 O 1 AA 1 O 1 40 2 0 1 0 1 O L 3U 2 O 1 22 1 O 1 za 2 O Centred Not Turned Issue A Operation guide E W Mass UnLocking 10 249 success E W Mass Centring sis 2 59 EL bih 1 1 1 128 1 0 2047 58 11 L1 1 T 11 96 1 0 254 57 11111111 72 1 0 1379 56 11111111 54 1 0 85 55 success East West Mass Unlocked Centred Not Turned Mass Position a Or O LIL Command Deploy run successfully Generated at 2009 08 18T11 19 11Z by digitiser control cgi 2 0 2 Portions of output copyright c 2009 Guralp Systems Ltd 2 4 Recovery August 2009 The CMG EAM embedded in the Neptune OBS has a facility for automating the instrument pre recovery sequence which involves locking the instrument masses prior to any potentially violent movements This is accessed via the configuration interface of the CMG EAM using a web browser The configuration interface of the CMG EAM is described in detail in MAN EAM 0001 The following description assumes some familiarity with the use of this interface To initiate the deployment s
11. d Return to Datum return the bowl leveller to the home position The entire sequence can be run in the correct order by clicking the Run button in the Recover box This produces diagnostic output to signify the progress of the operation Typical output is reproduced here with explanatory notes 18 Issue A Operation guide August 2009 Digitiser Control GSLA 1717 Recover GSLA 171700 CMG1T2MCommand Mode 1 blocks in buffer 255 blocks free Guralp Systems Ltd DM FW v 106 mgs 17 08 09 OK L747 RECOVER Lock sensors for recovery y n 2 Y Z Mass Locking 86 249 success Vertical Mass Locked Turned Mass Position 102 N S Mass Locking 82 249 success North South Mass Locked Not Turned Mass Position 102 E W Mass Locking 86 249 success East West Mass Locked Not Turned Mass Position 102 41 41 41 40 39 Build 33 39 Limit Switoh 14 0 14 1 inow 11101011 39 39 40 40 41 41 41 HE EEEEEE HO OOO heee HE EEEEEE HE EEEEEE HE EEEEEE 1 1 1 1 1 ih 1 TiltNull set 42 1 Tilt Rotatel X Y 1 1 3 250 Ok L717 Command Recover run successfully Generated at 2009 08 18111 19 11Z by digitiser control cgi 2 0 2 Portions of output copyright c 2009 Guralp Systems Ltd 19 MAN OBS 0002 3 Appendices 3 1 Main Connector pin out This is a SEACON MIN M 25 FSS 25 pin D male connector T A A suitable
12. e mm Extd power ge V set to input External power outlet o Current HARPER p Current A 0 001 Itput itch off Set output high switch on 0 02 nn i power Ti marap TA MAN OBS 0002 The screen is divided into sections each dealing with a different current switch measurement point known as a line Each line has a system name and a user name User names can be configured individually see Section 2 2 2 on page 8 For example the first line displayed in the previous diagram has a system name of Aux power and a user name of Auxiliary battery power Next to the name of each line is displayed the line s status low off or high on A line can be turned on and off with the Set output low and Set output high buttons Note the Neptune OBS systems are shipped with many power lines set low turned off in order to avoid unintentional battery drain The default status of each line at power up can be configured see Section 2 2 2 on page 8 Below the status is displayed the measured voltage current and power The buttons marked View details settings displays a screen similar to the following The screen for Aux power is used for illustration Line details Auxiliary battery power Line ID Aux power I O control Driver typejOutput only Set output high switch on Properties Property cutoff_hysteresis am P ead write 0 000
13. e shielded with the cable braid connected to pin 3 of the Seacon connector Note the data lines are shielded with the cable braid connected to pin 8 of the Seacon connector August 2009 Wiring details for the compatible socket DE9F as seen from the cable end 23 MAN OBS 0002 3 2 3 Differential Pressure Gauge test connector These are standard DE9F TIA 574 sub miniature D sub line sockets conforming to DIN 41652 and MIL DTL 24308 They are very widely available as are suitable mating connectors Pin Function Associated Seacon pin 1 DPG 16 2 Vref 9 3 DPG 10 4 Vref 5 5 not connected 6 not connected 7 not connected 8 not connected 9 not connected Note the and lines are shielded with the cable braid connected to pin 21 of the Seacon connector Note the reference lines are shielded with the cable braid connected to pin 15 of the Seacon connector Wiring details for the compatible plug DE9M as seen from the cable end 24 Issue A Operation guide 3 2 4 Battery test connectors These are standard 4mm banana plugs They are very widely available as are suitable mating connectors Cable Plug Function Associated Seacon pin Yellow Red ve 25 Green Green ve 20 Note if the battery cable is shielded the cable braid should be connected to pin 14 of the Seacon connector 3 2 5 Power Supply test connectors These are standard 4mm banana plugs
14. equence choose the entry for the sensor from the Control menu the name of this entry will change with the serial number of the component Main menu Ocean Bai eam2217 Deploy System events System status Deploy OBS sy levels the bov unlocks and ce Version and serial masses numbers Gum Digital I O Unlock OBS C Unlock each o components Services Tamper lines 17 MAN OBS 0002 Scroll down the resulting page to the section headed Ocean Bottom Systems The following screen is displayed Ocean Bottom Systems Hepar Return to Datum Level P bee ledd Returns bowl leveller to ke Level OBS bowl datum position unlocks and centres the P masses Bowl Single bowl v Run Pun Pan Unlock OBS Components Lock OBS Components p Centre OBS Components Unlock each of the OBS Lock each of the OBS Centre each of the OBS components components components Run Run Pun Recover Align bowl Recover OBS system locks the masses and returns bow leveller to datum Align OBS bowl Single bowl lv Run In normal use only Deploy described in section 2 3 on page 10 and Recover described here will be reguired Both of these run seguences of individual commands and it is possible to run any of these individual commands from this screen The recovery seguence is Lock OBS Components lock each sensor in turn an
15. mating connector is provided A Y Additional connectors are available from G ralp Systems Ltd or from Seacon directly at http www seaconbrantner com AN gt l The pin use is illustrated below and tabulated overleaf supply ve supply ve s data TX data RX Aguadopp Vref Vref a 01 co O N Wh Bb SEACON CONNECTOR DPG Battery ve Battery ve Power Supply ve Power Supply ve RS232 IX 1 RS232 RX 12 RS232 GND lt E Ethernet TX Q Ethernet TX Ethernet RX Ethernet RX 20 Issue A Operation guide Pin Function O OA N O Ol BR WO N e N NB NN NO FF FP FF RP FR PF PF Ra O N e 0 O N O GG A O N e O 24 29 August 2009 EAM data ground Aquadopp positive supply V Aguadopp supply ground Aguadopp power cable braid shield DPG positive reference voltage Vref Aquadopp receive data Aquadopp transmit data Aquadopp data cable braid shield DPG negative reference voltage Vref DPG EAM DATA OUT transmit data EAM DATA OUT receive data main power supply cable braid shield battery supply cable braid shield DPG reference voltage cable braid shield DPG Ethernet Rx Ethernet Tx main power supply ve battery ve DPG signal cable braid shield Ethernet Rx Ethernet Tx Main power supply ve battery ve Wiring details for the compatible socket as seen from the cable end 21 MAN OBS 0002 3 2
16. mponents Unlock each of the OBS Lock each of the OBS Centre each of the OBS components components components Run Run Run Recover dd Recover OBS system locks the masses and Align OBS bowl returns bowl leveller to Single bowl datum LI Fun In normal use only Deploy described here and Recover described in Section 2 4 on page 17 will be required Both of these run sequences of individual commands and it is possible to run any of these individual commands from this screen The deployment sequence is Level level the OBS bowl Align Align the OBS bowl to magnetic north Unlock OBS Components unlock each sensor in turn and Centre OBS Components centre each sensor masses in turn The entire sequence can be run in the correct order by clicking the Run button in the Deploy box This produces a large amount of diagnostic output to signify the progress of the operation The bowl alignment procedure is iterative and several passes may be needed to achieve an acceptable attitude Typical output is reproduced here with explanatory notes in blue August 2009 11 MAN OBS 0002 12 Digitiser Control GSLA 1717 Deploy GSLA 171700 CMG1T2M Command Mode O blocks in buffer 256 blocks free Guralp Systems Ltd DM FW v 106 mgs 17 08 09 Build 33 ok 1717 DEPLOY Deploy System y n v x 3 y 258 the bowl is not aligned so we will
17. needs to be moved locking the sensor masses if not already locked and then entering an iterative sequence of tilts turns and orientation measurements until the bowl is precisely level The instrument masses are then individually unlocked and centred This whole sequence is triggered via controls within the configuration interface of the CMG EAM using a web browser The configuration interface of the CMG EAM is described in detail in MAN EAM 0001 The following description assumes some familiarity with the use of this interface To initiate the deployment sequence choose the entry for the sensor from the Control menu the name of this entry will change with the serial number of the component Main menu Ocean Bol eam2217 Deploy System events System status Deploy OBS sy levels the bov unlocks and ce Version and serial iE numbers Pen Digital IVO Unlock OBS C Port A sensor GSLA 1717 sa ti me Services components TT TET linac Scroll down the resulting page to the section headed Ocean Bottom Systems The following screen is displayed 10 Issue A Operation guide Ocean Bottom Systems AEP ey Return to Datum Level ie ee red eral Returns bowl leveller to Level OBS bowl datum position unlocks and centres the Masses Bowl Single bowl Bowl Single bowl Run Run Unlock OBS Components r Lock OBS Components r Centre OBS Co
18. the desired start up state then click the Submit button to save your changes Note no immediate changes to individual lines will be made as a result of using this feature The settings only affect the lines after a re boot of the unit 8 Issue A Operation guide Powerup state This table sets the initial condition for the power switches following a system power up WARNING Changing these settings only makes sense on lines where the hardware is configured to powerup in the disabled state Usually OBS systems On other systems changing the setting could result in startup power transitions that might confuse external equipment System name Powerup state Power Off Power Off z Power Off Power On o Power On 0 Power On o Z Power On o Power On Power On o Home Submit Note The auxiliary battery will not be used after the unit is rebooted unless the power up state for Aux power is set to Power On in order to conserve battery life during shipping and deployment The battery can still be turned on and off using the appropriate controls on the I O Line Status screen as described in Section 2 2 1 on page 4 August 2009 9 MAN OBS 0002 2 3 Deployment The CMG EAM embedded in the Neptune OBS has a facility for automating the instrument deployment sequence which involves checking the position of the OBS bowl the internal moveable instrument carrying platform and if it
19. ull details and specifications of the CMG 5T components are contained in G ralp manual MAN 050 0001 available for download from http www guralp com documents MAN 050 0001 pdf Full details and specifications of the CMG 1T components are contained in G ralp manual CMG 10BS available for download from http www guralp com support manuals pdf 10BS pdf The outputs from these two systems along with the output of the differential pressure gauge are connected internally to a CMG DM24 7 digitiser module Full details and specifications for this module are contained in G ralp manual MAN D24 0004 available for download from http www guralp com documents MAN D24 0004 pdf The outputs from the CMG DM24 7 and the Aquadopp flow meter are connected internally to an embedded CMG EAM acquisition and communication module Full details for this module are contained in G ralp manual MAN EAM 0001 available for download from http www guralp com documents MAN EAM 0001 pdf The EAM software has been extended to include functions specific to the CMG Neptune OBS These are an enhanced power monitoring and control system and deployment and recovery sequence automation These functions are described in the sections that follow 2 2 Power monitoring and control 2 2 1 Operation The CMG Neptune OBS includes a power monitoring and control facility which can measure and switch the current flowing to and from the various components of the
20. x62 y 43 R432 447 447 443 442 441 439 437 435 433 x50 vy 50 TIP avi 77 433 50 50 x49 y 50 x49 y 50 R419 434 433 431 430 428 426 424 422 419 x33 y 53 172 77 JI 77 Ta 77 77 77 z 77 77 76 76 76 76 75 76 75 75 75 74 74 74 74 73 73 420 9 35 x27 y 35 x27 y 35 R411 419 419 417 415 413 411 x20 y 32 T71 14 Issue A Operation guide August 2009 73 74 73 73 72 72 411 19 31 x18 y 31 x19 y 31 R404 411 411 409 407 405 x14 y 28 T70 TZ 72 12 Ve 12 ql 74 405 ie 21 x12 26 xli VG R400 404 404 402 400 x8 y 24 T6 LI 12 fel 70 71 70 70 70 70 se 68 69 400 6 kl a UT zo selo R377 400 400 397 x4 y 16 T66 69 69 69 68 68 68 68 67 67 3398 Z 11 x2 y 12 x2 y 11 lt Bowl Level SingleBowl System Levelled success Z LOCKED N S LOCKED E W LOCKED Tilt Rotate X x 67 398 3 liki Z Mass UnLocking now unlock the masses 54 249 15 MAN OBS 0002 16 Z Mass Centring 59 248 61 247 59 246 57 245 54 244 53 243 57 242 57 241 56 240 Bo 239 60 238 GU 237 ol 236 oh 235 61 234 6l 233 61 232 bo Zol 56 230 56 229 57 228 DO 22 59 226 26 225 56 224 59 223 OL 222 59 221 59 220 54 219 57 218 od I 60 216 32 21l Success 85 59 Success the first number is the current drawn by the locking motors the second a simple count down timer Vertical Mase Unlocked Centred Turned Mass Position N S Mass UnLo
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