Samson TROVIS SAFE 3730 Series Operating Instructions Manual
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Samson TROVIS SAFE 3730 Series Operating Instructions Manual

Samson TROVIS SAFE 3730 Series Operating Instructions Manual

Electropneumatic positioner expertplus valve diagnostics
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Series 3730
TROVIS SAFE 3730-6 Electropneumatic
Positioner
EXPERTplus Valve Diagnostics
Operating Instructions
EB 8389-1S EN
Firmware version 1.1x
Edition May 2015

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Summary of Contents for Samson TROVIS SAFE 3730 Series

  • Page 1 Series 3730 TROVIS SAFE 3730-6 Electropneumatic Positioner EXPERTplus Valve Diagnostics Operating Instructions EB 8389-1S EN Firmware version 1.1x Edition May 2015...
  • Page 2 Definition of signal words DANGER! NOTICE Hazardous situations which, if not Property damage message or mal- avoided, will result in death or serious function injury Note:  WARNING! Additional information Hazardous situations which, if not avoided, could result in death or seri- Tip: ous injury Recommended action...

  • Page 3: Table Of Contents

    Contents Description ....................7 General ......................7 Start-up ......................9 Diagnostic functions ..................10 1.3.1 Type of application..................11 1.3.2 Assessment ....................11 Monitoring ....................13 Status messages ...................13 2.1.1 Resetting status messages ................13 2.1.2 Condensed state ..................17 Logging .......................18 Data logger ....................21 Permanent data logging ................21 Triggered data logging .................22 3.2.1 Triggered by condensed state ................22...
  • Page 4 Contents Valve position x histogram ................41 Analysis and monitoring ................42 Resetting single status messages ..............42 Set point deviation e histogram ..............44 Analysis and monitoring ................45 Resetting single status messages ..............46 Cycle counter histogram ................49 Analysis and monitoring ................50 Resetting single status messages ..............50 Leakage sensor ...................53 Start-up of the leakage sensor ...............54 9.1.1...
  • Page 5 Contents 13.2 Resetting single status messages ..............87 SIL operator test ..................88 14.1 Analysis and monitoring ................90 Binary input ....................91 Dynamic HART variables ................93 ® Appendix ....................95 17.1 Code list ......................95 17.2 Error messages and recommended corrective action ........102 17.3 Diagnostic data points saved in a non-volatile memory .........107 17.4 Resetting parameters ..................108 EB 8389-1S EN...
  • Page 6 Overview On/off service Throttling service No configuration Configuration No configuration Configuration required for required for required for required for monitoring diagnosis monitoring diagnosis Travel histogram Data logger Travel histogram Data logger Section 6 Section 3 Section 6 Section 3 Set point deviation Valve signature Set point deviation On/off diagnosis...

  • Page 7: Description

    EXPERTplus allows the parameters to be viewed or changed using the TROVIS- VIEW 4 software or DD/DTM/eDD. TROVIS-VIEW 4 · SAMSON operator inter- face used to configure various SAMSON de- vices − DTM · Device type manager to describe the device and communication properties −...
  • Page 8 Description Description Initialization mode â â â MAN/MAN2 â Initialization including valve signature ß à Later recording of reference graphs â Operating mode = MAN â â Zero Valve signature (D1) Valve signature (D1) All reference values are overwritten! Code 81 Code 81 ß...

  • Page 9: Start-Up

    Description 1.2 Start-up The monitoring of friction, supply pressure, leakage, actuator springs, course of end po- The positioner must be initialized to use the sition and zero point shift requires additional full scope of the valve diagnostics. During ini- reference tests of the valve signature to be tialization the positioner adapts itself optimal- performed.

  • Page 10: Diagnostic Functions

    Description 1.3 Diagnostic functions NOTICE Kp level changes affect the set point There are two different types of diagnostic deviation. functions: 1. Monitoring functions After changing the proportional-action coef- Data are compiled, saved and analyzed ficient 'Kp level', we recommend to recali- by the positioner while the process is brate the fine filter in the positioner.

  • Page 11: Type Of Application

    Description 1.3.1 Type of application Different diagnostic functions are available depending on the type of application select- ed in EXPERTplus. The types of application 'Control valve' and 'On/off valve' are available. Depending on the type of applica- tion selected, the positioner behaves differ- ently in the automatic mode (AUTO): −...
  • Page 12 Description Description Table 1: Diagnostic functions and test analysis Control On/off Diagnostic functions valve valve Assessment See section Monitoring Data logger • • Depending on trigger status 3 on page 21 selected Valve signature • − Change in friction 4 on page 27 −...

  • Page 13: Monitoring

    Monitoring 2 Monitoring an initialization has not yet been suc- cessfully completed. 2.1 Status messages You can view these messages in TROVIS- VIEW 4 in the Diagnostics folder (> Monitor- The valve diagnostics integrated into the po- ing) and its subfolders. The 'Positioner sta- sitioner generates classified status messages.
  • Page 14 Monitoring − Resetting measured data does not cause Reset to default settings the diagnostic parameters and reference Code 36 - DS value to be reset as well. − Parameters are reset as described in − The positioner does not need to be re-ini- Section 17.4.
  • Page 15 Monitoring Monitoring Table 2: Resetting the diagnosis Resetting Code 36 single status messages Diag Reference Valve signature graphs Leakage sensor Manufacturer reference Process reference Data logger Configuration and measured values Valve signature Signal pressure(x) Measured values Course of supply pressure Configuration Measured values Friction(x) Measured values...
  • Page 16 Monitoring Resetting Code 36 single status messages Diag Full stroke test (FST) Configuration and NO* YES measured values * Except for 'Sampling time' and 'Max. test duration' parameters Alarm settings See uSec.17.4 Status classification according to NAMUR 107 All logged messages, see Section 2.2 Operating hours counter Device in operation...

  • Page 17: Condensed State

    Monitoring 2.1.2 Condensed state The condensed state can be read in the posi- tioner display in Code 48 - d6. See Table To provide a better overview on the condi- tion of the positioner, all status messages are Condensed state at the fault alarm output summarized in a condensed state which is made up from a summary of all classified The condensed state also be read out at the...

  • Page 18: Logging

    Monitoring Device settings > Alarm settings Note:  − Fault alarm at condensed state 'Function Logging can only be deactivated when check' (Code 32): Yes the associated status classification is set to 'No message'. 3. − Error message in case of 'Maintenance re- quired' and 'Out of specification' con- densed states (Code 33): Yes Device settings >...
  • Page 19 Monitoring The following messages are not logged if they are generated due to a hardware error: − Packing leakage − Pneumatic leakage − Manipulated variable range limitation − Course of end position − Positioner-valve linkage − Manipulated variable range − Change in manipulated variable range In this case, only the original hardware error is logged: −...
  • Page 20 Monitoring Data logger Function â â Permanent Triggered â â Sampling time Triggered by â Start â â â â â Solenoid Con- w or solenoid w, x, e valve/ densed valve/forced or p forced state venting venting â â â...

  • Page 21: Data Logger

    Data logger 3 Data logger 3.1 Permanent data logging The data logger records the measured vari- The measured variables are logged at the ables (valve position x, set point w, set point rate defined in 'Sampling time' and saved in deviation e and signal pressure p ).

  • Page 22: Triggered Data Logging

    Data logger Defining parameters Defining parameters 1. Select 'Permanent' (Function). 1. Select 'Triggered' (Function). 2. Enter sampling time. 2. Select the triggering event. 3. Start data logger. 3. Enter sampling time. The 'Test information' status indicates 4. Start data logger. 'Test active'.

  • Page 23: Triggered By Set Point, Valve Position, Set Point Deviation Or Signal Pressure

    Data logger 'Trigger condition' = Increasing signal/ − Trigger lead time: upper band value exceeded 0.0 s to 100 x 'Sampling time', [20.0 s] − Triggered by condensed state: No message, w, x, y, e Function check [Maintenance required], Maintenance demanded, Out of specifica- tion, Failure 4.

  • Page 24: Triggered By Binary Input

    Data logger 'Trigger condition' = Band entry − Trigger condition: [Decreasing signal/lower band value undercut], Increasing signal/up- w, x, y, e per band value exceeded, Band exit, Band entry 3. − Sampling time: 0.2 to 3600.0 s, [1.0 s] 4. − Start data logger Upper band limit = Trigger value + ½...

  • Page 25: Triggered By Internal Solenoid Valve/Forced Venting

    Data logger 3.2.4 Triggered by internal so- tions defined in 'Triggered by internal sole- noid valve/forced venting“ or 'Triggered by lenoid valve/forced set point' are met. venting Diagnostics > Data logger This setting is only active when an internal − Function: Triggered solenoid valve/forced venting is installed in −...
  • Page 26 Data logger Valve signature Requirements: – Actuator: Single-acting – Type of application: Control valve Only applies to first start-up after reset with Code 36 – DS or Std. â Initialization including valve signature â à Valve signature canceled Start initialization â...

  • Page 27: Valve Signature

    Valve signature 4 Valve signature Requirements 1. A single-acting actuator is mounted on The valve signature plots the signal pressure the valve. as a function of valve position x. 2. The valve operates as a control valve. All diagnostic functions dependent on the signal pressure are based on the valve sig- Device settings >...

  • Page 28: Reference Graphs

    Valve signature 4.1 Reference graphs The reference graph can also be plotted sep- arately outside initialization. During the plotting of the reference graph 1. Switch to manual mode. (Fig. 2), the valve is moved very slowly from 2. Select 'Sensitivity' from the drop-down the end position at which no pressure is ap- list.

  • Page 29: Valve Signature, Signal Pressure(X)

    Valve signature position in closed-loop operation. The − 'Detected lower spring range value': Sig- valve might be jammed. nal pressure p when the actuator is (2) The minimum valve position without filled with the minimum amount of air tight-closing is above 4 %. −...

  • Page 30: Analysis And Monitoring

    Valve signature 4.2.1 Analysis and monitoring 2. Set the limit for zero monitoring in con- trol valves with closed position ATC (air If the monitoring line has a smaller gradient to close). than the reference line, this pinpoints to a re- 3.

  • Page 31: Course Of Supply Pressure

    Valve signature 4.3 Course of supply pressure Defining parameters 1. Define 'Recording threshold'. During control-loop operation, five values of 2. Enter limits for monitoring. See Sec- the supply pressure are recorded and saved tion 4.3.1. in a circular buffer. A new supply pressure is recorded and saved in the circular buffer 3.

  • Page 32: Analysis And Monitoring

    Valve signature Device settings > Alarm settings > Status − Min. supply pressure classification > Supply pressure − Time stamp of min. supply pressure − Permissible limit exceeded:  − Max. supply pressure − Time stamp of max. supply pressure − Too high: , [ ], −...

  • Page 33: Valve Signature, Friction(X)

    Valve signature 4.4 Valve signature, friction(x) Device settings > Alarm settings > Status classification > Valve The positioner calculates the friction during Change in friction closed-loop operation and compares it with − Higher in total range: [ the friction determined when the reference −...

  • Page 34: Analysis And Monitoring

    Valve signature 4.4.1 Analysis and monitoring 4.5 Resetting single status mes- sages The positioner generates the 'Change in fric- tion' message with the selected status classifi- All messages generated by the valve signa- cation. The friction for the total range of the ture can be reset together by selecting and valve, the mid valve position and for the executing "Reset 'Pressure sensor monitoring...
  • Page 36 Valve signature On/off valve Prerequisite: – Type of application: On/off valve â Operating point, Limit fail-safe position, Limit operating point â Travel time assessment limit Valve end position limit Status classification (NE 107) Define parameters for partial stroke Breakaway time increasing/decreasing test, see Section 12 Transit time increasing/decreasing...

  • Page 37: On/Off Valve

    On/off valve 5 On/off valve If the set point ( ) is above 'Operating point limit' when the automatic mode The travel range of open/close (on/off) is starts, the valve ( ) moves to the operating defined by the fail-safe position and the op- point.

  • Page 38: Diagnostics For On/Off Valve

    On/off valve The PST diagnostic parameter 'Lower range − Fail-safe action limit (Code 49 - h2): 0.0 to value' must be within the defined position ± 20.0 %, [12.5 %] 'Tolerance limit' for the partial stroke test to − Operating point limit (Code 49 - h5): start.

  • Page 39: Analysis And Monitoring

    On/off valve − The current 'Transit time (decreasing)' dif- Device settings > Alarm settings fers from the reference value by the − Travel time assessment limit (Code 49 - h7): amount entered in 'Travel time assess- [0.6] to 30.0 s ment limit'.

  • Page 40: Resetting Single Status Messages

    On/off valve 5.3 Resetting single status mes- sages The message and the limit values are reset by selecting and executing "Reset measured 'On/off valve' values". The positioner saves the reference analysis and two further test analyses. The analysis of the oldest test is deleted when another test is performed.

  • Page 41: Valve Position X Histogram

    Valve position x histogram 6 Valve position x histogram − 'Number of measurement points': Total number of values recorded during the The valve position histogram is a statistical 'Monitoring duration'. analysis of the plotted valve positions. The − 'Monitoring duration' histogram provides information about where The measured data are saved every 24 the valve mainly spends the majority of its...

  • Page 42: Analysis And Monitoring

    Valve position x histogram 6.1 Analysis and monitoring Note:  Changing 'Sampling time' causes all Analysis of the histogram for control valves existing measured values to be delet- starts one hour after the monitoring period ed from the circular buffer. begins.
  • Page 43 Valve position x histogram of the histogram and the short-term monitor- ing. By selecting and executing the command "Reset 'Short-term valve position x histo- gram", the diagnostic parameters and mea- sured data in the Short-term monitoring folder are reset. Diagnostics > Service/maintenance > Reset −...

  • Page 44: Set Point Deviation E Histogram

    Set point deviation e histogram 7 Set point deviation e histo- − 'Number of measurement points': Total number of values recorded during the gram 'Monitoring duration'. The set point deviation histogram contains a − 'Monitoring duration' statistical analysis of any set point deviations The measured data are saved every 24 recorded.

  • Page 45: Analysis And Monitoring

    Set point deviation e histogram 7.1 Analysis and monitoring Note:  Changing 'Sampling time' causes all Ideally, the set point deviation should be existing measured values to be delet- nearly 0 %. ed from the circular buffer. Set point deviations greater than 1 % follow- ing in quick succession pinpoint to a limita- Defining parameters tion of the upper operating range.

  • Page 46: Resetting Single Status Messages

    Set point deviation e histogram 7.2 Resetting single status mes- sages The 'Seat leakage', 'Manipulated variable range limitation' and 'Positioner-valve link- age' messages can be reset by selecting and executing the command "Reset 'Set point de- viation e histogram" or "Reset 'Short-term set point deviation e histogram".
  • Page 48 Set point deviation e histogram Cycle counter histogram Stem seal â â â â â Self-adjusting Adjustable Other, -/- Bellows seal â Max. cycle count â â â â â Status classification (NE 107) Status classification (NE 107) External leakage possibly to be External leakage possibly to be expected soon expected soon...

  • Page 49: Cycle Counter Histogram

    Cycle counter histogram 8 Cycle counter histogram The cycle spans or cycle heights are as- signed to classes. The distribution showing The cycle counter histogram provides a statis- how often the cycle span or height occurred tical analysis of the cycles. As a result, the within a class is shown in a bar graph.

  • Page 50: Analysis And Monitoring

    Cycle counter histogram Short-term monitoring − The number of measured cycle spans ex- ceeds 90 % of the 'Max. cycle count' To recognize short-term changes in the cycle when 'Other' is selected as the stem seal. spans or cycle height, the positioner analyz- es the last 100 cycle heights or cycle spans.
  • Page 52 Cycle counter histogram Leakage sensor Requirements – Positioner accessories identification: Leakage sensor – Activate CLOSED end position: On â Manufacturer reference Process reference User-defined with specified standard conditions with process conditions á â Settling time before sound level Sensitivity sound measurement level lower â...

  • Page 53: Leakage Sensor

    Leakage sensor 9 Leakage sensor 2. The leakage sensor option has been se- lected. By upgrading the positioner with a leakage 3. The tight-closing function has been acti- sensor, it is possible to detect seat leakage vated. when the valve is in the closed position. To 4.

  • Page 54: Start-Up Of The Leakage Sensor

    We recommend performing the manufacturer reference test. On request, it can also be performed by SAMSON and must not be Phase 1 successful: The sound pressure level performed again. In this case, the standard...
  • Page 55 Leakage sensor Phase 2: A 0.30 % band is placed around the last set point that the valve moved to. One third of this band lies in front of the set point that the valve moved to and two thirds of the band lies behind it.
  • Page 56 Leakage sensor − The valve moves to the set points in steps Start-up of 0.1 %. Set points must be rounded up − Enter operating mode (Code 0): Manual to two decimal places. Start-up > Reference graphs > Leakage − User-defined settings can be saved for sensor >...

  • Page 57: Process Reference

    Leakage sensor 9.1.2 Process reference While the process reference test is running, the parameters listed below are automatical- The process reference test (Fig. 11) measures ly deactivated: the response of the leakage sensor to pro- − Activate CLOSED end position cess conditions.
  • Page 58 Leakage sensor fixed points one after the other. After reach- ing a fixed point and after the 'Settling time before sound level measurement' has elapsed, the leakage sensor measures the sound pressure level. Phase 1 successful: The sound pressure level exceeded the adjusted 'Sensitivity sound level' (10 dB) between set points 4 and 5.
  • Page 59 Leakage sensor Phase 3: The valve moves to the set points 3. − Start process reference valid for phase 1 one after the other. This is plotted in a sound level vs. travel graph. The Note:  graph shows where the point of activation is By selecting and executing 'Cancel ref- and to which value the 'Sensitivity sound lev- erence reference' or by pressing the...
  • Page 60 Leakage sensor − Relation 2: Valve position and sound lev- must rise continuously from 'Alarm limit 1' to el at the point where the curve in the 'Alarm limit 3'. 'Leakage detection process reference' During closed-loop operation, the mean graph starts to rise monotonously sound levels while the valve is tightly shut are −...
  • Page 61 Leakage sensor − Slow: The mean value calculated from 9.1.2.3 Monitoring the last 30 sound levels measured during If the determined mean sound level exceeds short-term monitoring (see uSection 9.2) the 'Alarm limit 2', the positioner generates is used for monitoring (Fig. 12: Tight- a 'Seat leakage' message with status classifi- closing event 2 to Tight-closing event 31 cation selected for 'Alarm limit 2 exceeded'.

  • Page 62: Short-Term Monitoring

    Leakage sensor 9.2 Short-term monitoring mean value is saved in the short-term moni- toring. Short-term monitoring provides an insight in- The last 'Mean value' recorded in the short- to short-term changes in the sound level term monitoring is indicated. while the valve is tightly shut. The positioner saves the mean values of the Data are recorded in the background re- sound level and valve travel in a circular buf-...

  • Page 63: Resetting Single Status Messages

    Leakage sensor 9.2.3 Resetting single status 9.3 Long-term monitoring messages To obtain a sound level trend over a long pe- riod of time, the long-term monitoring con- The short-term monitoring (diagnostic param- tains all the mean values saved in the short- eters, measured data and analysis) can be re- term monitoring since the last reset: set by selecting and executing the command...

  • Page 64: Sound Level(X)

    Leakage sensor 9.4 Sound level(x) 9.4.2 Resetting single status messages The sound level monitoring is shown in a his- togram. The distribution of recorded sound The measured data of the sound level moni- levels within fixed classes of valve position x toring are reset by selecting and executing is revealed.
  • Page 66 Leakage sensor Course of end position Prerequisite – Activate CLOSED end position: On â Recording threshold â Alarm settings (NE 107) Course of end position x [%] t [s] Valve signature complete? Section 4.1 ß NO YES â à à First zero point = Subsequent zero calibration over Reference...

  • Page 67: Course Of End Position

    Course of end position 10 Course of end position threshold' from the last value, the data of the new zero point are saved. The course of end position is used to detect A graph of the recorded valve positions at an alternating zero point or a creeping zero the lower end position is plotted over time.

  • Page 68: Analysis And Monitoring

    Course of end position not exceed the 'Zero limit' (Code 48 - Device settings > Positioner > Transfer d5). characteristic or Transfer characteristic on/ If the analysis of course of the end position − Activate CLOSED end position (Code 14): pinpoints to a fault, the positioner generates −...

  • Page 69: Valve Dead Band

    Valve dead band 11 Valve dead band the test range. The response of the valve po- sition x to the change in set point (∆w) is The difference in set point w that causes a plotted in a graph. minimal change in the valve position x is The dead band is analyzed in the positioner termed ‘dead band’.

  • Page 70: Resetting Single Status Messages

    Valve dead band 11.1 Resetting single status mes- Defining parameters sages 1. Switch to manual mode (Code 0 = MAN). 2. Select test parameters. The diagnostic parameters and measured 3. Start test. data of the last test are reset by selecting and The 'Test information' status indicates executing the command "Reset 'Valve dead 'Test active'.
  • Page 72 Valve dead band Partial stroke test (PST) Step response settings: Lower range value, Stop, Tolerance limit, Settling time before starting test, Waiting time after step change, Sampling time, Number of step responses Activate ramp function â â â x [%] x [%] x [%] â...

  • Page 73: Partial Stroke Test (Pst)

    Partial stroke test (PST) 12 Partial stroke test (PST) The partial stroke test can be performed once (test immediately started) or, with an The partial stroke test (PST) is particularly on/off valve in automatic mode, regularly suitable for the status-oriented detection of (time-controlled), provided the start condi- malfunctions in pneumatic shut-off valves.
  • Page 74 Partial stroke test (PST) During the partial stroke test, the valve valve position. The valve remains in this po- moves from its current operating point to a sition for the time defined by the 'Waiting defined 'Stop' value and back to the initial time after step change' before performing a position again.
  • Page 75 Partial stroke test (PST) Cancelation conditions, time-out only becomes effective after it has been activated ('Activate Δp out monitoring' = − 'Max. test duration': The test is canceled Yes). when the maximum permissible test du- ration is reached. The positioner determines the '∆p out reference value' from both signal pres- −...
  • Page 76 Partial stroke test (PST) − Cancel internal solenoid valve/forced After the partial stroke test is canceled, the venting: The test was canceled by the ac- 'PST status' reading indicates 'Not success- tivation of the solenoid valve/forced ful'. The reason for cancelation is marked by the 'Failure' message in the Measured data venting function.
  • Page 77 Partial stroke test (PST) Only when the ramp function is activated: − Cancel internal solenoid valve/forced venting: [ − Ramp time (decreasing) (Code 49 - d5): 0 to 9999 s, [600 s] − Canceled by control loop error: − Ramp time (increasing) (Code 49 - d6): 0 to 9999 s, [60 s] −...

  • Page 78: Start Triggered By The Set Point

    Partial stroke test (PST) 12.1 Start triggered by the set Note:  point Cancel the test by right-clicking 'Can- cel test' and selecting 'Execute' or by The partial stroke test of on/off valves is trig- pressing the rotary pushbutton at the gered when the set point w moves in the positioner.

  • Page 79: Analysis And Monitoring

    Partial stroke test (PST) partial stroke test is within the range of the Test completed successfully 'Safety set point' ± 'Tolerance limit'. When a partial stroke test has been complet- ed successfully, the analyzed parameters are Defining parameters displayed separately for the increasing and 1.

  • Page 80: Resetting Single Status Messages

    Partial stroke test (PST) tioner generates a 'PST/FST' message with the selected status classification. Diagnostics > Monitoring − PST/FST status (Code 84): Note:  The ‘No test available’ status remains active until a partial stroke is complet- ed successfully. 12.4 Resetting single status mes- sages The diagnostic parameters and measured data analysis of the partial stroke test are re-...
  • Page 81 Partial stroke test (PST) Table 4: Start options for the partial stroke test (PST) PST start Rotary pushbut- ton or operating Test interval software (time-controlled) Set point w Binary input See page 73 See page 73  See section 12.1 See section 12.2 Operating mode Manual Automatic...
  • Page 82 Partial stroke test (PST) Full stroke test (FST) Prerequisite – Operating mode: Manual â Tolerance limit, Settling time before starting test, Waiting time after step change, Sampling time Activate ramp function â â â x [%] x [%] â Ramp time (increasing) t [s] t [s] Ramp time (decreasing)

  • Page 83: Full Stroke Test (Fst)

    Full stroke test (FST) 13 Full stroke test (FST) The change in travel can be performed either in steps or in a ramp function (Fig. 20). For The dynamic valve performance can be eval- the test in a ramp function, additionally the uated by performing this test.
  • Page 84 Full stroke test (FST) The 'Tolerance limit' parameter defines the − 'Max. test duration': The test is canceled permitted valve positions for the start value when the maximum permissible test du- and the end value for the step. ration is reached. The 'Sampling time' defines the time interval −...
  • Page 85 Full stroke test (FST) − 'Perm. time until CLOSED position': The Defining parameters test is canceled when the valve does not 1. Switch to manual mode (Code 0 reach the CLOSED position before the = MAN). adjusted time has elapsed. This cancel- 2.
  • Page 86 Full stroke test (FST) − The 'Ramp time (decreasing)' must be − Activate 'Perm. time until CLOSED position greater than the corresponding value for exceeded': Yes, [No] 'Min. transit time OPEN' (Code 40) de- − Perm. time until CLOSED position exceeded: termined during initialization.

  • Page 87: Analysis And Monitoring

    Full stroke test (FST) 13.1 Analysis and monitoring Test not completed If the test was not completed, the reason for The analysis of the last three full stroke tests cancelation is indicated in the corresponding are saved with a time stamp in the FST mea- reading by the 'Failure' message.

  • Page 88: Sil Operator Test

    SIL operator test 14 SIL operator test Monitoring the voltage supply (version with forced venting and solenoid The SIL operator ensures that the safety func- valve) tion of the positioner is working. The safety The i/p converter and the solenoid valve function is based on the shutdown of the i/p (when installed) are shut down whenever the converter (6, Fig.
  • Page 89 SIL operator test SIL operator test Serial Interface & >12 V 24 V DC 1 Control valve 14 Software limit switches A1/A2 2 Travel sensor 15 Störmeldeausgang A3 3 PD controller 16 LCD 4 A/D converter 17* Actuation of solenoid valve 5 Microcontroller 18* Electrical insulation 6 i/p converter...

  • Page 90: Analysis And Monitoring

    The posi- The SIL operator test causes the valve tioner needs to be returned immediately to to automatically move. It must only be SAMSON. started when the plant allows it. Diagnostics > Service/maintenance > SIL operator test Defining parameters −...

  • Page 91: Binary Input

    Binary input 15 Binary input − Start data logger Activation of the binary input causes the TROVIS SAFE 3730-6xxxxx3x00x0x00 data logger to start. See Section 3. The positioner has an optional binary input − Reset diagnostics to activate various functions: Active monitoring and dynamic tests are stopped and the diagnostic data is reset −...
  • Page 92 Binary input Device settings > Positioner > Options > Configuration, binary input − Binary input configuration: [For floating contact (switch function)], For non-floating contact (0-24 V) − Select function: [Transmit switching state], Activate local write protection, Start PST, Move valve to safety set point, Switch AUTO/MAN, Start data logger, Reset diagnostics −...

  • Page 93: Dynamic Hart ® Variables

    Dynamic HART® variables 16 Dynamic HART variables ® − Tertiary variable assignment: Set point, Direction of action set point, Set point after The HART specification defines four dynam- ® transit time specification, Valve position, [Set point deviation e], Absolute total valve travel, ic variables consisting of a value and an en- Binary input status, Internal solenoid valve/ gineering unit.
  • Page 94 Dynamic HART® variables Table 5: Dynamic HART variables assignment ® Variable Meaning Unit Set point Set point Direction of action set point Direction of action set point Set point after transit time Set point after transit time specification specification Valve position Valve position Set point deviation e Set point deviation e...

  • Page 95: Appendix

    Appendix Appendix 17 Appendix 17.1 Code list Code Parameter – Readings/ Description values [default setting] Note: Codes with marked with an asterisk (*) must be enabled with Code 3 prior to configuration. 48* Diagnostic parameters Temperature Current operating temperature [°C] inside the positioner (accuracy ±3 %) Read only Min.
  • Page 96 Appendix Appendix Code Parameter – Readings/ Description values [default setting] Note: Codes with marked with an asterisk (*) must be enabled with Code 3 prior to configuration. 48* d7 Supply pressure p Current supply pressure [bar] Read only Signal pressure p Current signal pressure [bar] Read only Flow rate...
  • Page 97 Appendix Code Parameter – Readings/ Description values [default setting] Note: Codes with marked with an asterisk (*) must be enabled with Code 3 prior to configuration. 48* h3* Desired time until 'Re- Time interval for scheduled resetting of measured diagnostic data set measured diagnos- tic data' [0] to 365 days, ESC...
  • Page 98 Appendix Appendix Code Parameter – Readings/ Description values [default setting] Note: Codes with marked with an asterisk (*) must be enabled with Code 3 prior to configuration. 49* A6 Unassigned Δp_out reference val- The valve moves to the lower range value (Code 49 - d2) and up- per range value (Code 49 - d3) with a certain signal pressure.
  • Page 99 Appendix Appendix Code Parameter – Readings/ Description values [default setting] Note: Codes with marked with an asterisk (*) must be enabled with Code 3 prior to configuration. 49* d6* Ramp time (increas- The time required by the valve to move through the range from ing) OPEN to CLOSED position.
  • Page 100 Appendix Appendix Code Parameter – Readings/ Description values [default setting] Note: Codes with marked with an asterisk (*) must be enabled with Code 3 prior to configuration. 49* E7* Max. test duration Test canceled when max. test duration is reached. 30 to 25000 s, [90 s], Unassigned E9* Reset 'PST parame- Resets partial stroke test parameters.
  • Page 101 Appendix Appendix Code Parameter – Readings/ Description values [default setting] Note: Codes with marked with an asterisk (*) must be enabled with Code 3 prior to configuration. Canceled by control The test was canceled. loop error A control loop error has occurred. 49* h Type of application ·...

  • Page 102: Error Messages And Recommended Corrective Action

    • • level lower than 3 was detected dur- positioner output. ing initialization. x signal (Code 62) − Actuator's measured value re- − Return positioner to SAMSON – – cording failed. for repair. − Conductive plastic element de- fective. w too small (Code 63) −...
  • Page 103 Messages generated in EXPERTplus – – – (Code 79) SIL test (Code 86) SIL operator test failed Return positioner to SAMSON for – – repair. Set point outside range Set point smaller than 4 mA or If possible, limit current source at –...
  • Page 104 • (Code 56) range (NOM) or substitute (SUB) ini- range. tialization. − Re-initialize positioner. ATO/ATC switch defective. Return positioner to SAMSON for repair. No emergency mode Positioner detected during initializa- For your information only. No fur- • – (Code 76) tion that actuator permits no emer- ther action required.
  • Page 105 Appendix Appendix Status Message Possible reasons Recommended action classification Single reset Defective actuator − The actuator spring pre-loading − Check actuator springs. • • springs is reduced. Sec. 4.5 u  Supply pressure status − The supply pressure is outside − Check supply pressure. •...
  • Page 106 Appendix Appendix Status Message Possible reasons Recommended action classification Single reset Change in manipulated − The working range has shifted − Rethink the working range. • • variable range towards CLOSED or max. OPEN Sec. 6.2 u  position. − Short-term change of manipulated variable range occurred.

  • Page 107: Diagnostic Data Points Saved In A Non-Volatile Memory

    Appendix Appendix 17.3 Diagnostic data points saved in a non-volatile memory Data saved in a non-volatile memory Saved directly after they change Saved cyclically every 24 h Monitoring − Status classification − Alarm settings − Logging Data logger Diagnostic parameters Valve signature −...

  • Page 108: Resetting Parameters

    Appendix Appendix 17.4 Resetting parameters Reset Code 36 Parameters Diag Start-up Type of application (Code 49 - h0) Reading direction (Code 2) Initialization mode (Code 6) Initialization including valve signature (Code 48 - h0) Pin position (Code 4) Enter nominal range Pressure limit (Code 16) Actuator motion Principle of operation (Code 48 - d11)
  • Page 109 Appendix Appendix Reset Code 36 Parameters Diag Start-up > Reference graphs > Valve signature Sensitivity Start-up > Reference graphs > Leakage sensor > Manufacturer reference Settling time before sound level measurement Sensitivity sound level Set points Start-up > Reference graphs > Leakage sensor > Process reference Settling time before sound level measurement Sensitivity sound level Response time...
  • Page 110 Appendix Appendix Reset Code 36 Parameters Diag Upper travel/angle range value (Code 9) Activate lower travel/angle limit (Code 10) Lower travel/angle limit (Code 10) Activate upper limit for travel/angle (Code 11) Upper limit for travel/angle (Code 11) Select characteristic (Code 20) User-defined characteristic Device settings >...
  • Page 111 Appendix Appendix Reset Code 36 Parameters Diag Valve design Type designation Valve serial no. Configuration ID (Var.-ID) Valve standard Nominal size DN Flow direction Stem seal Packing type Friction coefficient of packing Pressure balancing Facing (leakage class) Friction coefficient of facing Bellows seal Valve seat diameter Kvs unit...
  • Page 112 Appendix Reset Code 36 Parameters Diag Effective actuator area Lower signal pressure range value Upper signal pressure range value Actuator fail-safe action Min. process pressure Max. process pressure Supply pressure Supply medium Device settings > Further accessories Filter regulator Reversing amplifier Booster Quick exhaust valve 3/2-way valve...
  • Page 113 Appendix Reset Code 36 Parameters Diag Device settings > Process data > Min. operating point Input pressure p1 Flow rate Output pressure p2 Inlet temperature Inlet density Vapor pressure Critical pressure Isentropic exponent Compressibility factor Viscosity Flow coefficient Outlet velocity Relative travel/angle Differential pressure ratio Sound pressure level...
  • Page 114 Appendix Reset Code 36 Parameters Diag Outlet velocity Relative travel/angle Differential pressure ratio Sound pressure level Device settings > Process data > Max. operating point Input pressure p1 Flow rate Output pressure p2 Inlet temperature Inlet density Vapor pressure Critical pressure Isentropic exponent Compressibility factor Viscosity...
  • Page 115 Appendix Reset Code 36 Parameters Diag Total valve travel limit (Code 24) Stem seal Alarm mode (Code 25) Activate limit A1 and A2 Limit A1 and A2 (Code 26 and 27) Error message in case of … (Code 32 and 33) Permit 'More status available' bit Condensed state …...
  • Page 116 Appendix Reset Code 36 Parameters Diag Device settings > Alarm settings > Status classification > Supply pressure All classifications Device settings > Alarm settings > Status classification > Logging Supply pressure Change in friction Seat leakage Packing leakage Pneumatic leakage Defective actuator springs Manipulated variable range limitation Course of end position...
  • Page 117 Appendix Reset Code 36 Parameters Diag Trigger condition Trigger lead time Diagnostics > Monitoring/tests > Valve signature > Course of supply pressure Recording threshold Diagnostics > Monitoring/tests > Histograms > Valve position x histogram > Short-term monitoring Sampling time Diagnostics > Monitoring/tests > Histograms > Set point deviation e histogram > Short-term monitoring Sampling time Diagnostics >...
  • Page 118 Appendix Reset Code 36 Parameters Diag Sampling time (Code 49 - d9) Max. test duration (Code 49 - E7) Activate 'Max. breakaway time' Max. breakaway time Activate 'Perm. time until step end' Perm. time until step end Activate x-monitoring (Code 49 - E0) x monitoring value (Code 49 - E1) Activate Δp out monitoring (Code 49 - A8) Δp out monitoring value (Code 49 - A9)
  • Page 119 Appendix Abbreviations used Set point deviation Signal pressure ps Supply pressure Valve position Valve position when the valve is tightly shut Set point, reference variable EB 8389-1S EN...
  • Page 120 SAMSON AG · MESS- UND REGELTECHNIK Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 EB 8389-1S EN samson@samson.de · www.samson.de...

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Trovis safe 3730-63730 series3730-6

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