Samson 3730-3 Operating Instructions Manual
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Samson 3730-3 Operating Instructions Manual

3730 series, 3731 series
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See also: Configuration Manual , Quick Manual
Series 3730 and 3731
Types 3730-2, 3730-3, 3730-4 and
3730-5 as well as Types 3731-3 and
3731-5 Electropneumatic Positioners
EXPERTplus Valve Diagnostics
Operating Instructions
EB 8389 EN
Firmware version
1.5x and 1.6x
Edition August 2017

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Summary of Contents for Samson 3730-3

  • Page 1 Series 3730 and 3731 Types 3730-2, 3730-3, 3730-4 and 3730-5 as well as Types 3731-3 and 3731-5 Electropneumatic Positioners EXPERTplus Valve Diagnostics Operating Instructions EB 8389 EN Firmware version 1.5x and 1.6x Edition August 2017...
  • Page 2 Î For the safe and proper use of these instructions, read them carefully and keep them for later reference. Î If you have any questions about these instructions, contact SAMSON‘s After-sales Service Department (aftersalesservice@samson.de). The mounting and operating instructions for the devices are included in the scope of delivery.

  • Page 3: Table Of Contents

    Contents Safety instructions and measures ..............7 Notes on possible property damage ..............9 Operation ....................11 On-site operation ..................11 Operation using TROVIS-VIEW ..............11 Differences between firmware versions ............12 Start-up .......................12 2.4.1 Reference test....................14 Diagnostic functions ..................15 2.5.1 Application type ..................15 2.5.2 Analysis ......................16 Monitoring ....................19 Status messages ...................19 3.1.1...
  • Page 4 Contents Drive signal diagram steady-state ..............49 4.6.1 Analysis and monitoring ................51 4.6.2 Resetting single status messages ..............51 Drive signal diagram hysteresis ..............53 4.7.1 Analysis and monitoring ................55 4.7.2 Resetting single status messages ..............56 Trend of travel end position ................59 4.8.1 Analysis and monitoring ................60 4.8.2 Resetting single status messages ..............61...
  • Page 5 Contents 7.3.1 Resetting single status messages ..............104 Sound level monitoring ................105 7.4.1 Resetting single status messages ..............105 Binary input ....................106 Types 3730-2/-3 and Type 3731-3 .............106 Type 3730-4 .....................107 Types 3730-5 and 3731-5 .................107 Appendix ....................109 Code list ....................109 9.1.1 PROFIBUS parameter (Type 3730-4) ............115 OUNDATION ™...
  • Page 6 EB 8389 EN...

  • Page 7: Safety Instructions And Measures

    No personal protective equipment is required. Revisions and other modifications Revisions or other modifications to the product are not authorized by SAMSON. They are performed at the user's own risk and may lead to safety hazards, for example. Furthermore, the product may no longer meet the requirements for its intended use.
  • Page 8 The following documents apply in addition to these operating instructions: − Mounting and operating instructions (EB), safety manual (SH) and configuration manual (KH) for mounted device: Type 3730-2: u EB 8384-2, u SH 8384-2 Type 3730-3: u EB 8384-3, u SH 8384-3, u KH 8384-3 Type 3730-4: u EB 8384-4, u SH 8384-4, u KH 8384-4 Type 3730-5: u EB 8384-5, u SH 8384-5, u KH 8384-5 Type 3731-3: u EB 8387-3, u SH 8387-3, u KH 8384-3 Type 3731-5: u EB 8387-5, u SH 8387-5, u KH 8387-5...

  • Page 9: Notes On Possible Property Damage

    Safety instructions and measures 1.1 Notes on possible property damage NOTICE Valve malfunction due to a configuration that does not meet the requirements of the application. Settings for the EXPERTplus valve diagnostics can be made in the TROVIS-VIEW software. In online mode of this software, the configuration and parameter settings take effect immediately in the connected positioner and affect the control valve as a result.
  • Page 10 Overview of functions On/off service Throttling service No configuration Configuration re- No configuration Configuration required for quired for diagnosis required for required for monitoring monitoring diagnosis Data logger Valve position x Valve position x On/off Section 4.2 histogram histogram diagnosis Section 4.3 Section 4.3 Section 4.1 Stuffing box...

  • Page 11: Operation

    TROVIS-VIEW software or DD/DTM/eDD. − The default settings of parameters are written in square brackets [ ]. − TROVIS-VIEW · SAMSON user interface used to configure various SAMSON de- − Status classifications written in brackets () vices are not available in all positioners.

  • Page 12: Differences Between Firmware Versions

    The positioner can be initialized using one of Positioner Firmware 1.5x Firmware 1.6x the following initialization modes: maximum Type 3730-2 • • range (MAX), nominal range (NOM) and Type 3730-3 • • manual adjustment (MAN). Type 3730-4 • − Maximum range (MAX) Initialization mode for simple start-up of Type 3730-5...
  • Page 13 Description – Start-up Initialization mode â â â â Initialization with reference test ß à Subsequent initialization â Operating mode = â â Zero point Reference of drive signal diagram steady- Reference of drive signal diagram steady- state (d1) state (d1) Reference of drive signal diagram Reference of drive signal diagram hysteresis (d2)

  • Page 14: Reference Test

    Operation the derivative-action time until the desired diagram hysteresis' (test d2). See section 5.2 behavior is reached. When the maximum and section 5.1. value of 4 is reached for the derivative-ac- tion time, the proportional-action coefficient NOTICE can be reduced in steps. −...

  • Page 15: Diagnostic Functions

    Operation for 'Drive signal diagram steady-state' or reasons of safety, these tests, except for par- 'Drive signal diagram hysteresis'. tial stroke testing, can only be performed in the manual mode. Diagnostics An active test is stopped and the posi- − Start reference test (Code 48 - d7) tioner changes to the fail-safe position when the electrical signal falls below a Start-up...

  • Page 16: Analysis

    Operation nating sequence on the display. See sec- tion 4.1. 2.5.2 Analysis Table 1 shows the diagnostic functions and their statements on the condition of the valve depending on the application type. EB 8389 EN...
  • Page 17 Operation Table 1: Diagnostic functions and test analysis Open/ Close Diagnostic Control (on/off) functions valve valve Analysis See section Statistical information Breakaway time 4.1, Open/Close – • Transit time page 27 Valve end position 4.2, Data logger • • Depending on trigger status selected 3), 5) page 31 Shifting working range...
  • Page 18 Operation Open/ Close Diagnostic Control (on/off) functions valve valve Analysis See section Tests Air supply Drive signal diagram, steady- • • Leakage pneumatics 5.1, page 63 state Actuator springs Drive signal • • Friction 5.2, page 67 diagram hysteresis Static • • Dead band 5.3, page 70 characteristic...

  • Page 19: Monitoring

    Monitoring 3 Monitoring − Positioner > Start-up > Initialization: List of initialization errors, which are also contained in the Diagnosis folder (> Sta- 3.1 Status messages tus messages) The valve diagnostics integrated into the po- Extended status messages sitioner generates classified status messages. The extended status messages are generated There are two types of status messages: from the results gained from Statistical infor-...

  • Page 20: Resetting Status Messages

    Monitoring 3.1.1 Resetting status mes- The following classifications are possible: sages − No message If an event is classified as “No message”, When a status message is generated, you this event does not have any affect on the should first locate the source of the fault and condensed state.

  • Page 21: Condensed State

    Monitoring − The reference value of 'Trend of travel NOTICE end position' (Statistical Information) is Before mounting the positioner on a new deleted. control valve, perform a reset by activating − The reference values of Tests ('Drive sig- Code 36 - Std and re-initialize the position- nal diagram steady-state' and 'Drive sig- nal diagram hysteresis') remain saved.

  • Page 22: Condensed State At The Fault Alarm Output

    'Logging of int. solenoid valve' is activated. 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 − In the event the solenoid valve is triggered • • •...
  • Page 23 Monitoring Table 2: Reset functions All adjusted parameters and recorded measured values of the specified diagnostic test are reset, if not listed separately. Resetting Code Code single status 36 - Diag 36 - Std Function messages Operating hours counter Device switched on since (last) initialization Device in operation since initialization Status classification Logging...
  • Page 24 Monitoring Resetting Code Code single status 36 - Diag 36 - Std Function messages Drive signal Reference values diagram hysteresis Measured values (d2) Static characteristic (d3) Partial stroke test (PST) (d4) Full stroke test (FST) (d6) Leakage sensor Reference test 1), 3) Repetition test 1), 3)

  • Page 25: Statistical Information

    Statistical information 4 Statistical information The positioner records the set point w, valve position x, drive signal y and set point devi- ation e even while the process is running to obtain information on the valve, actuator and pneumatic air supply. The data com- piled while the process is running are saved and analyzed by the monitoring functions in Statistical information.
  • Page 26 Statistical information – On/off diagnosis Prerequisite: – Application type: open/close (on/off) â Operating point, Limit fail-safe position, Limit operating point â Limit value travel analysis Limit value time analysis Define parameters for partial stroke test (see section 5.4) Status classification (NE 107) Open/Close status active â...

  • Page 27: Open/Close (On/Off) Valve

    Statistical information 4.1 Open/close (on/off) valve fail-safe position (0 % in the example) if the set point then falls below 'Limit fail-safe posi- 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 tion'. • • • • • x [%] w [%] The travel range of open/close (on/off) is...

  • Page 28: On/Off Diagnosis

    'Tolerance limit of step response' for the 4.1.1 On/off diagnosis partial stroke test to start. After the partial stroke test is completed, the 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 valve moves back to its last position (fail-safe • • •...

  • Page 29: Analysis And Monitoring

    Statistical information 4.1.2 Analysis and monitoring amount entered in 'Limit value travel analysis'. x [%] − The current 'Valve end position (falling)' w [%] differs from the reference value by the Valve end position (rising) amount entered in 'Limit value travel analysis'.
  • Page 30 Statistical information – Data logger Selection â â â Permanent Triggered â â Scan rate Trigger status Start trigger via â Start (operator software) â â â â â â â Sol. w or Con- valve/ solenoid densed w, x, e, y forced FB DO valve/forced...

  • Page 31: Data Logger

    Statistical information 4.2 Data logger 4.2.1 Permanent data logging The data logger records the measured vari- 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 ables (valve position x, set point w, set point • • • • deviation e and drive signal y). The recorded Function available in firmware 1.5x and lower...

  • Page 32: Triggered Data Logging

    Note Right-click 'Stop data logger' and select ‘Ex- ecute’ to stop the data logger ('Test informa- 4.2.2.1 Triggered by condensed tion' = 'Test not active'). state 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 4.2.2 Triggered data logging • • • •...
  • Page 33 4.2.2.2 Triggered by set point, valve position, drive signal Top band limit = or set point deviation Trigger value + ½ trigger band Trigger value 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 Trigger band • • • • The conditions for starting a trigger event Function available in firmware 1.5x and lower...
  • Page 34 ('Trigger value' + 4.2.2.3 Triggered by internal sole- ½ 'Trigger band'). noid valve/forced venting This function is only active when 'Trigger band' ≠ 0. 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 • • • • Note Function available in firmware 1.5x and lower...
  • Page 35 4. − Start data logger band exit, Band exit, Band entry 4.2.2.4 Triggered by set point or 4.2.2.5 Triggered by binary input internal solenoid valve/ 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 forced venting • • • 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 Positioners can be optionally fitted with a bi- •...
  • Page 36 4.2.2.6 Triggered by discrete input 4.2.2.7 Triggered by discrete 1 or 2 output 1 or 2 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 • Function available in firmware 1.5x and lower Function available in firmware 1.5x and lower...

  • Page 37: Travel Histogram X

    Statistical information 4.3 Travel histogram x curred within a valve position class is shown in a bar graph. 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 − The 'Average value x long' indicates the • • • • • • average class assignment of the valve position over the 'Observation period.'...

  • Page 38: Analysis And Monitoring

    Statistical information − The 'Average value x short' contains the − Mostly max. opening: average class assignment for the last ), ( 100 measured values. Type 3730-5 (1.6x) and Type 3731-5: The positioner saves the valve positions in a Settings > Positioner > Diagnosis circular buffer, which holds 100 measured configuration >...

  • Page 39: Resetting Single Status Messages

    Statistical information 4.3.2 Resetting single status messages The 'Working range' and the 'Shifting work- ing range' messages can be reset by select- ing and executing the command "Reset 'Travel histogram x'". This command resets all diagnostic parameters and measured da- ta of the histogram and the short-term moni- toring.

  • Page 40: Set Point Deviation Histogram

    − The 'Average value e long' indicates the average class assignment of the set point gram deviation over the 'Observation period.' 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 − The 'Number of measurement values' shows the total number of values were •...

  • Page 41: Analysis And Monitoring

    Statistical information Short-term monitoring Connection positioner - valve In order to be able to recognize any short- − No optimum travel transmission (TEST): ), ( term changes in set point deviation, the posi- tioner records the set point deviation accord- −...

  • Page 42: Resetting Single Status Messages

    Statistical information leakage' messages with the selected status measured data in the 'Short-term' folder are classifications. reset. If almost all set point deviations during the Operation > Reset short-term monitoring are greater than 1 % − Reset 'Set point deviation histogram e' or smaller than –1 %, this may indicated that −...
  • Page 44 Statistical information – Cycle counter histogram Stem seal â â â â â Self-adjusting Adjustable Other, -/- Bellows seal â Max. cycle counter limit â â â â â Status classification (NE 107) Status classification (NE 107) External leakage perhaps soon External leakage perhaps soon expected expected â...

  • Page 45: Cycle Counter Histogram

    Statistical information 4.5 Cycle counter histogram 'Bellows seal'. The cycle height is the travel performed between two changes in direc- 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 tion. • • • • • • The cycle spans or cycle heights are as- signed to classes.

  • Page 46: Analysis And Monitoring

    Statistical information 4.5.1 Analysis and monitoring The positioner saves the cycles in a circular buffer, which holds 100 measured values at Analysis of the histogram starts directly af- one time. ter the change to manual or automatic − The 'Average value e short' contains the mode.

  • Page 47: Resetting Single Status Messages

    Statistical information 4.5.2 Resetting single status messages The 'External leakage' message can be reset by selecting and executing the command "Reset 'Cycle counter histogram'". By selecting and executing the "Reset 'Cycle counter histogram'" command, all diagnostic parameters and measured data of the histo- gram and the short-term monitoring as well as the 'Dynamic stress factor' are reset.
  • Page 48 Statistical information – Drive signal diagram steady-state Requirements: – Model: Single acting – Booster: Not present – Application type: Control valve Reference test completed (see section 2.4.1) â Status classification (NE 107) Leakage Air supply Actuator springs pneumatics Perhaps modified/ Working at full Perhaps too large/ capacity not enough...

  • Page 49: Drive Signal Diagram Steady-State

    Data are recorded in the background re- gardless of the operating mode selected. Da- steady-state ta logging does not need to be activated. 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 The positioner records the valve position x and its associated drive signal y in closed- •...
  • Page 50 Statistical information − No measured values are recorded if Defining parameters 'Enable set point cutoff decrease' (tight- 1. Select classification for status messages. closing function, Code 14) is active and Types 3730-2/-3/-4/-5 (1.5x) and Type 3731-3: the valve moves to the value entered in 'Set Settings >...

  • Page 51: Analysis And Monitoring

    Statistical information 4.6.1 Analysis and monitoring Diagnosis > Status messages > Extended − Air supply Analysis of the drive signal for control − Leakage pneumatics valves starts one hour after the observation period begins. No analysis is performed for − Actuator springs on/off valves.
  • Page 52 Statistical information – Drive signal diagram hysteresis Requirements – Model: Single acting – Booster: Not present – Application type: Control valve – Reference test completed (see section 2.4.1) â Enable time distance â â Immediately User-defined â Min. time distance from test â...

  • Page 53: Drive Signal Diagram Hysteresis

    Data are recorded after the hysteresis test is activated. A single test can be performed im- teresis mediately or regular tests can be performed after the adjusted time interval has elapsed. 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 The following listed parameters are activated • • •...
  • Page 54 Statistical information Requirements − Required transit time OPEN (Code 21): Variable 1. A single-acting actuator is mounted on − Required transit time CLOSED (Code 22): the valve. Variable 2. No booster is mounted on the control Based on the operating point, the test is per- valve.

  • Page 55: Analysis And Monitoring

    Statistical information 4.7.1 Analysis and monitoring Settings > Positioner > Error control > Classification report > Extended > ... The test is monitored by the 'Tolerance band Friction of hysteresis' parameter: − Much higher over whole range − If the valve position x leaves the 'Toler- ), ( ance band of hysteresis' during the test, −...

  • Page 56: Resetting Single Status Messages

    Statistical information Note The results from the Statistical information test can be checked by performing a test from Tests (out-of-service diagnostics) if the process allows it. See section 5.2. 4.7.2 Resetting single status messages The messages 'Friction' and 'External leak- age' are reset by the command "Reset 'Drive signal diagram hysteresis'"...
  • Page 58 Statistical information – Trend of travel end position Prerequisite - Enable set point cutoff decrease: On â Threshold value for recording data, zero point limit â Alarm settings (NE 107) Observing end position x [%] t [s] Reference test completed? Section 2.4.1 ß...

  • Page 59: Trend Of Travel End Position

    4.8 Trend of travel end position tion is compared to the last saved zero point. If it differs by the 'Recording threshold' from 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 the last value, the data of the new zero point are saved.

  • Page 60: Analysis And Monitoring

    Statistical information Defining parameters Type 3730-5 (1.6x) and Type 3731-5: 1. Activate tight-closing function. Settings > Positioner > Diagnosis configuration > Classification 2. Set conditions for saving reference value − Observing end position: [ and zero point (see section 4.8.1). 3. Select classification for status messages. Not Type 3730-4 Settings >...

  • Page 61: Resetting Single Status Messages

    Tests 5 Tests Diagnosis > Status messages > Extended − Observing end position For reasons of safety, these tests can only be started when the positioner is in the manual 4.8.2 Resetting single status mode. messages NOTICE The 'Observing end position' message and The control valve moves through its defined the measured data of the end position trend working range while a test is being per-...
  • Page 62 Tests – Drive signal diagram steady-state Requirements – Model: Single acting – Booster: Not present – Target mode: Manual â Status classification (NE 107) Leakage pneu- Air supply Actuator springs matics â Start test NO à Reference test completed? See section 2.4.1 â...

  • Page 63: Drive Signal Diagram Steady-State

    The recorded data of the drive signal y are 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 plotted versus the valve position x in a graph (Repetition). •...
  • Page 64 Tests Settings > Identification > Positioner > Actu- − Perhaps bias reduced (TEST): ator ), ( − Model: Single acting, [-/-] − Working at full capacity (TEST): ), ( 2. − Booster: Not present, [-/-] Type 3730-5 (1.6x) and Type 3731-5: Defining parameters Settings >...

  • Page 65: Analysis And Monitoring

    Tests 5.1.1 Analysis and monitoring 5.1.2 Resetting single status messages The following effects can be read by com- paring the correlation between the drive sig- The diagnostic parameters and measured nal and valve position measured during the data analysis from the 'Drive signal dia- test and in the reference graph: phragm steady-state' test are reset by select- −...
  • Page 66 Tests – Drive signal diagram hysteresis Requirements – Model: Single acting – Booster: Not present – Target mode: Manual â Cancellation condition Tolerance band of hysteresis Status classification (NE 107) Friction â Start test â NO à Reference test completed (see section 2.4.1)? â...

  • Page 67: Drive Signal Diagram Hysteresis

    The re- corded data of the change in drive signal 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 (∆y) are plotted versus the valve position x in • •...

  • Page 68: Analysis And Monitoring

    Tests Settings > Identification > Positioner > Diagnosis > Tests > Drive signal diagram Actuator hysteresis − Model: Single acting, [-/-] − Start test 2. − Booster: Not present, [-/-] Types 3730-4/-5 and Type 3731-5: Operation > Operating mode > Positioner Defining parameters (AO, TRD) 1.

  • Page 69: Resetting Single Status Messages

    Tests waiting 30 seconds using the new oper- ating point. − If this test is also canceled by a change in set point (∆w), it is reactivated after waiting 60 seconds using the new oper- ating point. − The test is started again ten times at the maximum.

  • Page 70: Static Characteristic

    Tests 5.3 Static characteristic the valve position x to the change in set point (∆w) is plotted in a graph. 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 The dead band is analyzed in the positioner • • • • • •...

  • Page 71: Resetting Single Status Messages

    Tests 5.3.1 Resetting single status 2. Select test parameters. messages 3. Start test. The 'Test information' status indicates A single reset of diagnostic parameters and 'Test active'. 'd3' and 'tEST' are indicated measured data is not possible. in alternating sequence on the positioner display.
  • Page 72 Tests – Partial stroke test (PST) Step response settings: Step start, Step end, Tolerance limit of step response, Settling time before test start, Delay time after step, Scan rate, Number of step responses Activation of ramp function â â â x [%] x [%] x [%]...
  • Page 73 Tests – Partial stroke test (PST) Start conditions PST with application type = 'Open/Close valve' Operating mode â â â SAFE AUTO w < 'Limit 25 % w > 'Limit fail-safe < w > fail-safe position' 50 % position' â PST mode PST mode â...
  • Page 74 Tests – Partial stroke test (PST) Start conditions PST with application type = 'Control valve' Operating mode â â â â SAFE AUTO â PST mode â â PST Man PST Auto â â â â 1, 3) 1, 2, 3) PST not possible PST not possible possible...

  • Page 75: Partial Stroke Test (Pst)

    Tests 5.4 Partial stroke test (PST) The recording of the test results additionally allows an analysis of the dynamic control re- The partial stroke test (PST) is particularly sponse. suitable for the status-oriented detection of The partial stroke test can be performed malfunctions in pneumatic shut-off valves.
  • Page 76 Tests − Characteristic selection (Code 20): Linear erating point ± 'Tolerance limit of step re- − Required transit time OPEN (Code 21): sponse' for the partial stroke test to start. Variable After being activated, the test does not start − Required transit time CLOSED (Code 22): until the 'Settling time before test start' has Variable elapsed.
  • Page 77 Tests Test cancellation conditions − 'delta y-monitoring value': The test is canceled as soon as the drive signal y Various cancellation conditions provide ad- falls below or exceeds the reference val- ditional protection against the valve slam- ue. The reference value is made up of the ming shut or moving past the end position.
  • Page 78 Tests − 'Supply pressure/friction': An insufficient 3. Select classification for status message. supply pressure or excessive friction oc- 4. Start the partial stroke test. curred during the test. The 'Test information' status indicates − 'Difference w - step start too high': The 'Test active'.
  • Page 79 Tests − x control value (Code 49 - E1): Or: (with a control valve only in manual mode –10.0 to 110.0 %, [0.0 %])/[85.0 %] (MAN), with an on/off valve only in automat- ic mode (AUTO)) − Activation delta y-monitoring − Target PST testing mode (Code 49 - A2) = (Code 49 - A8): [No]/[Yes] PST Auto, [PST Man] −...

  • Page 80: Start Triggered By On/Off Valve

    − The 'Ramp time (falling)' must be greater binary input than the corresponding value for 'Mini- mum transit time open' (Code 41) deter- mined during initialization. 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 • • • • If the positioner is fitted with the optional bi-...

  • Page 81: Analysis And Monitoring

    Tests Analysis of measured data (ramp test): − Edge control binary input: [On: open switch/Off: closed switch], On: − 'Overshoot' (relative to the step height) closed switch/Off: open switch − Fail-safe reference value: 0.0 to 100.0 %, The results of the first partial stroke test are [50.0 %] used as the reference measurement.

  • Page 82: Resetting Single Status Messages

    Tests 5.4.4 Resetting single status messages The diagnostic parameters and measured data analysis of the partial stroke test are re- set by selecting and executing the command 'Reset PST'. The positioner saves the measured data analysis of the last three partial stroke tests. The analysis of the penultimate test is deleted when another test is performed.
  • Page 83 EB 8389 EN...
  • Page 84 Tests – Full stroke test (FST) Prerequisite – Operating mode: Manual â Tolerance limit of step response, Settling time before test start, Delay time after step, Scan rate Activation of ramp function â â â x [%] x [%] â Ramp time (rising) t [s] t [s]...

  • Page 85: Full Stroke Test (Fst)

    Tests 5.5 Full stroke test (FST) During the full stroke test, the valve moves through its entire working range. 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 The first step ends in the fail-safe position. As • • • • • •...
  • Page 86 Tests the 'Delay time after step' before performing when one of the following cancellation con- a second step change in the opposite direc- ditions is fulfilled: tion from the fail-safe position to the start − 'Max. test duration': The test is canceled position of the first step.
  • Page 87 Tests This cancellation condition only becomes 3. Configure the cancellation conditions. effective after it has been activated ("Ac- 4. Select classification for status message. tivation 'Allowed time to reach full closed 5. Start full stroke test. position'" = Yes). The 'Test information' status indicates Additionally, the full stroke test is canceled 'Test active'.

  • Page 88: Analysis And Monitoring

    Tests − The 'Scan rate' must not be lower than Types 3730-2/-3/-4/-5 (1.5x) and Type 3731-3: the indicated 'Min. recommended scan Settings > Positioner > Error control > rate'. The 'Min. recommended scan rate' Classification report > Extended > PST/FST is calculated from the 'Duration of the −...

  • Page 89: Resetting Single Status Messages

    Tests The positioner saves the measured data Note analysis of the last three full stroke tests. The Changes in the diagnostic parameters listed analysis of the penultimate test is deleted below affect the test. The results of the next when another test is performed. following full stroke test is used as the new Operation >...

  • Page 90: Dynamic Hart ® Variables

    Dynamic HART® variables 6 Dynamic HART variables ® 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 • • The HART specification defines four dynam- ® ic variables consisting of a value and an en- gineering unit. These variables can be as- signed to device parameters as required. The...
  • Page 91 Dynamic HART® variables Table 4: Dynamic HART variables assignment ® Variable Meaning Unit Reference variable Reference variable Valve set point Valve set point Target position Target position Valve position Process variable Set point deviation e Set point deviation e Absolute total valve travel Absolute total valve travel –...
  • Page 92 Leakage sensor Prerequisites – Positioner accessories identification: Leakage sensor – Enable set point cutoff decrease: On â Repetition test Reference test User-defined with process conditions á â Settling time before level measuring Activation level lower than â á à Measured points of activation level Stop â...

  • Page 93: Leakage Sensor

    Leakage sensor 7 Leakage sensor and operating instructions of the posi- tioner. 3730-2 3730-3 3731-3 3730-4 3730-5 3731-5 2. The leakage detection option has been • • • selected. 3. The tight-closing function has been acti- By upgrading the positioner with a leakage vated.

  • Page 94: Start-Up Of The Leakage Sensor

    On request, it can also be performed by Phase 1 successful: The sound pressure level ex- SAMSON and must not be performed ceeded the adjusted 'Activation level' (10 dB) be- again. In this case, the standard conditions tween set points 4 and 5.
  • Page 95 Leakage sensor Phase 2: A 0.30 % band is placed around the last point that the valve moved to. One third of this band lies in front of the point that the valve moved to and two thirds of the band lies behind it. The band itself is subdi- vided into eleven new measured points.
  • Page 96 Leakage sensor points must be rounded up to two deci- Diagnosis > Leakage detection > Reference mal places. test − Settling time before level measuring: − User-defined points can be saved for 1 to 255 s, [5 s] other functions (e.g. repetition test) in a file.

  • Page 97: Repetition Test

    Leakage sensor If it is not possible to perform the repetition Operation > Reset test, the user-defined alarm limits can be en- − Reset 'Leakage detection – Reference test' tered (see section 7.1.2.2). While the repetition test is running, the pa- 7.1.2 Repetition test rameters listed below are automatically de-...
  • Page 98 Leakage sensor the new points one after the other. After reaching a measured point and after the 'Settling time before level measuring' has elapsed, the leakage sensor measures the sound pressure level. Phase 1 successful: The sound pressure level ex- ceeded the adjusted 'Activation level' (10 dB) be- tween set points 4 and 5.
  • Page 99 Leakage sensor Phase 3: The valve moves to the user-defined Note points valid for phase 1 one after the other. Cancel the repetition test by right-clicking This is plotted in a sound level vs. travel 'Stop test' and selecting 'Execute' or by graph.
  • Page 100 Leakage sensor 7.1.2.1 Analysis 7.1.2.2 Alarm settings While the repetition test is running, the posi- After connecting the leakage sensor and tioner determines three alarm limits from performing the reference and repetition tests, which alarm limits 2 and 3 can be used for the positioner is able to pinpoint any seat the alarm setting.
  • Page 101 Leakage sensor compared to the alarm limits. Which mean Defining parameters sound level is to be used for comparison can 1. Define alarm parameters. be selected in 'Alarm release': 2. Select classification for status messages − Average of current/last tight-closing: (see section 7.1.2.3).
  • Page 102 Leakage sensor 7.1.2.3 Monitoring If the determined mean sound level exceeds the 'Alarm limit 2', the positioner generates a 'Inner leakage' message with status classi- fication selected for 'Alarm limit 2 exceed- ed'. If the determined mean sound level exceeds the 'Alarm limit 3', the positioner generates a 'Inner leakage' message with status classi- fication selected for 'Alarm limit 3 exceed-...

  • Page 103: Short-Term Monitoring

    Leakage sensor 7.2 Short-term monitoring short-term', it is saved as the new mean val- ue in short-term monitoring. Short-term monitoring provides an insight in- The last 'Level average short-term' is indicat- to short-term changes in the sound level 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 104: Resetting Single Status Messages

    Leakage sensor 7.2.1 Resetting single status 7.3 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 pa- tains all the mean values saved in the short- rameters, measured data and analysis) can term monitoring since the last reset: be reset by selecting and executing the com-...

  • Page 105: Sound Level Monitoring

    Leakage sensor 7.4 Sound level monitoring 7.4.1 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 106: Binary Input

    Binary input 8 Binary input − Start data logger Activation of the binary input causes the data logger to start see section 4.2). 8.1 Types 3730-2/-3 and − Reset diagnosis Type 3731-3 Active functions of statistical information and tests are stopped and the diagnostic The following description only applies to po- data is reset once.

  • Page 107: Type 3730-4

    Binary input 8.2 Type 3730-4 − Condensed state In this setting, the current condensed The optional binary input BI2 can be config- state according to NAMUR Recommen- ured over the PROFIBUS PA network in the dation NE 107 is issued over OUT_D. CONFIG_BINARY_INPUT_2 parameter of The status messages are assigned to the the Physical Block.
  • Page 108 Binary input issued in the BINARY_INPUT2 parameter messages are assigned to the discrete of the AO Transducer Block. value as follows: No message − Internal solenoid valve Maintenance required In this setting, the current switching state Maintenance demanded of the optional internal solenoid valve is Maintenance alarm analyzed and issued over OUT_D.

  • Page 109: Appendix

    Appendix 9 Appendix 9.1 Code list Code Parameter – Readings/ Description values [default setting] Codes with marked with an asterisk (*) must be enabled with Code 3 prior to configuration. 48* d0 Current temperature Current operating temperature [°C] inside the positioner (accuracy ±3 %) –55.0 to 125.0 Read only...
  • Page 110 Appendix Code Parameter – Readings/ Description values [default setting] Codes with marked with an asterisk (*) must be enabled with Code 3 prior to configuration. d8 EXPERTplus activation Firmware version 1.5x and higher without function 48* Diagnostic parameters h h0 Initialization with Initialization with reference test reference test (the reference graphs for drive signal y steady-state (d1) and drive...
  • Page 111 4), 5), 6) Step parameters for the partial stroke test (PST) d1 Unassigned d2 Step start Start value for step response 0.0 to 100.0 %,  [95.0] % 1), 6) [100.0 %] 2), 3), 4), 5) Type 3730-2 Type 3731-3 Type 3730-5 Type 3730-3 Type 3730-4 Type 3731-5 EB 8389 EN...
  • Page 112 Appendix Code Parameter – Readings/ Description values [default setting] Codes with marked with an asterisk (*) must be enabled with Code 3 prior to configuration. 49* d3 Step stop Stop value for step response 0.0 to 100.0 %, [90.0 %] 1), 2), 3) [95 %] 4), 5) d4 Activation of ramp...
  • Page 113 The test was canceled by x cancellation function. F3 y cancellation The test was canceled by y cancellation function. F4 Tolerance band The test was canceled. The x-values are outside the tolerance band. exceeded Type 3730-2 Type 3731-3 Type 3730-5 Type 3730-3 Type 3730-4 Type 3731-5 EB 8389 EN...
  • Page 114 Appendix Code Parameter – Readings/ Description values [default setting] Codes with marked with an asterisk (*) must be enabled with Code 3 prior to configuration. F5 Max. test duration The test was not completed within the max. test time and was auto- exceeded matically canceled.

  • Page 115: Profibus Parameter (Type 3730-4)

    Appendix Code Parameter – Readings/ Description values [default setting] Codes with marked with an asterisk (*) must be enabled with Code 3 prior to configuration. 49* h5 Operating point limit Types 3730-2/-3 and Type 3731-3 only 55.0 to 100.0 % of Valve is moved to the operating point when the operating point limit reference variable, is exceeded.
  • Page 116 Appendix Code Parameter – Readings/ Description values [default setting] Codes with marked with an asterisk (*) must be enabled with Code 3 prior to configuration. F3 Device start up counter F4 Reset communication controller F5 Reset closed-loop controller counter F6 Reset bus connection counter F7 Slave state Not defined...
  • Page 117 Appendix Code Parameter – Readings/ Description values [default setting] Codes with marked with an asterisk (*) must be enabled with Code 3 prior to configuration. t2 Final_Position_Value. Current valve position in relation to the working range and its status Value t3 Final_Position_Value. State t4 AO Feedback Value Current valve position [OUT_SCALE] and its status...

  • Page 118: Oundation ™ Fieldbus Parameters (Type 3730-5, Type 3731-5)

    Appendix Code Parameter – Readings/ Description values [default setting] Codes with marked with an asterisk (*) must be enabled with Code 3 prior to configuration. L1 Actual Mode DI2 Current operating mode L2 DI2 Trd PV_D.Value Discrete input variable and its status L3 DI2 Trd PV_D.State L4 DI2 Fb Target Mode Target operating mode...
  • Page 119 Appendix Code Parameter – Readings/ Description values [default setting] Codes with marked with an asterisk (*) must be enabled with Code 3 prior to configuration. F3 Simulate Activation of simulation mode AO Function Block A0 Target mode Target operating mode A1 Actual mode Current operating mode A2 CAS_IN value Analog set point adopted from an upstream function block and its...
  • Page 120 Appendix Code Parameter – Readings/ Description values [default setting] Codes with marked with an asterisk (*) must be enabled with Code 3 prior to configuration. t4 Target mode DI1 Trd Target operating mode t5 Actual mode DI1 Trd Current operating mode t6 Block error DI1 Trd Current block error t7 Target mode DI2 Trd...

  • Page 121: Error Messages And Recommended Corrective Action

    Appendix 9.2 Error messages and recommended corrective action Status classifica- Message Possible reasons Recommended action tion Single reset Diagnostics > Status messages Control loop (Code 57) − Actuator is blocked. − Check attachment. • – − Positioner attachment has − Check supply pressure. shifted subsequently.
  • Page 122 (Code 77) loaded that does match the restart the positioner. If this is positioner. not possible, return positioner to SAMSON for repair. The valve is moved to fail-safe position. x > range (Code 50) − Pin not mounted properly. − Check attachment and •...
  • Page 123 (Code 56) nominal range (NOM) or nominal range. substitute (SUB) initialization. − Re-initialize positioner. ATO/ATC switch defective. Return positioner to SAMSON for repair. No emergency mode Positioner detected during For your information only. • – (Code  6) initialization that actuator No further action required.
  • Page 124 Single reset HART parameter (Code 74); Error in HART parameters not Confirm error and change • • ® Types 3730-3/3731-3 only critical to control operation. parameter, if necessary. Options parameter Error in option parameters. Return positioner to • – (Code 78) SAMSON for repair.
  • Page 125 Appendix Status classifica- Message Possible reasons Recommended action tion Single reset Working range − The working range is Rethink the working range. • • mainly close to the Section 4.3.2 CLOSED/max. OPEN position. − The working range is mainly in the CLOSED/ max.

  • Page 126: Diagnostic Data Points Saved In A Non-Volatile Memory

    Appendix Status classifica- Message Possible reasons Recommended action tion Single reset Open/Close − The breakaway time or − Check that pneumatic • • transit time differs from the installations and Section 4.1.3 reference value by the connections are tight. amount entered in 'Limit −...
  • Page 127 Appendix Data saved in a non-volatile memory: Saved directly after they change Saved cyclically every 24 h Short-term monitoring Lower end position Measured values Tests Drive signal diagram steady-state (d1) Values of the reference test 'Reference time stamp' Drive signal diagram hysteresis (d2) Values of the reference test Reference time stamp Static characteristic (d3)

  • Page 128: Determining The Ramp Times In Partial Stroke Tests

    Appendix 9.4 Determining the ramp times in partial stroke tests Suitable ramp times for the partial stroke test can be determined by performing a full stroke test. NOTICE To perform a full stroke test, observe section 5.5. Note The recording of the partial stroke test in the data logger is described below. The Type 3730- 5 (1.6x) and Type 3731-5 do not have the data logger function.
  • Page 129 Appendix Fig. 21: Full stroke test to determine the ramp times in the partial stroke test The valve position follows the set point closely in the example. EB 8389 EN...
  • Page 130 EB 8389 EN...
  • Page 131 Abbreviations used Set point deviation ATC Air to close Signal pressure ATO Air to open Supply pressure Binary input Valve position Operating hours counter Valve position when the valve is tightly Full stroke test shut INIT Initialization Set point, reference variable NAMUR Recommendation Zero point Partial stroke test...
  • Page 132 SAMSON AG · MESS- UND REGELTECHNIK Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 EB 8389 EN samson@samson.de · www.samson.de...

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