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- Samson
- Valve Positioners
- 3780 series
- Mounting And Operating Instructions
Samson 3780 series Mounting And Operating Instructions
Summary of 3780 series
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Positioner with hart ® communication type 3780 mounting and operating instructions eb 8380-1 en firmware r 2.22/k 2.23 edition june 2004 fig. 1 ⋅ type 3780
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Contents page 1. Design and principle of operation . . . . . . . . . . . . . . . . . . . . . . 10 1.1 options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 1.2 communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2. Attachment to the control valve...
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9.3 error messages during initialization without abortion . . . . . . . . . . . . 59 9.4 error messages during initialization with abortion . . . . . . . . . . . . . . 60 dimensional diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 type examination certificates . . . . . . . . . . . ...
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Modifications of positioner firmware modifications of positioner firmware in comparison to previous version former new for more details on the listed parameters, please also refer to the list of parameters in section 8. Positioner r 1.41 r 2.01 parameters: operating direction direction of action the...
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Modifications of positioner firmware former new positioner 2.02 r 2.11 parameters: minimum pulse filling/venting the minimum pulses for filling and venting are determined for the travel ranges 0 to 20 %, 20 to 80 % and 80 to 100 %. The minimum pulses are no longer determined during initialization. P...
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Modifications of positioner firmware end position when w > changing the type of initialization from "maximum range" to "nominal range" causes: e nd position at 125 % changing the type of initialization from "nominal range" to "maximum range" causes: e nd position at 99 % extended valve diagnostics s...
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Positioner versions former new communication k 2.13 k 2.21 supports all functions of r 2.21 as well as trovis-expert in version 1.0 or higher communication k 2.21 k 2.22 supports all functions of r 2.21 as well as trovis-viewin version 2.0 or higher new for model index 3780-x...X. 01 or higher: writ...
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Positioner rated travel, adjustable direct attachm. 5 to 30mm attachment acc. To iec 60534-6 (namur), 5 to 255 mm or 30 to 120° c reference variable two-wire connection, signal range 4 to 20 ma, span 4 to 16 ma min. Current = 3.6 ma, load ≤ 10.8 v (corresponding to 540 Ω at 20 ma), static destructio...
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Communication hardware requirements samsons trovis-view operator interface (see data sheet t 6661 en) or handheld communicator, e.G. Type 275 by rosemount integration of other operator interfaces, e.G. Dtm, are available data transmission hart ® field communication protocol impedance in hart ® freq...
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1. Design and principle of operation the positioner essentially consists of an in- ductive, non-contact travel measuring sys- tem and an electrically controlled valve block comprising two 2/2-way on-off valves and an electronic unit. This unit con- tains two microcontrollers for processing the contr...
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1.2 communication for communication, the positioner is equipped with an interface for the hart ® protocol (highway addressable remote transducer). Data transmission is accom- plished by superimposing an fsk signal (fsk = frequency shift keying) over the existing 4 to 20 ma signal lines for the refer...
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The positioner is supplied with a standard configuration applying to a valve with 15 mm rated travel, which is designed for integrated positioner attachment. An individual configuration needed to adapt the positioner to deviating actuators can only be carried out by means of a com- municator or a pc...
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2. Attachment to the control valve the positioner can be attached either di- rectly to a samson type 3277 actuator, or according to namur (iec 60534-6), to control valves with cast yokes or rod-type yokes. In combination with an intermediate piece, the device can also be attached as rotary positione...
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2.1 direct attachment to type 3277 actuator for the selection of the required mounting parts, refer to tables 1, 2 and 3 (page 17). When looking at the signal pressure connec- tion or the switchover plate (fig. 3) from the top, the positioner must be attached to the left side of the actuator. The ar...
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Actuator stem retracts venting "actuator stem retracts" symbol with switch plate (formerly) with seal (new) suppl y 18 17 19 1.2 d2 d1 17 16 15 1.2 16 17 15 actuator stem retracts internal signal pressure connection signal pressure connection via piping 1.2 clamp d 1 lever d2 lever 15 distance plate...
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7. Mount the positioner so that the hole in the distance plate (15) matches the seal located in the hole of the actuator yoke. 8. Align the switchover plate with the corresponding symbol for left attach- ment according to the marking and screw tight onto the actuator yoke. Important! If, with the 12...
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1) order with every pressure gauge kit: 2 restrictions (1790-6121) 1) 1402-0938 1402-0939.
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2.2 attachment according to iec 60534-6 for the selection of the required mounting parts, refer to tables 4 and 5 (page 21). The positioner is attached according to namur using an adapter housing as shown in fig. 4. The valve travel is trans- mitted via the lever (18) and the shaft (25) to the brack...
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2 1,5 1 28 26 a b 24 25 22 32 31 20 19 19 21 20 23 18 27b 27a 29 30 mounting position fig. 4 ⋅ attachment according to iec 60534-6 (namur) 18 lever n1, n2 19 pin 20 plate 21 clamp 22 clamping plate 23 screw 24 pointer 25 shaft 26 lever of positioner 27a coupling pin 27b lock nut 28 bracket 29 studs ...
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Move the clamp (21) to surround the pin. 5. Measure the distance between the cen- ter of the shaft (25) and the center of the pin (19). You will be prompted for this value subsequently during the con- figuration of the positioner. 2.2.2 presetting the valve travel 1. Adjust the shaft (25) in the ada...
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Table 4 attachment acc. To iec 60534-6 control valve travel in mm with lever order no. Namur mounting kit parts illustrated in fig.4 valve with cast yoke 7.5 to 60 n1 (125 mm) 1400-6787 30 to 120 n2 (212 mm) 1400-6789 valve with rod-type yoke with rod diameter in mm 20 to 25 n1 1400-6436 20 to 25 n2...
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2.3 attachment to rotary actuators for the selection of the required mounting parts, refer to table 6 (page 25). The positioner can also be attached to rot- ary actuators in accordance with vdi/vde 3845 by using the mounting parts and ac- cessories listed in table 6. In this arrange- ment, the actua...
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Fig. 5 ⋅ attachment to rotary actuators 33 38 35 39 39 40 34 36 40 34 44 45 42 43 37 attachment to samson type 3278 attachment acc. To vdi/vde 3845 vent plug or filter check valve 33 positioner 34 intermediate piece 35 lever w. Cam follower roll 36 adapter 37 transmission lever 38 screws 39 scale 40...
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2.3.3 aligning and mounting of the cam disk in rotary actuators with spring-return mech- anism, the built-in actuator springs deter- mine the fail-safe position and the direction of rotation of the control valve (either counterclockwise or clockwise). With double acting, springless rotary actua- tor...
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Fig. 6 ⋅ aligning the cam disk table 6 rotary actuators (complete mounting parts, but without cam disks) samson type 3278 actuator attachmt. Acc. To vdi/vde 3845 attachment to masoneilan actuator actuator 160 cm actuator 320 cm2 camflex i dn 25 ...100 camflex i dn 125...250 camflex ii order no. 1400...
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2.3.4 reversing amplifier for double-acting actuators for the use with double-acting actuators, the positioner must be fitted with a reversing amplifier. The reversing amplifier is listed as an acces- sory in the table 6 on page 25. The output signal pressure of the positioner is supplied at the out...
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1.3 1.2 1.1 1 output 38 supply 9 a 1 1.5 1.6 z a 2 1.4 a 1 a 2 output 38 supply 9 1.3 1.2 1.1 1.6 z a 1 fig. 7 ⋅ mounting a reversing amplifier control signals to the actuator 1 reversing amplifier 1.1 special screws 1.2 gasket 1.3 special nuts 1.4 rubber seal 1.5 plug 1.6 filter from the positioner...
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3. Connections 3.1 pneumatic connections the air connections are either 1/4 npt or g 1/4 tapped holes. The customary fittings for metal and copper tubes or plastic hoses can be used. Note! The supply air has to be dry and free from oil and dust. The maintenance instructions for upstream pressure red...
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3.1.2 supply air pressure the required supply air pressure depends on the bench range and the actuators fail- safe action. The bench range is registered on the nameplate either as spring range or signal pressure range. Actuator stem extends: required supply air pressure = upper bench range value + ...
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Note on the selection of cables and wires: to run several intrinsically safe circuits in a multi-core cable, read paragraph 12 of en 60039-14; vde 0165/8.98. For generally used insulating materials, for example polyethylene, the radial thickness of the conductor insulation has to be at least 0.2 mm....
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In general, it is not necessary to connect the positioner to a bonding conductor (0). Should there be the need, however, this con- ductor can be connected either to the inside or outside of the case. For plants in hazard- ous areas, see paragraph 5.3.3 of vde standard 0165. Depending on the supplied...
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3.2.2 establishing communication communication between pc and positioner via fsk modem or communicator, if necess- ary, using an isolating amplifier is based on the hart ® protocol. Viator fsk modem rs-232 eex ia order no. 8812-0129 rs-232 not ex order no. 8812-0130 pc mcia order no. 8812-0131...
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Communication. This operating mode is, for example, suitable for split-range operation (series connection) of positioners. The bus address/polling address has to be within a range of 1 to 15. Connect the fsk modem to the interface of the pc. If several interfaces are available, the selected interfac...
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4. Operation caution! Before taking the positioner into operation, carefully move the con- trol valve to its end position by covering the hole (manual adjust- ment) on the cover plate (fig. 12). Check whether the lever mechanism functions properly. If the wrong lever is used or the lever mechanism d...
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4.3 default setting all parameters are set to default values. See section 8 for a description of parameters. Note! Manual operation and activated final position functions can cause the actuator to be filled with the maximum supply pressure. Should this lead to impermissible forces occurring, the sup...
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Fail-safe position "actuator stem ex- tends" (fa): direction of action: increasing/increas- ing (>>), the globe valve opens with in- creasing reference variable final position at a reference variable less than 1% (tight closing), final position at a reference variable larger than 125 % (function dea...
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The electric calibration has been completed when the positioner takes on the position predetermined by the reference variable. 4.4 adjusting inductive limit switches the positioner version with inductive limit switches has two adjustable tags that are mounted on the shaft of the positioner lever and...
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5. Maintenance the positioner is maintenance-free. The pneumatic connection 9/supply fea- tures a filter with 100 μ m mesh size. If re- quired, the filter can be unscrewed and cleaned. The maintenance instructions for any up- stream air pressure reducing stations for supply air must be observed. 6. ...
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7. Summary of parameters the list of parameters describes - in alphabetical order - all parameters of the type 3780 po- sitioner that can be transferred via hart ® communication and displayed or modified on a pc, a handheld communicator, or a similar device. Device identification msr no./bus identif...
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Minimum control pulses minimum transit time on/off initialization cycle device settings configuration reference variable range final position with reference variable below preset value final position with reference variable above preset value travel range/angle of rotation limitation of travel range...
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State software limit switches gw1/gw2 forced venting function diagnostics device status (control loop monitoring, zero point monitoring, etc.) total valve travel limit value total valve travel error monitoring tolerance band/lag time fault message in case of communication fault fault message with co...
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8. List of parameters actuator id number range: manufacturers identification (id) number of the actuator and the positioner. 0 to 999 999 actuator type ---- states: default (coldstart value): linear actuator/rotary actuator linear actuator angle range end upper limit of the effective working range ...
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Characteristic creation of assignments between the reference variable and valve travel/angle range. When the equal percentage characteristic is selected, this characteristic is copied in the user-defined characteristic, overwriting the previously entered user-defined characteristic. The control loop...
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Caution: since the actuator will automatically be filled (loaded with air) or vented (exhausted) when this function is executed, the control valve moves to its absolute end position. Constraints specified in the function "travel range" or "travel limit" are inapplicable here. This function must be d...
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States: default (coldstart) value: no/yes yes fault alarm: special function fault message for controller in special function (zero calibration, initialization, test functions). States: default (coldstart) value: no/yes yes fault alarm: total valve travel exceeded fault alarm whenever the limit value...
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Range: default (coldstart) value: 0.0 % to 120 % 2.0 % limit switch software gw2 limit value alarm referring to travel/angle range, determined by the software from the signal of the travel (displacement) pick-up. (switching hysteresis 1%). Range: default (coldstart) value: 0.0 % to 120 % 98 % limit ...
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Mounting position (linear actuator) an arrow is located on the cover plate of the positioner, which is used for alignment on the actuator. This arrow must either point toward the actuator (direct attachment) or away from the actuator (namur attachment). Exception: control valves for which the seat i...
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Range: default (coldstart) value: 0 to 15 0 for ibis devices → bus address positioner type number type number of the positioner position transmitter indicates whether the option position transmitter is installed. States: not installed/installed product number manufacturers product number of the pos...
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Pulse adaptation adaptation of the minimum pulses in order to optimize the control algorithm for the system comprising positioner, actuator and valve. In normal control mode the parameter should be set to "automatic". Disable this parameter when tuning the control parameters. For r 1.20 and upwards,...
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State of software limit switch gw1/ gw2 state of the software limit switch gw1 or gw2. States: off, ≤ 1 ma on, ≥ 3 ma test of fault alarm (special function) functional test of the fault alarm output by activating it three times. Test of position transmitter (special function) test of the optional po...
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Transmission pin position pin position of the positioner lever. See marking on the positioner lever. Only for attachment to linear actuator acc. To namur. States: default (coldstart) value: a/b a travel/angle limit lower lower limitation of valve travel/angle to the entered value. The characteristic...
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Write protection when this option is activated, the device data can only be read, but they cannot be overwritten. The only way to activate the write protection is using the switch installed on the device. States: activated/deactivated zero calibration (special function) zero correction with valid me...
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9. Error messages and diagnostics 9.1 information/alerts 54 9.1.1 device settings changed 54 9.1.2 insufficient power supply 54 9.1.3 warmstart completed 54 9.1.4 coldstart completed 54 9.1.5 choose "manual" mode 54 9.1.6 parameter not supported 55 9.1.7 limit value of total valve travel exceeded 55...
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During the initialization cycle, the type 3780 hart ® positioner offers the best possibilities for diagnosis. In the automatic mode, detailed tests are carried out in order to check the at- tachment situation and the positioners reaction while taking the preset or entered data into account. When ro...
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9.1.6 parameter not supported after downloading to the positioner, the positioner intelligence replies that this parameter is unknown. This message can occur with older firmware versions. The device is automatically reset after acknowledgement. 9.1.7 limit value of total valve travel exceeded the cu...
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9.2 error messages 9.2.1 communication fault this message is displayed when the hart ® communication is interrupted. Possible sources of error: auxiliary power too low or power failure fsk modem not properly connected communication (for example com1) configured incorrectly [options → con- figure com...
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Impurities between valve plug/seat the device is reset after the zero adjustment has been carried out effectively. 9.2.4 zero calibration erroneous, mechanical readjustment necessary the value determined during electric zero calibration exceeds the permissible tolerance of ± 5 % by the internal abso...
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Characteristic fault in case a characteristic fault (sections 9.2.9 to 9.2.11) occurs, the characteristic is automat- ically switched from user-defined to linear after downloading data to the positioner. 9.2.9 erroneous characteristic this message is generated when errors are recognized during trans...
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9.2.16 communication data memory erroneous a memory block in the ram/eeprom area cannot be written. Repair required. 9.2.17 checksum error communication data memory this message is generated when, during cyclic check, a memory block in the communication parameter area has been modified without verif...
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9.3.2 air leakage of pneumatic system the actuator stalls for a few seconds when the duty cycle is being determined. This time is used by initialization to check the pneumatic system for leaks. If the control valve moves more than 9.3 % from this resting position within 7 seconds, initialization is ...
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9.4.2.2 zero calibration error the determined zero point does not lie within the acceptable tolerance limit of max. ± 5 % by the internal absolute value for the detection of measured values. To eliminate this error, mechanical zero must be adjusted. The yellow pointer of the displace- ment sensor mu...
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39 35 14 198 78.5 40 86 30.5 164 150 27 14 28 56 58 n1=113 n2=200 39 50 78.5 45 50 82 150 164 27 75 56 50 86 46 28.5 28.5 output 1 (a1) output 2 (a2) supply (z) output (38) supply (9) m20 x1.5 fulcrum of actuator shaft dimensional diagram pneumatic connections g 1/4 or npt 1/4 attachment with interm...
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⋅ ⋅ ⋅ ⋅ 2017-07.