Series 3730 Type 3730-1 Electropneumatic Positioner Fig. 1 · Type 3730-1 Mounting and Operating Instructions EB 8384-1 EN (1300-1610) Firmware version 2.
Contents Contents Page 1 Important safety instructions . . . . . . . . . . . . . . . . . . . . . . 6 2 Article code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 3.1 Design and principle of operation. . . . . . . . . . . . . . . . . . . . 8 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4 4.1 4.1.1 4.1.2 4.2 Attachment to the control valve – mounting parts and accessories Direct attachment . . . . . . . . . . . . . . . . . . . . . . . .
Contents 7.6 Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 7.7 Zero calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 7.8 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 7.9 Manual adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . 44 8 Code list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 9 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EB 8384-1 EN
Revision in positioner firmware Revision in positioner firmware compared to the previous version Previous version New 2.02 2.10 New reset function in Code P0, refer to section 7.8 New manual adjustment function in Code P14, refer to section 7.9 2.10 2.11 Internal modifications 2.11 2.
Important safety instructions 1 Important safety instructions For your own safety, follow these instructions concerning the mounting, start-up and operation of the positioner: 4 The positioner is to be mounted, started up or operated only by trained and experienced personnel familiar with the product.
Article code 2 Article code Article code Type 3730-1 x x 0 0 0 0 0 0 0 x 0 0 x 0 0 0 With LCD, autotune 4 to 20 mA reference variable, two software limit switches Explosion protection Without 0 ATEX: II 2G Ex ia IIC T6 Gb, II 2D Ex tb IIIC T 80 °C Db IP 66 1 3 FM/CSA: Class I, Zone 0 AEx ia IIC; Class I, II, III; Div.1, Groups A–G; Class I, Div. 2, Groups A–D; Class II, Div. 2, Groups F, G/ Ex ia IIC T6; Class I, Zone 0; Class II, Groups E–G; Ex nA II T6; Class I, Zone 2; Class I, Div.
Design and principle of operation 3 Design and operation principle of The electropneumatic positioner is mounted to pneumatic control valves and is used to assign the valve position (controlled variable x) to the control signal (reference variable w). The DC control signal received from a control unit is compared to the travel or rotational angle of the control valve and issues a signal pressure (output variable y).
Design and principle of operation 12 S % mm mm % A1 11 w A2 4 5 w PD x 3 2 6 9 8 y 7 1 2 3 4 5 6 Control valve Travel sensor PD controller A/D converter Microcontroller i/p converter 1 Q x 10 7 8 9 10 11 12 Air capacity booster Pressure regulator Flow regulator Volume restriction Limit switches Display Fig.
Design and principle of operation 3.1 Technical data Positioner (technical data in test certificates additionally apply for explosion-protected devices) Travel, adjustable Direct attachment to Type 3277: 3.6 to 30 mm Attachment acc. to IEC 60534-6: 3.
Design and principle of operation Positioner (technical data in test certificates additionally apply for explosion-protected devices) ATEX Type 3730-11 Type 3730-18 Explosion protection II 2G Ex ia IIC T6 Gb, II 2D Ex tb IIIC T80°C Db IP66 II 3G Ex nA II T6, II 3G Ex ic IIC T6, II 3D Ex tc IIIC T80°C IP66 CSA Type 3730-13 Ex ia IIC T6; Class I, Zone 0; Class II, Groups E, F, G; Ex nA II T6; Class I, Zone 2; Class I, Div.2, Groups A, B, C, D; Class II, Div.
Attachment to the control valve – mounting parts and accessories 4 Attachment to the control valve – mounting parts and accessories The positioner can be attached either directly to a SAMSON Type 3277 Actuator or according to IEC 60534-6 (NAMUR) to control valves with cast yokes or rod-type yokes as well as to rotary actuators according to VDI/VDE 3845. For attachment to the various actuators, corresponding mounting parts and accessories are required.
Attachment to the control valve – mounting parts and accessories Travel tables Note: The lever M is included in the scope of delivery. Levers S, L, XL for attachment according to IEC 60534-6 (NAMUR) are available as accessories (Table 3, page 31). Direct attachment to Type 3277-5 and Type 3277 Actuators Actuator size Rated travel [cm²] [mm] Adjustment range at positioner Min. Travel Max. Required lever Assigned pin position 120 7.5 5.0 to 25.0 M 25 120/175/240/350 15 7.0 to 35.
Attachment to the control valve – mounting parts and accessories 4.1 Direct attachment 4.1.1 Type 3277-5 Actuator Refer to Table 1 on page 29 for the required mounting parts as well as the accessories. Note the travel table on page 13! Actuator with 120 cm² Depending on the type of positioner attachment, the signal pressure is routed either left or right of the yoke through a bore to the actuator diaphragm.
Attachment to the control valve – mounting parts and accessories Symbols 1 1.1 1.2 2 3 4 5 6 6.1 7 8 9 10 10.1 11 14 15 Switchover plate (9) Actuator stem extends Attachment left Attachment right Actuator stem retracts Signal pressure input for left attachment Marking Signal pressure input for right attachment 15 Lever Nut Disk spring Follower pin Follower clamp Screw plug Stopper Connecting plate Seal rings Pressure gauge bracket Press. gauge mounting kit Switchover plate f.
Attachment to the control valve – mounting parts and accessories 4.1.2 Type 3277 Actuator Refer to Table 2 on page 31 for the required mounting parts as well as the accessories with their order numbers. Note the travel table on page 13! Actuators with 175 to 750 cm² Mount the positioner on the yoke as shown in Fig. 5.
Attachment to the control valve – mounting parts and accessories 1 1.1 1.2 2 3 10 11 11.1 Lever Nut Disk spring Follower pin Follower clamp Cover plate Cover Vent plug 12 Connection block 12.1 Screw 12.2 Stopper or connection for external piping 13 Switch plate 14 Gasket 15 Formed seal 16 Gasket 15 10 14 1 2 3 11 11.1 2 Lever M 1.1 1.2 Cut-out of cover plate (10) View C Ansicht C View A Ansicht A 16 16 G G 3/8 SUPPLY C Actuator stem retracts extends 16 12 SUPPLY 12.1 12.
Attachment to the control valve – mounting parts and accessories 4.2 Attachment according to IEC 60534-6 The positioner is attached to the control valve with a NAMUR bracket (10). Refer to Table 3 on page 31 for the required mounting parts as well as the accessories with their order numbers. Note the travel table on page 13! 1. Screw the two bolts (14) to the bracket (9.1) of the stem connector (9), place the follower plate (3) on top and use the screws (14.1) to tighten.
Attachment to the control valve – mounting parts and accessories Attachment to rod-type yoke Rods with 20 to 35 mm Ø 15 11 10 9 Attachment to NAMUR rib 9.1 3.1 16 Additional bracket for actuators with 2800 cm2 and travel ≥ 60 mm 1 Lever XL and L Lever 1 Nut Disk spring Follower pin 2 Follower plate 1.1 Follower plate 6.1 6 1.2 Connecting plate 1 Seal rings Pressure gauge bracket Pressure gauge mounting kit 9 Stem connector 9.1 Bracket 10 NAMUR bracket 11 Screw 14 Bolt 14.
Attachment to the control valve – mounting parts and accessories 4.3 Attachment according to VDI/VDE 3847 Only Type 3730-1xx0000000x0x006000 and Type 3730-1xx0000000x0x007000 Positioners can be attached according to VDI/VDE 3847. The attachment of positioners according to VDI/VDE 3847 is described in detail in the TV-SK 10021 document which is available on request. 4.4 Attachment to Type 3510 Micro-flow Valve The positioner is attached to the valve yoke using a bracket.
Attachment to the control valve – mounting parts and accessories 12.1 11 11.1 10 10.1 9 9.1 3 9.2 1.2 1 1.1 1.2 2 3 6 6.1 7 1 8 9.3 Note: Always use the connecting plate (6) included in the accessories to connect supply and output. Never screw threaded parts directly into the housing. 6 6.1 1.1 2 9 9.1 9.2 Lever Nut Disk spring Follower pin Follower plate Connecting clamp Seal rings Pressure gauge bracket Pressure gauge mounting kit Stem connector Bracket Pin 10 10.1 11 11.1 12.
Attachment to the control valve – mounting parts and accessories 4.5 Attachment to rotary actuators The positioner is mounted to the rotary actuator using two pairs of double brackets. Refer to Table 4 on page 31 for the required mounting parts as well as the accessories with their order numbers. Prior mounting the positioner to the SAMSON Type 3278 Rotary Actuator, you have to mount the associated adapter (5) to the free end of the rotary actuator shaft.
Attachment to the control valve – mounting parts and accessories 6.1 1 1.2 1.1 2 4.3 10 10.1 6 (7, 8) 4 5 Note: Always use the connecting plate (6) included in the accessories to connect supply and output. Never screw threaded parts directly into the housing. Legends Figs. 8 and 9 1 Lever 1.1 Nut 1.2 Disk spring 2 Follower pin 3 Follower clamp (Fig. 8) 4 Coupling wheel 4.1 Screw 4.2 Disk spring 4.3 Scale plate 5 Actuator shaft Adapter for Type 3278 6.
Attachment to the control valve – mounting parts and accessories 4.5.1 Heavy-duty version Refer to Table 4 on page 31 for the required mounting parts as well as the accessories with their order numbers. Both mounting kits contain all the necessary mounting parts. First select correct actuator size. Prepare actuator, and mount required adapter supplied by the actuator manufacturer, if necessary. 1. Mount the housing (10) onto the rotary actuator.
Attachment to the control valve – mounting parts and accessories 1 1.1 1.2 2 3 4 4.1 4.2 4.3 5 Lever Nut Disk spring Follower pin Adapter Coupling wheel Screw Disk spring Adhesive label Actuator shaft or adapter 5.1 Adapter 6 6.1 7 8 10 10.1 11 Connecting plate (only for G ¼) Seal rings Pressure gauge bracket Pressure gauge mounting kit Adapter housing Screws Spacers Fit restriction into signal pressure output for actuators with < 300 cm³ volume 6 6.1 7 8 1 1.1 1.2 2 4.1 4.2 4 4.3 4.1 4.2 4 4.
Attachment to the control valve – mounting parts and accessories 4.6 Reversing amplifier for double-acting actuators The following applies to all reversing amplifiers: 2. Thread the special nuts (1.3) from the accessories of the reversing amplifier into the boreholes of the connecting plate. 3. Insert the gasket (1.2) into the recess of the reversing amplifier and push both the special hollow screws (1.1) into the connecting boreholes A1 and Z. 4.
Attachment to the control valve – mounting parts and accessories From the positioner Output 38 A1 Supply 9 Z A2 Control signals to the actuator A1 1.1 1.2 A2 1 1.1 1.2 1.3 1.4 1.5 1.6 6.2 1.5 1.6 Reversing amplifier Special screws Gasket Special nuts Rubber seal Sealing plug Filter 6 Connecting plate 6.1 O-rings 6.2 Screws Supply 9 6 1.4 Z Output 38 6.1 1.3 A1 1.3 1.2 1.1 1 1.6 Fig.
Attachment to the control valve – mounting parts and accessories 4.7 Attaching positioners with stainless steel housings Positioners with stainless steel housings require mounting parts that are completely made of stainless steel or free of aluminum. Note: The pneumatic connecting plate and pressure gauge bracket are available made of stainless steel (order numbers listed below). The Type 3710 Pneumatic Reversing Amplifier is also available in stainless steel.
Attachment to the control valve – mounting parts and accessories over piping. An adapter available as an accessory is used for this purpose: Threaded bushing G ¼ (M20 x 1.5): ¼ NPT 0310-2619 0310-2550 NOTICE The adapter uses one of the M20x1.5 connections in the housing which means just one cable gland can be installed. 4.9 Should other valve accessories be used which vent the actuator (e.g.
Attachment to the control valve – mounting parts and accessories Order no. Table 2 · Direct attachment to Type 3277 (Fig. 5) Mounting parts Standard version for actuators with 175, 240, 350, 355, 700, 750 cm² 1400-7453 Version compatible with paint for actuators with 175, 240, 350, 355, 700, 750 cm² 1402-0941 Steel 175 cm² Stainl. steel Steel 240 cm² Stainl. steel Steel 350 cm² Stainl.
Attachment to the control valve – mounting parts and accessories Table 3 · Attachment to NAMUR ribs or control valves with rod-type yokes (20 to 35 mm rod diameter) according to IEC 60534-6 (Figs. 6 and 7) Order no. Travel in mm Lever For actuator 7.5 S Type 3271-5 Actuator with 60/120 cm² on Type 3510 Valve (Fig.
Attachment to the control valve – mounting parts and accessories Accessories 1 4 1400-7461 NPT 1400-7462 G Connecting plate (6) 1 4 1 4 1400-7458 NPT 1400-7459 G Pressure gauge bracket (7) 1 4 Pressure gauge mounting kit up to max. 6 bar (output/supply) St. steel/brass 1400-6950 St. steel/st. steel 1400-6951 Order no. Table 5 · General accessories Accessories Pneumatic reversing amplifier for double-acting actuators Type 3710 Cable gland M20 x 1.
Connections 5 Connections WARNING! Mount the positioner, keeping the following sequence: 1. Remove protective film from pneumatic connections. 2. Mount the positioner on the control valve 3. Connect the supply air 4. Connect the electrical power 5. Perform the start-up settings The connection of the electrical auxiliary power may cause the actuator stem to move, depending on the operating mode. Do not touch the actuator stem or obstruct it to avoid risk of injury to hands or fingers. 5.
Connections 5.1.1 Signal pressure gauges To monitor the supply air (Supply) and signal pressure (Output), we recommend that pressure gauges be attached (see accessories in Tables 1 to 5). d = Seat diameter [cm] ∆p = Differential pressure across the valve [bar] A = Actuator diaphragm area [cm²] F = Upper bench range of the actuator [bar] 5.1.2 Supply pressure The required supply air pressure depends on the bench range and the actuator's operating direction (fail-safe action).
Connections 5.2 Electrical connections DANGER! Risk of electric shock and/or the formation of an explosive atmosphere! – For electrical installation, observe the relevant electrotechnical regulations and the accident prevention regulations that apply in the country of use. – The following regulations apply to mounting and installation in hazardous areas: EN 60079-14: 2008 Explosive atmospheres – Part 14: Electrical installations design, selection and erection (or VDE 0165 Part 1).
Connections Cable entries Cable entry with M20x1.5 cable gland, 6 to 12 mm clamping range. There is a second M20x1.5 threaded bore in the housing that can be used for additional connection, when required. The screw terminals are designed for wire cross-sections of 0.2 to 2.5 mm². Tighten by at least 0.5 Nm. The wires for the reference variable must be connected to the terminals 11 and 12 located in the housing.
Connections Refer to Fig. 13 for the terminal assignment. NOTICE The minimum permissible reference variable must not fall below 3.7 mA for the operation of the positioner. Accessories: Cable gland M20 x 1.5 Order no. Black plastic (6 to 12 mm clamping range) 8808-1011 Blue plastic (6 to 12 mm clamping range) 8808-1012 Nickel-plated brass (6 to 12 mm clamping range) 1890-4875 Nickel-plated brass (10 to 14 mm clamping range) 1922-8395 Stainless steel 1.4305 (8 to 14.
Operation 6 Operation The positioner is mainly operated with the rotary pushbutton. The volume restriction must be set first to adapt the air delivery. 6.1 Operator controls Rotary pushbutton Turn the button to select a parameter code (P0 to P16) and then press it to confirm the parameter code selected. If you want to change a parameter value, turn the button to select the required valve. Then press the button to confirm the value.
Start-up Volume restriction Q The volume restriction is used to adapt the air delivery to the actuator size. Two fixed settings are possible depending on how the air is routed at the actuator. See section 7.1 for more details. Display The LC display indicates icons that are assigned to codes and functions. The bar graph indicates the system deviation that depends on the sign (+/–) and the value. One bar graph element appears per 1 % system deviation.
Start-up 7.1 Setting the volume restriction Q Overview · Position of the volume restriction* <1s ≥1s Connection at the side MIN SIDE MAX SIDE Connection at the back MIN BACK MAX BACK Signal pressure MAX BACK MIN SIDE MIN BACK MAX SIDE Q Fig. 15 · Volume restriction Q MAX BACK/MIN SIDE setting The volume restriction Q is used to adapt the air delivery to the size of the actuator: 4 Actuators with a transit time < 1 s, e.g.
Start-up The signal pressure is the air pressure at the output of the positioner, which is applied to the actuator. If you want to change the default setting of a parameter, proceed in the same manner as previously described. AIR TO OPEN/ATO is always used with positioners fitted with a reversing amplifier for double-acting actuators (connections described in section 4.6) More details concerning the parameter codes can be found in section 8. Default ATO Turn until Code P2 appears.
Start-up Note: For standard operation, after the positioner is mounted on the valve and the volume restriction has been set and the fail-safe position has been checked over Code P2, start initialization over Code P15 to ensure the optimal functioning of the positioner. The positioner works with its standard settings (default settings). WARNING! During the initialization, the control valve moves through its entire travel/angle of rotation range.
Start-up 7.6 Faults On the occurrence of a fault, the fault icon appears at the bottom of the display. By turning the button past Code P0 or P16, the respective error code E0 to E15 together with ERR appear on the display. Refer to the code list in section 8 for the cause of the errors and the recommended action.
Start-up Zero calibration has started, the display blinks! The positioner moves the control valve to the CLOSED position and recalibrates the internal electric zero point. When the zero calibration has been successfully completed, the positioner returns to closed loop operation (status indication). Canceling zero calibration The zero calibration can be canceled by pressing . The positioner then moves to the fail-safe position (indicated by S on the display).
Code list 8 Code list Code Display, values [default setting] Description Parameter codes Codes marked with * can be changed without having to re-initialize the positioner Status indication mode of the display showing basic information. Reset, refer to section 7.8. P0 The reading indicates the valve position or the angle of rotation in % when the positioner is initialized, otherwise the position of the lever in relation to the mid-axis is indicated in degrees (°).
Code list P7 * w/x >> /<> [>>] Gain KP 30/[50] P8 Direction of action of the reference variable w to the travel/rotational angle x (increasing/increasing or increasing/decreasing). On initializing the positioner, the gain is set to the selected value. P9 * Pressure limit ON/[OFF] The signal pressure can take on the same pressure as the supply air at the maximum [OFF] or, in the case that the maximum actuator force can damage the valve, the pressure is limited to approx. 2.4 bar.
Code list Error codes E0 Zero error Only with tight-closing function P10 w < set to ON The zero point has shifted by more than 5 % compared to initialization. The erro may arise when the mounting position/linkage of the positioner moves or when the valve seat trim is worn, especially with soft-sealed plugs. Recommended action Check valve and mounting of the positioner. If OK, perform a zero calibration over Code P16 (see section 7.7) or select the error code and reset with RST.
Code list E7 Actuator does not move No supply air, mounting blocked. No input signal or input signal below 3.7 mA Recommended action Check supply air, positioner mounting and mA input signal. Re-initialize the positioner. E8 Travel signal at lower limit Wrong pin position, wrong lever, wrong attachment direction when NAMUR attachment is used. Recommended action Check positioner mounting and re-initialize the positioner.
Maintenance 9 Maintenance The positioner does not require any maintenance. There are filters with a 100 µm mesh size in the pneumatic connections for supply and output which can be removed and cleaned, if required. The maintenance instructions of any upstream supply air pressure reducing stations must be observed.
EB 8384-1 EN
Dimensions in mm 11 Dimensions in mm Pressure gauge or connecting plate bracket NAMUR attachment Lever mm S = 17 M = 50 L = 100 XL = 200 70 15 58 46 210 34 M20 x 1.5 14 34 80 Direct attachment 40 28 58 86 164 Output (38) Supply (9) Reversing amplifier (optional)* Fig.
Dimensions in mm Heavy-duty version Output Y1 Output Y1 Supply (9) 86 56 80 52 Output Y2 80 130 166 30 86 Ø 101 Output Y2 Reversing amplifier (optional)* Light version Output A1 Supply (9) 50 Z 76 A1 79 59 49 A2 58 Output A2 50 Connecting plate G ¼ or ¼ NPT 80 130 150 * Reversing amplifier – Type 3710 (see drawing of heavy-duty version for dimensions) – 1079-1118/1079-1119, no longer available (see drawing of light version for dimensions) Fig.
Dimensions in mm 11.1 Fixing levels according to VDI/VDE 3845 (September 2010) Mmin Level 2 (bracket surface) 25 M6 C Level 1 (actuator surface) Actuator Dimensions in mm Ød B ØD A Size A B C ∅d Mmin ∅D* AA0 50 25 15 5.5 for M5 66 50 AA1 80 30 20 5.5 for M5 96 50 AA2 80 30 30 5.5 for M5 96 50 AA3 130 30 30 5.5 for M5 146 50 AA4 130 30 50 5.5 for M5 146 50 AA5 200 50 80 6.
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EB 8384-1 EN S/Z 2014-12 SAMSON AG · MESS- UND REGELTECHNIK Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 Internet: http://www.samson.
