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rotork YT-3700 Product Manual

Smart positioner
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SMART POSITIONER
PRODUCT MANUAL
YT-3700 / 3750 / 3702
.
YT-3700
YT-3750
YT-3702
Rotork YTC Limited
VERSION 1.26

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  • Page 1 SMART POSITIONER PRODUCT MANUAL YT-3700 / 3750 / 3702 YT-3700 YT-3750 YT-3702 Rotork YTC Limited VERSION 1.26...

  • Page 2: Table Of Contents

    Main Features and Functions .......................9 Label Description ..........................10 Product Code ............................. 15 2.4.1 YT-3700 / 3750 series follows suffix symbols as follows............... 15 2.4.2 YT-3702 series follows suffix symbols as follows................16 Product Specification ......................... 17 2.5.1 YT-3700 / 3750 Specification ......................
  • Page 3 5.2.2 Terminals with micro-limit switch option (Only YT-3700 / 3750) ........... 44 5.2.3 Terminals with inductive proximity Limit Switch option (Only YT-3700 / 3750) ......45 Ground ............................... 45 Adjustments ............................. 46 Limit Switch Adjustment (Only YT-3700 / 3750) ................46 A/M switch adjustment ........................
  • Page 4 Smart Positioner YT-3700 / 3750 / 3702 Product Manual 9.8.6 GAP P parameter (GP) ........................68 9.8.7 GAP I parameter (GI) ........................68 9.8.8 GAP D parameter (Gd) ........................69 9.8.9 Auto Dead band Mode (AUTO db) ....................70 9.8.10 Performance Mode (PER STbL / NORM / FAST) ..............
  • Page 5 Smart Positioner YT-3700 / 3750 / 3702 Product Manual 9.12.4 View Monitoring Counts (VI CNTS) ................... 99 9.12.5 Diagnostic Limit Configuration (LIMT CFG) ................100 9.12.6 Reset Alarm Status (RST ALRM oFF / on) ................101 9.12.7 View Event Log (EVT LOG) ..................... 102 9.12.8...

  • Page 6: Introduction

    Introduction General Information for the users Thank you for purchasing Rotork YTC Limited products. Each product has been fully inspected after its production to offer you the highest quality and reliable performance. Please read the product manual carefully prior to installing and commissioning the product.

  • Page 7: Explosion Proof Warning (Only For Intrinsic Safety Type Positioners)

    été enlevées ou la zone est connue pour être non dangereux. ➢ The enclosure of model YT-3700 / 3702 contains aluminum, which is considered to constitute a potential risk of ignition when subjected to impact or friction. Care must be used during installation in locating this equipment to prevent impact or friction ➢...
  • Page 8 Div/Group IIA, Zone gases to a safe area. ➢ FM/CSA : Using gases other than air must be compatible with the YT-3700 series wetted parts. ➢ FM/CSA : This equipment shall not be used in an atmosphere that may contain carbon disulfide ➢...

  • Page 9: Product Description

    Product Description General YT-3700 / 3750 / 3702 series Smart Valve Positioner accurately controls valve stroke in response to an input signal of 4 ~ 20 mA from the controller. Built-in micro-processor optimizes the positioner’s performance and provides unique functions such as Auto-Calibration, PID Control, and HART Protocol Communications.

  • Page 10: Label Description

    ATEX: Ui = 28 V, Ii = 93 mA, Pi = 651 mW, Ci = 0.6 nF, Li = 10 μH FM: Ui = xx V, Ii = xx mA, Pi = xxx mW, Ci = x.xx nF, Li = xx μH You can also see the details in the certificate. Fig. L-1: YT-3700 / 3702 Non-explosion proof Ver. 1.26...
  • Page 11 Smart Positioner YT-3700 / 3750 / 3702 Product Manual Fig. L-2: YT-3700 / 3702 Non-explosion proof (EAC) Fig. L-3: YT-3700 Intrinsic safety type (UKEX, ATEX, IECEx, KCs, NEPSI, PESO) Fig. L-4: YT-3700 Intrinsic safety type (FM, CSA) Ver. 1.26...
  • Page 12 Smart Positioner YT-3700 / 3750 / 3702 Product Manual Fig. L-5: YT-3700 Intrinsic safety type (EAC) Fig. L-6: YT-3700 Intrinsic safety type (INMETRO) Fig. L-7: YT-3700 Intrinsic safety type (CCC) Ver. 1.26...
  • Page 13 Smart Positioner YT-3700 / 3750 / 3702 Product Manual Fig. L-8: YT-3750 Non-explosion proof Fig. L-9: YT-3750 Intrinsic safety type (UKEX, ATEX, IECEx, KCs, NEPSI, PESO) Fig. L-10: YT-3750 Intrinsic safety type (FM, CSA) Ver. 1.26...
  • Page 14 Smart Positioner YT-3700 / 3750 / 3702 Product Manual Fig. L-11: YT-3750 Intrinsic safety type (EAC) Fig. L-12: YT-3750 Intrinsic safety type (INMETRO) Fig. L-13: YT-3750 Intrinsic safety type (CCC) Ver. 1.26...

  • Page 15: Product Code

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Product Code YT-3700 / 3750 series follows suffix symbols as follows. 2.4.1 YT-3700 / 3750 1 Linear (Positioner is attached the right yoke of actuator.) Motion Type Rotary Single Acting type...

  • Page 16: Yt-3702 Series Follows Suffix Symbols As Follows

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual In case of INMETRO, put “INMETRO” in a purchase order. This option is only available for “S”, “L” in operating temp. This option is only available for “S” in operating temp.

  • Page 17: Product Specification

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Maximum cable length is 20m. Product Specification YT-3700 / 3750 Specification 2.5.1 Model YT-3700 YT-3750 Housing Material Aluminum Stainless Steel 316 Motion Type Linear Rotary Linear Rotary Acting Type Single / Double...

  • Page 18: Yt-3702 Specification

    2 kg (4.4 lb) 5.1 kg (11.2 lb) Painting Polyester Powder Coating Tested under ambient temperature of 20 °C, absolute pressure of 760 mmHg, and humidity of 65 %. Please contact Rotork YTC Limited for detailed testing specification. YT-3702 Specification 2.5.2 Model YT-3702...

  • Page 19: Specification Of Digital Input, Digital Output

    Painting Polyester Powder Coating Tested under ambient temperature of 20 °C, absolute pressure of 760 mmHg, and humidity of 65 %. Please contact Rotork YTC Limited for detailed testing specification. Specification of Digital Input, Digital Output 1) Digital Input •...

  • Page 20: Certifications

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Certifications ※ All certifications below are posted on Rotork YTC Limited homepage(www.ytc.co.kr). KCs (Korea) ➢ Type : Intrinsic safety Rating : Ex ia IIC T6/T5, Ex ia IIIC T85°C/T100°C Certification No. : 19-KA2BO-0874X / 19-KA2BO-0877X (YT-3700 gas / dust)
  • Page 21 Smart Positioner YT-3700 / 3750 / 3702 Product Manual ➢ Type : Intrinsic safety Rating : Class I, Division 1&2 Groups ABCD T5/T6 Class II, Division 1&2 Groups EFG T100°C/T85°C Class III Ex ia IIC T5/T6 Gb Ex tb IIIC T100°C/T85°C Db IP6X Certificate No.: CSA20CA80016582X...

  • Page 22: Parts And Assembly

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Parts and Assembly YT-3700 / 3750 2.8.1 Fig. 2-1: Exploded view of standard type positioner 1. Base Cover 7. Base body 2. PCB Cover 8. Pilot Block 3. Main PCB 9. Auto Manual Switch 4.
  • Page 23 Smart Positioner YT-3700 / 3750 / 3702 Product Manual Fig. 2-2: Exploded view of limit switch type positioner 1. Base Cover 8. Potentiometer 2. PCB Cover 9. Base body 3. Main PCB(limit switch type) 10. Pilot Block 4. Torque Motor 11.
  • Page 24 Smart Positioner YT-3700 / 3750 / 3702 Product Manual YT-3702 2.8.2 Positioner Remote sensor Fig. 2-3: Exploded view 1. Base cover of Positioner 9. Remote cable 2. PCB cover of Positioner 10. Base cover of remote sensor 3. PCB of Positioner 11.

  • Page 25: Product Dimension

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Product Dimension YT-3700 2.9.1 Fig. 2-4: YT-3700L Fig. 2-5: YT-3700R+LS YT-3750 2.9.2 Fig. 2-6: YT-3750L Fig. 2-7: YT-3750R+LS Ver. 1.26...
  • Page 26 Smart Positioner YT-3700 / 3750 / 3702 Product Manual YT-3702 2.9.3 Fig. 2-8: Remote Sensor Fig. 2-9: Positioner Ver. 1.26...

  • Page 27: Installation

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Installation Safety When installing a positioner, please ensure to read and follow safety instructions. ➢ Any input or supply pressures to valve, actuator, and / or to other related devices must be turned off.

  • Page 28: Linear Positioner Installation

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Linear positioner Installation Linear positioner should be installed on linear motion valves such as globe or gate type which uses spring return type diaphragm or piston actuators. Fig. 3-2: YT-3700L / 3750L Installation example Fig.

  • Page 29: Standard Lever Type Positioner Installation Steps

    1) Assemble the positioner or remote sensor with the bracket made in previous step by fastening the bolts. Fig. 3-4: YT-3700 / 3750 Linear positioner, bracket, actuator Fig. 3-5: Attaching positioner to bracket Fig. 3-6: Attaching the bracket to actuator yoke...
  • Page 30 Smart Positioner YT-3700 / 3750 / 3702 Product Manual 4) Connect an air-filter regulator to the actuator temporarily. Supply enough air pressure to the actuator in order to position the valve stroke at 50 % of the total stroke. Fig. 3-7: YT-3700L / 3750L Fig.
  • Page 31 Smart Positioner YT-3700 / 3750 / 3702 Product Manual 5) Insert the connection bar between the feedback lever and lever spring. The connection bar must be located upward from the lever spring as shown below left figure. If it is located downward from the lever spring as shown below right figure, the connection bar or the lever spring will be worn out quickly because of excessive strong tension.
  • Page 32 Smart Positioner YT-3700 / 3750 / 3702 Product Manual 7) Check the valve stroke. The stroke numbers are engraved on the feedback lever of the positioner. Position the connection bar at the number on the feedback lever which corresponds with the desired valve stroke.
  • Page 33 Smart Positioner YT-3700 / 3750 / 3702 Product Manual 8) After installing the positioner, operate the valve from 0 % to 100 % stroke by using direct air to the actuator. On both 0 % and 100 %, the feedback lever should not touch the lever stopper, which is located on the backside of the positioner.

  • Page 34: Rotary Positioner Installation

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual 9) After the installation, tighten all of the bolts on the bracket and the connection bar. Rotary positioner Installation Rotary positioner should be installed on rotary motion valve such as ball or butterfly type which uses rack and pinion, scotch yoke or other type of actuators which its stem rotates 90 degrees.

  • Page 35: Yt-3702R Remote Sensor Components

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual YT-3702R remote sensor components 3.4.2 ➢ Rotary remote sensor ➢ Rotary bracket set (2 pieces) ➢ 4 pcs x hexagonal headed bolts (M5) : For the remote sensor and the upper bracket ➢...

  • Page 36: Rotary Bracket Information (Only Yt-3700R / 3750R)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Rotary Bracket Information (Only YT-3700R / 3750R) 3.4.3 The rotary bracket set (included with the positioner) contains two components. The bracket is designed to fit onto the actuator with 20 mm, 30 mm and 50 mm stem height (H) according to VDI/VDE 3845 standard.

  • Page 37: Rotary Positioner Installation Steps

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Fig. 3-20: Actuator stem Height Fig. 3-21: Exploded Brackets Rotary positioner Installation Steps 3.4.4 1) Please check the actuator’s stem height and adjust the brackets by referring to the above bracket table.

  • Page 38: Connection - Air

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Connection - Air Safety ➢ Supply pressure should be clean and dry air – avoiding moisture, oil and dust. Always recommended to use air filter regulator (i.e. YT-200 series). ➢ ➢...

  • Page 39: Connection - Piping With Actuator

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Connection – Piping with actuator Single acting actuator 4.4.1 Singe acting type positioner is set to use only OUT1 port. OUT1 port of positioner should be connected with supply port of actuator when using spring return actuator of single acting type.

  • Page 40: Double Acting Actuator

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Double acting actuator 4.4.2 Double acting type positioner is set to use OUT1 and OUT2 port. As input signal increases, the supply pressure will be supplied through OUT1 port. Fig. 4-5: Double acting linear actuator (YT-3700L / 3750L) Fig.

  • Page 41: Connection - Power

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Connection – Power Safety ➢ There are two conduit entries on the product. See “2.4 Product Code” for conduit entry threads. Before connecting terminal, ensure that the power is off completely.

  • Page 42: Connection

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Connection Standard Terminals 5.2.1 The input/output terminals of the basic model are connected to an external system as shown below. Refer to the table below for the signal name and function of each terminal.
  • Page 43 Smart Positioner YT-3700 / 3750 / 3702 Product Manual Terminal Signal name Function name Current input signal (+) Apply analog current command 4 ~ 20 mA to this terminal to supply power and signal to the positioner. Current input signal (-)

  • Page 44: Terminals With Micro-Limit Switch Option (Only Yt-3700 / 3750)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Terminals with micro-limit switch option (Only YT-3700 / 3750) 5.2.2 The input and output terminals of products equipped with micro-limit switches can be connected to an external system as shown below. Refer to the table below for the signal name and function of each terminal.

  • Page 45: Terminals With Inductive Proximity Limit Switch Option (Only Yt-3700 / 3750)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Terminals with inductive proximity Limit Switch option (Only YT-3700 / 3750) 5.2.3 The input and output terminals of products equipped with inductive proximity limit switch switches can be connected to an external system as shown below. Refer to the table below for the signal name and function of each terminal.

  • Page 46: Adjustments

    Product Manual Adjustments Limit Switch Adjustment (Only YT-3700 / 3750) YT-3700 / 3750 can have limit switch option. If user wants to adjust the sensing position, please loosen bolts and adjust cam. Fig. 6-1: Mechanical Type Fig. 6-2: Inductive proximity Type...

  • Page 47: A/M Switch Adjustment

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual A/M switch adjustment 1) On the right hand bottom of positioner, there is A/M switch (Auto/Manual). A/M Switch allows the positioner to be functioned as by-pass. If the switch is turned clockwise (toward “A”) and it is fasten tightly, then the supply pressure will be transferred to actuator through outport by positioner control.

  • Page 48: Orifice Installment

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Orifice Installment Hunting can be occurred when the actuator’s volume is too small. In the event of hunting, orifice can be installed to prevent it, thereby reducing the flow rate of OUT1 and OUT2 air entering the actuator.

  • Page 49: Optional Sub-Pcb Installment

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Optional Sub-PCB Installment By adding sub-PCB, the positioner can have additional functions. There are 3 types of sub-PCB. Hart Only Ptm Only Ptm+Hart Fig. 7-1: Three types of Sub-PCB When purchasing option sub-PCBs separately, 4 Bolts and 2 supports are supplied together with sub- PCB.
  • Page 50 Smart Positioner YT-3700 / 3750 / 3702 Product Manual Inductive proximity Limit switch type (Only YT-3700 / 3750) Fig. 7-3: Installation of Option PCB on Main PCBs JP1 jumper must be removed, when HART option included sub-PCB is being mounted.

  • Page 51: Maintenance

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Maintenance Supply air If Supply air pressure is not stable or Supply air is not clean, the positioner may not function properly. Air quality and pressure should be checked regularly to see if the air is clean and pressure set is normal.

  • Page 52: Auto Calibration And Pcb Operation

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Auto Calibration and PCB Operation Warning Following process will operate valve and actuator. Make sure to disconnect the Valve from the system prior to the automatic calibration (AutoCal) to prevent any disruption of the process since this operation shall move the Valve and Actuator.

  • Page 53: Button And Function

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Button and function 9.2.2 Positioner has 4 buttons, and they enable to perform various functions. Fig. 9-2 Buttons Function Used to navigate to each menu at the same level or to increase the value of the selected parameter.

  • Page 54: Menu Levels

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Menu levels The basic menu structure consists of the RUN Mode Monitor and the Configuration/Operation. The Run Mode Monitor menu allows you to monitor the values of various variables. The Configuration/Operation menu provides calibration and tuning, manual operation, configuration of I/O port function, configuration and self-test of positioner, configuration of diagnostic function, and basic information of the positioner.

  • Page 55: Run Mode Monitor

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual RUN Mode Monitor The RUN Mode Monitor is displayed on the LCD display when power is provided to the positioner. Pressing the UP/DOWN button scrolls through the various process variables shown in table below. A "30.0%" in the LCD display below indicates that the valve is in the 30% position, and an "AP"...

  • Page 56: Configuration And Operation

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Configuration and Operation The Table below shows the eight Configuration/Operation menus, each submenu, ranges for each parameter, and initial factory settings. The words shown in [ ] for each menu represent the abbreviations of each word displayed when operating the LCD screen.
  • Page 57 Smart Positioner YT-3700 / 3750 / 3702 Product Manual Level 1 Level 2 Range Initial factory setting Linear, Quick Open, Equal Percent, User Set Characterization [CHAR] 5point, User Set 21point [LIN, QO, EQ, U5, U21] User Set Characterization 5p 0 %, 25 %, 50 %, 75 %,...
  • Page 58 Smart Positioner YT-3700 / 3750 / 3702 Product Manual Level 1 Level 2 Range Initial factory setting GOOd, FAIL, FUNC, Process Status [PS] GOOd OUTS, MNTR GOOd, Refer to 9.15 Status Device Status [dS] GOOd and Alarm Code. [CYCL CNT, TVL ACUM,...
  • Page 59 Smart Positioner YT-3700 / 3750 / 3702 Product Manual The Table below identifies the range and initial factory settings of each parameter for Menu Level 2 and Menu Level 3 where the menu hierarchy has been lowered by one level.

  • Page 60: Calibration (Calib)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Calibration (CALIb) The calibration consists of five menus. Acting Type Set manually single or double acting by actuator type [SINGLE/ dOUbLE] Auto Calibration 1 [AUTO 1] Calibration on the zero and end points of the valve...

  • Page 61: Auto Calibration 1 (Auto 1)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Auto Calibration 1 (AUTO 1) 9.6.2 AUTO 1 is used to set only the origin and end points. It does not change the PID and other parameter values that already have been set. This is usually used when the origin and end points of the already calibrated positioner have changed slightly.

  • Page 62: Travel Zero (Tvl Zero) And Travel End (Tvl End)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Travel Zero (TVL ZERO) and Travel end (TVL ENd) 9.6.4 This is a manual adjustment of the zero point or endpoint of the valve after auto calibration. Once you enter the TVL ZERO (or TVL ENd) setting, press the UP/DOWN button to change the zero point (or endpoint) of the valve, and then press the ENTER button to save it.

  • Page 63: Manual Operation (Man Oper)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Manual Operation (MAN OPER) It is used to manually raise or lower the valve stem by operating the UP or DOWN buttons. This can be used to observe the move of valve stem without any external input signals. When engaged, the current input signal to the positioner has no effect on the positioner.

  • Page 64: Manual Operation By Manipulator Value (Man Mv)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Manual Operation by Manipulator Value (MAN MV) 9.7.2 The input to I/P converter is incremented or decremented by the UP and DOWN buttons based on the currently entered I/P input value, which moves the stem of the valve up and down. Once out of the menu by <ESC>, the positioner is controlled again by an input signal.

  • Page 65: Control Parameters (Ctl Parm)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Control Parameters (CTL PARM) Followings are the values changeable at the Control Parameters Mode. 1) Dead Band (dEAdbANd) 2) Forward P parameter (KP UP) and reverse P parameter (KP dN) 3) Forward Integral time parameter (TI UP) and reverse Integral time parameter (TI dN)

  • Page 66: Forward P Parameter (Kp Up) And Reverse P Parameter (Kp Dn)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Forward P parameter (KP UP) and reverse P parameter (KP dN) 9.8.2 The KP parameter is the proportional control constant to the calibration signal to reduce the error between the target position and the current position, the KP UP is applied when the valve moves in the direction of increasing output air pressure, and KP dN is applied when the valve moves in the direction of venting output air pressure.

  • Page 67: Forward D Parameter (Kd Up) And Reverse D Parameter (Kd Dn)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Forward D parameter (Kd UP) and reverse D parameter (Kd dN) 9.8.4 The Kd parameter is a differential value that adds the correction signal due to the rate of error to the existing calibration signal.

  • Page 68: Gap P Parameter (Gp)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual GAP P parameter (GP) 9.8.6 GP is a proportional gain. If the valve position is within the GAP parameter range, a proportion gain created based on KP and GP is applied to valve control.

  • Page 69: Gap D Parameter (Gd)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual GAP D parameter (Gd) 9.8.8 Gd is a differential gain. If the valve position is within the GAP parameter range, a differential gain created based on Kd and Gd is applied to valve control.

  • Page 70: Auto Dead Band Mode (Auto Db)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Auto Dead band Mode (AUTO db) 9.8.9 This function is used to suppress a hunting for valves with high static friction. The initial value is OFF and it shall be set to 0 % to activate the auto dead band automatically. The value is changed to a proper value once this mode is activated.

  • Page 71: Input Configuration (In Cfg)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Input Configuration (IN CFG) Followings are the values changeable at the Input Configuration Mode. 1) Signal Direction (SIG NORM / REVS) 2) Split Range Mode (SPLIT 4.20 / 4.12 / 12.20 / CSt)

  • Page 72: Split Range Mode (Split 4.20 / 4.12 / 12.20 / Cst)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Split Range Mode (SPLIT 4.20 / 4.12 / 12.20 / CSt) 9.9.2 This is used to set the range of the input signal to control the entire stroke of the valve. You can select one of the four input signals that consists of 4-20 mA, 4-12 mA, 12-20 mA, and user settings (Custom, CSt).

  • Page 73: Custom Split Range End (Cst End)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Custom Split Range End (CST ENd) 9.9.4 It is used to set the current corresponding to the endpoint when the valve position of 0 to 100% is controlled by the user-set CUSTOM. For example, if the valve is controlled by 4-18 mA instead of 4-20 mA, CST ENd is 18 mA.

  • Page 74: User Set Characterization 5 Points (User 5P)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual User Set Characterization 5 Points (USER 5P) 9.9.6 A total of 5 target positions are set every 4 mA intervals. When shipped from the factory, the initial positions are P0 (4mA, 0%), P1 (8mA, 25%), P2 (12mA, 50%), P3 (16mA, 75%), and P4 (20mA, 100%).

  • Page 75: User Set Characterization 21 Points (User 21P)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual User Set Characterization 21 Points (USER 21P) 9.9.7 A total of 21 target points can be set every 0.8 mA intervals. When shipped from the factory, the initial P0 (4mA, 0%), P1 (4.8 mA, 5%), P2 (5.6 mA 10%), - - -, P19 (19.2 mA, 95%), and P20 (20 mA, 100%).

  • Page 76: Tight Shut Open (Tshut Op)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Tight Shut Open (TSHUT OP) 9.9.8 It is used to ensure that the valve is fully opened with a large force. When the input signal SP is greater than the value set in the TSHUT OP, all available force is applied to OUT 1 port to tightly open the valve.

  • Page 77: Tight Shut Close (Tshut Cl)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Tight Shut Close (TSHUT CL) 9.9.9 It is used to ensure that the valve is fully closed with a large force. When the input signal SP is smaller than the value set in the TSHUT CL, air pressure is vented through OUT 1 port to tightly close the valve.

  • Page 78: Target Position Ramp Up Rate (Ramp Up) And Target Position Ramp Down Rate (Ramp Dn)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Target Position Ramp Up Rate (RAMP UP) and Target Position Ramp Down Rate (RAMP dN) 9.9.10 It is used to prevent the valve from moving too fast when the process to be controlled is too sensitive to rapid changes in flow or pressure.

  • Page 79: Digital Input Function (Dif Off / Fcl / Fop / Psta / Psto)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual 3 seconds → → → Press <UP> or Press <UP> or <DOWN> button <DOWN> button if the above is not if the above is not displayed. displayed. <UP>/<DOWN> <ESC> <DOWN> →...

  • Page 80: Digital Input Logic (Di Logic Hi / Lo)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Digital Input Logic (dI LOGIC HI / Lo) 9.9.12 It sets the logic that activates digital input to High (HI) or Low (Lo). The initial factory setting is HI, which means that when 10 - 28 V DC voltage is applied, it is recognized as HI state. If Lo is set, when 0 – 5V is applied or the electric power is disconnected, it is recognized as Lo state.

  • Page 81: Output Configuration (Out Cfg)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Output Configuration (OUT CFG) 9.10 Followings are the values changeable at the Output Configuration Mode. 1) Position Transmitter Direction (PTM NORM / REVS) 2) Position Transmitter Zero / End (PTM ZERO / ENd)

  • Page 82: Position Transmitter Zero / End (Ptm Zero / End)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Position Transmitter Zero / End (PTM ZERO / ENd) 9.10.2 ZERO adjusts the zero point of the position transmitter (4mA feedback), and ENd adjusts the end point of the transmitter (20mA feedback). This is used when the analog output signal needs to be feedbacked differently than the actual position of the valve, or to be adjusted a little.

  • Page 83: Hart Feedback Direction (Ht Norm / Revs)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual <UP>/<DOWN> 3 seconds → → → Press <UP> or Adjusting zero The actuator <DOWN> button point. moves to zero if the above is not Press <UP> or point. displayed. <DOWN> button if the above is not displayed.

  • Page 84: Back Calculation (Backcal Off / On)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Back Calculation (bACKCAL oFF / on) 9.10.4 This function recalculates the output "RUN AP" value changed by the flow characteristics setting mode to display it linearly proportional to actual input current. For example, if the flow characteristic mode is set from "LIN"...

  • Page 85: Digital Output Function (Dof Off

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Digital Output Function (dOF OFF / …) 9.10.5 This is used to output a specific alarm through the digital output port when triggered. Any of the alarms below can be configured to activate digital output. Assign any alarm to one of four NE107 signals to activate a digital output even when several alarms are triggered.

  • Page 86: Digital Output Logic (Do Logic Hi / Lo)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Digital Output Logic (dO LOGIC HI / Lo) 9.10.6 This logic is used to determines the state of Digital Output Switch by High (HI) or Low (Lo) when an event or alarm in synchronization with specific Digital Output switch is triggered. The initial factory setting is HI, which means that when 5 ~ 28 V DC voltage is applied, the output current will be in the range of 2.2 to 14 mA flowing through the digital output switch.

  • Page 87: Analog Output Function (Aof Off

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Analog Output Function (AOF OFF / …) 9.10.7 This is used to output a specific alarm(NAMUR NE43) through the analog output port when triggered. If one of the alarms below occurs, it can be configured so that the analog output is activated. Assign any alarm to one of the four NE107 signals to activate an analog output signal required for any of the listed alarms.

  • Page 88: Analog Output Logic (Ao Logic Lo / Hi)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual 3 seconds → → → Press <UP> or Press <UP> or <DOWN> button <DOWN> button if the above is not if the above is not displayed. displayed. <UP>/<DOWN> <ESC> 3 times →...

  • Page 89: Device Configuration (Dev Cfg)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Device Configuration (dEV CFG) 9.11 Followings are the values changeable at the dEV CFG Mode. 1) Action Setting (ACT REVS / dIR) 2) Linear Interpolation (ITP oFF / on) 3) Lock of Parameters (Write Protect, W UNLOCK / LOCK)

  • Page 90: Linear Interpolation (Itp Off / On)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Linear Interpolation (ITP oFF / on) 9.11.2 ITP is used to compensate the linear motion of the actuator into rotary motion of the feedback lever. Following Auto Calibration, the ITP mode is set automatically to “on” when the angle range of the feedback lever is greater than 20 °, but it is set to oFF when this angle is less than 20 °...

  • Page 91: Actual Position View Mode (View Mode, Vi Norm / Revs)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Actual Position View Mode (View Mode, VI NORM / REVS) 9.11.4 This function is used to set the "RUN AP" value on the LCD to be displayed as direct (NORM) or reversely (REVS) as the actual position of the valve.

  • Page 92: Factory Reset (Default Off / On)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Factory Reset (dEFAULT oFF / on) 9.11.6 This function initializes all parameters stored in the positioner to initial factory setting. In the dEFAULT mode, press the Enter button to enables ON/OFF setting and then pressing Enter button for approximately 3 seconds changes the dEFAULT mode from oFF to “on".

  • Page 93: Positioner Self-Test (Selftest)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Positioner Self-Test (SELFTEST) 9.11.7 This function is used to diagnose the operation of the memory (RAM or NVM) inside the positioner. If no error is found during SELFTEST, the SELFTEST menu is displayed after FINISH is displayed, and if abnormalities are detected, the message "SEt / NVMW"...

  • Page 94: Diagnosis Mode (Diagnd)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Diagnosis Mode (dIAGNd) 9.12 Followings are the values changeable at the dIAGNO Mode. 1) Default Alarm Settings 2) Process Status (PS) 3) Device Status (dS) 4) View Monitoring Counts (VI CNTS)
  • Page 95 Smart Positioner YT-3700 / 3750 / 3702 Product Manual Resettable manually Status / Alarm Default setting Default NE107 signal when alarm occurred? Cycle Count Limit Disable Maintenance Required Travel Accumulate Limit Disable Maintenance Required Operating Count Limit Disable Maintenance Required...

  • Page 96: Process Status (Ps)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Process Status (PS) 9.12.2 The status of the current process is indicated as GOOd, NE107 symbol, and abbreviation for alarm. NE107 symbols Function Abbreviation None PS GOOd Good PS FAIL Failure...

  • Page 97: Device Status (Ds)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual <ESC> 3 seconds 2 times → → → Press <UP> or Press <UP> or <DOWN> button <DOWN> button if the above is not if the above is not displayed. displayed. Device Status (dS) 9.12.3...
  • Page 98 Smart Positioner YT-3700 / 3750 / 3702 Product Manual Device Alarm Abbreviation Loop Operation Active LOPA Auto Calibration Running CALR PST Running PSTR Diagnosis Running dIGR Position Sensor High Limit PSNH Position Sensor Low Limit PSNL Critical NVM Fail NVMF...

  • Page 99: View Monitoring Counts (Vi Cnts)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual View Monitoring Counts (VI CNTS) 9.12.4 It is used to just view the accumulated data information for valve movement up to now. Counter Name Abbreviation [unit] Function The accumulated number of times the valve has changed its...

  • Page 100: Diagnostic Limit Configuration (Limt Cfg)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Diagnostic Limit Configuration (LIMT CFG) 9.12.5 This configuration is used to set the upper or lower limit that is generated by the Travel High Limit Alarm, Travel Low Limit Alarm, Temperature High Limit Alarm, Temperature Low Limit Alarm, and Deviation Timeout Alarm.

  • Page 101: Reset Alarm Status (Rst Alrm Off / On)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Reset Alarm Status (RST ALRM oFF / on) 9.12.6 The alarm is automatically released when the cause of the alarm is removed. For example, if a high- temperature alarm is created, the alarm is automatically released when internal temperature drops below the Temperature High Limit.

  • Page 102: View Event Log (Evt Log)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual View Event Log (EVT LOG) 9.12.7 This is used to show the 20 most recent events that occurred in operation. Record 0 is the most recent of the 20 events and Record 19 is the oldest event. The event detail shows the time when the event occurred (EVT TIME) as well as the content of the event (EVT INFO).

  • Page 103: Partial Stroke Test Record (View Pst Result Record, Pst Rslt)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Partial Stroke Test Record (View PST Result Record, PST RSLT) 9.12.8 This is used to show information about the 10 most recent Partial Stroke Tests performed. Record 1 is the most recent of the 10 PST histories, and Record 10 is the result of the oldest PST operation. The response time (RT), response code (RC), and dead time (dT) after the PST operation are also shown.

  • Page 104: Pst Configuration (Pst Cfg)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual PST Configuration (PST CFG) 9.12.9 Parameter names Abbreviation [unit] Description Sets time interval PST is triggered. Initial factory setting PST Interval INTERVAL [days] is 365 days. Sets the start position to launch PST. Initial factory setting...

  • Page 105: Run Pst (Pst Now)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual 3 seconds → → → Press <UP> or Press <UP> or <DOWN> button <DOWN> button if the above is not if the above is not displayed. displayed. <UP>/<DOWN> <ESC> 4 times →...

  • Page 106: Periodic Pst Test (Pst Schedule, Pst Schd Off / On)

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual 9.12.11 Periodic PST Test (PST Schedule, PST SCHd oFF / on) When PST SCHd is set to ON, the Partial Stroke Test is executed regularly under the conditions set in 9.12.9 above. For example, PST is performed every 365 days when PST Interval is set to 365 days.
  • Page 107 Smart Positioner YT-3700 / 3750 / 3702 Product Manual LCD display Description YT3700L Model Name Software Version [SOFT VER] “1.0.00” Software Input date : “2022-01(JA)-31” 1.0.00 (January JA, February FB, March MR, April AR, May MY, June JN, July JL,...

  • Page 108: Error Codes During Automatic Calibration

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Error codes during automatic calibration 9.14 There may be an error during the automatic calibration in case of irregularity. ➢ Error code : indicated if the positioner is out of control, malfunctions or becomes imprecise.

  • Page 109: Status And Alarm Code

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Status and Alarm Code 9.15 The status and alarm codes can be displayed on the LCD screen as required. Refer to the table below to check the status and alarm codes, and then take the appropriate action. (See 9.5...
  • Page 110 Smart Positioner YT-3700 / 3750 / 3702 Product Manual Alarm Abbreviation Status / Alarm name Description or proposed actions Code TVLH Travel High Limit It is active when the travel exceeds Travel Hi Limit. TVLL Travel Low Limit It is active when the travel falls below Travel Lo Limit.
  • Page 111 Smart Positioner YT-3700 / 3750 / 3702 Product Manual Alarm Abbreviation Status / Alarm name Description or proposed actions Code It is active when auto-calibration has failed. Retry auto- Auto Calibration calibration after checking if there is no problem with...

  • Page 112: Main Software Map

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Main Software Map Ver. 1.26...

  • Page 113: Intrinsically Installation Drawing

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual Intrinsically installation drawing FM certification 11.1 Ver. 1.26...

  • Page 114: Csa Certification

    Smart Positioner YT-3700 / 3750 / 3702 Product Manual CSA certification 11.2 Ver. 1.26...
  • Page 115 Product Manual Manufacturer: Rotork YTC Limited Address: 81, Hwanggeum-ro, 89 Beon-gil, Yangchon-eup, Gimpo-si, Gyeonggi-do, South Korea Postal code: 10048 Tel: +82-31-986-8545 Fax: +82-70-4170-4927 Email: ytc.sales@rotork.com Homepage : http://www.ytc.co.kr Issued : 2022-12-08 Copyright © Rotork YTC Limited. All Rights Reserved. Ver. 1.26...

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