rotork YT-2500 Series Product Manual
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rotork YT-2500 Series Product Manual

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SMART POSITIONER
PRODUCT MANUAL
YT-2500 / 2550 / 2501 SERIES
Rotork YTC Limited
VERSION 1.34

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Summary of Contents for rotork YT-2500 Series

  • Page 1 SMART POSITIONER PRODUCT MANUAL YT-2500 / 2550 / 2501 SERIES Rotork YTC Limited VERSION 1.34...

  • Page 2: Table Of Contents

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Contents Introduction ..............................5 General Information for the users ......................5 Manufacturer Warranty .........................5 Explosion Proof Warning (Only for Intrinsic safety type positioners) ............6 Product Description ...........................7 General ..............................7 Main Features and Functions .......................7 Label Description ..........................8 Product Code .............................
  • Page 3 Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Safety ..............................34 Connection ............................34 Ground ............................... 36 Adjustments ............................. 37 Limit Switch Adjustment ........................37 Variable Orifice Adjustment ....................... 38 Optional Sub-PCB Installment ....................... 39 Installation steps ..........................39 Maintenance .............................
  • Page 4 Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual 9.8.6 Split Range Mode (SPLIT) ......................54 View Mode (VIEW) ..........................55 Error and Warning Code ......................... 57 10.1 Error code which is displayed during Auto calibration ............... 57 10.2 Error code which is displayed while using the product ..............

  • Page 5: 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 6: Explosion Proof Warning (Only For Intrinsic Safety Type Positioners)

    ➢ For detailed warranty information, please contact the corresponding local Rotork YTC Limited office or main office in South Korea. Explosion Proof Warning (Only for Intrinsic safety type positioners) Please ensure the unit is being used and installed in conformity with local, regional, and national explosion proof within the proper safety barrier environment.

  • Page 7: Product Description

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Product Description General YT-2500 / 2550 / 2501 series Smart Valve Positioner accurately controls valve stroke in response to an input signal of 4~20mA from the controller. Built-in micro-processor optimizes the positioner’s performance and provides unique functions such as Auto-Calibration, PD Control, and HART Protocol Communications.

  • Page 8: Label Description

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Label Description • MODEL : Indicates the model number and additional options. • EXPLOSION PROOF : Indicates certified explosion proof grade. • INGRESS PROTECTION : Indicates enclosure protection grade. • INPUT SIGNAL : Indicates input signal range.
  • Page 9 Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Fig. L-3: YT-2500 Intrinsic safety type (KCs, NEPSI, ATEX, IECEx) Fig. L-4: YT-2500 Intrinsic safety type (TRCU) Fig. L-5: YT-2500 Intrinsic safety type (CCC) Ver. 1.34...
  • Page 10 Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Fig. L-6: YT-2550 Non-explosion proof Fig. L-7: YT-2550 Intrinsic safety type (KCs, ATEX, IECEx) Fig. L-8: YT-2550 Intrinsic safety type (CCC) Fig. L-9: YT-2501 Non-explosion proof Ver. 1.34...
  • Page 11 Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Fig. L-10: YT-2501 Intrinsic safety type (KCs, ATEX, IECEx) Fig. L-11: YT-2501 Intrinsic safety type (CCC) Ver. 1.34...

  • Page 12: Product Code

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Product Code YT-2500 / 2550 series follows suffix symbols as follows. 2.4.1 YT-2500 / 2550 1 Linear Motion Type Rotary Single Acting type Double Non-Explosion Intrinsic safety : YT-2500 → KCs, NEPSI, ATEX, IECEx YT-2550 →...

  • Page 13: Yt-2501 Series Follows Suffix Symbols As Follows

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Fail Freeze Fail Option Fail Safe Operating temp. of inductive proximity limit switch is from -25°C~ . YT-2501 series follows suffix symbols as follows. 2.4.2 YT-2501 1 Linear Motion Type Rotary Single Acting type...

  • Page 14: Product Specification

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Product Specification YT-2500 / 2550 Specification 2.5.1 Model YT-2500 YT-2550 Housing Material Aluminum Stainless steel 316 Motion Type Linear Rotary Linear Rotary Acting Type Single / Double Input Signal 4~20mA DC Minimum Current Signal 3.5mA(Standard), 3.8mA(HART Included) Supply Pressure...
  • Page 15 Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Tested under ambient temperature of 20°C, absolute pressure of 760mmHg, and humidity of 65% Please contact Rotork YTC Limited for detailed testing specification. Ver. 1.34...

  • Page 16: Yt-2501 Specification

    0.6 kg (1.2 lb) 1.0 kg (2.1 lb) Cable(5M) 0.6 kg (1.3 lb) Painting Polyester Powder Coating Tested under ambient temperature of 20°C, absolute pressure of 760mmHg, and humidity of 65% Please contact Rotork YTC Limited for detailed testing specification. Ver. 1.34...

  • Page 17: Certifications

    Smart Positioner YT-2500 / 2550 / 2501 Series 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 T5/T6, Ex iaD IIIC T100°C/T85°C Certification No. : 11-KB2BO-0163X(YT-2500)

  • Page 18: Parts And Assembly

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Parts and Assembly Fig. 2-1: YT-2500 / 2550 series exploded view 1. Base Cover 6. Potentiometer 2. Option PCB 7. Main shaft 3. Main PCB 8. Base body 4. Pressure Gauge 9.
  • Page 19 Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Positioner Rotary Remote Sensor Linear Remote Sensor Fig. 2-2: YT-2501 exploded view 1. Base cover of Remote sensor 10. Base cover of Positioner 2. Terminal of Remote sensor 11. PCB of Positioner 3.

  • Page 20: Product Dimension

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Product Dimension YT-2500 2.8.1 Fig. 2-3: YT-2500L Fig. 2-4: YT-2500R (Fork Lever Type) Fig. 2-5: YT-2500R (Namur Type) Fig. 2-6: YT-2500R (L/S Option) Ver. 1.34...
  • Page 21 Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual YT-2550 2.8.2 Fig. 2-7: YT-2550L Fig. 2-8: YT-2550R YT-2501 2.8.3 Fig. 2-10: Rotary Remote Sensor Fig. 2-9: Linear Remote Sensor Fig. 2-11: YT-2501 Positioner Ver. 1.34...

  • Page 22: Installation

    Smart Positioner YT-2500 / 2550 / 2501 Series 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 23: Linear Positioner Installation

    Smart Positioner YT-2500 / 2550 / 2501 Series 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-2500L / 2550L installation example Fig.

  • Page 24: Linear Positioner Installation Steps

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Linear positioner Installation Steps 3.3.2 1) Assemble the positioner with the bracket made in previous step by fastening the bolts. The bolt size is M8 x 1.25P. Fig. 3-4: Attaching to bracket Fig.
  • Page 25 Smart Positioner YT-2500 / 2550 / 2501 Series 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 26 Fig. 3-9: Feedback lever and location of the connection bar ※ The effective linear lever angle of YT-2500 series is 30 degree. 8) After installing the positioner, operate the valve from 0% to 100% stroke by using direct air to the actuator.

  • Page 27: Rotary Positioner Installation

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual 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. Before proceeding with the installation, ensure following components are available.

  • Page 28: Rotary Bracket Information (Only Yt-2500 / 2550)

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Rotary Bracket information (Only YT-2500 / 2550) 3.4.3 The rotary bracket set (included with the positioner) contains two components. The bracket is designed to fit onto the actuator with 20mm, 30mm and 50mm stem height (H) according to VDI/VDE 3845 standard.

  • Page 29: Rotary Positioner Installation Steps

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual 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. 2) Attached the brackets onto the actuator. It is recommended to use spring washer so the bolts will not be loosen from vibration.
  • Page 30 Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual 6) Attach the positioner to the bracket. <Only fork lever type of YT-2500 / 2550: Fix the clamping pin (5mm Dia.) into the fork lever slot and insert center pin (2mm Dia.) of the main shaft of the positioner into the hole of center of the fork lever.

  • Page 31: Connection - Air

    ➢ Always recommended to use air filter regulator (i.e. YT-200 series). ➢ Rotork YTC Limited has not tested positioner’s operation with any other gases other than clean air. Please contact Rotork YTC Limited for any questions. Supply Pressure Condition ➢...

  • Page 32: Connection - Piping With Actuator

    Smart Positioner YT-2500 / 2550 / 2501 Series 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. Fig.

  • Page 33: Double Acting Actuator

    Smart Positioner YT-2500 / 2550 / 2501 Series 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-2500L / 2550L) Fig. 4-6: Double acting rotary actuator (YT-2500R / 2550R) Fig.

  • Page 34: Connection - Power

    Smart Positioner YT-2500 / 2550 / 2501 Series 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 35 Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Fig. 5-2: Mechanical Limit Switch Terminal (Only YT-2500 / 2550) Fig. 5-3: Inductive Proximity Limit Switch Terminal (Only YT-2500 / 2550) Ver. 1.34...

  • Page 36: Ground

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Fig. 5-4: Remote sensor and cables (Only YT-2501) Ground 1) Ground must be done before operating the positioner. 2) Open base cover and there is an internal ground “F.G” on the left hand. An external ground bolt is located next to the conduit entry.

  • Page 37: Adjustments

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Adjustments Limit Switch Adjustment YT-2500 / 2550 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.

  • Page 38: Variable Orifice Adjustment

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Variable Orifice Adjustment Hunting can be occurred when the actuator’s volume is too small. In order to prevent hunting, orifice can be adjusted. By adjusting the orifice, the flow rate of the supply pressure to actuator can be adjusted.

  • Page 39: Optional Sub-Pcb Installment

    Smart Positioner YT-2500 / 2550 / 2501 Series 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: Types of Sub-PCB When purchasing option sub-PCBs separately, 4 Bolts and 2 supports (3 at Limit switch internal option) are supplied together with sub-PCB.

  • Page 40: Maintenance

    Smart Positioner YT-2500 / 2550 / 2501 Series 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. Seals Once a year, it is recommend to check if there are any damaged parts of the positioner.

  • Page 41: Auto Calibration And Pcb Operation

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Auto Calibration and PCB Operation Warning Following process will operate valve and actuator. Before proceeding with any Auto Calibration, please separate valve from the entire system by using bypass valve, so Auto Calibration will not affect entire valve process.

  • Page 42: Run Mode (Run)

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Run Mode (RUN) After power connection to the positioner, Run Mode will be appeared on positioner’s LCD screen in about 4 seconds. “RUN” indicates that the positioner adjusts the valve stroke according to the receiving signal. There are six types of display message in “RUN”...

  • Page 43: Auto1 Calibration (Auto1)

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual AUTO1 Calibration (AUTO1) 9.4.1 AUTO1 changes only zero and end points; however other parameters(P, D etc.) will not be adjusted. It is recommended to perform AUTO1 when the positioner has been set by the valve manufacturer already, and the field user wants to re-calibrate the positioner.

  • Page 44: Manual Mode (Manual)

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Manual Mode (MANUAL) Manual mode is used to maneuver valve stem manually. In Manual mode, the positioner does not control the valve by the signal received from outside, but it could be controlled to move up and down by pressing <UP>...

  • Page 45: Dead-Zone (Deadzone, %)

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Dead-Zone (dEAdZONE, %) 9.6.1 Dead-Zone indicates the percentage of error allowance. When AUTO 2 or AUTO 3 calibration are done, this value would be set automatically and moderately. But if hunting still occur after AUTO 2 or AUTO 3 calibration for the reason such as high level of packing friction, increasing the value of Dead-Zone can stable the valve operation.

  • Page 46: D1 Value (Kd1)

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual D1 Value (Kd1) 9.6.3 D value indicates the derivative value of the compensation signal based on the percentage of error allowance. As the value increase, it is more likely to have hunting. As the value decreases, it can have poor linearity or dynamic characteristic.

  • Page 47: Period T (Period T)

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Period T (PERIOd T) 9.6.7 Period T indicates the positioner’s internal control time interval. As default, positioner will check current position respective to current input signal in every 100 msec. Auto DZ (AUTO dZ) 9.6.8 After the auto calibration, the positioner will create deadzone automatically.

  • Page 48: Hand Calibration Mode (Hand Cal)

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Hand Calibration Mode (HAND CAL) Hand Calibration mode is used when zero-point and end-point require re-adjustment to use partial range of total strokes after Auto Calibration has been performed. Below are the list of features which could be set from Hand CAL mode. 1) Zero-Point (PV_ZERO) and End-Point (PV_END) for Valves 2) Zero-Point (TR_ZERO) and End-Point (TR_END) for Transmitter 3) Normal / Reverse Feedback Signal (TR NORM / REVS)

  • Page 49: Zero-Point (Tr_Zero) And End-Point (Tr_End) For Transmitter

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Zero-Point (TR_ZERO) and End-Point (TR_END) for Transmitter 9.7.2 TR_ZERO adjusts the zero point of the transmitter (4mA feedback), and TR_END adjusts the end point of the transmitter (20mA feedback). This is used when output signal becomes unstable and requires re-adjustment or when feedback output signal and actual stroke need to be used differently.

  • Page 50: Normal / Reverse Feedback Signal (Tr Norm / Revs)

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Normal / Reverse Feedback Signal (TR NORM / REVS) 9.7.3 The feedback signal from the positioner can be changed to normal or reverse. <ENTER> <ENTER> <DOWN> → → → Press <UP> or <DOWN>...

  • Page 51: Acting Adjustment (Act Ra / Da)

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Acting Adjustment (ACT RA / dA) 9.8.1 RA & DA are automatically set by performing “AUTO 2” from Auto Calibration. However, this function is used when the user wants to change RA & DA. The positioner can be set as Direct Action (DA) or Reverse Action (RA).

  • Page 52: User Defining Flow Characteristics (User Set)

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual User defining flow Characteristics (USER SET) 9.8.3 User can make its own flow characteristic curve with this mode. USER SET can be set in two ways, 5 points and 18 points. User can choose whichever is more suitable for their application. 1) 5 points setting can be set with 4mA intervals.

  • Page 53: Tight Shut Open (Tshut Op)

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual 2) 18 points setting can be set with 1mA intervals. The initial positions are P0(4mA=0%), P1(5mA=6.25%), P2(6mA=12.5%), … P16(20mA=100%) and P17(21mA=106.25%) but user can change the % values to different values. User can change all 18 points or only change partially and exit the menu by pressing <ESC>...

  • Page 54: Tight Shut Close (Tshut Cl)

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Tight Shut Close (TSHUT CL) 9.8.5 Tight shut close shows the current value in percentage (%). Input current of 4mA is 0%, 20mA is 100%. If temporary Tight shut close value (≤100%) is set and input current value is below the set % value, the valve’s position is immediately moved to 0%.

  • Page 55: View Mode (View)

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual View Mode (VIEW) Displays various information of the positioner. <ENTER> <ENTER> <DOWN> 3 seconds → → → Press <UP> or <DOWN> button if the above is not displayed. <DOWN> <DOWN> <DOWN>...
  • Page 56 Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual ITEM Description 1’st row→FF: Fail Freeze / FS: Fail Safe. FF / FS 2’nd row→Positioner model. YT-2500L 1’st row→version number of firmware. 1.6.03 2’nd row→VERSION: Main software version / VERSION / 2020DC31 2020-12(DC)-31: loading date of software.

  • Page 57: Error And Warning Code

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Error and Warning Code Error or Warning code occur if there is a problem during Auto calibration or using the product. ➢ Error code : These are indicated if the positioner cannot be controlled, malfunctions or becomes imprecise.

  • Page 58: Error Code Which Is Displayed While Using The Product

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual ➢ Indicated when the feedback lever’s angle used is excessively small ➢ Re-install the positioner by during auto calibration. moving it towards the actuator RNG ERR ➢ When this error is detected, auto stem so that the angle use of the calibration is aborted and this feedback lever becomes larger.

  • Page 59: Warning Code Which Can Be Checked From View Mode

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual ➢ Accumulated I value is I max or min’s limit. ➢ Degree of precision is low. ➢ Re-perform auto-calibration. ➢ Indicated if valve’s friction is ➢ Check air regulator’s set extremely high or set pressure of air pressure and re-adjust to regulator has been changed.

  • Page 60: Main Software Map

    Smart Positioner YT-2500 / 2550 / 2501 Series Product Manual Main Software Map Ver. 1.34...
  • Page 61 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 : 2021-03-17 Copyright © Rotork YTC Limited. All Rights Reserved. Ver. 1.34...

This manual is also suitable for:

Yt-2550 seriesYt-2501 seriesYt-2500Yt-2550Yt-2501

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