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YT-3400/3450 series

2. Product Description

2.1

General

YT-3400/3450 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, PID

Control, Alarms, and HART Protocol Communications.

2.2

Main Features and Functions



LCD display enables users to monitor the positioner status.



Positioner operates normally during sudden changes in supply pressure and / or high

vibration environment.



The method of Auto Calibration is very simple.



Low air consumption level and low voltage use (8.5 V) yield to lower plant operating

costs. The YT-3400/3450 is compatible with most of controllers.



Variable orifice can be used to minimize the hunting occurrence and optimize operating

conditions.



Valve system becomes more stable by outputting analog feedback signal.



Different valve characteristics can be adjusted

– Linear, Quick Open, Equal Percentage,

and Custom which user can make 16 points characterizations.



Tight Shut

– Close and Shut - Open can be set.



PID parameters can be adjusted in the field without any additional communicator.



A/M switch can be used to direct supply air to the actuator or to manually operate the

positioner or valve without any signal.



Split range 4-12mA or 12-20mA can be set.



Operating temperature is -40 ~ 85

℃ (Please check certified explosion proof

temperature)



Hand calibration function can set Zero and Span values.



It has IP66 protection grade.



Epoxy polyester powder coating resists the corrosion process. (YT-3400 series only)



Maintenance of the positioner is easy because of modularized inner structure.

Содержание YT-3400 SERIES

Страница 1: ...SMART POSITIONER PRODUCT MANUAL YT 3400 3450 SERIES VERSION 1 06 ...

Страница 2: ...ever Type 13 2 8 3 YT 3400 3450R Namur Type 14 3 Installation 15 3 1 Safety 15 3 2 Tools for installation 15 3 3 YT 3400 3450L Installation 15 3 3 1 Installation Steps 16 3 4 YT 3400 3450R Installation 19 3 4 1 Bracket Information 20 3 4 2 Installation Steps 21 4 Connection Piping 23 4 1 Safety 23 4 2 Supply Pressure Condition 23 4 3 Piping Condition 23 4 4 Connection Piping with actuator 24 4 4 1...

Страница 3: ... KF Value 35 7 7 Hand Calibration Mode HAND CAL 36 7 7 1 Zero Point PV_ZERO and End Point PV_END for Valves 36 7 7 2 Zero Point TR_ZERO and End Point TR_END for Transmitter 37 7 7 3 Normal Reverse Feedback Signal TR_NORM REV 37 7 7 4 Normal Reverse HART Signal HT_NORM REVS 38 7 8 Valve Mode VALVE 39 7 8 1 Acting Adjustment ACT RA dA 39 7 8 2 Characteristic Adjustment CHAR 40 7 8 3 User Characteris...

Страница 4: ...9 3 1 START PO 45 7 9 3 2 TARGET 1 46 7 9 3 3 TARGET 2 46 7 9 3 4 INTERVAL 46 7 9 3 5 TOL 47 7 9 3 6 LIMIT TM 47 7 9 3 7 LATENCY 47 7 9 4 PST RSLT 48 7 10 View Mode VIEW 49 8 Error and Warning Code 51 8 1 Error Code 51 8 2 Warning Code 52 9 Main Software Map 53 ...

Страница 5: ...impo si South Korea 1 2 Manufacturer Warranty For the safety it is important to follow the instructions in the manual Manufacturer will not be responsible for any damages caused by user s negligence Manufacturer will not be responsible for any damages or accidents as a result of any alteration or modification of the product and its parts If any alteration or modifications are necessary please cont...

Страница 6: ...en opening product s cover When opening the cover ensure that there is no power remaining in any electrical parts nearby YT 3400 3450 series have 2 ports for power connection Explosion proof type wires and packing should be used Blind plug is required when any port is not being used Cable rug with surface area of more than 0 195mm2 with M4 spring washer should be used to connect the power For exte...

Страница 7: ...of controllers Variable orifice can be used to minimize the hunting occurrence and optimize operating conditions Valve system becomes more stable by outputting analog feedback signal Different valve characteristics can be adjusted Linear Quick Open Equal Percentage and Custom which user can make 16 points characterizations Tight Shut Close and Shut Open can be set PID parameters can be adjusted in...

Страница 8: ...tes unique serial number Fig 4 YT 3400 3450 Stainless steel plate Label D Model Indicates the model number of the positioner E Supply Indicates the supply pressure range F Amb Temp Indicates the allowable ambient temperature G Input Signal Indicates input signal range H Protection of Enclosure Indicates protection grade I Explosion Proof Indicates certified explosion proof grade ...

Страница 9: ...b IIC T5 T6 Ex tb IIIC T100 T85 4 Feedback Lever Linear 1 2 3 4 10 40 mm 20 70 mm 50 100 mm 100 150 mm Rotary 1 2 3 4 5 M6 x 34L M6 x 63L M8 x 34L M8 x 63L Namur Standard 5 Connection Type 1 2 PT 1 4 NPT 1 4 6 Communication 0 2 None HART Communication 7 Option 0 1 2 3 None Position Transmitter Limit Switch Position Transmitter and Limit Switch 8 Operating Temp S L 30 85 30 85 Limit switch DC 24V a...

Страница 10: ... 4 176 Linearity 0 5 F S Hysteresis 0 5 F S Sensitivity 0 2 F S Repeatability 0 3 F S Flow Capacity 70 LPM Sup 0 14 MPa Air Consumption 0 01 LPM Sup 0 14 MPa idle Output Characteristic Linear Quick Open EQ User Set 16 point Vibration No Resonance upto 100Hz 6G Humidity 5 95 RH 40 Communication Option HART Communication Feedback Signal Option 4 20mA DC 10 30V Material Aluminum YT 3400 Stainless ste...

Страница 11: ... T85 T100 Certification No IECEx EPS 11 0002X Ambient temperature 20 70 T6 T85 20 80 T5 T100 CSA Type Explosion proof construction for internal pressure Rating Ex db IIC T5 or T6 Class I Zone 1 AEx db IIC T5 or T6 Class II Division 1 Groups E F and G Ex tb IIIC T85 T100 AEx tb IIIC T85 T100 Certification No 2541710 Ambient temperature 20 to 70 T6 20 to 80 T5 FM Type Explosion proof construction fo...

Страница 12: ... Terminal PCB 4 Main PCB 9 Terminal Cover 5 Feedback Lever 10 Manifold Fig 6 Location of drain plug according to orientation of positioner s mounting YT 3400 3450 series have two drain ports to be used for internal condensation Please use larger drain plug for the condensation and block other remaining port with blind plug 1 2 3 10 4 5 6 7 8 9 Drain Plug ...

Страница 13: ...13 YT 3400 3450 series 2 8 Product Dimension 2 8 1 Fig 7 YT 3400L Fig 8 YT 3450L 2 8 2 Fig 9 YT 3400R Fork lever type Fig 10 YT 3450R Fork lever type ...

Страница 14: ...14 YT 3400 3450 series 2 8 3 Fig 11 YT 3400R Namur type Fig 12 YT 3450R Namur type ...

Страница 15: ...applicable FM approved product 3 2 Tools for installation Hexagonal wrench Screw drivers Spanners for hexagonal head bolts 3 3 YT 3400 3450L Installation YT 3400 3450L should be installed on linear motion valves such as globe or gate type which uses spring return type diaphragm or piston actuators Before proceeding with the installation ensure following components are available Postioner main body...

Страница 16: ... operation 2 Assemble the positioner with the bracket made in previous step by fastening the bolts Please refer to the backside of the positioner for size of the bolts The standard bolt size is M8 x 1 25P Please contact Young Tech Co Ltd for other bolt sizes Fig 14 YT 3400 3450L with bracket Fig 15 Attaching bracket to actuator yoke 3 Attach the positioner with bracket to the actuator yoke DO NOT ...

Страница 17: ...lve stroke If it is not vertical adjust the bracket or the connection link bar to make vertical Improper installation may cause poor linearity and may create unnecessary hunting during the operation Fig 17 Feedback lever and valve stem 8 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 whi...

Страница 18: ...hould not touch the lever stopper which is located on the backside of the positioner If the feedback lever touches the stopper the positioner should be installed further away from the yoke Fig 19 Feedback lever should not touch lever stopper on 0 100 valve stroke 10 After the installation tighten all of the bolts on the bracket the feedback lever and the connection bar ...

Страница 19: ...its stem rotates 90 degrees Before proceeding with the installation ensure following components are available Positioner main body Fork lever and lever spring Standard rotary bracket set 2 piece included with the positioner 4 pcs x hexagonal headed bolts M8 x 1 25P 4 pcs x M8 plate washers 4 pcs x wrench headed bolts M6 x 1P 4 pcs x M6 nuts 4 pcs x M6 spring washers Fig 20 Fork lever type Fig 21 N...

Страница 20: ...pe The bracket is designed to fit onto the actuator with 20mm 30mm and 50mm stem height H according to VDI VDE 3845 standard Please refer to below table how to adjust the height of the bracket Actuator stem height H Markings of bolt holes A L B L A R B R 20mm H 20 H 20 30 H 20 H 20 30 30mm H 30 H 20 30 H 30 H 20 30 50mm H 50 H 50 H 50 H 50 Fig 22 Brackets of rotary type positioner ...

Страница 21: ...m s rotation direction clockwise or counter clockwise Installation angle of the fork lever should be 45 degrees in relation to the linear shaft For NAMUR shaft installation the angle does not matter Fig 23 Counter clockwise and clockwise rotation 5 After setting fork lever position assemble lock nuts which are located on the bottom of the fork lever Ensure to set the height of the upper fork lever...

Страница 22: ...rability due to unnecessary forces on the main shaft Fig 25 Main shaft center alignment fork lever Fig 26 Positioner with an actuator 7 Tighten the positioner and the bracket with hexagon headed bolts and plate washer after checking the positioner s position ...

Страница 23: ...r Positioner s inner filter can only filter 5 micron or larger Avoid oil Comply with ANSI ISA 57 3 1975 R1981 or ISA S7 3 1975 R1981 Supply pressure range is 1 4 7 kgf cm2 140 700 kPA Set air filter regulator s pressure level 10 higher than actuator s spring range pressure 4 3 Piping Condition Ensure inside of pipe is clean of obstructions Do not use pipeline that is squeezed or shows any type of ...

Страница 24: ...e port from actuator when using single acting type of spring return actuator Fig 27 Single acting linear actuator Fig 28 Single acting rotary actuator 4 4 2 Double acting actuator 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 29 Double acting linear actuator Fig 30 Double acting rotary actuator ...

Страница 25: ...r any other external impact Positioner with PTM options must be supplied 9 28V DC separately For L S option separate 12 24V DC must be supplied For both options it should not exceed 30V DC Positioner should be grounded Please use twisted cable with conductor section are 1 25mm2 and that is suitable for 600V complying with the conductor table of NEC Article 310 The outer diameter of the cable shoul...

Страница 26: ...dy Please use appropriate union or conduit by considering the operating condition Insert cables into the entry with using proper flameproof type packing union or conduit 3 Input signal terminals are on the top left side of the terminal block of the terminal plate Insert signal cables with rug into the conduit entry G1 2 or PF1 2 and secure them with and terminals on the block Make sure to tighten ...

Страница 27: ...15 kgfᆞcm 3 Close the terminal cover and fasten stopper bolt using 3mm wrench Fig 34 Connecting Feedback signal cables 5 2 3 Limit Switch Terminal 1 Open terminal cover and locate limit switch terminals 4 Locate terminal of limit switch and connect and according to the polarity Make sure to tighten bolts with 1 5 Nm 15 kgfᆞcm 2 Close the terminal cover and fasten stopper bolt using 3mm wrench Fig ...

Страница 28: ...und use 3mm wrench to loosen locking bolts of the terminal box cover A external ground bolt is located next to the conduit entry Please make sure that the resistance is less than 100ohm 3 When using external ground use screw driver to unscrew the ground bolts Insert external ground bolts and spring washer into ring type terminal of the ground cables and tighten them with bolts Fig 36 Connecting Ea...

Страница 29: ...e Action type 4mA of input signal will be its sensing point Upon sensing red LED will be lighted 3 If V and OUT terminals are connected electric current can be used on limit switch It can light up control room s lamp or make alarm sound 4 If V and OUT terminals are connected electric voltage can be used on limit switch It can receive signal from a computer 5 LS ACTION dip switch enable to switch t...

Страница 30: ... is extremely important to check the pressure level when the switch is loosened 2 Check whether the supply pressure is too high 3 After using Manual fuction A M switch should be returned to Auto Fig 38 A M switch adjustment 6 3 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...

Страница 31: ...on to the positioner Run Mode will be appeared on positioner s LCD screen in about 0 5 seconds RUN indicates that the positioner adjusts the valve stroke according to the receiving signal There are six types of display message in RUN Mode 1 Run PV Process Value valve stroke 2 Run SV Set Value input signal 0 100 3 Run SV mA Set Value input signal 4 20mA 4 Run MV Manipulate Valve Motor Manipulate Va...

Страница 32: ...nd Point P I D RA DA BIAS V_0 AUTO 1 O O X X X X AUTO 2 O O O O O O AUTO HF O O O O O O It is recommend to perform AUTO2 calibration for initial positioner setting 7 4 1 AUTO1 Calibration AUTO1 AUTO1 changes only zero and end points however other parameters PID etc will not be adjusted It is recommended to perform AUTO1 when the positioner has been set by the valve manufacturer already and the fie...

Страница 33: ...O HF Calibration AUTO HF AUTOHF calibration is same calibration process as to AUTO2 but AUTO HF is used when the valve has high friction level 7 5 Manual Mode MANUAL Manual mode is used to maneuver valve stem manually During MANUAL the positioner bypasses supply air to the actuator The movement of the stroke does not affect the positioner s saved data of a valve ENTER 6 seconds ENTER DOWN ENTER EN...

Страница 34: ...UN mode after changes are being made to observe the changes 7 6 1 Dead Zone dEAdZONE Dead Zone indicates the percentage of error allowance In case of high level of packing friction which may cause hunting creating Dead Zone can stable the valve operation 7 6 2 P Value KP P value indicates the ratio of the compensation signal based on the percentage of error allowance As the value increase the posi...

Страница 35: ... 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 7 6 5 P_ KP_ I_ KI_ D_ Kd_ Values P_ I_ and D_ values principles are same as P I and D values but these values will be activated when the error percentage is within 1 7 6 6 KF Value KF Value is a control parameter value for high level of...

Страница 36: ...int TR_ZERO and End Point TR_END for Transmitter Normal Reverse Feedback Signal TR NORM REVS Normal Reverse HART Signal HT NORM REVS 7 7 1 Zero Point PV_ZERO and End Point PV_END for Valves PZ_ZERO adjusts the zero point of the valve and PV_END adjusts the end point of the valve ENTER 6 seconds DOWN 3 times ENTER ENTER UP DOWN ENTER ESC Zero Adjustment DOWN ENTER UP DOWN ENTER End Adjustment ESC ...

Страница 37: ...he end point of the transmitter 4 20mA feedback 7 7 3 Normal Reverse Feedback Signal TR NORM REVS The feedback signal from the positioner can be changed to normal or reverse DOWN ENTER UP DOWN ENTER Zero Adjustment Match feedback signal with 4mA ESC DOWN ENTER End Adjustment UP DOWN ENTER ESC Match feedback signal with 20mA ENTER DOWN 5 times ENTER DOWN ENTER ESC 3 times ...

Страница 38: ...38 YT 3400 3450 series 7 7 4 Normal Reverse HART Signal HT NORM REVS HART signal from the positioner can be changed to normal or reverse ENTER DOWN 6 times ENTER DOWN ENTER ESC 3 times ...

Страница 39: ... Tight Shut Close TSHUT CL Split Range Mode SPLIT Custom Zero Setting Mode CST ZERO Custom End Setting Mode CST ENd Interpolation Mode ITP OFF ON Acting Type SINGLE dOUBLE Lever Type STd AdT 7 8 1 Acting Adjustment ACT RA dA The positioner can be set as Direct Action DA or Reverse Action RA ENTER 6 seconds DOWN 3 times ENTER ENTER UP DOWN ENTER ESC 3 times ...

Страница 40: ...ear LIN equal percentage EQ and quick open QO 7 8 3 User Characteristics USER SET In case positioner requires a specific characteristic the valve characteristic curve can be made by selecting up to 18 points of the curve ENTER DOWN ENTER UP DOWN ENTER ESC 3 times ENTER DOWN 2 times ENTER UP DOWN ENTER ENTER UP DOWN ENTER ENTER ESC 3 times Repeat step if necessary ...

Страница 41: ... CL Tight Shut Close allows the valve to close completely as the input signal reaches around 4mA 7 8 6 Split Range Mode SPLIT The valve can be operated by split range control 4 12mA or 12 20mA ENTER DOWN 3 times ENTER UP DOWN ENTER ESC 3 times ENTER DOWN 4 times ENTER UP DOWN ENTER ESC 3 times ENTER DOWN 5 times ENTER UP DOWN ENTER ESC 3 times 4 20mA Control 4 12mA Control ...

Страница 42: ...set at input signal of 7mA 7 8 8 Custom End Setting Mode CST ENd Custom End Setting Mode allows the user to set any specific point as end position For example the end point can be set at input signal of 11mA The difference between zero and end point must be greater or equal to 4mA ENTER DOWN 6 times ENTER UP DOWN ENTER ESC 3 times ENTER DOWN 7 times ENTER UP DOWN ENTER ESC 3 times ...

Страница 43: ... on or off if less than 30 degrees ITP function automatically The user can also manually turn on or off the ITP function as well as ITP values in ITP CST mode 7 8 10 Acting Type SINGLE dOUBLE Displays or changes actuator s current acting type 7 8 11 Lever Type STd AdT Displays or changes current lever type Lever type will affect ITP ENTER DOWN 8 times ENTER UP DOWN ENTER ESC 3 times ENTER DOWN 9 t...

Страница 44: ...ET 1 2 But PST test will stop if valve position goes out of the TOL or doesn t reach TARGET1 2 within the LIMIT TM After the valve position reach the TARGET 1 2 the valve will pause during the LATENCY and move back to the START PO The valve will be under ready state during the INTERVAL time after completing 1 cycle of PST in the SCHD mode ENTER 6 seconds DOWN 5 times TOL START PO TARGET 1 TARGET 2...

Страница 45: ...s start position when PST initiates The position must be in between 0 and 100 and default value is 100 Mode Description PST OFF Stop PST Schedule It s a default mode PST SCHD Run PST immediately After PST complete it turns back to the previous mode PST NOW PST runs repeatedly by interval value ENTER ENTER UP DOWN ENTER ESC 3 times ENTER DOWN ENTER ENTER UP DOWN ENTER ESC 4 times ...

Страница 46: ...d target position of PST The position must be in between 0 and 100 and default value is nA 7 9 3 4 INTERVAL Interval time days between 1st PST and the next PST The value must be between 1 365 and default value is 365 days ENTER DOWN ENTER UP DOWN ENTER ESC 4 times ENTER DOWN 2times ENTER UP DOWN ENTER ESC 4 times ENTER DOWN 3times ENTER UP DOWN ENTER ESC 4 times ...

Страница 47: ...me between start position and Target 1 and 2 The value must be between 0 600 sec and default value is 600 sec 7 9 3 7 LATENCY Latency for next movement after valve move The value must be between 1 60 sec and default value is 10 sec ENTER DOWN 4times ENTER UP DOWN ENTER ESC 4 times ENTER DOWN 5times ENTER UP DOWN ENTER ESC 4 times ENTER DOWN 6times ENTER UP DOWN ENTER ESC 4 times ...

Страница 48: ...rded NAME VAULE DEFAULT PST REC1 OOT LTO NR 0 600 sec 0 PST REC2 OOT LTO NR 0 600 sec 0 PST REC3 OOT LTO NR 0 600 sec 0 Error Message OOT When the valve position is out of tolerance TOL from Start Position START PO LTO When the valve doesn t reach to the target position within the Limit Time LIMIT TM NR When the valve doesn t move ENTER DOWN 2 times ENTER DOWN DOWN ESC 3 times ...

Страница 49: ... when valve position is at 25 bIAS 75 BIAS value when valve position is at 75 0Y 0d Total used time duration If a unit was used less than 1 minute the time will not accumulate FULL_OP Time elapsed for valve to fully open FULL_CL Time elapsed for valve to fully close VM NOR VM REVS Type of valve stroke on LCD VM NOR View Mode Normal 4mA 0 20mA 100 display VM REVS View Mode Revers 4mA 100 20mA 0 dis...

Страница 50: ...LUE I Current accumulated value of I ABS Absolute resistance value Temp Current Temperature W LOCK W UNLOCK When W UNLOCK you can parameters including auto calibration function When W LOCK cannot You can change it pushing ENTER ...

Страница 51: ...tioner Ensure the feedback leer does not touch the lever stopper at 0 and 100 CHK AIR Valve does not operate when positioner receive Full Open signal during the auto calibration Check supply pressure level RNG ERR Operating angle is too small due to improper positioner installation Adjust bracket so the positioner can be mounted closer to actuator C Error of 10 or more persists more than 1 minute ...

Страница 52: ...ull open close elapsed time is less than 1 second Actuator size is too small Use variable orifice Use larger actuator G Pv is below 100 The angle of feedback lever is too large Re install the positioner Ensure the feedback lever does not touch the lever stopper at 0 and 100 After re installation perform AUTO1 H Pv is over 4000 The angle of feedback lever is too large Re install the positioner Ensu...

Страница 53: ...53 YT 3400 3450 series 9 Main Software Map ...

Страница 54: ...Young Tech Co Ltd 81 Hwanggeum ro 89 Beon gil Yangchon eup Gimpo si Gyeonggi do South Korea 10048 Tel 82 31 986 8545 Fax 82 31 986 2683 Email ytc ytc co kr Issued 1 th Apr 2016 Version 1 06 Copyright Young Tech Co Ltd All Rights Reserved ...

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