YT-1000R English.hwp
Contents
1. 20 C to 120 C 1 4 7 kgf cm Made in Korea Model Number Indicates Explosion Proof Indicates Input Signal Indicates Ambient Temperature Indicates Supply Pressure Indicates Serial Number Indicates model name and any options if any explosion proof grade current input signal range ambient temperature for normal operation the range of supply pressure unique serial number Electro Pneumatic Positioners Suffix Symbol YT 1000R Ser ies YT 1000R series follows suffix symbols as follows YT 1000R 2 3 4 5 6 7 8 9 1 Motion Type Single Double 2 Explosion Proof 237 O0o3 oo0o ExdmllBT5 ExdmlICT5 ExiallBT6 or Non Explosion ExiallCT6 NEPSI 3 Feedback Lever gt M6X40L M6X63L M8X40L M8X63L NAMUR 4 Orifice ema i 02 None 5 Connection Type PT 6 Ambient Temperature 20 70 C 20 120 C 40 70C 7 Option 1 8 Option 2 L S Internal Standard Dome Indicator None PTM Internal PTM External explosion proof L S External explosion proof PTM L S Internal PTM L S External explosion proof For special specification please contact our sales department2. Electro Pneumatic Positioners Specification YT 1000R Series YT 1000R Category Single Double Input Signal 4 20mA DC 1 Impedance 250 159 Supply Pressure Stroke 1 4 7 0kgf cm 20 100 psi 0 90 2 Air Connection PT NPT 1 4 Gauge Connection PT NPT 1 8 Conduit Entry PF 1 2 or G 1 2 Explosion Proof 3 Domestic ExdmllBT5 ExdmllCT5 ExiallBT6 ATEX EExmdllBT5 JIS ExsdllBT5 CSA ExmdllBT5 NEPSI ExiallCT6 Protection IP66 Standard 20 70T cds Low 40 70 C High 20 120 C Temperature 20 60 C T5 20 40 6 Linearity 1 0 F S Hysteresis 1 0 F S Sensitivity 0 2 F S 0 5 F S Repeatability 0 5 F S Air Consumption 3LPM Sup 1 4kgf cm 20psi Flow Capacity 80LPM Sup 1 4kgf cm 20psi Material Aluminum Diecasting Weight 2 7kg 6 11b Tested under ambient temperature of 20 C absolute pressure of 760mmHg and humidity of 65 Please contact us for more detailed specification 1 For 1 2 Split Control it be applied by adjusting zero and span 2 For inquiry regarding strokes under 10mm or above 150mm please contact YTC 3 YT 1000R has different types of explosion proof certificates Please make sure to check explosion proof grade Electro Pneumatic Positioners YT 1000R Ser ies Parts and Assembly SPAN UNIT INDICATOR CONNECTOR
3. ZERO UNIT FEEDBACK SHAFT PILOT VALVE BASE BODY VENT UNIT FEEDBACK LEVER TORQUE MORTOR JUNCTION BOX Dimensions PT NPT 1 8 PDA 174 FORK LEVER TYPE Explosion proof type YT 1000R gt Electro Pneumatic Positioners YT 1000R Ser ies Conduit entry NONE E d 6 Gauge me ae oe 275 Za Supply 1 4 PT NPT 1 4 Intrinsically safe type YT 1000R gt Installation Safety Warning When installing positioner please ensure to read and follow safety instruction All input and supply pressure to valve actuator and other related devices must be turned off Use bypass valve or other equipment to avoid entire system shut down Make sure there is no remaining pressure in the actuator Tools for installation D Hexagonal wrench 2 Screw drivers amp 3 Spanners for hexagonal head bolts YT 1000R installation YT 1000R should be installed on rotary motion valve such as ball valve or butterfly valve using spring return type diaphragm or piston actuator Before installation be sure to check for following installation components CD YT 1000R main body 2 Feedback lever and lever spring Flange nut bottom side of YT 1000L 4 pcs of hexagon head bolts M8 X 1 25P 4 pcs of M8 plate washer Electro Pneumatic Positioners YT 1000R Ser ies Installation Steps Fi
4. Figure 21 High Pressure Balance 0 91 0 Ps Normal Output Pressure Balanced Point Output Balanced Point Med Pressure Balance Pressure 0 5 Ps Balanced Point Low Pressure Balance Output Pressure f 0 4 0 5 Ps 5 Ps Supply Pressure Intput Pressure lt Figure 21 gt 15 Electro Pneumatic Positioners YT 1000R Ser ies Adjustment Orifice If the size of actuator is too small relative to the flow rate positioner can have hunting In order to avoid hunting orifice can be used There are three types of the orifice Actuator Size Orifice Size Suffix Symbol 90 less 1 1 90 180 cm 22 2 180 cm more 3 2 Remove the o ring from OUT1 and OUT2 port and insert appropriate orifice After inserting orifice place back the o ring Make sure there is no substance entering into port lt Figure 22 gt If hunting persists after inserting the orifice please contact YTC or its appropriate agent Orifice diameter aA FOL Orifi O ring P5 S rin QUT2 ID lt Figure 22 gt Maintenance Pilot Valve Maintenance should be performed on Pilot Valve Relay at least once a year When dissembling the pilot valve relay please do make sure not to loose o ring or stabilizer spring Please refer to lt Figure 23 gt for the instructio
5. adjustment 2 Backlash can occur when the feedback lever and lever spring are loosen To avoid backlashing please adjust the lever spring 3 Check if the connection bar to the feedback lever is tightly fastened 18 Young Tech Co Ltd Address 662 8 Pungmu Dong Gimpo City Kyunggi Do South Korea Telephone 82 31 986 8545 Fax 82 31 986 2683 Website http www ytc kr User Manual and other information on the documents are subjected to change without any notice Please visit website for most updated information Printed Date Dec 2007
6. any approval from Young Tech Co Ltd South Korea Manufacturer Warranty For the safety it is imperative to follow instructions in the manual It is not manufacturer s liability for any damages which caused by users negligences itis not manufacturer s liability for any damages or accidents which resulted by any alteration or modification of the product and parts If alteration or modification is necessary please contact the manufacturer directly Manufacturer warrants the product from the date of original retail purchase of the product for one 1 year except as otherwise stated Manufacturer warranty will not cover the products that the product have been subjected to abuse accident alteration modification tampering negligence misuse faulty installation lack of reasonable care repair or service in any way that is not contemplated in the documentation for the product or if the model or serial number has been altered tampered with defaced or removed damages that occurs in shipment due to act of God failure due to power surge and cosmetic damage Improper or incorrectly performed maintenance or report voids this Limited Warranty For detailed warranty information please contact the corresponding local Young Tech Co Ltd office or main office in South Korea Electro Pneumatic Positioners Product Description Main Features and Functions Feedback Connection is easy Operation Logic SUPPLY 1 I
7. lt Figure 14 gt 12 Electro Pneumatic Positioners Connection Cable Gland D Use certified explosion proof products 2 End of cable must be crimp style terminal YT 1000R Ser ies Please refer to below table Figure 15 gt Bosic Shope of Unit mm Rubber Packing Nominal Size of In side Diameter of Quter Diameter of Packing Packing d Cable ie 10 40 99 110 11 011 010 1011 Figure 15 gt 9 Insert the terminal connection into terminal box and lock completely Insert washer and rubber packing and fasten the cable gland completely Fasten the clamp then Union Grouping and Union Cover Figure 14 gt Ground Upper side 3 Close back the terminal box cover Figure 16 gt Lower side Connection Power Black D Open terminal box cover Locate the poles and connect them properly Make sure to fasten the connection c Red D Figure 16 gt Safety Warning YT 1000R designed under intrinsically safe procedures and restriction However intrinsically safe system can be damaged from electronic energies from other electronic devices To avoid any system damages please read the following Differentiate intrinsically safe type circuit with other types of circuit clearly Apply proper protection device to reduce frictions If possible minimize the use of inductance a
8. Electro pneumatic Positioners YT 1000R Series USER S MANUAL Ver 1 02 YTC Electro Pneumatic Positioners YT 1000R Series Table of Contents Introduction 2 Manufacturer Warranty 2 Product Description 3 Main Features and Functions Operation Logic 3 Label Description 3 Suffix Symbols 4 Specification Parts and Assembly 6 Dimensions 6 Installation 7 Safety Warning 7 Tools for Installation 7 YT 1000R Installation 7 Using Brackets to Install 8 Connection 11 Connection Piping 11 Power Connection Explosion Proof Type 12 Adjustment 14 Adjustment Zero Point 14 Adjustment Span 14 Adjustment Auto Manual Switch 15 Adjustment Seat Adjuster 15 Adjustment Orifice 16 Maintenance Pilot Valve 16 Troubleshooting 17 Electro Pneumatic Positioners YT 1000R Ser ies Introduction Thank you for choosing YTC product Each product is fully inspected after the production to offer you the highest quality In order to fully utilize the product we strongly recommend users to read this manual carefully and understood The manual should be provided to the end user The manual can be changed or revised without any prior notice Any changes in product s specification structure and or any components may not result immediate revised version of the manual The manual should not be duplicated or reproduced for any purpose without
9. NPUT SIGNAL 4 20mA Response time is very short and accurate Simple part change can set 1 2 Split Range It is economical due to less air consumption Direct Reverse action can be set easily Zero amp Span adjustment process is simply D Figure 1 gt q OUT 2 OUT 1 YT 1000R Ser ies It is designed for high durability and performance in high vibration environment Durability has proven after testing of 1 million times minimum If supply pressure increased Flapper 2 gets pushed by the force from torque motor D As the gap between flapper and the nozzle 3 increases air pressure exhausts from pilot valve and upper spool 5 will be supplied to the actuator As a result spool rises Then the air pressure As actuator moves the cam receives the movement This movement pulls the span spring Figure 1 gt Label Description Fre MODEL NUMBER EXPLOSION PROOF INPUT SIGNAL AMBIENT TEMP SUPPLY PREESURE SERIAL NUMBER z 20Cto 60 C 1 4 7 kgf cm External Fuse lt 62mA E P POSITIONER JIS Yr 1000 EExmd 15 O3ATEX1195 1 EXmdIIBTS5 CSA 05 1613814 1 4 20mA DC Mox Prospective Isc 300A Made in Korea Fre MODEL NUMBER EXPLOSION PROOF INPUT SIGNAL AM SUPPLY PREESURE IENT TEMP SERIAL NUMBER E P POSITIONER C ou 26 e JIS Yr 1000 EiolBT6 420m DC 2
10. d with supply pressure port from actuator when using single acting type of spring return actuator Figure 11 gt O U 0072 OUT2 0071 Figure 11 gt Figure 12 gt 11 Electro Pneumatic Positioners Double acting actuator YT 1000R Ser ies For YT 1000 series double acting type when inputting current signal supply pressure is out from OUT1 Please refer to Figure 12 Direct Action Reverse Action Figure 13 Cam adjustment and piping connection Power Connection Explosion Proof Type Connection Connection Port 1 Connection port size is PF1 2 or G1 2 2 Make sure that the fastener bolts is tightly fastened 3 Make sure to seal tightly on the connection port and there is no leak 4 When connecting explosion proof type terminal the number of thread must be at least six and has to be water proof Figure 14 gt Shrouding Screw Junction Box Cover 0 rin Lock Nut Connecting Body Rubber Packing ad Washer Q ring e Hexagon Head Socket Set Screw Union Cover Cross Recessed Head and Pan Head Screw Cable Gland O ring Union Coupling with Set Screw
11. gure 2 Using Fork Type Lever gt Figure 3 Using NAMUR Shaft Using Brackets to Install YT 1000R is provided with standard bracket This bracket contains three parts and brackets can be used for both fork type lever and NAMUR Shaft Bracket Assembly Method co 26 5 39 5 64 30 55 5 26 5 39 5 74 ACTUATOR STEM HEIGHT 20 30 50 50 75 5 41 5 39 5 87 Figure 4 Assembly Method by stem height gt 1 In general the height of an actuator is 20 30 or 50mm Please check using acutator stem height and assemble bracket according to Figure 4 e Stem Height Actuator lt Figure 5 Measuring Stem Height H gt Electro Pneumatic Positioners YT 1000R Ser ies 2 Attach bracketed YT 1000R to the actuator by using hexagon headed and wrench bolts Size of the bracket hole is 6mm When tightening bolts use spring washer or similar for firm attachment to the actuator so YT 1000R will not shake by vibration or any other impact The direction of bracket is different by the operating condition but normally the positioner is installed as shown in lt Figure 6 gt lt Figure 6 gt 3 Set rotation position of the actuator stem at zero point 0 For a single type of actuator it is easy to check zero point because the actuator stem is positioned at zero point when there is no supply pressure If double acting actuator is used chec
12. heck the actuator s stroke stroke is too low adjust the span towards On the other hand if the stoke point is too high adjust the span towards If the After setting zero point confirm the span point Lock Screw one This step must be repeated until both points are properly set After setting is completed tighten Lock Screw Figure 19 gt Figure 19 14 Electro Pneumatic Positioners YT 1000R Ser ies Adjustment A M Switch Auto Manual D A M switch adjusts the valve operation to automatic or manual 2 When produced YT 1000R is set at A Automatic lf user prefers the positioner s setting as M Manual the setting can be changed by turning the switch counter clockwise Figure 20 gt 9 If it is set as M Manual the air pressure will be supplied to the actuator directly Always set back to A Automatic after setting change Auto Manual Switch If OUT2 in single acting actuator or double acting actuator is used A M Switch will not operate Figure 20 gt Adjustment Seat Adjuster D Seat Adjuster is set according to the customer s request before the positioner is delivered Please do not adjust the Seat Adjuster 2 Seat Adjuster is used for double acting actuator always and adjusted when the pressure balance point must be changed Please do not touch the Seat Adjuster because it can affect the positioner s performance
13. igure 9 gt lt Figure 9 gt 7 Tighten YT 1000R base and the bracket with hexagon headed bolts and plate washer It is recommended to tighten four bolts after checking YT 1000R s position lt Figure 10 gt ale o lt Figure 10 gt 10 Electro Pneumatic Positioners YT 1000R Ser ies Connection Connection Piping Note To avoid entering moisture oil or dust into the product please carefully make selection of supply pressure compressor It is recommended to attach air filter regulator before supply port of YT 1000R Supply Pressure Condition D Dry air with at least 10 C lower than ambient temperature 2 Avoid from dusty air Filter can only sort 5 micron or larger 3 Avoid any oil Comply with ANSI ISA 57 3 1975 R1981 or ISA S7 3 1975 R1981 5 Not to be used beyond the range of 1 4 7 kgf cn 140 700 Set air filter regulator s supplied pressure 10 higher than actuators spring range pressure Pipe Connection Make sure inside of pipe is emptied 2 Do not use pipeline that is squeezed or has hole 9 To maintain flow rate use the pipeline that has more than 6mm inner diameter 10mm outer diameter Do not use extremely long pipeline system It may affect flow rate due to the friction inside of the pipeline Piping Connection with Actuator Single acting actuator YT 1000 series single acting type is set to use OUT1 port OUT1 port should be connecte
14. k actuator stem s rotation direction clockwise or counter clockwise by supplying pressure Install the fork lever as shown in lt Figure 7 gt after setting actuator stem at zero point Check the direction of the actuator stem clockwise or counter clockwise Installation angle of the fork lever should be 45 degrees based on the linear shaft For NAMUR shaft the angle does not matter Counter Clockwise kp n Figure 7 gt Electro Pneumatic Positioners YT 1000R Ser ies 5 After setting fork lever position lock nuts which are assembled on the bottom of the fork lever Make sure to set upper height of the fork lever between 6 11mm which is lower than upper bracket height lt Figure 8 gt 6 11mm Fork Lever Actuator lt Figure 8 gt 6 Attach YT 1000R to the bracket Fix the clamping pin on the main shaft s center of YT 1000R and insert connection bar into the fork lever slot so it can be locked to the fork lever spring This sets the alignment of the main shaft of YT 1000R and center of the actuator stem Bad alignment of the main shaft and the actuator stem lowers YT 1000R s durability because too much force will be on the main shaft of YT 1000R lt F
15. n 1 Remove stopper bolts 2 Unlock the Auto Manual Switch 3 Remove if there is any blocking within the port and orifice lt Figure 23 gt 16 Electro Pneumatic Positioners YT 1000R Ser ies TROUBLESHOOTING gt Positioner does not respond to the input signal 4 Check supply pressure level The lever must be at least 1 4 kgf cm For spring return type of actuator the supply pressure level has to be larger than the spring s specification 5 Check if input signal is properly supplied to the positioner The signal should be 4 20mA DC 6 Check if zero point or span point is properly set 7 Check if the positioner s nozzle has been blocked Also check if the pressure is supplied to the positioner and the pressure is being exhausted through the nozzle If the nozzle has been block by any substances please send the product for repair 8 Check if feedback lever has been installed properly gt The pressure of OUT1 reaches exhausting pressure level and does not come back down 1 Check Switch If the switch has been damaged replace the switch or pilot relay valve 2 Check for a gap or damages between the nozzle and the flapper If damaged please send the product to YTC for repair gt The pressure is exhausted only by Switch 1 Check if the positioner s nozzle has been blocked Also check if the pressure is supplied to the positioner and the pressure is being exha
16. nd capacitance If they must be used set the devices at lower level than the maximum level Protect the wires from damages Grounding must be done properly according to the field s procedures 13 Electro Pneumatic Positioners Connection Ground D Open positioner s body cover 2 Locate properly the poles Figure 17 gt Adjustment and Adjustment Zero Point D Set supply signal at 4mA or 20mA and rotate adjuster clockwise or counter clockwise to adjust actuator s initial point taken account connect When setting initial point the specification of valve and system must be Please refer to Figure 18 for increase decrease of the zero point YT 1000R Ser ies Internal Grounding Terminal M4 0 7P Round head screw them its q Ee Grounding External Grounding Terminal M4 0 7P Round ead screw lt Figure 17 gt NES Ko lt Figure 18 gt When single acting actuator with spring is used please check if the pressure level which is indicated on the positioner is same to the supplied pressure level Adjustment Span D After setting zero supply 20mA or 4mA of signal direction direction Figure 19 gt Changing span point affects zero point setting So zero setting must be set again C
17. usted through the nozzle If the nozzle has been blocked by any substances please send the product to YTC for repair gt Hunting occurs 1 Check if safety spring has been displaced Next to Pilot relay valve 2 Check if the size of actuator is too small If so insert an orifice in order to reduce the pressure flow rate 3 Check if there is any friction between the valve and the actuator If so increase actuators size or reduce the friction level gt Actuator only operates by On Off 1 Check actuator and positioner s acting type Air pressure exhausts from YT 1000L s OUT1 port as input signal level increases Therefore it is standard to connect to OUT1 port when single actuator is used Make sure the span adjustment is properly set according to the valve system gt Linearity is too low 1 Check if positioner is properly positioned Especially check if the feedback lever is parallel to the ground at 50 point 2 Check if zero and span point have been properly adjusted If either one of values is being adjusted another one must be re adjusted as well 3 Check if supply air pressure level is stable from the regulator If the level is 17 Electro Pneumatic Positioners YT 1000R Ser ies unstable the regulator must be replaced gt Hysteresis is too low 1 In case of double acting actuator check if seat adjustment has been properly performed Please contact YTC for any further inquiries regarding the seat
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