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Smart Positioner

   

YT-2500 / 2550 / 2501 Series 

                                                                            Product Manual 

 

Ver. 1.34 

30 

 

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. The clamping pin will be locked to the fork lever 

spring.>

 Setting alignment of center of main shaft of the positioner and center of the actuator’s 

stem is very important. Poor alignment of the main shaft and the actuator’s stem decreases the 

positioner’s durability due to unnecessary forces on the main shaft. 

 

 

 

 
 
 
 
 
 
 
 
 
 
 
 

      Fig. 3-19:    Main shaft center alignment (Fork lever)          Fig. 3-20:    Main shaft center alignment (Namur) 

 

7) 

Tighten the positioner and the bracket with bolts 

after checking the positioner’s position.

 

Summary of Contents for YT-2500 Series

Page 1: ...SMART POSITIONER PRODUCT MANUAL YT 2500 2550 2501 SERIES VERSION 1 34 Rotork YTC Limited...

Page 2: ...YT 2501 Specification 16 2 6 Certifications 17 2 7 Parts and Assembly 18 2 8 Product Dimension 20 2 8 1 YT 2500 20 2 8 2 YT 2550 21 2 8 3 YT 2501 21 3 Installation 22 3 1 Safety 22 3 2 Tools for insta...

Page 3: ...UAL 44 9 6 Parameter Mode PARAM 44 9 6 1 Dead Zone dEAdZONE 45 9 6 2 P1 Value KP1 45 9 6 3 D1 Value Kd1 46 9 6 4 P2 KP2 and D2 Kd2 values 46 9 6 5 P_ KP_ and D_ Kd_ Values 46 9 6 6 PT1 PT1 and PT2 PT2...

Page 4: ...iew Mode VIEW 55 10 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 58 10 3 Error code which can be c...

Page 5: ...ase make immediate contact to Rotork YTC Limited Positioner is an accessory of the control valve so please make sure to read the applicable instruction manual of the control valve prior to installatio...

Page 6: ...ion Explosion proof type wires and packing should be used Blind plug is required when any port is not being used Ring terminal with surface area of more than 1 25mm2 with M4 spring washer should be us...

Page 7: ...The method of Auto Calibration is very simple As an advantage of having very low air consumption it could greatly reduce operating costs in large scale plants It is compatible with most of controllers...

Page 8: ...e range SERIAL NUMBER Indicates unique serial number MONTH YEAR Indicates manufactured month and year INTRINSIC SAFETY NONINCENDIVE Indicates intrinsic safety explosion proof grade AMBIENT TEMP Indica...

Page 9: ...Positioner YT 2500 2550 2501 Series Product Manual Ver 1 34 9 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 typ...

Page 10: ...T 2500 2550 2501 Series Product Manual Ver 1 34 10 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 No...

Page 11: ...Smart Positioner YT 2500 2550 2501 Series Product Manual Ver 1 34 11 Fig L 10 YT 2501 Intrinsic safety type KCs ATEX IECEx Fig L 11 YT 2501 Intrinsic safety type CCC...

Page 12: ...CU Intrinsic safety CCC 4 Lever Type 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 5 Conduit Air Connection Type 1 2 3 4 5 G 1 2 Rc 1...

Page 13: ...e Double 3 Explosion Proof N i Z Non Explosion Intrinsic safety KCs ATEX IECEx Intrinsic safety CCC 4 Lever Type Linear 1 2 3 4 10 40 mm 20 70 mm 50 100 mm 100 150 mm Rotary 5 Namur 5 Conduit Air Conn...

Page 14: ...Ex ia IIIC T100 C T85 C Db Ex iaD 21 T100 T85 See 2 6 Certificates for details Operating Temperature 30 80 C 22 176 F Inductive proximity limit switch internal type 25 80 C 13 176 F Ambient Temperatu...

Page 15: ...ner YT 2500 2550 2501 Series Product Manual Ver 1 34 15 Tested under ambient temperature of 20 C absolute pressure of 760mmHg and humidity of 65 Please contact Rotork YTC Limited for detailed testing...

Page 16: ...Sensor 40 120 C 40 248 F Body 30 80 C 22 176 F Ambient Temperature Of Explosion proof T5 30 60 C 22 140 F T6 30 40 C 22 104 F Linearity 0 5 F S Hysteresis 0 5 F S Sensitivity 0 2 F S Repeatability 0 3...

Page 17: ...No EPS 11 ATEX 1 363 X Ambient temperature 30 60 C T5 30 40 C T6 IECEx Type Intrinsic safety Rating Ex II 2G Ex ia IIC T5 T6 Gb Ex II 2D Ex ia IIIC T100 C T85 C Db IP6X Certification No IECEx EPS 11 0...

Page 18: ...50 2501 Series Product Manual Ver 1 34 18 2 7 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 Gaug...

Page 19: ...ner 2 Terminal of Remote sensor 11 PCB of Positioner 3 Main shaft of Remote sensor 12 Pilot of Positioner 4 Potentiometer of Remote sensor 13 Base body of Positioner 5 Base body of Remote sensor 6 Lev...

Page 20: ...Positioner YT 2500 2550 2501 Series Product Manual Ver 1 34 20 2 8 Product Dimension 2 8 1 YT 2500 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 O...

Page 21: ...itioner YT 2500 2550 2501 Series Product Manual Ver 1 34 21 2 8 2 YT 2550 Fig 2 7 YT 2550L Fig 2 8 YT 2550R 2 8 3 YT 2501 Fig 2 10 Rotary Remote Sensor Fig 2 9 Linear Remote Sensor Fig 2 11 YT 2501 Po...

Page 22: ...supportive equipment to avoid entire system shut down Ensure there is no remaining pressure in the actuator The positioner has a vent cover to exhaust internal air and drain internal condensation wat...

Page 23: ...r spring M6 nut and spring washer fastening feedback lever to a main shaft Bracket bolts and washers for positioner or sensor not supplied with the positioner Connection bar not supplied with the posi...

Page 24: ...the positioner or remote sensor with the bracket to the actuator yoke DO NOT TIGHTEN THE BRACKET COMPLETELY 3 Connect connection bar to the actuator clamp The hole gap on the feedback lever is 6 5mm s...

Page 25: ...ver spring as shown below right figure the connection bar or the lever spring will be worn out quickly because of excessive strong tension Fig 3 7 Proper way to insert connection bar between feedback...

Page 26: ...he 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 On both 0...

Page 27: ...Fork lever type Rotary bracket set 2 pieces 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 x 15L 4 pcs x M6 nuts 4 pcs x M6 spring washers Bolts...

Page 28: ...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...

Page 29: ...r check actuator stem s rotation direction clockwise or counter clockwise by supplying pressure to the actuator 4 Only Fork lever type of YT 2500 2550 Install the fork lever after setting actuator s s...

Page 30: ...k lever The clamping pin will be locked to the fork lever spring Setting alignment of center of main shaft of the positioner and center of the actuator s stem is very important Poor alignment of the m...

Page 31: ...st 10 lower than ambient temperature Avoid from dusty air Use 5 micron or smaller filter Avoid oil Comply with ISO 8573 1 or ISA 7 0 01 Supply pressure range is 0 14 0 7 MPa 1 4 7 bar Set air filter r...

Page 32: ...er 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 4 1 Single acting linear actuator Y...

Page 33: ...tioner 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 rota...

Page 34: ...onsider using a current source which could supply higher Compliance voltage Positioner with PTM options must be supplied with 9 28V DC separately For mechanical limit switch option separate 12 30V DC...

Page 35: ...Smart Positioner YT 2500 2550 2501 Series Product Manual Ver 1 34 35 Fig 5 2 Mechanical Limit Switch Terminal Only YT 2500 2550 Fig 5 3 Inductive Proximity Limit Switch Terminal Only YT 2500 2550...

Page 36: ...ensor and cables Only YT 2501 5 3 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...

Page 37: ...duct Manual Ver 1 34 37 6 Adjustments 6 1 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 Mech...

Page 38: ...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 Please use driver to adjust the orifice When slot of...

Page 39: ...base cover PCB cover Separate the Main PCB from base body 2 Mount 2ea of sub PCB support on Main PCB with 2ea of bolt 3 Insert connector of sub PCB into connector of main PCB correctly 4 Fasten sub PC...

Page 40: ...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 8 2 Seals Once a year it is recommend to...

Page 41: ...ny Auto Calibration please separate valve from the entire system by using bypass valve so Auto Calibration will not affect entire valve process 9 2 Button Description Positioner has 4 buttons and they...

Page 42: ...e display will change in the order indicated above If ESC UP pushed the order will be appeared in opposite order By pressing ESC the display will return to RUN PV mode Please note that the screen will...

Page 43: ...the above is not displayed Press UP or DOWN button if the above is not displayed A few seconds later 9 4 2 AUTO2 Calibration AUTO2 AUTO2 changes all of the parameters It is recommended to perform AUTO...

Page 44: ...e actuator control values However in some instances hunting or oscillation may occur when the valve actuator control values are not optimized Hunting or oscillation can be prevented by adjusting param...

Page 45: ...ds ENTER ENTER Press UP or DOWN button if the above is not displayed Press UP or DOWN button if the above is not displayed UP DOWN ENTER ESC 3 times 9 6 2 P1 Value KP1 P value indicates the ratio of t...

Page 46: ...times 9 6 4 P2 KP2 and D2 Kd2 values P2 and D2 values principles are same as P1 and D1 but these values are applicable for only when input signal is decreasing 9 6 5 P_ KP_ and D_ Kd_ Values P_ and D_...

Page 47: ...O dZ After the auto calibration the positioner will create deadzone automatically However depending on the valve s period of use hunting or oscillation may occur due to packing friction or other reaso...

Page 48: ...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 4 Normal Reverse HART Signal HT NO...

Page 49: ...nt 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 Fig 9 3 Set...

Page 50: ...eedback signal of HART communication from the positioner can be changed to normal or reverse ENTER ENTER DOWN Press UP or DOWN button if the above is not displayed ENTER ESC 3 times 9 8 Valve Mode VAL...

Page 51: ...everse Action RA ENTER 3 seconds ENTER ENTER Press UP or DOWN button if the above is not displayed Press UP or DOWN button if the above is not displayed UP DOWN ENTER ESC 3 times 9 8 2 Valve flow Char...

Page 52: ...re P0 4mA 0 P1 8mA 25 P2 12mA 50 P3 16mA 75 and P4 20mA 100 but user can change the values to different values User can change all 5 points or only change partially and exit the menu by pressing ESC b...

Page 53: ...R or ENTER ESC 2 times This function can be activated by selecting CHAR USR mode of above 9 8 2 Valve flow Characteristic Adjustment CHAR 9 8 4 Tight Shut Open TSHUT OP Tight shut open shows the curre...

Page 54: ...t is above Tight shut open set value it will release all the remaining pressure from Out1 of the actuator which will have the return spring power of the actuator or Out2 pressure to close the valve an...

Page 55: ...Series Product Manual Ver 1 34 55 9 9 View Mode VIEW Displays various information of the positioner ENTER 3 seconds ENTER DOWN Press UP or DOWN button if the above is not displayed DOWN DOWN DOWN DOW...

Page 56: ...ushing ENTER 4 18 0Y 0d Total used time duration If a unit was used less than 1 hour the time will not accumulate 1 st row 4 18 means 4hours and 18minutes 2 nd row 0Y years 0d days 3 12 FULL OP Time r...

Page 57: ...uto calibration When this error is detected auto calibration is aborted and this message is indicated immediately on LCD display Set the feedback lever horizontally when at 50 Re adjust the position o...

Page 58: ...on Auto calibration will stop and the error message will display on the LCD Make sure there are no leak in the out ports of the positioner or pipe lines 10 2 Error code which is displayed while using...

Page 59: ...ror category in View mode Refer to section 9 9 Re position the positioner so that the angle use of the feedback lever is larger than current angle Then perform AUTO1 calibration F Full open Full close...

Page 60: ...Smart Positioner YT 2500 2550 2501 Series Product Manual Ver 1 34 60 11 Main Software Map...

Page 61: ...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...

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