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User`s Manual Series SD Limit Controller

1. i I T o OO LT FI ues fw O Ofi Model Number Customer Front Panel 0 5 mm 0 020 in maximum gap between controller front and customer front panel 108 3 mm ps 4 26 in 10 3 mm 0 40 in 9 6 mm 0 38 in 108 8 mm 4 28 in Chapter 2 Install and Wire A Caution Follow the installa tion procedure exactly to guarantee a proper IP65 NE MA 4X seal Make sure the gasket between the panel and the rim of the case is not twisted and is seated properly Failure to do so could result in damage to equipment Installing and mounting requires access to the back of the panel Tools required Putty knife or equivalent Watlow Series SD Limit Installing the 1 32 DIN Series SD Limit Mounting Bracket Mounting Tab b Mounting Ridge Gasket Arrows indicate the direction of pull to remove the connectors Sa IP65 NEMA 4X Seal Example Sq Tarminal Cowar Hamaval Make the panel cutout using the mounting template dimensions in this chap ter Check that the rubber gasket lies in its slot at the back of the bezel Insert the limit into the panel cutout While pressing the bezel firmly against the panel slide the mounting bracket over the back of the limit If the installation does not requi
2. 0 31 in minimum Back horizontal Back vertical 97 8 mm 3 85 in Model Number Side horizontal 60 9 mm 2 40 in 97 8 mm 3 85 in Model Number 2 40 in Contact your local Greenlee supplier for the appropriate punch kit and cutout tools required for rapid mounting 1 4 DIN Series SD Limit Dimensions Side Front 92 0 to 93 0 mm 99 8 mm 3 93 in 3 62 to 3 65 in Panel Cutout 92 0 to 93 0 mm 99 8 mm 3 62 to 3 65 in 3 93 in Panel Thickness 1 52 to 9 53 mm 0 060 to 0 375 in 17 6 mm 0 68 in minimum Back 16 0 mm 0 63 in minimum Contact your local Greenlee supplier for the appropriate punch kit and cutout tools required for rapid mounting Watlow Series SD Limit 5 minimum 31 8 mm 1 25 in 7 9 mm 0 31 in minimum Panel Cutout Panel Thickness 1 52 to 9 53mm 0 060 to 0 375 in 92 0 to 93 0 mm 3 62 to 3 65 in 45 0 to 45 6 mm 1 77 to 1 79 in Dimensions for Horizontal or Vertical versions i I OO Gre RI 100 2 mm 3 95 in TA c O C z Q CT CA m ara LE HES Customer Front Panel 0 64 mm 0 025 in maximum gap between controller front and customer front panel 103 5 mm 4 08 in swe
3. 22 Chapter 4 Home Page 23 Chapter 5 Setup Page 24 Chapter 6 Operations Parameters Table 30 Chapter 7 Programming Page 32 Chapter 8 Factory Page and Calibration 34 Chapter 9 Features 39 Saving and Restoring User Setings 40 Operations Page 40 MOUSE rcc MAGAAN 7 40 ELI AA PA 42 NA 42 elransinit a dai S E udis 43 Communications 43 Troubleshooting sa xs 46 Error MessageS 48 ADDEN C ceud ad a a bb a oa bal 49 Specifications z 13 aC US 49 Ordering nformation 51 li eem zs LDU CPP 52 Declaration of Conformity Inside back cover Watlow Series SD Limit 1 Table of Contents 1 Overview The Watlow Series SD family of microprocessor based limit controllers is available in 1 32 1 16 1 8 and 1 4 DIN panel mount sizes The Series SD limit is added to applications to prevent over or under process conditions The Series SD limit provides safety assur ances against instances where a process runaway con dition occurs as a result of a failed sensor or output de vice The Series SD limit is recommended for any appli cation where system runaway could result in large product scrap costs damage to system equipment potenial fire hazard or risk to personnel A
4. in the lower display e Press the Advance Key to move through the parameter prompts Press the Up O or Down keys to change the parameter value Press the Infinity Key at any time to return to the Home Page Display Parameter Name Settings Range Default Modbus Appears if Description Integer values for Modbus 050 in parentheses Read Write Parameter Location 1 non 0 None 1 48R W All parameter locations iL L oJ 1 Limit 1 Low always appear on the Pc Parameter Location 2 L ih N2 Limit 1 High LIH 12 49RW Programming Page UL o 3 Limit 2 Low P3 Parameter Location 3 Lob 4 Limit 2 High Lelol 8 50 R W Pu Parameter Location 4 L 3L o 5 Limit 3 Low LOH i 4 51 R W L Jh 6 Limit 3 High PS Parameter Location 5 Alo 7 Alarm 2 Low 70 52 RW Ah 1 8 Alarm 2 High P6 Parameter Location 6 A 3L o 9 Alarm 3 Low Agh 8 53 RW R3h 10 Alarm 3 High P Parameter Location 7 S 1 11 Alarm Hysteresis 1 131 5 54 R V ULO Setup Page 55 R W PG Parameter Location 8 E95 12 Alarm Hysteresis 2 L 3H 6 P9 Parameter Location 9 Setup Page AJH 10 56 RW h 95 3 13 Alarm Hysteresis 3 10 Parameter Location 10 Setup Page H3LoJ 9 57 RW Addr 14 Modbus Device Pil Parameter Location 11 Setup Page nonEl 0 58 RW P
5. Filter Value Set the input filter value Output 1 Function Set Output 1 function Output 1 Limit Sides Selects Output 1 limit active sides Limit 1 Hysteresis Set the hysteresis for the limit This deter mines how far into the safe region the in put needs to move before the limit can be cleared Output 2 Function Set Output 2 function Output 2 Limit Sides Selects Output 2 limit Output 2 Hysteresis Set the hysteresis for the output This de termines how far into the safe region the input needs to move before the output can be cleared Output 2 Logic Select the output condition in the alarm state to max operating range of sensor if is set to PL o 40 100 to 1472 if SE a is set to SPL o 0 001 to 9999 if GE nis set tol MIA voLt ori Mu U Un LO m Oo Set precision with BgE Process Decimal Places 999 to 999 999000 to 999000 GFF 0 no filtering d 5P 1 filter only the display value Cont 2 filter the control input values both 3 filter the display and control input values 0 0 to 60 0 seconds 0000 to 60000 Limit 2 low sides active h 8hl 1 high side ac tive 0 0 to 999 0 0000 to 999000 Off 0 Process Alarm 1 Limit 2 low sides active 0 0 to 999 0 0000 to 999000 closed on alarm 0 open on alarm 1 both 0 both high and LobJ 2 low side active b
6. Calibration may have been corrupted Ambient temperature may be too hot or too cold Calibration may be corrupted Settings may have changed unexpectedly 48 Corrective Action Check sensor connections Check sensor connections and sensor wiring Change Sensor Type Setup Page to match the sensor hardware Restore factory calibration Verify that the temperature surrounding the controller is 0 to 65 C 32 to 149 F Restore factory calibration Press the Reset Key to clear the error Verify settings If error message persists contact the factory Chapter 9 Features A Appendix Specifications Controller Microprocessor based user programmable 1 Universal input 3 outputs 2 outputs on 1 32 DIN Output 1 latching mechanical relay limit output Display update 10 Hz adjustable digital filter Communication output isolated Displayed in C F or process units Operator Interface Dual 4 digit LED displays Advance Up Arrow Down Arrow RESET Home tactile keys Standard Conditions For Specifications Ambient temperature 25 C 77 F 8 C rated line voltage 50 to 60Hz 0 to 90 RH non condensing 15 minute warm up Universal Input Sampling rate 6 5 Hz Thermocouple Type J K T N C W5 E PTII F D W3 B R S thermocou ple types Whole or tenth of a degree resolution gt 20 MQ input impedance Maximum 20 O source resistance RTD 2 or 3 wire platinum 100 Q DIN curve
7. 00385 curve Whole or tenth degree indication 390 uA nominal RTD excitation currrent Process Range selectable 1 to 10V dc 1 to dc 4 to 20 mA Can reverse low and high values Voltage input impedance 20 KQ Current input impedance 100 O Minimum current source resistance 1 MO Input resolution 50 000 bits approximately at full scale Input Accuracy Input ranges Allowable Operating Ranges Type J 32 to 1 500 F or 0 to 815 C Type K 454 to 2 500 F or 270 to 1 370 C Type T 454 to 750 F or 270 to 400 C Type N 32 to 2 372 F or 0 to 1 300 C Type E 454 to 1 470 F or 270 to 800 C Type C 32 to 4 200F or 0 to 2 315 C Type D 32 to 4 200 F or 0 to 2 315 C Type PTH F 32 to 2 549 F or 0 to 1 395 C Type R 32 to 3 200 F or 0 to 1 760 C Type S 32 to 3 200 F or 0 to 1 760 C Type B 32 to 3 300 F or 0 to 1 816 C DIN 328 to 1 472F or 200 to 800 C Process 1 999 to 9 999 ur Thermocouple Input e Calibration accuracy 0 1 of input span 1 C at standard conditions e Temperature stability 0 2 degree per degree change in ambient for J K T N E F 0 3 for C and D 0 446 for B R excluding to 100 C and S excluding to 100 C 0 5 for R and S entire input accuracy range RTD Input e Calibration accuracy 0 1 of input range 1 C at standard conditions e Temperature stability 0 05 degree per degree change in ambient Process Input e Voltage input ranges Accu
8. 39 02 4588841 Fax 439 02 458 69954 Watlow Limited Robey Close Linby Industrial Estate Linby Nottingham England NG15 8AA Telephone 44 0 115 9640777 Fax 44 0 115 9640071 Latin America Watlow de M xico Av Fundici n 5 Col Parques Industriales Quer taro Qro M xico CP 76130 Telephone 52 442 217 6235 Fax 52 442 217 6403 Asia Pacific Watlow Australia Pty Ltd 23 Gladstone Park Drive Tullamarine Victoria 3043 Australia Telephone 61 39 335 6449 Fax 461 39 330 3566 Watlow China Inc 179 Zhong Shan Xi Road Hong Qiao Cointek Bldg Fl 4 Unit P Shanghai 200051 China Telephone 86 21 6229 8917 Fax 86 21 6228 4654 Watlow Japan Ltd K K Azabu Embassy Heights 106 1 11 12 Akasaka Minato ku Tokyo 107 0052 Japan Telephone 81 03 5403 4688 Fax 81 03 5403 4646 Watlow Korea Co Ltd Hanil Bldg 3rd Floor 210 5 Yangje Dong Seocho Gu Seoul 137 130 Korea Telephone 82 2 575 9804 Fax 82 2 575 9831 Watlow Malaysia Sdn Bhd 38B Jalan Tun Dr Awang 11900 Bayan Lepas Penang Malaysia Telephone 60 4 641 5977 Fax 60 4 641 5979 Watlow Singapore Pte Ltd Ayer Rajah Crescent 03 23 Ayer Rajah Industrial Estate Singapore 139949 Telephone 65 773 9488 Fax 65 778 0323 Watlow Electric Taiwan 10F 1 No 189 Chi Shen 2nd Road Kaohsiung Taiwan Telephone 886 7 288 5168 Fax 886 7 288 5568
9. Range Low Range Low Range between Low Limit of Sensor and Range High mA Low Limit of selected Sensor Range Process Input High and Low Scale When an analog input is selected as a process volt age or process current input you must choose the value of voltage or current to represent the low and high end values For example when using a 4 to 20 mA input the scale low value would be 4 00 mA and the scale high value would be 20 00 mA Commonly used scale ranges supported by the Series SD limit are 4 to 20 mA and 1 to 5V The maximum current scale is 20 mA and the maximum voltage scale is 10V The minimum current scale is 4 mA and the minimum voltage scale 1s 1V These minimum scale values allow the limit to detect a loss of the process input signal The Series SD limit will not work with O to 20 mA 0 to 5V or 0 to 10V process signals The Series SD limit allows you to create a scale range for special applications other than the standard ones listed above Reversing of the scales from high val ues to low values 1s permitted for analog input signals that have a reversed action For example 50 psi 4 mA and 10 psi 20 mA Select the low and high values with Process Scale Low and Process Scale High Setup Page Watlow Series SD Limit High Range and Low Range With a process input you must choose a value to represent the low and high ends of the current or volt age range Choosing these values allows the
10. Set the decimal places for the displayed 0000 P R lu oL tlor input value for process types 0890 2 PAu 0000 3 INFOSENSETM no 0 0 191 RW Always active IS En Enable the sensor feature which synchro YES 1 nizes the controller with a Watlow sensor ISP i INFOSENSE 1 0 to 999 500 92 R W is set tol YES IS P1 Set sensor point 1 code ISP INFOSENSE 2 0 to 999 500 93 R W is set tol YES IS P2 Set sensor point 2 code 15P3 INFOSENSE 3 0 to 999 500 94 R W is set tol YES IS P3 Set sensor point 3 code ISP4 INFOSENSE 4 0 to 999 500 95 R W is set tol YES IS P4 Set sensor point 4 code Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parame ters are in F through Modbus Low register numbers contain the two higher bytes high register numbers contain the two lower bytes of the four byte integer Decimal precision is implied at three decimal places unless otherwise noted Watlow Series SD Limit 24 Chapter 5 Setup Display Parameter Name Range Default Modbus Appears if Description Integer values for Modbus 20050 in parentheses Read Write Process Scale Low 1 00 to 20 00 mA if 4 00 mA 73 74 GEnlis set tol 208 Sc Lo Set the low scale for process inputs is set to R W mA 1000 to 20000 0 50 to 10 00V if SEnlis 1 00V 77 18 GEnlis set to uol E set to R
11. Warning Use National Electric NEC or other country specific standard wiring and safety practices when wiring and connecting this limit to a power source and to electri cal sensors 0r peripheral de vices Failure to do so may re sult in damage to equipment and property and or injury or loss of life Quencharc Note Switching inductive loads relay coils solenoids etc with the mechanical relay switched dc or solid state relay output options requires use of an R C suppres sor Watlow carries the R C sup pressor Quencharc brand name which is a trademark of ITW Paktron Watlow Part No 0804 0147 0000 Note To prevent ground loops isolation needs to be maintained from input to output when using switched DC or analog process outputs Watlow Series SD Limit Figure 16a Output 3 Open Collector SD L e Maximum current sink 250 mA dc e Maximum supply voltage 42V dc For inductive loads see Quencharc note Output does not supply power Open Collector 42V dc maximum dc 12 12 dc 13 open collector e 14 common Class 2 power source required for agency compliance Figure 16b Output 3 Process SD L F e Analog output scalable from to 10V dc or to 20 mA dc e Load capability voltage 1 kO minimum current 800 O maximum Output supplies power Cannot use voltage and current output at the same time 12 amps 13 vol
12. rameter must be set to 3 or the limit must be remotely mounted to restrict casual ad yustment of limit set points up Page locked except for iL OC Limit set points are the only Operation Page pa rameters accessible 3 Full lockout All pages locked except for Set up Page See the Features Chapter for details Note Parameters appear in the Operations Page only if activated from the Programming Page Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parame ters are in F through Modbus Low register numbers contain the two higher bytes high register numbers contain the two lower bytes of the four byte integer Decimal precision is implied at three decimal places unless otherwise noted Watlow Series SD Limit 29 Chapter 5 Setup b Operations Parameters Table These parameters can be selected to appear in the Operations Page Select parameters to appear in the Operations Page in the Programming Page Press the Advance Key from the Home Page to enter the Operations Page To return to the Home Page press the RESET Key Display Parameter Name Range Default Modbus Appears if Description Integer values for Modbus be in parentheses Read Write Limit 1 Low SPL o to 5PA 1 74 102 103 L Sd lis set to L1 Lol Set the low limit set point value
13. 35 L LL o 20 22 23 30 Uu 9 22 36 L 2h 1 20 22 23 30 Ud SP 21 28 21 o 20 22 23 30 US r c 22 34 L Jh 1 20 22 23 30 U5 5 22 34 L JL 0 20 22 23 30 L 2121 26 L REJ 21 27 21 28 l Qc 21 26 1 Ge 3 21 27 L in 21 24 LOC 21 29 L Sd 1121 25 6242 21 26 L 6243 21 26 03 15 22 36 z u 22 36 22 36 Watlow Series SD Limit 54 Appendix Notes Watlow Series SD Limit 55 Appendix Notes Watlow Series SD Limit 56 Appendix Declaration of Conformity Series SD Watlow Winona Inc 1241 Bundy Blvd Winona MN 55987 USA Declares that the following product Designation Series SD Model Numbers SD 3 4 6 8 or 9 Cor L Hor L C F J or KA C J K or U A C E F or K A or R any three letters or numbers Classification Temperature control Installation Category 11 Pollution degree 2 Rated Voltage 100 to 240VA ac or 24Vt ac or dc Rated Frequency 50 or 60 Hz Rated Power Consumption 10VA maximum M eets the essential requirements of the following European Union Directives by using the relevant standards shown below to indicate compliance 89 336 EEC Electromagnetic Compatibility Directive EN 61326 1997 With A1 1998 Electrical equipment for measurement control and lab A2 2002 oratory use EMC requirements Industrial Immunity Class B Emissions EN 61000 4 2 1996 With Al 1998 Electrostatic Discharge Immunity EN 61000 4 3 1997 Rad
14. P 6 To access the Operation Page parameters press the RESET key to return to the Home Page Press the Advance 6 key to see the Operation Page parameters Only the parameters selected on the Programming Page appear on the Operations Page RHelo ACH Watlow Series SD Limit 33 Chapter 7 Programming 8 Factory Page and Calibration To go to the Factory Page press both the Up O and Down keys for six seconds from the Home Page will appear in the upper display and P 8 9E in the lower display e Press the 6 Advance Key to move through the parameter prompts e Press the Up or Down Q keys to change the parameter value Press the RESET Key at any time to return to the Home Page Display Parameter Name Range Default Modbus Appears if Description Integer values for Modbus mu in parentheses Read Write RP b Ambient Temperature 50 0 to 300 0 F NA 268 R Always active Displays the current calculated ambient 269 R temperature Minimum Recorded Ambient 50 0 to 300 0 F NA NA Always active A Mn Temperature Displays the minimum recorded ambient temperature APNA Maximum Recorded Ambient 50 0 to 300 0 F NA NA Always active A MA Temperature Displays the maximum recorded ambient temperature Display Intensity 15 to 100 duty 100 NA Always active dSPL Increase or decrease the brightness of the upper and lower display Restore Factory Calibration 0 0 199R W Always active rESt Replaces t
15. Set the low scale for the retransmit 1999000 to 9999000 R W output SD output ____ and is set to rjh Output 3 Retransmit High Scale 1999 0 to 9999 0 500 318 319 Output 3 is a process r3 hi Set the high scale for the retransmit 1999000 to 9999000 R W output 80 output ____ and is set to 3 0 Output 3 Retransmit Offset 999 0 to 999 0 0 320 321 Output 3 is a process r3 hi Set the offset value for the retransmit 999000 to 999000 RW output SD__ ___F output and is set to Input Error Latching off 0 0 90R W Always active I Err Turn input error latching on or off on 1 Ugd5P Upper Display Look None 0 1 44 R W Alvvays active Selects what value appears in the upper display Point 2 Point 3 Point 4 Point 5 Point 6 Point 7 Point 8 Point 9 Point 10 Point 11 Proc 1 Process Value LiLo Limit 1 Low Set LIB i Limit 1 High Set Lelo Limit 2 Low Set Lgh 1 Limit 2 High Set ROL Alarm 2 Low Set Agh Alarm 2 High Set L JL o Limit 3 Low Set TJR Limit 3 High Set AJL Alarm 3 Low Set A3h Alarm 3 High Set Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parame ters are in F through Modbus Low register numbers contain the two higher bytes high register numbers contain the two lower bytes of the four byte
16. able to change and view all prompts 1n the Op eration and Factory Pages 2 The Programming Page is locked from view The Setup Page will be locked except for the prompt which can be viewed and changed The user can change the limit low and limit high set points only All prompts except for the and in the Operation Page are locked from view Full lockout of prompts and menus All prompts in the Operation and Setup Pages are locked from view The operator can use the Reset Key for clearing limits and alarms and for silencing alarms The operator can also use the QUp arrow and QDown arrow keys to access the prompt in the Setup Menu which can be viewed and changed Note For FM Approval the parameter must be set to 3 or the limit must be mounted remotely to restrict casual user adjust ment Chapter 9 Features Set Point Low Limit and High Limit The controller constrains the limit set point to a val ue between a low limit and a high limit The high limit cannot be set higher than the sensor range high limit or lower than the sensor range low limit The low limit cannot be set lower than the sensor range low limit or higher than the sensor range high limit Set the limit set point range with Set Point Low and Set Point High Setup Page High Limit of selected Sensor Range Range High Range between High Limit of Sensor and Range Low Range Set Point Range must be between Range High and Range Low Temperature
17. alarm function Alarm silencing also allows the operator to disable the alarm output while the controller is in an alarm state by pressing the RESET Key The process tem perature has to enter the normal operating range beyond the hysteresis zone to activate the alarm output function again Turn alarm silencing on or off with Alarm 2 or 3 Si lencing Or Setup Page Alarm High Set Point Hysteresis Process Temperature Normal Operating Range Temperature Hysteresis wou Low Set Point Startup Alarm disabled Alarm triggered here Time Retransmit The retransmit feature allows a process output to provide an analog signal that represents the set point or actual process value The signal may serve as a remote set point for another controller or as an input for a chart recorder to document system performance over time Any process output can be configured as a retransmit output Communications Chapter 9 Features Overview A Series SD controller can also be programmed and monitored by connecting it with a personal computer or programmable logic controller PLC via serial commu nications To do this it must be equipped with an EIA TIA485 SD OU _ communications option for Output 2 Your PC or PLC must have avail able an EIA TIA 485 interface or use an EIA TIA 232 to EIA TIA 485 converter See Selecting an EIA TIA 232 to EIA TIA 485 converter in Chapter 2 The EIA TIA
18. and move to the next prompt 5 Disconnect the millivolt source and connect the ref erence compensator or thermocouple calibrator to terminals 11 and 10 4 With type J thermocou ple wire if using a compensator turn it on and short the input wires When using a type J calibra tor set it to simulate 0 C 32 F Allow 10 seconds for the controller to stabilize Set Thermocouple Calibration 32 tol 9ES Press the Ad vance Key to store type J thermocouple calibra tion and move to the next prompt 6 Rewire for operation and verify calibration Watlow Series SD Limit RTD Input Procedure Equipment 1kQ decade box with 0 019 resolution Input Setup and Calibration 1 Connect the correct power supply to terminals 1 and 2 see Chapter 2 2 Connect the decade box to terminals 10 S1 11 S3 and 8 92 with 20 to 24 gauge wire 3 Enter 15 009 from the decade box Allow at least 10 seconds to stabilize Set RTD Calibration 150 tol YES Press the Advance Key to store the 15 00Q input and move to the next prompt 4 Enter 380 009 from the decade box Allow at least 10 seconds to stabilize Set RTD Calibration 3800 tol 9E S Press the Advance Key to store the 380 009 input and move to the next prompt 5 Rewire for operation and verify calibration Voltage Process Input Procedure Equipment e Precision voltage source 0 to 10V minimum range with 0 001V resolution Input Setup and Calibratio
19. and programming selections will also determine what parameters appear in the Operations Page A Programming Page selection will not appear in the Operations Page if the parameter is not active Programming Page Parameter Location 1 48 Parameter Location 2 49 Parameter Location 3 50 48 Y e fu O Parameter Location 4 51 Parameter Location 5 52 Parameter Location 6 53 Parameter Location 7 54 Parameter Location 8 55 Parameter Location 9 56 Parameter Location 10 57 Parameter Location 11 58 Parameter Location 12 59 Parameter Location 13 60 Parameter Location 14 61 Parameter Location 15 62 Parameter Location 16 63 un o m o m D J O Co LO o o o o o un o m Programming Page parameters Modbus register numbers P1 through P16 are 48 through 63 Watlow Series SD Limit Factory Page Overview The Factory Page contains information on diagnostics calibration and restore parameter functions To go to the Factory Page press both the Up O and Down Q keys for six seconds from the Home Page Press the Advance Key to move through the pa rameter prompts Press the Up or Down Q keys to change the pa rameter value of Read Write R W parameters Press the RESET Ke
20. controller s display to be scaled into the actual working units of measurement For example the analog input from a hu midity transmitter could represent 0 to 100 percent rel ative humidity as a process signal of 4 to 20 mA Low scale would be set to 0 to represent 4 mA and high scale set to 100 to represent 20 mA The indication on the dis play would then represent percent humidity and range from O to 100 percent with an input of 4 to 20 mA Select the low and high values with Units Scale Low and Units Scale High Setup Page Limits Limit outputs are activated when the process value or temperature goes above the high limit set point or be low the low limit set point Limit outputs are always latching The operator must press the RESET Key or cycle the input power to clear the limit condition once the process has returned to a safe condition Configure limit outputs in the Setup Page before setting limit set points Output 1 is always a limit output Limit Sides Limit outputs can have a low limit set point high limit set point or both low and high limit set points For example if the application only requires high limit pro tection select high side active R 9h for limit sides L d Setup Page Alarms Alarms are activated when the process value or tem perature leaves a defined range A user can configure how and when an alarm 1s triggered what action it takes and whether it turns off automatically when the alarm
21. for Out R W bot hjor Lob uU put 1 Limit 1 High SPL o to SBh 75 104 105 Sg 1135 set to LLhil Set the high limit set point value for R W bokhlorih 9h Output 1 Limit 2 Low SPL o to SPh 1 74 117 118 THIQE lis set to L2 Lol Set the low limit set point value for Out R W L IP Vand 5d0 is put 2 set to or Lob gU Limit 2 High SPL o to S5Ph 75 119 120 If BE O lis set to L2 Lol Set the low limit set point value for Out R W L If and 5d0 is put 2 set to or h 19h Alarm 2 Low Process range of sensor if 32 117 118 If is set to A2 Lo Set the low alarm set point for Output is set to or R W P RL 2 1999 to 9999 if is set tol 794 uoL E or Hu 1999000 to 9999000 Alarm 2 High Process range of sensor if 1500 119 120 If is set to A2 hi Set the high alarm set point for Output is set to or R W P RL 2 1999 to 9999 if is set tol 282 Lot E or Hu 1999000 to 9999000 Limit 3 Lovv SPL o tol6Ph 74 132 133 If Qt 3 is set to IL3 Lol Set the low limit set point value for Out R W L IPA and L 5d is put 3 set to or iLoLu Limit 3 High 68PLolto 5Ph 75 134 135 f L 3 is set to IL3 Lol Set the low limit set point value for Out R W L IP and 1 5g3lis l put 3 set to or Ih 19h Alarm 3 Low Process range of sensor if 32 132 133 If is set to A3 Lo Set the low alarm set point for Output is set to or R W B 1999 to 9999 if is set to PAA luoLE Or 1999000
22. in the Operations Page it is accessible through both If you change a parameter in the Operations Page it 1s automatical ly changed in its original page If you change a parameter in its original page it is automatically changed in the Operations Page The default parameters will automatically appear in the Operations Page Watlow Series SD Limit 40 To change the list of parameters 1n the Operations Page hold down the RESET key then press the Ad vance Key and hold both down for about six seconds This will take you to the Programming Page Press the Advance Key once to go to the first se lection in the page The parameter choices will appear in the top display and the selection number will appear in the bottom display Use the Up or the Down Q key to change the selected parameter in the top display If you do not want a parameter to appear for that loca tion select o o n To change the other 15 selections press the Advance Key to select a place in the page Pijto P 16 in the bottom display and use the Up O or the Down Q key to change the parameter se lected in the top display Changes made to the Operations Page will persist until changed by the operator or defaulted by full de faults or user defaults User defined parameters are not over written by default parameters if those features be come enabled Only parameters supported by a con troller s particular hardware configuration and pro gramming se
23. incorrect Output parameters are set incorrectly DC voltage applied to output option K solid state relay output Output wiring is incorrect For solid state relay option K and mechani cal relay option E or J power must be ap plied Output parameters are set incorrectly 46 Corrective Action Check switches fuses breakers interlocks limit devices connectors etc for energized condition and proper connection Measure power upstream for required level Verify supply power requirements using the part number Check wire size Check for bad connections Check Setup Page and set to correct address Check Setup Page and set to correct baud rate Look for a break in the daisy chain Verify correct connections and test wiring paths Check converter box wiring and its documen tation Reconfigure computer s COM port setup and verify that communications are ok Check the communication card documentation for settable variables and operational testing Restart PC software and check for settings agreement Verify the COM bus is active Verify operation with Watlow communications tool available at www watlow com Add termination resistors for EIA TIA 485 see Install and Wire chapter Hold the infrared device within range and an gle of view to the controller Verify infrared settings Verify the output wiring Verify the output parameter settings Solid state relay optio
24. integer Decimal precision is implied at three decimal places unless otherwise noted Watlow Series SD Limit 28 Chapter 5 Setup Display Parameter Name Range Default Modbus Appears if Description Integer values for Modbus 0 in parentheses Read Write Lower Display Look non None 0 3 45 Always active Selects what value appears in the lower Proc 1 Process Value Point 2 L ih 1 Limit 1 High Set Point 3 tl o Limit 2 Low Set Point 4 Leh Limit 2 High Set Point 5 AL ol Alarm 2 Low Set Point 6 Agh Alarm 2 High Set Point 7 L 34 og Limit 3 Low Set Point 8 L 3h Limit 3 High Set Point 9 AJL o Alarm 3 Low Set Point 10 A3h Alarm 3 High Set Point 11 Modbus Device Address 1 to 247 1 This can Output 2 is a communi Addr Set the device address for communica only be set cations output tions Every controller on a network must fromthe SD U have a unique address controller front panel bHud Baud Rate 9500 9500 This can Output 2 is a communi bAud Set the baud rate at which the communi 192 only be set cations output cations occurs 304 from the SD U controller front panel Lockout no lockout 10 43RW Always active LOC Set the security level for the user inter 1 Programming face Page locked and Setup Page locked except for iL OL c 2 Program ming Page locked and Set Note For FM Approval the pa
25. into the panel cutout Slide the retention collar over the limit with the locating holes facing the back of the limit Slide the mounting bracket over the back of the limit with the screw tips pointed toward the panel aligning with the locating holes in the retention col lar Push it gently but firmly over the limit until the hooks snap into the slots at the front If the installation does not require an IP65 NEMA 4X seal tighten the four screws with the Phillips screwdriver just enough to eliminate the spacing be tween the rubber gasket and the panel For an IP65 NEMA 4X seal tighten the four screws until the gap between the bezel and panel surface is 0 5 mm 0 020 in maximum Make sure that you cannot move it back and forth 1n the cutout If you can you do not have a proper seal Do not over tighten Over tightening could damage the mounting bracket Removing the 1 4 DIN Series SD Limit 1 Remove the terminal cover and all of the wiring connectors from the back of the limit Using the Phillips screwdriver unscrew the four screws on the mounting bracket two on top two on bottom until they disengage from the retention collar Slide the tip of a flat screwdriver between the limit and the center top side of the mounting bracket Rotate the screwdriver 90 degrees stretching the bracket away from the limit so the hooks on the bracket disengage from the slots Hold the bracket and press the limit forward slightly to prevent the di
26. model numbers e Input impedance 20 kO dc only Wer 9 MI S11 Wo LD EN Figure 124 0 to 50mV dc Process Input all model numbers Input impedance 520 MQ dc only 12 Chapter 2 Install and Wire A WARNING Process input may not have sensor break protec tion Outputs can remain full on Check your input settings AN Warning Use National Electric NEC or other country specific standard wiring and safety practices when wiring and connecting this limit to a power source and to electri cal sensors 0r peripheral de vices Failure to do so may re sult in damage to equipment and property and or injury or loss of life Quencharc Note Switching inductive loads relay coils solenoids etc with the mechanical relay switched dc or solid state relay output options requires use of an R C suppres sor Watlow carries the R C sup pressor Quencharc brand name which is a trademark of ITW Paktron Watlow Part No 0804 0147 0000 Spring clamp wiring connector note To insert the wire push the wire into the desired connection num ber and it should automatically lock into place To remove the wire press and hold the orange release tab with a small screw driver Pull the wire out of the connection Solid or tinned wire recommended Note To prevent ground loops isolation needs to be maintained from input to output when using switched DC or analog process outp
27. or output power value during operation or the pa 1 32 DIN WATLOW LIMIT SD 1 02 1 20 30 Active Output Indicator Lights Lit when the correspon ding limit or alarm out put is tripped Watlow Series SD Limit 19 Chapter 3 Keys and Displays Home Page Overview The Home Page is the default display of the Series SD limit controller When the limit is powered up or you exit any other page the Home Page appears The pa rameters that appear in the Home Page are deter mined by the Display Look settings in the Setup Page see Chapter 5 The process value is the default for the upper display and the High Limit Set Point is the de fault for the lower display Press the RESET key to exit any other page and return to the Home Page display The Home Page also displays operational status infor mation such as error messages limit status and alarm status Normal Operation Default Displays Operating in Safe Condition 15 Process Value 15 Limit high set point Use Up O or Down keys to raise or lower the high limit set point Limit Tripped Operation Operating in Limit Condition Process Value 1 LAs Limit message alternates with high limit set point in lower display md Un un r Output 1 indicator light is on Error condition sem fewer pee Dashed lines Error message Error message alternates with limit and or alarm messages in lower display Alarm Message Process value Alarm messag
28. registered trademark of the Underwriter s Laborato ries Inc CSA C22 2 24 Temperature Indicating and Regulating Equip ment File LR30586 NSF2 National Sanitation Foundation for calibration accuracy with J K E T or RTD sensors File 49660 0002 0001 Terminals Watlow Series SD Limit Touch safe Input power and control outputs 12 to 22 AWG 6 mm 0 25 in strip length Sensor inputs and process outputs 20 to 28 AWG 8 mm 0 30 in strip length Torque terminal blocks 1 to 6 SD__ _ C KorJ andl1to4 SD FP JareO 8 Nm Y in lb terminal blocks 12 13 14 are 0 9 Nm 8 in lb Solid or tinned wire recommended 50 Power e 100 to 240V ac 1090 15 50 60 Hz 5 24Vz ac dc 1090 15 50 60 Hz 590 Class 2 power source is required for low voltage model 10VA maximum power consumption e Data retention upon power failure via nonvolatile memory Operating Environment e 18 to 65 C 0 to 149 F 0 to 90 RH non condensing Storage temperature 40 to 85 C 40 to 185 F Dimensions DIN Size 1 32 1 16 1 8 Vertical 1 8 Horizontal 1 4 Behind Panel max 97 8 mm 8 85 in 97 8 mm 3 85 in 97 8 mm 3 85 in 97 8 mm 3 85 in 101 1 mm 3 98 in Functionality Matrix Limit Universal Input Input 1 Output 1 Output 2 Output 3 notice Width 52 6 mm 2 07 in 52 1 mm 2 05 in 52 8 mm 2 08 in 99 8 m
29. serial communications Watlow Series SD Limit 35 Chapter 8 Factory Display Parameter Name Settings Range Default Modbus Appears if Description Integer values for Modbus portare in parentheses Read Write Input Calibrate 9 0 Volt NA Alvvays active I V9 Calibrate the process voltage input to 9 0 YES Volt see Calibrating the Series SD Input Calibrate 4 0 mA NA Always active AA Calibrate the process current input to 4 0 YES mA see Calibrating the Series SD Input Calibrate 16 0 mA NA Always active I A 16 Calibrate the process current input to YES 16 0 mA see Calibrating the Series SD Output 3 Calibrate 1 0 Volt NA The respective output is 03 1v The voltage process output transmits YES process 1 000V see Calibrating the Series SD Output 3 Calibrate 9 0 Volt NA The respective output is 03 9v The voltage process output transmits YES process 9 000 V see Calibrating the Series SD 034A Output 3 Calibrate 4 0 mA NA The respective output is 03 4A The current process output transmits YES process 4 000 mA see Calibrating the Series SD 03 15 Output 3 Calibrate 16 0 mA NA The respective output is 03 16 The current process output transmits YES process 16 000 mA see Calibrating the Series SD The Series SD limit can be calibrated only with the front panel controls These parameters are not visible through serial
30. wereceive your return we will examine it and try to verify the reason for returning it 4 n cases of manufacturing defect we will enter a repair order replacement order or issue credit for material returned n cases of customer mis use we will provide repair costs and request a pur chase order to proceed with the repair work 5 Toreturn products that are not defective goods must be be in new condition in the original boxes and they must be returned within 120 days of receipt A 20 percent restocking charge is applied for all returned stock controls and accessories 6 Iftheunit is unrepairable you will receive a letter of explanation and be given the option to have the unit returned to you at your expense or to have us scrap the unit 7 Watlow reserves the right to charge for no trouble found NTF returns The Series SD User s Manual is copyrighted by Watlow Winona Inc November 2004 with all rights reserved Table of Contents Chapter 1 Overview 2 Chapter 2 Install and Wire 4 DIMENSIONS 3 99 ars ae dvd geht ote hah Ho ors alay dai 4 Installation eme aed lane acs ad aot 6 NULL CA PRU oL PA 11 Chapter 3 Keys and Displays 19 Home Page Overview 20 Operations Page Overview 20 Setup Page Overview 21 Programming Page Overview 22 Factory Page Overview
31. 000 Note To prevent ground loops isolation needs to be maintained from input to output when using switched DC or analog process outputs Watlow Series SD Limit Figure 14a Output 2 Solid state Relay SD L K 0 5 A maximum Form A e 24 to 240V ac e See Quencharc note e Minimum load current 10mA e Maximum leakage current 100uA e Not for use with direct current dc e Output does not supply power Solid state Relay __ Solid state Switch 3 COM 4 E bz Internal Circuitry Figure 14b Output 2 Switched DC SD L C e Maximum supply current 30 mA dc Supply voltage 6 to 12V dc e Not recommended for switching mechanical relays e Output supplies power a Lu 6 to 12V dc 3 dc 1 gt lt 4 dc e dc 3 eL dc 4 sh Figure 14c Output 2 EIA TIA 485 SD L UU CU Isolated 50V d3c l e Half duplex e For more communications information see the Features chapter 1 T R 3 si T R 4 eL 14 Chapter 2 Install and Wire AN Warning Use National Electric NEC or other country specific standard wiring and safety practices when wiring and connecting this limit to a power source and to electri cal sensors 0r peripheral de vices Failure to do so may re sult in damage to equipment and property and or injury or loss of life Quencharc Note Switching inductive loads relay coils solenoids etc with the mechanical
32. 1 Sides Limit 1 Hysteresis Output 2 Function Limit 2 Sides Alarm or Limit 2 Hysteresis Alarm 2 Logic Alarm 2 Latching Alarm 2 Silencing Alarm 2 Message Output 3 Function Limit 3 Sides Alarm or Limit 3 Hysteresis Alarm 3 Logic Alarm 3 Latching Alarm 3 Silencing Alarm 3 Message Analog Output 3 Units Analog Output 3 Scale Low Analog Output 3 Scale High Output 3 Retransmit Source Output 3 Retransmit Low Scale Output 3 Retransmit High Scale Output 3 Retransmit Offset Input Error Latching Upper Display Look Lower Display Look Modbus Device Address Baud Rate Lockout Note For FM Approval the parameter must be set to 3 or the limit must be remotely mounted to restrict casual user adjust ment Watlow Series SD Limit 21 Chapter 3 Keys and Displays Programming Page Overview PRSE The Programming Page determines what parameters the user wants to appear in the Operations Page Se lect a parameter for any of the 16 Programming Page locations P1 to P16 These now appear in the Opera tions Page All 16 locations have parameters selected as defaults To go to the Programming Page hold down the RESET key then press the Advance Key amp and hold both down for about six seconds Press the Advance Key to move through the pa rameter prompts Press the Up or Down Q keys to change the pa rameter value Press the RESET Key at any time to return to the Home Page Note The hardware configuration
33. 1 is in the low Indicate a low limit at output 1 Limit 1 limit condition Limit High 1 Status None 0 NA 30 R Output 1 is in the high Indicate a high limit at output 1 Limit 1 limit condition Limit Low 2 Status None 0 NA 31R Output 2 is in the low Indicate a low limit at output 2 Limit 1 limit condition Limit High 2 Status None 0 NA 32R Output 2 is in the high Indicate a high limit at output 2 Limit 1 limit condition Alarm Low 2 Status None 0 NA 31R Output 2 is in the low Indicate a low alarm at output 2 Alarm 1 alarm condition Alarm High 2 Status None 0 NA 32R Output 2 is in the high Indicate a high alarm at output 2 Alarm 1 alarm condition Limit Low 3 Status None 0 NA 33R Output 3 is in the low Indicate a low limit at output 3 Limit 1 limit condition Limit High 3 Status None 0 NA 34R Output 3 is in the high Indicate a high limit at output 3 Limit 1 limit condition Alarm Low 3 Status None 0 NA 33R Output 3 is in the low Indicate a low alarm at output 3 Alarm 1 alarm condition Alarm High 3 Status None 0 NA 34R Output 3 is in the high Indicate a high alarm at output 3 Alarm 1 alarm condition Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parame ters are in F through Modbus Low register numbers contain the two higher bytes high register numbers contain the two lower bytes of the four byte integer Deci
34. 2 N 7 Og d d Mor 63 EERE H B x D 12 7 mm m 50 in 0 50 in Model Number minimum Customer Front Panel ON 0 48 mm 0 019 in maximum gap between controller front and customer front panel Contact your local Greenlee supplier for the appropriate punch kit and cutout tools required for rapid mounting 1 16 DIN Series SD Limit Dimensions Front Side 100 2 mm 52 1 mm 2 05 in 45 0 to 45 5 mm 1 77 to 1 79 in m Panel Cutout 45 0 to 45 5 mm 52 1mm 1 77 to 1 79 in 2 05 in Panel Thickness 1 5 to 9 5 mm 0 060 to 0 375 in 13 7 mm Customer Front Panel 0 54 in n 0 6 mm 0 025 in maximum gap between 7 9 mm controller front and customer front panel 0 31 in minimum Contact your local Greenlee supplier for the appropriate punch kit and cutout tools required for rapid mounting Watlow Series SD Limit 4 B q 8 6 mm 0 34 in 9 3 mm 0 37 in Back 47 2 mm 1 86 in 29 3 mm 1 15 in Back 50 1 mm 1 97 in LI 59 2 mm 2 33 in Chapter 2 Install and Wire 1 8 DIN Series SD Limit Dimensions Front horizontal 92 0 to 93 0 mm 3 62 to 3 65 in 99 8 mm 3 93 in Panel Cutout Panel Thickness 12710 1791n 1 52 to 9 53 mm 0 060 to 0 375 in 52 8 mm 2 08 in 31 8 mm Front vertical 1 25 in minimum
35. 485 option directly supports communication with up to 32 devices on a network or up to 247 devices using a 485 repeater To view or change controller settings with a personal computer you need to run software that uses the Mod bus RTU protocol to read or write to registers 1n the controller See the parameter tables for information about the Modbus registers These registers contain the parameter values that determine how the controller will function and current input and output values of the sys tem The address in the tables have been offset by sub tracting 40 001 from each one Basic communications settings must first be config ured on the controller in the Setup Page Match the Baud Rate to that of the computer and select a unique Address for each Series SD Setting Up a Modbus Network 1 Wire the controllers The Series SD uses an EIA TIA 485 serial port which 1s not typically found in a PC but can be found on many PLC s The type of port found in a typical PC is an EIA 232 port Internal 485 PC ports are available but the most common way for a PC to com municate using a EIA 485 port is with an EIA TIA 232 to EIA TIA 485 converter The advantages of EIA TIA 485 are that it is less susceptible to noise and it allows a PC or PLC to com municate with multiple controllers on the same port to form a network It is important when using EIA TIA 485 to install the termination resistors along with pull up and pull
36. 51 Power 50 Power Supply 17 Power Type 35 Process Alarms 42 Process Decimal Places 24 Process Output 3 Cal Procedure 38 Process Scale High 25 Process Scale Low 25 Process Value 23 Programming Page Overview 22 Quencharc 13 R C suppressor 13 Removal 6 1 16 DIN 7 1 32 DIN 6 1 4 DIN 9 1 8 DIN 8 RESET Key 19 Restore Factory Calibration 34 Restore User Settings 34 Restoring Factory Calibration 38 Right Display 19 RTD Input Cal Procedure 37 RTD 15 ohm 35 RTD 380 ohm 35 Sampling rate 49 Save User Settings 34 Saving and Restoring User Settings 40 Appendix Sensor Selection 41 Sensor Type 24 Serial Number 1 35 Serial Number 2 35 Set Point High Limit 25 42 Set Point Low Limit 25 42 Setting Up a Modbus Network 44 Setup Page 24 Setup Page Overview 21 Software Build Number 35 Software ID 35 Software Version 35 Specifications 49 stop bit 44 Temperature Decimal Places 24 Temperature Units 24 31 Terminals 50 Thermocouple Input Cal Procedure 37 Thermocouple Linearization 24 Thermocouple 0mV 35 Thermocouple 32 F 35 Thermocouple 50mV 35 Troubleshooting 46 Units Scale High 25 Units Scale Low 25 Up and Down Keys 19 Upper Display 19 Upper Display Look 28 Voltage Process Input Cal Procedure 37 WATCONNECT 44 Watlow web site 44 Wiring 11 1 to 10V Process Input 12 4 to 20 mA Process Input 13 485 Converter 17 High Voltage AC Power Wiring 11 Low Voltage AC Power Wiring 11 Output 1 Mechan
37. 5P2 Alarm 2 Message off 0 no message 1 125RW L glissetto P RL dSP2 Displays an alarm message when an on 1 message alarm is active Qt 3 Output 3 Function OFF Off 172 R W Output 3 is installed Ot 3 Set Output 3 function P AL Process Alarm 1 L IPA Limit 2 c P E Retransmit 6 Active only if Output 3 is a process output SD fcx 1543 Output 3 Limit Sides both 0 both high and 41RW Gt Jis set toll IPA LSd3 Selects Output 3 limit low sides active h 9h 1 high side active L obd 2 low side active hu63 Output 3 Hysteresis 0 0 to 999 0 1 0 136 137 16 Jlis set to hyS3 Set the hysteresis for the output This de 0000 to 999000 R W or L 1701 termines how far into the safe region the input needs to move before the output can be cleared Output 3 Logic closed on alarm 0 190R W Bt Jlis set to PAL Lgc2 Select the output condition in the alarm open on alarm 1 state LEE3 Alarm 3 Latching off 0 188RW Dt g3lissetto P RL LAt3 Turn alarm latching on or off on 1 6 13 Alarm 3 Silencing off silencing 0 139 QE Jis set to P AL SiL3 Turn alarm silencing on or off on 1 silencing d5P3j Alarm 3 Message off 0 no message 1 140 RW L Jlis set to Pe RL dSP3 Displays an alarm message when an on 1 message alarm is active A03U Analog Output 3 Units milliamperes 0 0 176RW Output 3 is a process AO3 U Set the analog process output un
38. DA485L CMC Connecticut Micro Computer Inc 1 800 426 2872 http www 2cmc com NOTE The CMC converter requires an external power supply when used with a laptop computer el EIA TIA 485 B Converter Figure 17c Wiring bias and termination resistors Controllers must be wired in a daisy chain configuration Add a 1200 termination resistor on the last controller Watlow Series SD Limit 17 Chapter 2 Install and Wire Notes Watlow Series SD Limit 18 Chapter 2 Install and Wire 3 Keys and Displays 1 32 DIN 1 16 DIN 1 8 DIN Horizontal WATLOW LIMIT SD WATLOW LIMIT SD WATLOW LIMIT SD 1 2 1 2 3 S 1 8 DIN Vertical 1 4 DIN WATLOW LIMIT SD 10 20 3 1 2 3 WATLOW LIMIT SD Upper Display Left Display on 1 32 DIN Indicates the process in the Home Page or the value of the parameter in the lower display in other pages rameter whose value appears in the upper display O Advance Key RESET Key o l Up and Down Advances the lower dis e Returns to the Home Keys play through parameter Page prompts Resets a latching In the Home Page ad alarm justs the limit set point e Resets a latching in In other pages changes put sensor error the upper display to a e Resets the limit higher or lower value e Silence an alarm Note After 60 seconds with no key presses the controller reverts to the Home Page Lower Display Right Display on 1 32 DIN Indicates the set point
39. I Parameter Location 12 LC F 15 Temperature Units nong 59RW PAR Setup Page P13 Parameter Location 13 URL 16 Calibration Offset 0 60 R W P 14 Parameter Location 14 nont 0 61 R W PIS Parameter Location 15 nont 62 R W P 15 Parameter Location 16 63RW Note All Parameter locations have the same range of possible values Watlow Series SD Limit 32 Chapter 7 Programming Programming Page Example An oven manufacturer wants the user s of their ovens to have easy access to the Series SD Limit parameters They also want to limit access to other parameters they do not want them to change This can be achieved by customiz ing the Operations Page The Programming Page configuration determines which parameters appear on the Opera tions Page The Series SD Limit controller has 16 Programming Page locations P1 to P16 The oven manufacturer wants only these parameters to appear on the Operations Page e Fahrenheit Celsius e Alarm 2 Low Set Point e Alarm 2 High Set Point e Modbus Address To go to the Programming Page press the Advance and RESET keys for six seconds from the Home Page will appear in the upper display and in the lower display e Press the Advance Key to move through the parameter prompts Press the Up or Down Q keys to change the parameter value Press the Infinity Key at any time to return to the Home Page On the Programming Page select the following settings ReoLo thru
40. Series SD User s Manual LIMIT 50 Limit Controller Cf TOTAL CUSTOMER SATISFACTION 3 Year Warranty E LOW 1241 Bundy Boulevard Winona Minnesota USA 55987 Phone 1 507 454 5300 Fax 1 507 452 4507 http www watlow com SS laid Registered Company Winona Minnesota USA 0600 0041 0005 Rev B Made in the U S A November 2004 15 00 CAUTION or WARNING 7 Electrical Shock Hazard CAUTION or WARNING Safety Information We use note caution and warning symbols throughout this book to draw your attention to impor tant operational and safety information A NOTE marks a short message to alert you to an important detail A CAUTION safety alert appears with information that is important for protecting your equip ment and performance Be especially careful to read and follow all cautions that apply to your appli cation A WARNING safety alert appears with information that is important for protecting you others and equipment from damage Pay very dose attention to all warnings that apply to your application The safety alert symbol an exdamation point in a triangle precedes a general CAUTION or WARNING statement The electrical hazard symbol O a lightning bolt in a triangle precedes an electric shock hazard CAUTION or WARNING safety statement Technical Assistance If you encounter a problem with your Watlow controller review your configuration information t
41. W V 500 to 10000 10 00 to 50 00 mV if 10 00 mV 331 332 SEnlissetto FP Tul is set to R W mV 10000 to 50000 Process Scale High 1 00 to 20 00 mA if 20 00 mA 75 76 SEnjis set to MAA Sc hi Set the high scale for process inputs is set to R W mA 1000 to 20000 0 50 to 10 00V if GE a lis 5 00V 79 80 SEn is set to uoL E set to RW V 500 to 10000 10 00 to 50 00 mV if 5EFn 50 00 mV 333 334 GE nis set to is set to R W mV 10000 to 50000 P ILE Process Input Low Error 1 00 to 10 00 mA 1 00 mA 325 R W GE nl is set tol MIA P1 LE Set the low process value that will cause 100 to 1000 mA an error to occur for the process input 0 50 to 5 00 V 0 50 V 397 R W SEn is set toluol E 050 to 500 V 5 00 to 25 00 mV 500mV 329R W 2218 set tol Pou 500 to 2500 mV two decimal places implied for Modbus P IHE Process Input High Error 10 00 to 20 00 mA 20 00 mA 326 R W 6 Enlis set to MAA P1 HE Set the high process value that will cause 1000 to 2000 mA an error to occur for the process input 5 00 to 10 00 V 10 00 V pin R W 6 Elis set toluol E 25 00 to 50 00 mV SU qum r lis set tol Mu 2500 to 5000 two decimal places implied for Modbus Units Scale Low 1999 to 9999 1999 81 82 is set to rg Lo Set the low range for process input units 1999000 to 9999000 R W or uoLEt Set precision with BgE Process Decimal Places Units Scale High 1999 to 9999 9999 83 84 is set to rg hi Set the hi
42. al parameters to set such as number of data bits parity and stop bits For Watlow controllers using mod bus these should always be set at 8 data bits no parity and 1 stop bit This is often written as 8N1 Some soft ware packages may give the option to control the activi ty of the RTS CTS and DTR lines which are sometimes used by EIA 232 to EIA 485 converters On packages where the Modbus registers for the controller need to be defined these values can be entered at this time Be sure to account for offsets Chapter 9 Features 6 Test the communications Once communications is configured test the link to the controller for verification that everything is wired and configured properly Check the wiring and configura tions if things aren t working One misplaced wire or one incorrect setting will keep communications from work ing When using an EIA 232 to EIA 485 converter be sure to follow the configuration instructions provided with the converter as some may require special jumper switch settings external power supply require ments or special signals from the software Some soft ware packages have built in routines for testing the com munications or use Comm6 to help diagnose problems 7 Start communications with the controller With the communications successfully verified the software 1s now ready for use with the controller The above guidelines are the general steps to establishing communications with contr
43. and Wire 4 Installation 6 1 16 DIN 7 1 32 DIN 6 1 4 DIN 9 1 8 DIN 8 Instant HMI 45 IP65 NEMA 4X seal 6 IrDA 45 Isolation 17 Isolation Blocks 11 Keys and Displays 19 Left Display 19 Limit 1 High 30 Limit 1 High Set Point 23 Limit 1 Hysteresis 26 31 Limit 1 Low 30 Limit 2 High 30 Limit 2 Low 30 Limit 3 High 30 Limit 3 Low 30 Limit High 1 Status 23 Limit High 2 Status 23 Limit High 3 Status 23 Limit Low 1 Status 23 Limit Low 2 Status 23 Limit Low 3 Status 23 Limit or Alarm Hysteresis 43 Limit Tripped Operation 20 Lockout 29 Lockout for FM Approval 21 29 41 Lower Display 19 Lower Display Look 28 Maximum Recorded Ambient Temp 32 Minimum Recorded Ambient Temp 32 Modbus 44 Modbus Device Address 29 31 Modbus RTU Protocol 44 Model Number information 51 National Electric NEC 11 52 Operating Environment 50 Operating Ranges 49 Operations Page 40 Operations Page Overview 20 Operations Parameters Table 30 Ordering Information 51 Output 1 Function 25 Output 1 Limit Sides 25 Output 1 Type 34 Output 2 Function 26 Output 2 Hysteresis 26 31 Output 2 Logic 26 Output 2 Sides 26 Output 2 Type 35 Output 3 Calibrate 1 0 Volt 36 Output 3 Calibrate 16 0 mA 36 Output 3 Calibrate 4 0 mA 36 Output 3 Calibrate 9 0 Volt 36 Output 3 Function 26 Output 3 Hysteresis 27 31 Output 3 Logic 27 Output 3 Process Value 34 Output 3 Sides 26 Output 3 Type 35 Output Types 48 Overview 2 Parity 44 PDA software 45 PID controller 3
44. cases the OEM manufacturer may set most of these parameters because the equipment operates with little variation 1 e always the same limit and alarm set points always the same heat load In equipment where demands could vary significantly the OEM may leave parameter adjustments to the end user 1 many different temperature settings different heat loads The Operations Page on the Series SD limit 1s cus tomizable so that only the parameters that the operator may need to use will appear in the display Settings that won t need to be adjusted can be hidden from the operator using the Programing Page For more details on the Programing Page see Chapter Eight Features For details on configuring parameters in the Opera tions Page see Chapter Six Operations Parameters Tables Once you have verified the limit is operating proper ly be sure to document all of your parameter settings Each parameter table has a settings column for you to write in your values Chapter 1 Overview Install and Wire 1 32 DIN Series SD Limit Dimensions Front Top 100 9 mm 3 98 in 53 6 mm 2 11 in 45 0 to 45 6 mm 1 77 to 1 79 in Ridges PP Tabs with Teeth AN Panel Cutout HT Ose p T Tin Panel Thickness 5 Oni Lalin 1 5 to 9 5 mm 81 to 0 89 In 0d N Ge 0 060 to 0 375 in e
45. communications Watlow Series SD Limit 36 Chapter 8 Factory Calibrating the Series SD Limit Warm up the unit for 20 minutes To reach the cali bration prompts enter the Factory Page by holding down the Up Key and Down Key Q for six seconds Once in the Factory Page F RC t use the Advance 6 key to select a prompt The last prompts on the Factory Page are the input and output calibration prompts You can restore the original factory calibration with Restore Factory Calibration Factory Page Note InfoSense should be turned off while verifying calibration of the controller with a calibration source Thermocouple Input Procedure Equipment Type J reference compensator with reference junc tion at 0 C 82 F or type J thermocouple calibra tor to 0 C 32 F e Precision millivolt source 0 to 50 mV minimum range 0 002 mV resolution Input Setup and Calibration 1 Connect the correct power supply to terminals 1 and 2 see Chapter Two 2 Connect the millivolt source to terminals 11 and 10 with copper wire 3 Enter 50 00 mV from the millivolt source Allow at least 10 seconds to stabilize Set Thermocouple Cal ibration 50 mV tol 9ES Press the Ad vance Key to store 50 000 mV input and move to the next prompt 4 Enter 0 000 mV from the millivolt source Allow at least 10 seconds to stabilize Set Thermocouple Cal ibration 0 mV tol 9ES Press the Ad vance Key to store 0 000 mV input
46. condition 1s over Configure alarm outputs in the Setup Page before setting alarm set points Process Alarms A process alarm uses one or two absolute set points to define an alarm condition Enable the process alarm type with the Setup Page parameters View or change process alarm set points with the Operations Page parameters Chapter 9 Features Alarm Set Points The alarm high set point defines the process value or temperature that will trigger a high side alarm It must be higher than the alarm low set point and lower than the high limit of the sensor range The alarm low set point defines the temperature that will trigger a low side alarm It must be lower than the alarm high set point and higher than the low limit of the sensor range View or change alarm set points with the Operations Page parameters Limit or Alarm Hysteresis A limit or alarm state is triggered when the process val ue reaches the limit or alarm high set point value or limit or alarm low set point Hysteresis defines how far the process must return into the normal operating range be fore the limit or alarm output can be cleared Hysteresis is a zone inside each limit or alarm set point This zone 1s defined by adding the hysteresis value to the low set point or subtracting the hysteresis value from the high set point View or change limit or alarm hysteresis for output 1 2 or 3 Hysteresis h 965 h 959g or h 95 3 Setup Page
47. d Low Range 42 ALANGAN ee ee eae eh ee 42 Process AlarmS acc a hashes A eremo ANG gad ee 42 Alarm Set Points 43 Alarm Hysteresis 43 Alarm EStehlfig cR s ced Pon eas 43 Alarm Silencing 43 misura TIT RT 43 Communications 43 OVEMNIEW wd saa a a A a d 43 Setting Up a Modbus Netvvork 44 Infrared Data Communications 45 Troubleshooting aba 46 Error Messages 48 Watlow Series SD Limit 39 Chapter 9 Features Saving and Restoring User Settings Recording setup and operations parameter settings for future reference is very important If you uninten tionally change these you will need to program the cor rect settings back into the controller to return the equipment to operational condition After you program the controller and verify proper operation use to save the settings into a special section of memory If the settings in the controller are altered and you want to return the controller to the saved values use to recall the saved settings This version has two sets of user settings To save the Setup and Operations parameters 1 Ensure all the settings that you want to store are already programmed into the Setup Page Program ming Page and Operations parameters From the Home Page press the Up and Down O keys to
48. d stabilize within one second Repeat until the volt ammeter reads 4 00 mA 0 1mA Press the Advance Key to store the value and move to the next prompt At Output 3 Calibrate 16 mA f 3 16 select and press the Advance Key The current output value appears in the upper display Press the Up or Down Key Q to adjust the upper display value to match the value from the volt ammeter The unit should stabilize within one second Repeat until the volt ammeter reads 16 00 mA 0 1 mA Press the Advance Key to store the value and move to the next prompt Rewire for operation and verify calibration Restoring Factory Calibration Press the Up O and Down keys together for six seconds until F A E appears in the upper display and P 8 9E appears in the lower display Press the Advance Key to step through the pa rameters until the appears Use the Up Key Q to select in the upper display Press the RESET Key to exit the Factory Page Chapter 8 Factory 9 Features Saving and Restoring User Settings 40 Operations Page 40 Inputs INFOSENSE Sensing 40 Calibration Offset 41 Filter Time Constant 41 Sensor Selection 41 ACCESS Lockout ie B daa nG 41 Set Point Lovv Limit and High Limit 42 Process Input High and Low Scale 42 High Range an
49. data is lost when power is re moved Register 17 defaults to a value of 1 after each power cycle writing values to EEPROM again You must write a 0 to register 17 upon power up to prevent data from being written to EEPROM Watlow Series SD Limit 45 Infrared Data Communications IDC Infrared Data Communications is an option available on the 1 16th 1 8th and 1 4 Din Series SD products This option supports wireless communications with PDAs personal digital assistants or other devices equipped with infrared communications that support the IrDA 1 0 Standard IrDA is an acronym for the Infrared Data As sociation www irda org A PDA or other master device communicates with the SD Series using Modbus ASCII via IRCOMM over IrDA IDC supports wireless commu nications through transparent material to a distance of no less than one meter between devices at a maximum angle of 15 Degrees IDC can support complete Series SD parameter con figuration and operation The actual user interface or configuration is dependent on the master device PDA application software A source for this software is Instant HMI from Software Horizons For more information go to www InstantHMI com or call 978 670 8700 Advantages of this feature include automated logging of key process variables increased accuracy and ease of use for recipe or configuration setups and easier con troller data exchange in physically restricting environ ments such as semic
50. down resistors to ensure reliable communi cations Some newer PCs may only have a USB port USB to serial adapters usually EIA TIA 232 are available from a variety of different PC vendors Some companies offer adapters to convert from USB to EIA TIA 485 directly 2 Configure each controller s communications pa rameters in the Setup Menu using the front panel Only a couple of communications parameters need to be configured on the controller Baud Rate and Modbus Address The choices for Baud Rate are 9600 bps 19200 bps or 38400 bps 38400 baud allows for the fastest com munication For compatibility with other devices reduc ing noise susceptibility or increasing communications Watlow Series SD Limit 44 distance 9600 bps could be chosen When using EIA TIA 485 all devices connected to that port must use the same Baud Rate The Modbus address is used to identify each controller on the network With EIA TIA 485 every controller on the network must have a unique address 3 Choose a device to communicate with the con troller The controller can communicate with devices such as a computer running a software program a PLC Pro grammable Logic Controller or an OIT Operator Inter face Terminal Whichever device is chosen it needs to be able to communicate using the Modbus RTU Protocol OITs would need to be ordered with Modbus RTU support PLCs would either have Modbus RTU as a standard feature or it can be mad
51. e alternates in lower display The corresponding output indicator light is on Adjusting the limit set point value Adjust the limit set point 1n the Operations Page Limit set points only appear if they are active and they have been selected to appear due to settings in the Program mable Page To adjust the limit set point 1 Be sure the display is at the Home Page If you are in any other page press the RESET Key 2 Press the Advance Key to step into the Opera tions Page 3 Continue pressing the Advance Key until the de sired limit set point parameter appears in the lower display The limit value appears in the upper dis play 4 Press the UP Key to increase the value or the DOWN Key Q to decrease the value 5 Press the Advance Key to step to other limit set point parameters and repeat steps 3 and 4 Press the RESET Key to return to the Home Page Note The parameter can lock the ability to adjust view the settings in the Operation Page If you are have trouble adjusting the limit set points check the setting in the Setup Page Watlow Series SD Limit Operations Page Overview The Operations Page contains parameters accessed during normal day to day operation The Series SD provides a patented user definable menu system al lowing the user to customize the Operations Page con tents To go to the Operations Page press the Advance Key once from the Home Page Press the Advance Key to move thr
52. e available with an I O module On a computer the software package to be used would need to have the Modbus RTU capability 4 Select a software package for the computer Select the software package based on what is re quired from the application For basic communications such as reading the process value or setting the set point Watlow has the Comm6 software package This is mainly used for diagnostics and basic communica tions When purchasing a third party software package be sure to look for a package that is Modbus RTU compati ble or has Modbus RTU drivers Most third party pack ages require you to specify the Modbus registers of the controller to setup the package Another option is to custom create a software pack age Using the Modbus register and data information in this user s manual a software package can be created and tailored to the desired application To assist in ap plication development Watlow offers WATCONNECT M which is a Windows based software library for Modbus RTU communications For further information on the WATCONNECT software library or to download the Comm0 software go to the Watlow web site at http www watlow com 5 Configure the software s communications parameters A software package be it software for a computer a PLC or an OIT will need to be configured just as the controller was configured setting the Baud Rate and Address to match The software package may have ad dition
53. etermine when alarms messages will display and the proper response to an alarm message Adjust the limit or alarm settings to be correct for the application See error messages Press the RESET Key to unlatch a limit or alarm Adjust the limit or alarm settings to be correct for the application See the Features Chapter for information on alarm silencing Adjust the limit or alarm settings to be correct for the application Check thermocouple connections All thermo couple connections including thermocouple ex tension wire must maintain the correct polari ty for proper operation Check the settings of the analog output scale low and scale high parameter Setup Page See Setup and Operation chapters to deter mine when parameters should appear Set the correct level of lockout for access Set up Page Select the desired parameters for the Program ming Page Set the correct level of lockout for access Set up Page Note For FM Approval the parameter must be set to 3 or the limit must be mounted re motely to restrict casual user adjustment Watlow Series SD Limit 47 Chapter 9 Features Indication Input error Ambient temperature error Checksum error Watlow Series SD Limit Error Messages Probable Cause s The sensor may be improperly wired Sensor wiring may be reversed shorted or open The input may be set to the wrong sensor or the controller may not be calibrated
54. evices that may re quire isolation Power Supply Many converters can be powered up either through the signals of a serial port or through an external power supply Because some computers such as lap tops do not always provide enough power to supply the converter we recommend using an external pow er supply with specifications as recommended by the converter manufacturer Isolated converters may re quire two supplies Biasing and termination If the system does not work properly it may need termination resistors at each end of the network A typical installation would require a 120 ohm resistor across the transmit receive terminals 3 and 4 of the last controller in the network and the converter box Pull up and pull down resistors may be needed at the converter to maintain the correct voltage during the idle state The pull up resistor is connected be tween the positive of the DC supply and the T R terminal The pull down resistor is connected be tween the negative of the DC supply and the T R terminal 485SD9TB Watlow p n 0830 0473 0001 6 ft comms cable Watlow p n 0830 0473 0003 Watlow p n 0830 0473 0002 Figure 17a B amp B Converter Isolated converter 485019TB Non isolated converter 485SD9TB B amp B Electronics Manufacturing Company 815 433 5100 http www bb elec com ADA485L 7 ft comms cable Watlow p n 0219 0217 0000 Figure 17b CMC Converter Non isolated converter A
55. gether for six seconds until appears in the upper display and PA 9E appears in the lower display Press the Advance Key to step through the prompts until the prompt appears Use the Up Key Q to select SEE I or 65Et 9 in the upper display 5 Press the RESET Key to exit the Factory Page Note Only perform the above procedure when you are sure that all the correct settings are programmed into the controller Saving the settings overwrites any previously saved collection of settings Be sure to document all the controller settings To restore a collection of saved settings 1 Press the Up and Down Q keys together for six seconds until appears in the upper display and PR 9E appears in the lower display Press the Advance Key to step through the menu until the UJ 5 r r prompt appears Use the Up Key Q to select or SEE lor E lin the upper display Press the RESET Key to exit the Factory Page Operations Page Watlow s patented user defined menu system improves opera tional efficiency The user defined Operations Page provides you with a shortcut to monitor or change the parameter values that you use most often You can go directly to the Operations Page from the Home Page by pressing the Advance Key 4 You can create your own Operations Page with as many as 16 of the active parameters from the list in the Keys and Displays chapter When a parameter normally located in the Setup Page is placed
56. gh range for process input units 1999000 to 9999000 R W or Got E Set precision with Pu Process Decimal Places Set Point Lovv Limit Min operating range of Min operat 231 232 Always active SP Lo Set the low range for the set point sensor to 0 100 if ing range J R W ther is set to 328 to 0 100 if is set to 1999 to 0 001 if is set to MIA iuoL t or Mu Set precision with BgE Process Decimal Places PU type mocouple 328 935 236 R W RTD 999 MAA 239 240 iuoL E and R W mA V or mV Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parame ters are in F through Modbus Low register numbers contain the two higher bytes high register numbers contain the two lower bytes of the four byte integer Decimal precision is implied at three decimal places unless otherwise noted Watlow Series SD Limit 29 Chapter 5 Setup Display Parameter Name Description Settings Range Integer values for Modbus in parentheses Default Modbus less 40 001 offset Read Write Appears if SP hi CAL Ftc t Ftr E ca m Se ct rr Gu alm SB m Un a 1542 LSd2 hyS2 Lgc2 Set Point High Limit Set the high range for the set point Calibration Offset Offset the input reading Input Filter Select filtering action
57. hapter 3 Keys and Displays 4 Home Page Press the RESET Key at any time to go to the Home Page Depending upon the controller s status you will see some combination of the parameters listed below Normally you will see the Process Value in the upper display and the Limit 1 High Set Point in the lower display You cannot adjust Home Page parameters from the front panel keys See Home Page Overview in Chapter Three After 60 seconds with no key presses the controller reverts to the Home Page Display Parameter Name Range Default Modbus Appears if Description Integer values for Modbus RA in parenthesis Read Write Measured Process Value 1999 to 9999 NA 20 21R There is no input error Value Displays the current process value in the degrees F or units and is set to upper left in 1 32 DIN display 1999000 to 9999000 FF or Cont Measured Filtered Process Value 1999 to 9999 NA 22 23R There is no input error Value Displays the current filtered process val degrees F or units and is set to ue in the upper left in 1 32 DIN display 1999000 to 9999000 or both Set Value Limit 1 High Set Point SPL oltol6Ph 75 104 105 t Sd lis set to Displays the high limit set point value R W or h 9h for Output 1 in the lower right in the 1 32 DIN display Input Error None 0 NA 24R There is an analog in Indicate an input error state l Error 1 put error Limit Low 1 Status None 0 NA 29 R Output
58. he Phillips screwdriver unscrew the four screws on the mounting bracket until they disengage from the retention collar 2 Squeeze the release tabs on the long sides of the mounting bracket and slide the mounting bracket off the back of theLimit Remove the retention collar and push the limit out of the panel cutout Be ready to support the limit as it comes through the front panel 8 Chapter 2 Install and Wire A Caution Follow the installa tion procedure exactly to guarantee a proper IP65 NE MA 4X seal Make sure the gasket between the panel and the rim of the case is not twisted and is seated properly Failure to do so could result in damage to equipment Note Be careful not to over tighten the screws This may cause the mounting bracket to fail If the front bezel is touching the front panel the mounting bracket is too tight Installing and mounting requires access to the back of the panel Tools required one 2 Phillips screwdriver Tools required e one 2 Phillips screwdriver e one flat head screwdriver Watlow Series SD Limit Installing the 1 4 DIN Series SD Limit Retention Collar Mounting Bracket Gasket Bezel Case Terminal Cover Rarnaval Arrows indicate the direction of pull to remove the connectors Make the panel cutout using the mounting template dimensions in this chapter Check that the rubber gasket lies in its slot at the back of the bezel Insert the limit
59. he two screws until the gap between the bezel and panel surface is 0 6 mm 0 024 in maximum Make sure that you cannot move it back and forth in the cutout If you can you do not have a proper seal Do not over tighten Over tightening could damage the mounting bracket Removing the 1 16 DIN Series SD Limit 1 Remove the terminal cover and all of the wiring connectors from the back of the limit While supporting the limit with one hand use the Phillips screw driver to unscrew the two screws on the mounting bracket until the tips are flush or past the end of the hooks 2 Squeeze the two screws together on the mounting bracket to release the hooks from the slots and slide it off Remove the retention collar and push the limit out of the panel cutout Be ready to support the limit as it comes through the front panel 1 Chapter 2 Install and Wire A Caution Follow the installa tion procedure exactly to guarantee a proper IP65 NE MA 4X seal Make sure the gasket between the panel and the rim of the case is not twisted and is seated properly Failure to do so could result in damage to equipment Note Be careful not to over tighten the screws This may cause the mounting bracket to fail If the front bezel is touching the front panel the mounting bracket is too tight Installing and mounting requires access to the back of the panel Tools required one 2 Phillips screwdriver Tools required one 2 Phillips screwd
60. he user calibration parameters 1 with the factory calibration parameters Restore User Settings no 0 0 200 Always active Usrr Restores customer configured settings SEE 1 D Two sets of user settings are available SELO 2 Save User Settings no 0 0 201hR V Always active USr S Saves customer configured settings Two SEE 11 1 sets of user settings are available 2 2 dFLt Default Parameters no 0 0 198 Always active dFLt Reset all parameters to their gES 1 default values OEY 1 Output 1 Type mech relay 2 193 R Always active O ty1 Displays the hardware type for Output 1 mech relay Watlow Series SD Limit 34 2 Chapter 8 Factory Display Parameter Name Range Default Modbus Appears if Description Integer values for Modbus portu in parentheses Read Write Gt 9e Output 2 Type nani none 0 194 R Always active O ty2 Displays the hardware type for Output 2 dC DC open collect 1 c LAY mech relay 2 65 solid state relay 3 communications 5 0 43 Output 3 Type non none 0 0 195 R Always active O ty3 Displays the hardware type for Output 3 dC DC open collect 1 c L AY mech relay 2 6 6 solid state relay 3 Pr oc process 4 5 id Software ID 0 to 9999 NA 10 R Always active Sid Displays the software ID number Software Version 00 00 to 99 99 NA 11R Alvvays active IS VE
61. iated Field Immunity EN 61000 4 4 1995 Electrical F ast T ransient Burst Immunity EN 61000 4 5 1995 With Al 1996 Surge lmmunity EN 61000 4 6 1996 Conducted Immunity EN 61000 4 11 1994 Voltage Dips Short Interruptions and Voltage Variations Immunity EN 61000 3 2 ED 2 2000 Harmonic Current Emissions EN 61000 3 3 1995 With A1 1998 Voltage Fluctuations and Flicker 73 23 EEC Low Voltage Directive EN 61010 1 1993 With A1 1995 Safety Requirements of electrical equipment for mea surement control and laboratory use Part 1 General requirements Raymond D Feller III Winona Minnesota USA Name of Authorized Representative Place of Issue General Manager November 2004 Title of Authorized Representative Date of Issue Signature of Authorized Representative How to Reach Us TOTAL CUSTOMER SATISFACTION 3 Year Warranty Your Authorized Watlow Distributor Corporate Headquarters in the U S Watlow Electric Manufacturing Co 12001 Lackland Road St Louis Missouri USA 63146 Telephone 1 314 878 4600 Fax 1 314 878 6814 Europe Watlow GmbH Industriegebiet Heidig Lauchwasenstr 1 Postfach 1165 Kronau 76709 Germany Telephone 49 0 7253 9400 0 Fax 449 0 7253 9400 44 Watlow France S A R L Immeuble Somag 16 Rue Ampere Cergy Pontoise CEDEX 95307 France Telephone 33 1 3073 2425 Fax 33 1 3073 2875 Watlow Italy S R L Via Meucci 14 20094 Corsico MI Italy Telephone
62. ical Relay 13 Output 2 EIA TIA 485 14 Output 2 Mechanical Relay 13 Output 2 Solid state Relay 14 Output 2 Switched DC 14 Output 3 Mechanical Relay 15 Output 3 Open Collector 16 Output 3 Process 16 Output 3 Solid state Relay 15 Output 3 Switched DC 15 RTD Input 12 Thermocouple Input 12 Watlow Series SD Limit 53 Appendix U mang e z A guum c CD AY 22 36 039 22 36 R 1G 22 36 03h 1 21 27 1 20 22 23 30 030 0 21 27 821 o 20 22 23 30 Be Y 1122 34 20 22 23 30 Ot 9g 22 34 AJL 0 20 22 23 30 BEY 3 22 34 APTA 22 34 Ge 1121 25 AE VA 22 34 2 21 26 AGE 3 22 34 QE 321 26 Addr 21 22 29 31 21 24 AP b 22 34 Pr 0922 AB 3U 21 27 1 dr 22 35 6b Aud 21 29 r 15 22 35 CAL 21 22 25 31 c 380 22 35 C F 21 22 24 31 c E S E 22 32 38 GELE 22 34 e Gh 1 21 25 d SP 2 21 26 c GL o 21 25 d SP J 21 27 6 6 L d 22 35 Jd SPL 22 34 G g E 21 24 E R b 20 23 GUE r 22 35 E c C 6 20 23 5 c h 1 21 25 E c in 20 23 6 c L o 21 25 F Ac E22 34 21 24 FL Er 21 25 GEE 24 Fer E 21 25 6 i d 22 35 HYS 1121 22 26 31 5 L 2 21 26 HYS2 21 22 26 31 6 L 2 21 27 h Y5 3 21 22 27 31 Gn 22 35 LE 21 27 Gn _ 22 35 I5 E a 21 24 SPA 4 21 25 1S P 1121 24 SPL 121 25 16 P 2 21 24 t OG 22 35 15 P 3 21 24 t c 3c 22 35 15 P 4 21 24 t c 5 22 35 L th 20 22 23 30 UN22
63. is limit to a power source and to electri cal sensors 0r peripheral de vices Failure to do so may re sult in damage to equipment and property and or injury or loss of life Spring clamp wiring connector note To insert the wire push the wire into the desired connection num ber and it should automatically lock into place To remove the wire press and hold the orange release tab with a small screw driver Pull the wire out of the connection Solid or tinned wire recommended Note To prevent ground loops isolation needs to be maintained from input to output when using switched DC or analog process outputs N WARNING Process input may not have sensor break protec tion Outputs can remain full on Check your input settings Watlow Series SD Limit Figure 12a Thermocouple Input all model numbers Thermocouples are polarity sensitive The negative lead usually red must be connected to terminal 11 e Input impedance 520 MO 10 11 eos ET HOLE 8 A BU LETT Figure 12b RTD Input 100 DIN curve 0 00385 Q Q C all model numbers Terminals 8 and 11 must be shorted for a two wire RTD For three wire RTDs the S1 lead usually white must be connected to terminal 10 e Nominal excitation current 390 uA 8110 Eu q qulciz s 2 wire RTD Jo 8 ET T s94 s 3 uire RTD Figure 126 to 10V dc Process Input all
64. its volts 1 output SD__ ___ F Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parame ters are in F through Modbus Low register numbers contain the two higher bytes high register numbers contain the two lower bytes of the four byte integer Decimal precision is implied at three decimal places unless otherwise noted Watlow Series SD Limit 27 Chapter 5 Setup Display Parameter Name Range Default Modbus Appears if Description Integer values for Modbus 20507 in parentheses Read Write Analog Output 3 Scale Low 0 00 to 20 00 mA 4 00 mA 177 178 Output 3 is a process O3 Lo Set the low scale for the process output if output is set to mA R W mA output 0000 to 20000 SD F 0 00 to 10 00V 0 00V 181 182 0000 to 10000 R W V if output is set to volts Analog Output 3 Scale High 0 00 to 20 00 mA 20 00mA 179 180 Output 3 is a process 03 hi Set the high scale for the process output if output is set to mA R W mA output 0000 to 20000 SD F 0 00 to 10 00V 10 00V 183 184 if output is set to volts R W V 0000 to 10000 Output 3 Retransmit Source Process Value 0 315 RW Output 3 is a process r3 S0 Set the control variable that the retrans Set Point 1 output SD F mit signal represents and is set to Output 3 Retransmit Low Scale 1999 0 to 9999 0 0 316 317 Output 3 is a process r3 Lo
65. ll Series SD limits are Factory Mutual approved The Series SD limit has a single universal input that accepts various thermocouples RTDs resistive temperature devices or process inputs See the Speci fications in the Appendix for further details The Series SD limit offers up to two outputs on the 1 32 DIN and up to three outputs on all others Out put 1 is always a mechanical relay operating as a latching limit output Any mechanical relay output can be configured as a latching limit output These can be configured as a low limit high limit or low high limit Outputs 2 and 3 can be also configured as latching or 102030 7 O LJ LI LJ nr 1 1 LI LI LI LI Control Input Infrared Configure Figure 2 Series SD limit inputs and outputs Watlow Series SD Limit non latching alarms Standard Series SD limit features include an IP65 NEMA 4X front panel rating CE compli ance dual four digit displays A low voltage model is also available Advanced features include Modbus EIA 485 serial communications to interface with PC software applica tions INFOSENSE technology that provides low cost high accuracy thermal sensing and infrared re mote communication for easy to use setup and moni toring Other operator friendly features include LED indi cators to aid in monitoring and setting up the con troller The Watlow Series SD limit automatically stores all information in non volatile memory a
66. m 3 93 1n 99 8 mm 3 93 1n Alarm Process 485 Comm Height 29 7 mm 1 17 in 52 1 mm 2 05 in 99 8 mm 3 93 1n 52 8 mm 2 08 in 99 8 mm 3 93 1n Note These specifications are subject to change without prior Appendix Ordering Information and Model Numbers S D EN J PE A DIN Sizes 3 6 8 90r4 1 32 DIN 1 16 DIN 1 8 DIN Vertical 1 8 DIN Horizontal 1 4 DIN me O CO 0 C2 Control Type L L Limit Control Power Supply Hor L H 100 to 240V ac L 24V x ac dc Output 1 J J Mechanical Relay Form A 2 Amp Output 2 A C K J or U A None C Switched DC K Solid state Relay Form A 0 5 Amp J Mechanical Relay Form A 2 Amp U EIA TIA 485 Modbus Communications Output 3 not available on 1 32 DIN A C K F or E A None C Switched DC Open Collector K Solid state Relay Form A 0 5 Amp F Universal Process E Mechanical Relay Form C 5 Amp Infrared comms options Aor R A None R Infrared Communications Ready not availak Display Colors and Custom options RG or RR RG Red Green RR Red Red Not available on 1 32 DIN UL approved PID control and PID profiling versions are available For more information go to www watlow com or contact your local Watlow representative Watlow Series SD Limit 51 Appendix Index Access Lockout 41 Active Output Indicator Lights 19 Address 44 Adjusting the limit set point value 20 Advance Key 19 Agency Approvals 50 Alarm 2 High 30 Alarm 2 La
67. mal precision is implied at three decimal places unless otherwise noted Watlow Series SD Limit 23 Chapter 4 Home D Setup Page To go to the Setup Page press both the Up O and Down Q keys for three seconds from the Home Page will appear in the upper display and will appear in the lower display e Press the Advance Key to move through the parameter prompts Press the Up or Down Q keys to change the parameter value e Press the RESET Key at any time to return to the Home Page display Display Parameter Name Settings Range Default Modbus Appears if Description Integer values for Modbus in parentheses Read Write Sensor Type kc 0 70 RW Always active SEn Set the analog sensor type ctd 1 pn 2 volt 3 PAL 5 Thermocouple Linearization J J 0 d D 6 0 71 R W is set tol tcl Lin Set the analog input thermocouple HKO PE 1 NPTII 7 linearization EJT 2 r R 8 EJE 3 615809 N 4 10 CIC 5 C F Temperature Units F Fahrenheit 0 40 RW is set to C F Set the temperature units for thermocou Celsius 1 ori c td ple and RTD inputs Temperature Decimal Places 1 0 0100 41RW is set to S dEC Set the decimal places for the displayed 1 or c td input value for thermocouple and RTD types Process Decimal Places 0 U 010 42R W is set to PdEC
68. ming selections deter mine what parameters appear in the Setup Page gt 4 Setup Page SEn Lin T ku un n re o Un n r o em ES AR n LO re o LO r A0 701 23 m un O re un D r N m m TN m tr n m m un dX uc un CI m fu re un fu r uc un fu re LO n Tu m 20 m fu Un E Pu Q un O fu C m m un Wy r uc un ro LO n Wy r 20 r Un Uy Q un uU 20 CI Uy Cj Lu re o c r 3 un MU re o 3 x Uu ry CI m c Q un O m un o 20 Q Q o 20 C Q m C Sensor Type Linearization Temperature Units Temperature Decimal Places Process Decimal Places InfoSense Enable InfoSense Point 1 InfoSense Point 2 InfoSense Point 3 InfoSense Point 4 Process Scale Low Process Scale High Process Input Low Error Process Input High Error Units Scale Low Units Scale High Set Point Low Limit Set Point High Limit Calibration Offset Enable Input Filter Filter Value Output 1 Function Limit
69. n 1 Connect the correct power supply to terminals 1 and 2 see Chapter Two Input 2 Connect the voltage source to terminals 11 and 9 4 of the controller 3 Enter 1 00V from the voltage source to the con troller Allow at least 10 seconds to stabilize Set In put Calibrate 1V tol 9ES Press the Ad vance Key to store the 1 00V input and move to the next prompt 4 Enter 9 00V from the voltage source to the con troller Allow at least 10 seconds to stabilize Set In put Calibrate 9V tol 9ES Press the Ad vance Key to store the 9 00V input and move to the next prompt 5 Rewire for operation and verify calibration Chapter 8 Factory Current Process Input Procedure Equipment Precision current source 0 to 20 mA range with 0 01 mA resolution Input Setup and Calibration E 5 Connect the correct power supply to terminals 1 and 2 see Chapter Two Connect the current source to terminals 11 and 8 4 Enter 4 00 mA from the current source to the con troller Allow at least 10 seconds to stabilize Set In put Calibrate 4 mA tol 9ES Press the Advance Key to store the 4 mA input and move to the next prompt Enter 16 00 mA from the current source to the con troller Allow at least 10 seconds to stabilize Set In put Calibrate 16 mA to 9E S Press the Advance Key to store the 16 mA input and move to the next prompt Rewire for operation and verify calibration P
70. n can be used with al ternating current ac voltage only Verify the output wiring Verify that power is applied to the output The output simply acts as a switch Verify the output parameter settings Chapter 9 Features Indication Getting limit message L ih i Lh iL Xh iL Lo iL eL ojoriL glo Getting alarm message Agh j Or AJh 1 Limit or alarm is occurring when it should not Limit or alarm output indication 1s incorrect Limit or alarm is not occurring when it should Controller s process value reading is decreasing but actual process is increasing Parameter s do not appear Cannot access Operation Page Cannot change the limit or alarm set point Probable Cause s The process value 1s beyond a limit set point The process value is beyond an alarm set point Limit or alarm settings are incorrect Input may be in an error condition Limit or alarm may be latched Limit or alarm settings are incorrect Alarm may be silenced Limit or alarm settings are incorrect Thermocouple polarity 1s reversed Analog voltage or analog current input scal ing is reversed or incorrect Parameter is not active Parameter lockout is active Operations Page is not configured properly Parameter lockout is active Corrective Action Determine when limit messages will display and the proper response to a limit message D
71. nd pro vides an additional back up for user selected settings For more information on these and all other prod uct features refer to the Features Chapter and the Ap pendix A Also available in a temperature controller version The 1 32 DIN limit comes only with a red left and green right display Not available in the 1 32 DIN size Output Ty Limit I ES output 2 LI Limit Alarm or Communications Output 3 Limit or Alarm Infrared Monitor 1 32 DIN cannot have an Output 3 Infrared option is not available on 1 32 DIN Chapter 1 Overview Features and Benefits Patented User Definable Menu System e Simplifies operator interface User Defined Default Settings Restores user defined controller settings INFOSENSE Technology e Improves sensor accuracy by a minimum of 50 INFOSENSE Technology e Improves sensor accuracy by a minimum of 50 Infrared Communications e Facilitates controller setup operation and moni toring Up to three outputs 1 32 DIN two outputs only Application versatility e Configuration flexibility Dual Displays on all models e Better monitoring of process changes Also available in an PID temperature controller version How to use the Series SD limit Before you use your Series SD limit it must be in stalled and configured correctly Which setup steps you need to perform will depend on how you will use it If you purchased the limit
72. nolo Sle Cee ETI Alarm High Set Point Alarm Hysteresis Temperature Normal Operating Range Alarm Hysteresis Alarm Low Set Point Low Side Alarm Range Time Alarm Latching A latched alarm will remain active after the alarm con dition has passed To clear a latched alarm press the RESET Key It can only be deactivated by the user An alarm that is not latched self clearing will deactivate automatically when the alarm condition has passed Turn alarm latching on or off with Alarm 1 2 or 3 Latching L AE 3 LAE gj or L Rt 3 Setup Page Watlow Series SD Limit 43 The alarm state begins when the temperature reaches the Alarm High Set Point Alarm High Set Point V Alarm Hysteresis Normal Operating Range The alarm state continues until the temperature drops to the Alarm High Set Point minus the hysteresis A latching alarm could be turned off by the operator at this point A non pam Low latching alarm would turn off Set Point Temperature Process Temperature automatically Time Alarm Silencing Alarm silencing has two uses 1 It is often used to allow a system to warm up after it has been started up With alarm silencing on an alarm is not triggered when the process tempera ture is initially lower than the alarm low set point The process temperature has to enter the normal operating range beyond the hysteresis zone to acti vate the
73. o verify that your selections are consistent with your application inputs outputs alarms limits etc If the problem persists after checking the configuration of the controller you can get technical assis tance from your local Watlow representative see back cover or by dialing 1 507 494 5656 between 7 a m and 5 p m Central Standard Time CST Ask for for an Applications Engineer Please have the following information available when calling e Complete model number e All configuration information User s Manual Factory Page Warranty The series SD is manufactured by ISO 9001 registered processes and is backed by a three year war ranty Return Material Authorization RM A l Call Watlow Customer Service 507 454 5300 for a Return Material Authorization RMA number before returning any item for repair f you do not know why the product failed contact an Application Engineer or Product Manager All RMA s require e Ship to address Bill to address e Contact name Phone number e Method of return shipment Your P O number Detailed description of the problem Any spedal instructions e Name and phone number of person returning the product 2 Prior approval and an RMA number from the Customer Service Department is required when returning any product for credit repair or evaluation Make sure the RMA number is on the outside of the carton and on all paperwork returned Ship on a Freight Prepaid basis 3 After
74. ollers using Modbus Some applications may require other steps not mentioned but would follow the same general process 8 Programming and configuring the controllers When programming and configuring the controllers with a software program a couple of things must be kept in mind If the software allows changing Setup parame ters such as Input Type other parameter values that are dependent on that setting may be automatically changed Some software packages may warn you of this possibility and others may not Also some controllers require that any changes made by the software program to controller parameters that need to be retained in the controller memory must be saved in the non volatile memory writes register Any settings not saved to controller memory will be lost when the controller s power 1s turned off Writing to Non Volatile Memory The Series SD stores parameter values in non volatile EEPROM memory This type of memory has a finite life of approximately 100 000 write cycles In some applica tions you might need to constantly write new values to a particular register Examples might be the writing of limit or alarm set points through serial communications Continuous writes may result 1n premature controller failure and system downtime To prevent premature failure of the EEPROM when frequently writing register values write a 0 to register 17 Any values written after that will not be stored to EEPROM However this
75. onductor clean rooms This feature reduces the use of paper to record instrument informa tion as well as human transposition errors Chapter 9 Features Indication No power Controller appears dead No display indication in either window Cannot establish serial data com munications with the controller Cannot establish infrared com munications link Output signal is on when it should not be Output signal is not on when it should be Watlow Series SD Limit Troubleshooting Probable Cause s Power to unit may be off Fuse may be blown Breaker may be tripped Safety interlock door switch etc may be acti vated Separate system limit control may be latched Wiring may be open Input power may be incorrect Address parameter may be incorrectly set Baud rate parameter may be incorrectly set Unit to unit daisy chain may be disconnected Communications wiring may be reversed shorted or open EIA 485 converter box may be incorrectly wired Computer s COM port may be incorrectly set up Communications software setup or address may be incorrect PC software s protocol or parity may be wrong Parity should be 8 n 1 Application software is not working properly May need termination pull up and pull down resistors Optical transceiver path obstructed Infrared device too far away Infrared device software settings do not match controller s infrared settings Output wiring is
76. oth 0 both high and h 19h 1 high side active Lodlu 2 low side active 0 Max operat 233 234 Always active ing range J R W ther type mocouple 1472 237 238 R W RTD 999 PAA 241 242 uot E and R W mA PU or V 0 85 86 Always appears R W 0 89R W Always active 0 0 87 88 Fer fElis not set to R W OFF LIZ 143R Always active 0 111R V Always active 1 0 106 107 Always active R W 164 R W Output 2 is installed and is not a communica tions output both 0 126 QE lis set tolL 1001 1 0 121 122 is set to R W or L IPO 169 R W is set to P RL Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parame ters are in F through Modbus Low register numbers contain the two higher bytes high register numbers contain the two lower bytes of the four byte integer Decimal precision is implied at three decimal places unless otherwise noted Watlow Series SD Limit 26 Chapter 5 Setup Display Parameter Name Range Default Modbus Appears if Description Integer values for Modbus 200509 in parentheses Read Write LA Alarm 2 Latching off 0 0 123 R W is set to PrAl LAt2 Turn alarm latching on or off on 1 6 110 Alarm 2 Silencing off 0 no silencing 124 Qt g is set to PAL SiL2 Turn alarm silencing on or off on 1 silencing J
77. ough the pa rameter prompts At the end of the operations pa rameters press the Advance Key to return to the Home Page Press the Up or Down Q keys to change the pa rameter value Press the RESET Key at any time to return to the Home Page Operations Page defaults L Lo Limit 1 Low Set Point LH Limit 1 High Set Point eL o Limit 2 Low Set Point CH Limit 2 High Set Point 2 Alarm 2 Low Set Point Alarm 2 High Set Point Limit 3 Low Set Point Limit 3 High Set Point Alarm 3 Low Set Point Alarm 3 High Set Point rer ma m m 20 re o 20 fU x ro Uu ro er x 0 Lu re o 20 RE x Note Hardware configuration and programming selections deter mine what parameters appear on the Operations Page Chapter 3 Keys and Displays Setup Page Overview The Setup Page contains parameters that define the basic limit functions Go to the Setup Page for initial configuration or if your application require ments change Be sure to program the Setup Page first To go to the Setup Page press both the Up and Down Q keys for three seconds from the Home Page e Press the Advance Key to move through the parameter prompts e Press the Up or Down Q keys to change the parameter value e Press the RESET Key at any time to return to the Home Page Note Hardware configuration and program
78. r Time Constant Filtering smoothes an input signal by applying a first order filter time constant to the signal The dis played value the controlled value or both the displayed and control values can be filtered Filtering the dis played value makes it easier to monitor Filtering the signal may improve the performance of the limit in a noisy or very dynamic system Select filter options with Input Filter F Select the Filter Value with Setup Page Unfiltered Input Signal Temperature Time Filtered Input Signal Temperature Time Watlow Series SD Limit 41 sensor Selection You need to configure the limit to match the input device which is normally a thermocouple RTD or process transmitter When you select an input device the limit automatically sets the input linearization to match the sensor It also sets high and low limit values which in turn determine the limit set point range high and range low values Select the sensor type with Sensor Type Setup Page Access Lockout The user s access to the Operations Page can be con trolled through the parameter The pa rameter appears at the end of the Setup Page It does not affect the Setup Factory or Programming Pages No level of lockout The user has full access to all prompts and menus The Programming Page is locked from view The Setup Page is locked except for the prompt which can be viewed and changed The user will be
79. racy 10mV 1 LSD at standard conditions Temperature stability 100 ppm C maximum Milliamp input ranges Accuracy 20uA 1 LSD at standard conditions Temperature stability 100 ppm C maximum Output Types Open Collector e Maximum voltage 42V dc e Maximum current 250 mA e Class 2 power source required Type J 32 to 1 382 F or 0 to 750 C Type K 328 to 2 282 F or 200 to 1 250 C Type T 328 to 662 F or 200 to 350 C Type N 32 to 2 282 F or 0 to 1 250 C Type E 328 to 1 470 F or 200 to 900 C Type C W5 32 to 4 200 F or 0 to 2 915 C Type D W3 32 to 4 200 F or 0 to 2 915 C Type PTII F 32 to 2 540 F or 0 to 1 393 C Type R 32 to 2 642 F or 0 to 1 450 C Type S 32 to 2 642 F or 0 to 1 450 C Type B 1 598 to 3 092 F or 870 to 1 700 C RTD 328 to 1 472 F or 200 to 800 C Process 1 999 to 9 999 unit Watlow Series SD Limit Switched DC Supply voltage minimum 6V dc 30 mA Supply voltage maximum 12V dc into an infinite load Solid state Relay Optically isolated Zero cross switched Without contact suppression Minimum load current 10 mA rms Maximum current 0 5A rms at 24 to 240V ac resistive Maximum offstate leakage current 100 uA rms For resistive loads only must use RC suppression for inductive loads 20 VA pilot duty 120 240V ac Electrical life 100 000 cycles at rated current Appendix Electromechanical Relay Form A Minimum load current 10 mA Rated re
80. re an IP65 NEMA 4X seal slide the bracket up to the back of the panel enough to eliminate the spacing between the gas ket and the panel For an IP65 NEMA 4X seal use your thumb to lock the tabs into place while pressing the limit from side to side Don t be afraid to apply enough pressure to properly install the limit If you can move it back and forth in the cutout you do not have a proper seal The tabs on each side of the bracket have teeth that latch into the ridges Each tooth is staggered at a different depth from the front so only one of the tabs on each side is ever locked into the ridges at any time Either the two middle tabs or the two tabs diagonal from each other will be engaged If the matching tabs are not engaged you do not have an IP65 NEMA 4X seal The space between the bezel and panel must be 0 to 0 48 mm 0 to 0 019 in maximum Removing the 1 32 DIN Series SD Limit 1 Remove the terminal cover and all of the wiring connectors from the back of the limit Slide a thin wide tool putty knife under all three mounting tabs top then bottom while pushing forward on the back of the case Be ready to support the limit as it slides out of the panel cutout 6 Chapter 2 Install and Wire A Caution Follow the installa tion procedure exactly to guarantee a proper IP65 NE MA 4X seal Make sure the gasket between the panel and the rim of the case is not twisted and is seated properly Failure to do so could
81. relay switched dc or solid state relay output options requires use of an R C suppres sor Watlow carries the R C sup pressor Quencharc brand name which is a trademark of ITW Paktron Watlow Part No 0804 0147 0000 Note To prevent ground loops isolation needs to be maintained from input to output when using switched DC or analog process outputs Watlow Series SD Limit Figure 15a Output 3 Mechanical Relay SD_L ___E e 5A Form C e 240V ac maximum e 30V dc maximum e See Quencharc note e For use with ac or dc e Minimum load current 10 mA Output does not supply power Mechanical Relay 12 common e 13 normally open 14 normally closed Figure 15b Output 3 Solid state Relay SD L e 0 5 A maximum Form A 24 to 240V ac e See Quencharc note e Minimum load current 10 mA e Maximum leakage current 100 nA Not for use with direct current dc Output does not supply power Solid state Relay Solid state Switch COM 12 N O 13 Internal Circuitry 12 common 13 normally open Figure 15c Output 3 Switched DC SD L e Maximum supply current 30 mA dc e Supply voltage 6 to 12V dc e Not for switching mechanical relays e Qutput supplies power Switched DC 61012V dc dot 12 12 dc d 13 cui Load 1 c e 13 dc O 14 common m 15 Chapter 2 Install and Wire AN
82. result in damage to equipment Note Be careful not to over tighten the screws This may cause the mounting bracket to fail If the front bezel is touching the front panel the mounting bracket is too tight Installing and mounting requires access to the back of the panel Tools required one 2 Phillips screwdriver Tools required one 2 Phillips screwdriver Watlow Series SD Limit Installing the 1 16 DIN Series SD Limit Panel Hook Retention Collar Locating Hole Slot Gasket Bezel Case Mounting Bracket Terminal Cover Agmowal Arrows indicate the direction of pull to remove the connectors 1 Make the panel cutout using the mounting template dimensions in this chap ter 2 Check that the rubber gasket lies in its slot at the back of the bezel Insert the limit into the panel cutout Slide the retention collar over the limit with the locating holes on the top and bottom facing the back of the limit 3 Slide the mounting bracket over the back of the limit with the screw tips pointed toward the panel aligning with the locating holes in the retention col lar Push it gently but firmly over the limit until the hooks snap into the slots at the front 4 Ifthe installation does not require an IP65 NEMA 4X seal tighten the two screws with the Phillips screwdriver just enough to eliminate the spacing be tween the rubber gasket and the panel For an IP65 NEMA 4X seal tighten t
83. river Watlow Series SD Limit Installing the 1 8 DIN Series SD Limit Panel Retention Collar Mounting Bracket 6 Slot Hook Release Tab Terminal Cover Aamowal Arrows indicate the direction of pull to remove the connectors 1 Make the panel cutout using the mounting template dimensions in this chap ter 2 Check that the rubber gasket lies in its slot at the back of the bezel Insert the limit into the panel cutout Slide the retention collar over the limit with the locating holes facing the back of the limit 3 Slide the mounting bracket over the back of the limit with the screw tips pointed toward the panel aligning with the locating holes in the retention col lar Push it gently but firmly over the limit until the hooks snap into the slots at the front 4 Ifthe installation does not require an IP65 NEMA 4X seal tighten the four screws with the Phillips screwdriver just enough to eliminate the spacing be tween the rubber gasket and the panel For an IP65 NEMA 4X seal tighten the four screws until the gap between the bezel and panel surface is 0 5 mm 0 020 in maximum Make sure that you cannot move it back and forth in the cutout If you can you do not have a proper seal Do not over tighten Over tightening could damage the the mount ing bracket Removing the 1 8 DIN Series SD Limit 1 Remove the terminal cover and all of the wiring connectors from the back of the limit Using t
84. rl Displays the firmvvare revision 5bld Software Build Number 0 to 9999 Build Number NA 13 R Always active S bLd Displays the software build number Power Type 0 high voltage NA NA Always active PWr Displays the type of input power 1 Ob UJ 1 low voltage Sn Serial Number 1 0 to 9999 NA 7 8R Always active Sn Displays the first four characters of the serial number 56 Serial Number 2 0 to 9999 NA 7 8R Always active Sn Displays the last four characters of the serial number Thermocouple 50mV NA Always active tc 50 Calibrate the thermocouple input to YES 50mV see Calibrating the Series SD tc00 Thermocouple 0mV NA Always active tc 00 Calibrate the thermocouple input to 0mV YES see Calibrating the Series SD Thermocouple 32 F NA Always active tc 39 Calibrate the thermocouple input to 0 C YES 32 F see Calibrating the Series SD RTD 15 ohm NA Always active 1 15 Calibrate the RTD input to 15 ohm see YES Calibrating the Series SD RTD 380 ohm NA Always active 1 380 Calibrate the RTD input to 380 ohms YES see Calibrating the Series SD Input Calibrate 1 0 Volt NA Always active V1 Calibrate the process voltage input to 1 0 YES Volt see Calibrating the Series SD The Series SD controller can be calibrated only with the front panel controls These parameters are not visible through
85. rocess Output 3 Setup and Calibration Equipment l Precision volt ammeter with 3 5 digit resolution Connect the correct power supply to terminals 1 and 2 see Chapter Two Volts 2 Connect the volt ammeter to terminals 14 and 13 4 At Output 3 Calibrate 1V select and press the Advance Key The voltage output value appears in the upper display Press the Up or Down Key Q to adjust the upper display value to match the value from the volt ammeter The unit should stabilize within one second Repeat until the volt ammeter reads 1 00V 0 1V Press the Ad vance Key to store the value and move to the next prompt At Output 8 Calibrate 9V select and press the Advance Key The voltage output value appears in the upper display Press the Up or Down Key Q to adjust the upper display value to match the value from the volt ammeter The unit should stabilize within one second Repeat until the volt ammeter reads 9 00V 0 1V Press the Ad vance Key to store the value and move to the next prompt Rewire for operation and verify calibration Watlow Series SD Limit Milliamperes 6 9o 9 Connect the volt ammeter to terminals 12 and 14 At Output 3 Calibrate 4 mA 0 34 8 select and press the Advance Key The current output value appears in the upper display Press the Up or Down Key Q to adjust the upper display value to match the value from the volt ammeter The unit shoul
86. s engaged hooks from snapping back into the slots Repeat this operation to disengage the hooks on the bottom side of the mount ing bracket Press with one or two fingers on the lower half of the back of the unit so that the limit slides forward toward the panel Hold the bracket steady do not pull back Be ready to support it as it comes through the front panel 9 Chapter 2 Install and Wire Series SD Family Back Views in Scale NOTE The SD model number determines which diagram applies to your unit RS kaaa Figure 10 1 32 DIN SD3L J o o 1 e TAS GS rec H O 0 68 Figure 10c 1 8 DIN Horizontal SD9L J vv KENA oc t Figure 10e 1 4 DIN SD4L _J__ Watlow Series SD Limit 10 Figure 10b 1 16 DIN SD6L _J__ Figure 10d 1 8 DIN Vertical SD8L J NOTE Terminals 12 13 and 14 are not installed on con trollers without an output 3 SD 1 Chapter 2 Install and Wire AN Warning Use National Electric NEC or other country specific standard wiring and safety practices when wiring and connecting this limit to a power source and to electri cal sensors 0r peripheral de vices Failure to do so may re sult in damage to equipment and property and or injury or loss of life Note To prevent ground loops isolation needs to be maintained from input to output when using switched DC or analog proce
87. sistive 2 A 240V ac or 30V dc maximum Flectrical life 100 000 cycles at rated current For resistive loads only must use RC suppression for inductive loads 125 VA pilot duty 120 240V ac Electromechanical Relay Form C Minimum load current 10 mA Rated resistive 5 A 9 240V ac or 30V dc maximum Electrical life 100 000 cycles at rated current For resistive loads only must use RC suppression for inductive loads 125 VA pilot duty 120 240V ac Process Range selectable 0 to 20 mA 4 to 20 mA 0 to dc 1 to 5V dc 0 to 10V dc Reverse or direct acting 0 to 10V dc voltage output into 1 000 minimum load resist ance 0 to 20 mA current output into 800 O maximum load resistance Resolution dc ranges 2 5 mV nominal mA ranges 5 pA nominal Calibration accuracy dc ranges x15 mV mA ranges 30 nA Temperature stability 100 ppm C Communications EIA TIA 485 Isolated Modbus RTU protocol 9600 19200 and 38400 baud rates A maximum of 32 units can be connected with additional 485 repeater hardware up to 247 units may be connected Sampling rate 20 Hz Modbus is a trademark of AEG Schneider Automation IrDA Modbus RTU via IRCOMM over IrDA Sampling rate 20 Hz Agency Approvals Factory Mutual Class 3545 Temperature Limit Switches File 3014848 UL Listed Process Control UL3121 UL 61010C 1 c UL CE IP65 NEMA 4X NEMA 12 File E185611 UL is a
88. ss outputs AN WARNING If high voltage is ap plied to a low voltage limit irre versible damage will occur Watlow Series SD Limit Wiring the Series SD Isolation Blocks There are no electrical connections between these blocks EIA TIA 485 Communi cations Input Sensor Input Power Supply Input Switched DC Outputs Analog Process Outputs Relay outputs mechanical and solid state provide isolation through their relay contacts Each relay output is isolated from the blocks above and 1s isolated from other relay outputs The model number for each output option appears with its wiring dia gram Check the label on the limit and compare your model number to those shown here and to the model number breakdown in the Appendix of this manual The connectors on the back of the Series SD are different for different model numbers All outputs are referenced to a de energized state All wiring and fusing must conform to the National Electric Code and to any locally applicable codes as well Figure 11a High Voltage AC Power Wiring SD L HJ HdFigh e Nominal voltage 100 to 240V ac L1 1 L2 Figure 11b Low Voltage AC Power Wiring SD L LJ Low e Nominal voltage 24 ac dc e Class 2 power source required for agency compliance 11 Chapter 2 Install and Wire AN Warning Use National Electric NEC or other country specific standard wiring and safety practices when wiring and connecting th
89. steresis for the alarm or limit 0000 to 999000 R W or L IPA output This determines how far into the safe region the input needs to move be fore the output can be cleared Modbus Device Address 1 to 247 1 This can Output 2 is a commu Addr Set the device address for communica only be set nications output tions Every controller on a network from the SD U must have a unique address controller front panel C F Temperature Units Fahrenheit 0 00 40 R W is set to C F Set the temperature units for thermocou Celsius 1 o etd ple and RTD inputs Calibration Offset 999 to 999 0 85 86 Always appears CAL Offset the input reading 999000 to 999000 R W Note Parameters appear in the Operations Page only if activated from the Programming Page Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parame ters are in F through Modbus Low register numbers contain the two higher bytes high register numbers contain the two lower bytes of the four byte integer Decimal precision is implied at three decimal places unless otherwise noted Watlow Series SD Limit 31 Chapter 6 Operations Programming Page The Programming Page allows you to select what parameters appear on the Operations Page To go to the Pro gramming Page press the Advance and RESET keys for six seconds from the Home Page will appear in the upper display and PA 9
90. tching 26 Alarm 2 Low 30 Alarm 2 Message 26 Alarm 2 Silencing 26 Alarm 3 High 30 Alarm 3 Latching 27 Alarm 3 Low 30 Alarm 3 Message 27 Alarm 3 Silencing 27 Alarm High 2 Status 23 Alarm High 3 Status 23 Alarm Latching 43 Alarm Low 2 Status 23 Alarm Low 3 Status 23 Alarm Message 20 Alarm Set Points 42 Alarm Silencing 43 Alarms 42 Ambient Temperature 36 Analog Output 3 Scale High 27 Analog Output 3 Scale Low 27 Analog Output 3 Units 27 Appendix 49 Automatic send data control 17 Back Views 10 Baud Rate 29 44 Biasing and termination 17 Calibration Offset 25 31 41 Comm 44 Communications 42 50 Current Process Input Cal Procedure 40 data bits 44 Default Parameters Programming Page 32 Dimensions 4 50 1 16 DIN 4 1 32 DIN 4 1 4 DIN 5 1 8 DIN 5 Display Intensity 36 EIA TIA 232 to 485 converter 17 EIA TIA 232 to EIA TIA 485 converter 44 EIA TIA 485 50 Error condition 20 Error Messages 48 Factory Page and Calibration 36 Factory Page Overview 22 Features 39 Filter Time Constant 41 Filter Value 25 Filtered Process Value 23 Watlow Series SD Limit Functionality Matrix 50 Ground loops 11 Home Page 23 Home Page Overview 20 How to use 3 INFOSENSE 2 24 40 Infrared Data Communications 45 Input accuracy ranges 49 Input Calibrate 1 0 Volt 35 Input Calibrate 16 0 mA 36 Input Calibrate 4 0 mA 36 Input Calibrate 9 0 Volt 36 Input Error 23 Input Error Latching 27 Input Filter 25 Inputs 40 Inputs and outputs 2 Install
91. te to adapt 1t to a smaller limit Step 2 Wire the limit The limit will need to have its power input and out put wiring installed The wiring depends on the specific model number of the Series SD limit The dimension il lustrations in Chapter Two show the location of the model number on each DIN size Use the model num ber to determine which wiring diagrams to follow for your limit See Chapter Two for wiring details Step 3 Configure the Setup Page Setup Page parameters tell the limit what input and output devices are wired to the limit and how it should function Without the proper Setup Page set tings the limit will not operate or could operate errati cally Since these settings require detailed knowledge on the wiring and operation of the equipment the OEM or the designer normally programs these parame ters Some settings such as the baud rate or device ad dress are Setup Page parameters but would probably be set by the end user These settings should be recorded for future refer ence The settings can also be stored using the U 5 5 parameter in the Factory Page For saving and restor ing parameters see Chapter Fight Features For de tails on configuring the Setup Page see Chapter Five Setup Page Step 4 Configure the Operations Page The Operations Page contains the parameters that the equipment operator may need to set or change from time to time This includes limit and alarm set points In some
92. to 9999000 3 3 C Note Parameters appear in the Operations Page only if activated from the Programming Page Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus Low register numbers contain the two higher bytes high register numbers contain the two lower bytes of the four byte integer Decimal precision is implied at three decimal places unless otherwise noted Watlow Series SD Limit 30 Chapter 6 Operations Display Parameter Name Range Default Modbus Appears if Description Integer values for Modbus 20550 in parentheses Read Write Alarm 3 High Process range of sensor if 1500 134 135 If is set to hil Set the high alarm set point for Output is set to or R W P RL 3 1999 to 9999 if is set to PIA ot k or 1999000 to 9999000 h45 Limit 1 Hysteresis 0 0 to 999 0 1 0 106 107 Always active hyS1 Set the hysteresis for the limit This de 0000 to 999000 R W termines how far into the safe region the input needs to move before the limit can be cleared This also appears in the Set up Page Output 2 Hysteresis 0 0 to 999 0 1 0 121 122 is set to hyS2 Set the hysteresis for the alarm or limit 0000 to 999000 R W or iL IPA output This determines hov far into the safe region the input needs to move be fore the output can be cleared Output 3 Hysteresis 0 0 to 999 0 1 0 136 137 QE Jis set to hyS3 Set the hy
93. to design into your products You will need to do the first three steps and maybe some of the fourth step Some wiring such as the final wiring of a communications connection or an alarm output for signaling an external device might be left to the end user In highly specialized applications with lit tle variation 1n operation and heat load the OEM might configure almost all the parameters If you purchased the limit to design and install into new equipment for your own use or to retro fit into existing equipment You will need to complete all four steps If you purchased the limit installed in equipment designed around it You will probably only need to do the fourth step In some instances you may need to wire it for serial com munications and or an alarm output Some serial com munications parameters in the Setup Page may need to be changed Step 1 Mount and install the limit The Series SD limit 1s designed to be panel mounted in a standard DIN opening The Series SD is available in 1 32 DIN 1 16 DIN 1 8 DIN horizontal 1 8 DIN vertical and 1 4 DIN sizes Cut the correct size hole in to the panel and mount the limit using its mounting brackets See Chapter Two for details on installation and mounting Watlow Series SD Limit If you retrofit the Series SD limit into an existing application you may need to modify an existing open ing either by cutting it larger for a larger limit or using a Watlow adapter pla
94. ts 14 com Chapter 2 Install and Wire Selecting an EIA TIA 232 to EIA TIA 485 Converter When choosing an EIA TIA 232 to 485 converter look for one with the following features Two wire capability EIA TIA 485 can be implemented as a two wire sys tem or a four wire system Most Watlow controllers including the Series SD limit use two wire commu nications when working with 485 The con verter selected must have a two wire mode Some converters can only be used in a four wire mode Automatic Send Data control In a two wire system both the transmitted signals and the received signals travel over the same pair of wires so the converter must have a method of changing from the transmit mode to the receive mode Some converters require the toggling of a con trol line usually the RTS line to perform this tran sition while others use an automatic timing circuit The toggling method is dependent on the PC soft ware to toggle the control line and the PC s operating system to make that transition happen in a timely manner Because of these dependencies the best choice for a converter is one with automatic control Isolation Converters are available with or without input to output isolation An isolated converter is not a re quirement when used with the Series SD but it is recommended to avoid ground loops Also isolation could be a consideration when the Series SD will be used on a network with other d
95. ttings will appear Inputs INFOSENSE Temperature Sensing Watlow s INFOSENSE feature can improve tem perature sensing accuracy by 50 Watlow s INFOS ENSE thermocouples and RTD temperature sensors must be used together to achieve these results Each INFOSENSE smart sensor contains four numeric values that are programmed into the SD mem ory These values characterize Watlow sensors for the controller to provide greater accuracy Turn the INFOSENSE feature on or off with IN FOSENSE Enable Setup Page Set the four numerical values supplied with Watlow s INFOS ENSE in thel 16 Ill 15 P 2 and parameters Contact your Watlow salesperson or Watlow author ized distributor for the pricing and availability of Wat low INFOSENSE products The four numerical values are found on the tag at tached to the sensor Chapter 9 Features Calibration Offset Calibration offset allows a device to compensate for an inaccurate sensor lead resistance or other factors that affect the input value A positive offset increases the input value and a negative offset decreases the in put value The input offset value can be viewed or changed with Calibration Offset Operations parameters Negative Calibration Offset will compensate for the difference between the Sensor Reading and the Actual Temperature p Temperature Reading from Sensor Temperature Actual Process Temperature Time Filte
96. uts Watlow Series SD Limit Figure 13a 4 to 20 mA Process Input all model numbers e Input impedance 100 Q dc only e Limit does not supply power for the current loop al 11 m M DOLL ba MM o LLOL6 8 Figure 13b Output 1 Mechanical Relay SD L J 2 A Form A e 240V ac maximum 30V dc maximum e See Quencharc note e For use with ac or dc e Minimum load current 10 mA Output does not supply power Mechanical Relay er common 5 normally open 6 A Figure 13c Output 2 Mechanical Relay SD_L __J_ 2 A Form A 240V ac maximum 30V dc maximum e See Quencharc note e For use with ac or dc e Minimum load current 10 mA Output does not supply power Mechanical Relay 13 Chapter 2 Install and Wire AN Warning Use National Electric NEC or other country specific standard wiring and safety practices when wiring and connecting this limit to a power source and to electri cal sensors 0r peripheral de vices Failure to do so may re sult in damage to equipment and property and or injury or loss of life Quencharc Note Switching inductive loads relay coils solenoids etc with the mechanical relay switched dc or solid state relay output options requires use of an R C suppres sor Watlow carries the R C sup pressor Quencharc brand name which is a trademark of ITW Paktron Watlow Part No 0804 0147 0
97. y at any time to return to the Home Page Note Hardware configuration and programming selections deter mine what parameters appear in the Factory Page Factory Page 6 Ambient Temperature 1n Minimum Recorded Ambient Temperature 182 Maximum Recorded Ambient Temperature SPL Display Intensity 61 Restore Factory Calibration US c Restore User Settings 116 c 5 Save User Settings dF kt Default Parameters GEY Output 1 Type Gt 4o Output 2 Type Gt S 3 Output 3 Type 6 Ig Software ID SUE Software Version 55L d Software Build Number PU Jc Power Type 6 Serial Number 1 Serial Number 2 E c 50 Thermocouple 50mV t c 0 0 Thermocouple 0mV tc 3c Thermocouple 32 F rc 15 RTD 15 ohm RTD 380 ohm Input Calibrate 1 0 Volt Input Calibrate 9 0 Volt Input Calibrate 4 0 mA Input Calibrate 16 0 mA Output 3 Calibrate 1 0 Volt Output 3 Calibrate 9 0 Volt Output 3 Calibrate 4 0 mA Output 3 Calibrate 16 0 mA zo 3 zB 20 m m C LO 20 C po m o WT C C3 M LO C C3 DO o TY m Calibration information for the Series SD controllers is available in pdf format Go to www watlow com Literature 5 Product User Manuals and search on Series SD Calibration Manual 22 C

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