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User`s Manual Series SD Limit Controller

1. AY 22 34 0 3 9 u 22 34 _ A 1G 22 34 O3 h 1 21 27 A Z h 1 20 22 23 30 03 0 21 27 A Z L o 20 22 23 30 t Y 1 22 32 RIA 1 20 22 23 30 O E Y 2 22 33 A J L o 20 22 23 30 G E Y 3 22 33 A P 9 A 22 32 Gt N21 25 A PIn 22 32 Gt 9gj21 26 ALOE 3 22 32 Ot 3 21 26 Adde 21 22 29 31 P d EC 21 24 AP 7b 22 32 Peo J 22 A0 3 U 21 27 PL dr 22 33 b Aud 21 29 r 15 22 33 CAL 21 22 25 31 7 388 22 33 C F 21 22 24 31 r ESE 22 32 36 JDFLE 22 32 r 9 h 21 25 d5P2j21 26 9 L o 21 25 gdS5P3j21 27 5 bl d 22 33 d5PL 22 32 S dt 21 24 E c A 6 20 23 S UE c 122 33 Ec C 5 20 23 Sc h 1 21 25 Er 1n 20 23 5c l 0 21 25 FAcE 22 32 SEn 21 24 FLEr 21 25 5Et 24 FEr E 21 25 5 1d 22 33 h 945 1 21 22 26 31 5 L 2 21 26 H450 21 22 26 31 s4 3 21 27 YS 3 21 22 27 31 n 22 33 LEr r 21 27 n 22 33 IS En 21 24 SP hh 21 25 NG P 1 21 24 5PLo 21 25 1G Po 21 24 Ec 00 22 33 15 P3 21 24 Ec 30 22 33 45 P 4 21 24 E c 5 G 22 33 L Lh 1 20 22 23 30 UY 4 22 33 L Lb o 20 22 23 30 U9 22 34 L Q h 1 20 22 23 30 Ud SP 21 28 L Z L o 20 22 23 30 USr r 22 32 L J h 1 20 22 23 30 US rn 5 22 32 L J L o 20 22 23 30 LALO 21 26 LAE J 21 27 Ud SP 21 28 L 9c 2 21 26 L Ge 3 21 27 L 1A 21 24 U8 21 29 LSd 1 21 25 L Sde 21 26 L 5d 3j21 26 703 16 22 34
2. 7 9 mm 0 31 in minimum i 1 Panel Cutout 31 8 mm 1 25 inj minimum Panel Thickness 1 52 to 9 53 mm 0 060 to 0 375 in 92 0 to 93 0 mm 8 62 to 3 65 in Side horizontal Contact your local Greenlee supplier for the appropriate punch kit and cutout tools required for rapid mounting 1 4 DIN Series SD Limit Dimensions Front 92 0 to 93 0 mm 3 62 to 3 65 in Tae Panel Cutout Panel Thickness 1 52 to 9 53 mm 0 060 to 0 375 in 92 0 to 93 0 mm 3 62 to 3 65 in 17 6 mm 0 68 in minimum 16 0 mm 0 63 in minimum Side Back Contact your local Greenlee supplier for the appropriate punch kit and cutout tools required for rapid mounting Model Number 45 0 to 45 6 mm 1 77 to 1 79 in Dimensions for Horizontal or Vertical versions 97 8 mm 3 85 in 0 64 mm 0 025 in maximum gap between controller front and customer front panel EH m 10 3 mm 0 40 in Customer Front Panel 101 1 mm 9 6 mm 3 98 in ke 0 38 in Ak l q ami go Gi ce 3 JAN Customer Front Panel CN 0 5 mm 0 020 in maximum gap between controller front and customer front panel 108 3 mm 4 26 i n 4 108 8 mm 4 28 in Watlow Series SD Limit
3. Infrared Configure Output 1 Limit Output 2 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 Figure 2 Series SD limit inputs and outputs Watlow Series SD Limit Chapter 1 Overview Features and Benefits Patented User Definable Menu System e Simplifies operator interface User Defined Default Settings e Restores user defined controller settings INFOSENSE Technology e Improves sensor accuracy by a minimum of 50 INFOSENSE Technology 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 e 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 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
4. 4 Enter 9 00V from the voltage source to the con troller Allow at least 10 seconds to stabilize Set In put Calibrate 9V 4 9 to YES Press the Advance Key to store the 9 00V input and move to the next prompt 5 Rewire for operation and verify calibration Watlow Series SD Limit Chapter 7 Factory Current Process Input Procedure Equipment e Precision current source 0 to 20 mA range with 0 01 mA resolution Input Setup and Calibration 1 Connect the correct power supply to terminals 1 and 2 see Chapter Two 2 Connect the current source to terminals 11 and 8 3 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 AYltol YES Press the Advance Key to store the 4 mA input and move to the next prompt 4 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 A 6 to YES Press the Advance Key to store the 16 mA input and move to the next prompt 5 Rewire for operation and verify calibration Process Output 3 Setup and Calibration Equipment e Precision volt ammeter with 3 5 digit resolution 1 Connect the correct power supply to terminals 1 and 2 see Chapter Two Volts 2 Connect the volt ammeter to terminals 14 and 13 3 At Output 3 Calibrate 1V 03 lu select and press the Advance Key The
5. 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 Installing the 1 32 DIN Series SD Limit 4 Panel Mou ning 8s g Mounting Tab Bracket Mounting Ridge Gasket Bezel Arrows indicate the direction of pull to remove the connectors IP65 NEMA 4X Seal Example 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 require 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
6. e 520 MQ input impedance Maximum 20 source resistance RTD e 2 or 3 wire platinum 100 Q e DIN curve 00385 curve e Whole or tenth degree indication e 390 pA nominal RTD excitation currrent Process Range selectable 1 to 10V dc 1 to 5V dc 4 to 20 mA Can reverse low and high values Voltage input impedance 20 kQ Current input impedance 100 Minimum current source resistance 1 MO Input resolution 50 000 bits approximately at full scale Input Accuracy Input ranges 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 14709F or 200 to 900 C Type W5 32 to 4 200 F or 0 to 2 3159C Type D W3 32 to 4 200 F or 0 to 2 3159C Type PTII F 32 to 2 540F 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 Allowable Operating Ranges Type J 32 to 1 500F 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 372F or 0 to 1 300 C Type E 454 to 1 470 F or 270 to 800 C Type C 32 to 4 200 F or 0 to 2 3159C Type D 32 to 4 2009F or 0 to 2 3159C Type PTII F 32 to 2 5439 F or 0 to 1 395 C Type R 32 to 3 200F or 0 to 1 760 C Type S
7. Case Slot Gasket Mounting Bracket 77 Bezel 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 the 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 all the wiring connectors from the back of the limit While supporting the limit with one hand use the Phillips screwdriver to unscrew the two screws on the mounting bracket until the tips are flush or past the end of
8. Chapter 7 Factory Page and Calibration 32 Chapter 8 Features 37 Saving and Restoring User Setings 38 Operations Page 38 Inputs 45er erue erae duae 38 Alarms zx ia e seed Re ard Ie xe 40 Communications 42 Troubleshooting 44 Error Messages 46 Appendix iii yi 05 oe der ai a rec 47 SPCCHICATIONS es vus s ERI ROREM x gs 47 Ordering Information 49 NAA ta amma altan essa eet e ted GA 50 Declaration of Conformity 53 Watlow Series SD Limit 1 Table of Contents 1 Overview The Watlow Series SD family of microprocessor based limit controllers is available in 1 82 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 All 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 Sp
9. Communications OVETVIEW scuto exeo ood Beak REY ena 42 Setting Up a Modbus Network 42 Infrared Data Communications 43 Troubleshooting eee eee 44 Error Messages aaa 46 Watlow Series SD Limit 37 Chapter 8 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 U 5 to save the settings into a spe cial section of memory If the settings in the controller are altered and you want to return the controller to the saved values use U 5 r r to recall the saved 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 and Oper ations parameters 2 Press the Up O and Down Q keys together for six seconds until appears in the upper display and PA 9E appears in the lower display 3 Press the Advance Key to step through the prompts until the UJ 5 7 5 prompt appears 4 Use the Up Key O to select 9 5 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
10. tc 00 Calibrate the thermocouple input to 0mV YES see Calibrating the Series SD tc 3 g Thermocouple 32 F no NA Always active tc 32 Calibrate the thermocouple input to 0 C YES 32 F see Calibrating the Series SD r 15 RTD 15 ohm no ao NA Always active 1 15 Calibrate the RTD input to 15 ohm see YES Calibrating the Series SD 7 380 RTD 380 ohm aS NA Always active 1 380 Calibrate the RTD input to 380 ohms YES see Calibrating the Series SD U I Input Calibrate 1 0 Volt no 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 serial communications Watlow Series SD Limit 33 Chapter 7 Factory Display Parameter Name Settings Range Default Modbus Appears if Description Integer values for Modbus dor aeu in parentheses Read Write 09 Input Calibrate 9 0 Volt no NA Always active V9 Calibrate the process voltage input to 9 0 YES Volt see Calibrating the Series SD AY Input Calibrate 4 0 mA no NA Always active A4 Calibrate the process current input to 4 0 YES mA se
11. 35 RTD 15 ohm 33 RTD 380 ohm 33 Sampling rate 47 Save User Settings 32 Watlow Series SD 50 Appendix Saving and Restoring User Settings 38 Sensor Selection 39 Sensor Type 24 Serial Number 1 33 Serial Number 2 33 Set Point High Limit 25 40 Set Point Low Limit 25 40 Setting Up a Modbus Network 42 Setup Page 24 Setup Page Overview 21 Software Build Number 33 Software ID 33 Software Version 33 Specifications 47 stop bit 42 Temperature Decimal Places 24 Temperature Units 24 31 Terminals 48 Thermocouple Input Cal Procedure 35 Thermocouple Linearization 24 Thermocouple 0mV 33 Thermocouple 32 F 33 Thermocouple 50mV 33 Troubleshooting 44 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 35 WATCONNECT 42 Watlow web site 42 Wiring 11 1 to 10V Process Input 12 4 to 20 mA Process Input 13 485 Converter 17 EM Gateway 18 High Voltage AC Power Wiring 11 Low Voltage AC Power Wiring 11 Output 1 Mechanical 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 51 Appendix V e 3 T3 ce CD gt lt
12. Approval the pa rameter must be set to 3 or the limit must be remotely mounted to restrict casual ad justment of limit set points up Page locked except for L OC Limit set points are the only Operation Page pa rameters accessible 3 3 Full lockout All pages locked except for Set up Page L OC See the Features Chapter for details Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus Low numbers contain the two lower bytes high numbers contain the two higher bytes of the four byte integer Decimal precision is implied at three decimal places sWatlow 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 Settings Range Default Modbus Appears if Description Integer values for Modbus pw nica 1n parentheses Read Write L LLo Limit 1 Low SP Lo to 5P h 74 102 103 L Sd fis set to L1 Lo Set the low limit set point value for Out R W both or Lob J put 1 L Lh Limit 1 High SP Lo to 5P h 75 104 105 L 5d Iis set to LLhi Set the high limit set point value
13. Chapter 7 Factory Display Parameter Name Settings Range Default Modbus Appears if Description Integer values for Modbus der a ae in parentheses Read Write 0 692 Output 2 Type nonE none 0 nonE 0 194R Always active O ty2 Displays the hardware type for Output 2 d C DC open collect 1 rc LA y mech relay 2 55 solid state relay 3 CON communications 5 0 693 Output 3 Type non none 0 inonE 0 195R Always active O ty3 Displays the hardware type for Output 3 dC DC open collect 1 cl AY mech relay 2 55 solid state relay 3 Pr oc process 4 __ 5 d Software ID 0 to 9999 NA 10R Always active Sid Displays the software ID number S UE c Software Version 00 00 to 99 99 NA 11R Always active S VEr Displays the firmware revision S bL d Software Build Number 0 to 9999 Build Number NA 13R Always active S bLd Displays the software build number Puyr Power Type 0 high voltage NA NA Always active PWr Displays the type of input power L OLJ 1 low voltage 5n Serial Number 1 0 to 9999 NA 7 8R Always active Sn Displays the first four characters of the serial number 5n Serial Number 2 0 to 9999 NA 7 8R Always active Sn Displays the last four characters of the a serial number tc 50 Thermocouple 50mV NA Always active tc 50 Calibrate the thermocouple input to 50mV see Calibrating the Series SD Ec 00 Thermocouple 0mV NA Always active
14. High Set Point Low Limit Set Point High Limit Calibration Offset E Enable Input Filter FLE Filter Value OE 1 Outputi Function L Sd I Limit 1 Sides h 35 I Limit 1 Hysteresis Ot gjOutput 2 Function L Sd Alarm or Limit 2 Sides h 359 Alarm or Limit 2 Hysteresis L 9c Alarm 2 Logic LAE Alarm 2 Latching Alarm 2 Silencing Alarm 2 Message Output 3 Function Alarm or Limit 3 Sides Alarm or Limit 3 Hysteresis Alarm 3 Logic Alarm 3 Latching Alarm 3 Silencing Alarm 3 Message 8 0 3 U Analog Output 3 Units o Analog Output 3 Scale Low 4 Analog Output 3 Scale High r rc Input Error Latching iUdSP Upper Display Look Cd5P Lower Display Look Addr Modbus Device Address Note For FM Approval the bfud Baud Rate LOC Lockout CLOC 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 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 and hold both down for about six seconds Press the Advance Key to move through the pa rameter prompts Press the Up O o
15. LIMIT SD WATLOW LIMIT SD E 2 3 WATLOW LIMIT SD Upper Display Left Display on 1 32 DIN Indicates the 1 32 DIN process in the Home Page or the value of the parameter in the lower display in other pages Lower Display Right Display on 1 32 DIN Indicates the set point or output power value during operation or the pa rameter whose value appears in the upper display Advance Key RESET Key O 1 20 30 Up and Down Advances the lower dis e Returns to the Home Keys Active Output play through parameter Page Indicator Lights prompts Lit when the correspon sa a In the Home Page ad ding limit or alarm out 0l justs the limit set point put is tripped 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 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 ret
16. NA 32 R Output 2 is in the high Indicate a high limit at output 2 Limit 1 limit condition Relo 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 Beh 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 Lito Limit Low 3 Status None 0 NA 33 R Output 3 is in the low Indicate a low limit at output 3 Limit 1 limit condition Lh 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 BJLo 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 ASA Alarm High 3 Status None 0 NA 34R Output 3 isin 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 Low numbers contain the two lower bytes high numbers contain the two higher bytes of the four byte integer Decimal precision is implied at three decimal places 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 e Press the Up O or Down O keys to ch
17. Reto Point 6 Aghi Point 7 LILo Point 8 LIhi Point 9 AJ L o Alarm 3 Low Set Point 10 AJh 1 Alarm 3 High Set Point 11 Limit 1 High Set Limit 2 Low Set Limit 2 High Set Alarm 2 Low Set Alarm 2 High Set Limit 3 Low Set Limit 3 High Set Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus Low numbers contain the two lower bytes high numbers contain the two higher bytes of the four byte integer Decimal precision is implied at three decimal places Watlow Series SD Limit 28 Chapter 5 Setup Display Parameter Name Settings Range Default Modbus Appears if Description Integer values for Modbus Mic uen in parentheses Read Write Modbus Device Address 1to 247 1 Thiscan 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 Baud Rate 9600 9500 Thiscan Output 2 is a communi bAud Set the baud rate at which the communi 19 2 only be set cations output cations occurs C 38 4 fromthe sp U controller front panel Lockout 0 0 no lockout 00 4RW Always active LOC Set the security level for the user inter 14 1 Programming face Page locked and Setup Page locked except for C BC 2 Program ming Page locked and Set Note For FM
18. adjustments to the end user i e many different temperature settings different heat loads The Operations Page on the Series SD limit is 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 Watlow Series SD Limit Chapter 1 Overview Install and Wire 1 32 DIN Series SD Limit Dimensions Front Top 97 8 mm gt 8 6 mm 53 6 mm aa 45 0 to 45 6 mm Senn po 2 11 in 1 77 to 1 79 in Ridges AL Tabs with Teeth Panel Cutout 30 7 mm Panel Thickness 22 2 to 22 5 mm 1 21 in 1 5 to 9 5mm 0 87 to 0 89 in 0 060 to 0 375 in 12 7mm Yam fe icim minimum Customer Front Panel dr ad Controller front and customer font panel 1e 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 97 8 mm 9 3 mm 52 1 mm 3 85 in gia
19. controller to provide greater accuracy Turn the INFOSENSE feature on or off with IN FOSENSE Enable 15 E n Setup Page Set the four numerical values supplied with Watlow s INFOS ENSE in the 15 P 15 P 9 15 P 3 and 15 P 4 parameters Contact your Watlow salesperson or Watlow author ized distributor for the pricing and availability of Wat low INFOSENSE products IS1 IS2 IS3 IS4 e 123 456 789 258 The four numerical values are found on the tag at tached to the sensor Watlow Series SD Limit Chapter 8 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 Na Temperature Reading from Sensor Temperature Actual Process Temperature Time Filter 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 m
20. 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 suppres sor 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 outputs Figure 13a 4 to 20 mA Process Input all model numbers Input impedance 100 dc only Limit does not supply power for the current loop r Al JC x LI om 11 o iL E Figure 13b Output 1 Mechanical Relay SD_L _J__ 2 A Form A e 240V ac maximum e 30V dc maximum See Quencharc note For use with ac or dc Minimum load current 10 mA Output does not supply power Mechanical Relay common 5 A normally open 6 el IN Figure 13c Output 2 Mechanical Relay SDL HJ 2 A Form A e 240V ac maximum e 30V dc maximum See Quencharc note For use with ac or dc e Minimum load current 10 mA Outp
21. for RW bokhlorlh 9h Output 1 L L o Limit 2 Low SP Lo ltolSP h 74 117 118 If QE Cjis set to L2 Lo Set the low limit set point value for Out RW L IP and is put 2 set to or Lolu LER 1 Limit 2 High SELolwSPR 75 119 120 DE Zis set to L2 Lo Set the low limit set point value for Out RAW L IPT and is put 2 set to or h 9h Ad l o 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 RAW Pr AL 2 1999 to 9999 if SEN is set to or voL t 1999000 to 9999000 A2 h 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 RW Pr AL 2 1999 to 9999 if GEM is set to or voL t 1999000 to 9999000 L J L o Limit 3 Low 5P loltol Ph 74 132 133 If GE Jis set to L3 Lo Set the low limit set point value for Out RAW and is put 3 set to or Lob U L J h Limit 3 High 5P loltol Ph 75 134 135 If t Jis set to L3 Lo Set the low limit set point value for Out RAW and is put 3 set to or ih 9h A3J L o 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 RW PAL 3 1999 to 9999 if GEM is set to or voL t 1999000 to 9999000 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 charact
22. 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 Up 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 Watlow Series SD Limit 39 Chapter 8 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 8 P L o and Set Point High 5 P Setup Page 4 High Limit of selected Sensor Range A Range High Range between High Limit of Sensor and Range Low Range High DA Set Point Range must be between Range High and Range Low Range EN Range Low Range between Low Limit of Sensor and Range High E Temperature 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 volta
23. function again Turn alarm silencing on or off with Alarm 2 or 3 Si lencing 5 2 or 5 L J Setup Page A Alarm High VAS Point Hysteresis Process Temperature Normal Operating Range Alarm enabled Temperature Hysteresis RS Alarm Low Set Point Startup Alarm Alarm triggered disabled here Time Watlow Series SD 41 Chapter 8 Features Communications 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 TIA 485 SD U _ 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 485 option directly supports communication with up to 32 devices on a network or up to 2477 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 in 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
24. infrared settings Output wiring is 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 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
25. left to the end user In highly specialized applications with lit tle variation in 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 is 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 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 plate to adapt it 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 l
26. precision with P g E C Process Decimal Places SPL o Set Point Low Limit Min operating range of Min operat 231 232 Always active SP Lo Set the low range for the set point sensor to 5 P H 0 100 if ing range J R W ther SE nj is set to type mocouple 328 to 5 P h 0 100 if 235 236 SE n is set to 328 R W RTD 1999 to 5 P h 0 001 if 239 240 5P h 1 Set Point High Limit SP hi Set the high range for the set point Calibration Offset CAL Offset the input reading FE rE Input Filter Ftr E Select filtering action Filter Value FLtr Set the input filter value SEnlis set to or 999 R W mA or volt and uolt V Set precision with P J E C Process Decimal Places r S L o to max operating range of sensor if is set to SP L 9 0 100 to 1472 if SEn is set to SP Lo 0 001 to 9999 if SEn is set to or volE Set precision with P J E C Process Decimal Places Max operat 233 234 ing range J RW ther type mocouple 237 238 1472 R W RTD 241 242 R W mA or V 999 and 999 to 999 0 999000 to 999000 0 no filtering 1 filter only the display value 2 filter the control input values 3 filter the display and control input values 85 86 0 89 R W 0 0 to 60 0 seconds 0000 to 60000 0 0 87 88 R W Note Some values will be rounded off to fit in the four character display Full values can be
27. read with Modbus Low numbers contain the two lower bytes high numbers contain the two higher bytes of the four byte integer Decimal precision is implied at three decimal places Always active Always appears Always active F E E Jis not set to OFF Watlow Series SD Limit 25 Chapter 5 Setup Display Parameter Name Settings Range Default Modbus Appears if Description Integer values for Modbus iar nuu in parentheses Read Write Dt Output 1 Function L IP Limit 2 LIPA 143R Always active Ot 1 Set Output 1 function 5d Output 1 Limit Sides 0 both high and 0 IIIRW Always active LSd1 Selects Output 1 limit active sides low sides active 1 high side active 2 low side active h9 5 Limit 1 Hysteresis 0 0 to 999 0 1 0 106 107 Always active hyS1 Set the hysteresis for the limit This deter 0000 to 999000 RW mines how far into the safe region the in put needs to move before the limit can be cleared Dt gj Output 2 Function OFF Off 0 0 164R W Output 2 is installed Ot2 Set Output 2 function P c AL Process Alarm and is not a communica 1 tions output L INN Limit 2 L5dg Output 2 Sides both 0 both high and 0 126R W DE Jlis set to LSd2 Selects Output 2 limit or alarm active low sides active PAL or IP sides h 9h 1 high side active Lob J 2 low side active 4Y52 Out
28. set to 100 to represent 20 mA The indication on the dis play would then represent percent humidity and range from 0 to 100 percent with an input of 4 to 20 mA Select the low and high values with Units Scale Low c 9 L o and Units Scale High c 8 5 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 for limit sides 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 is triggered what action it takes and whether it turns off automatically when the alarm condition is 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
29. settings Solid state relay option 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 Watlow Series SD Limit 44 Chapter 8 Features Indication Getting limit message L Lh A Lg b LIE L L Lo L 8G Lolor L lol Getting alarm message ACh JorlAJh Adlolor Ajlol Limit or alarm is occurring when it should not Limit or alarm output indication is 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 is 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 is 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 displa
30. 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 Watlow Series SD Limit 7 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 screwdriver Installing the 1 8 DIN Series SD Limit Panel Retention Collar Mounting Bracket 14 Bezel Locating Hole Slot Arrows indicate the Hook direction of pull to remove the connectors Release Tab 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 Slide the retention collar over the limit with the locating holes facing the back of the limit Slide the mounti
31. 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 GC 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 OC setting in the Setup Page 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 e Press the Advance Key to move through the pa rameter prompts At the end of the operations pa rameters press the Advance Key to return to the Home Page e Press the Up Cor Down Qkeys to change the pa rameter value e Press the RESET Key at any time to return to the Home Page Operations Page defaults gt L o Limit 1 Low Set Point H I Limit 1 High Set Point L o Limit 2 Low Set Point H jLimit 2 High Set Point L o Alarm 2 Low Set Point H Alarm 2 High Set Point Lo Limit 3 Low Set Point 4 Limit 3 High Set Point o Alarm 3 Low Set Point 1 Alarm 3 High Set Point fo xoi M ao aoi FF XJ bu bu fu NY Pu NG NG Note Hardware confi
32. their relay contacts Each relay output is isolated from the blocks above and is 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 High Nominal voltage 100 to 240V ac L1 L2 Figure 11b Low Voltage AC Power Wiring SD L LJ Low Nominal voltage 24x ac dc Class 2 power source required for agency compliance Watlow Series SD Limit 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 this limit to a power source and to electri cal sensors or 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 smal
33. 0 Output 3 is a process O3 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 RW V 0000 to 10000 Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus Low numbers contain the two lower bytes high numbers contain the two higher bytes of the four byte integer Decimal precision is implied at three decimal places Watlow Series SD Limit 27 Chapter 5 Setup Display Parameter Name Settings Range Default Modbus Appears if Description Integer values for Modbus eL in parentheses Read Write Upper Display Look nonE None 0 1 44R W Always active Selects what value appears in the upper display Lower Display Look Selects what value appears in the lower display LgSP Pr oc 1 Process Value L LL o Limit 1 Low Set Point 2 Lih Point 3 Leto Point 4 Lehi Point 5 Reto Point 6 Alhi Point 7 LILo Point 8 LIhi Point 9 AJ o Alarm 3 Low Set Point 10 AJA 1 Alarm 3 High Set Point 11 Limit 1 High Set Limit 2 Low Set Limit 2 High Set Alarm 2 Low Set Alarm 2 High Set Limit 3 Low Set Limit 3 High Set nonE None 0 L Lh 1 3 45R W Always active Proc 1 Process Value L LL o Limit 1 Low Set Point 2 Lih Point 3 Leto Point 4 Lehi Point 5
34. 0 37 in 45 0 to 45 5 mm 2 05 in gt 1 77 to 1 79 in Panel Cutout 45 0 to 45 5 mm 52 1 mm 1 77 to 1 79 in 2 05 in Panel Thickness 1 5 to 9 5 mm 0 060 to 0 375 in 4 Contact your local Greenlee supplier for the appropriate punch kit and cutout tools required for rapid mounting T jm H Model Number Customer Front Panel cM 13 7 mm 0 54 in 0 6 mm 0 025 in maximum gap between minimum 7 9mm ka 0 31 in minimum controller front and customer front panel Back 47 2 mm 1 86 in 29 3 mm 1 15 in Back arm 9 O ma O N r3 O Je TI O Ja 59 2 mm Olu 2 33 in O le on EE Ol Q Watlow Series SD Limit 4 Chapter 2 Install and Wire 1 8 DIN Series SD Limit Dimensions Front horizontal 99 8 mm 3 93 in 52 8 mm 2 08 in 92 0 to 93 0 mm 3 62 to 3 65 in Panel Cutout Panel Thickness Gatto TAN 1 52 to 9 53 mm 0 060 to 0 375 in 31 8mm 1 25 in minimum 7 9 mm 0 31 in minimum Back horizontal 97 8 mm 3 85 in Back vertical Model Number 97 8 mm 3 85 in 2 40 in Front vertical 99 8 mm 3 93 in
35. 2 Status 23 Limit Low 3 Status 23 Limit or Alarm Hysteresis 41 Limit Tripped Operation 20 Lockout 29 Lockout for FM Approval 21 29 39 Lower Display 19 Lower Display Look 28 Maximum Recorded Ambient Temp 32 Minimum Recorded Ambient Temp 32 Modbus 42 Modbus Device Address 29 31 Modbus RTU Protocol 42 Model Number information 49 National Electric NEC 11 Operating Environment 48 Operating Ranges 47 Operations Page 38 Operations Page Overview 20 Operations Parameters Table 30 Ordering Information 49 Output 1 Function 25 Output 1 Limit Sides 25 Output 1 Type 32 Output 2 Function 26 Output 2 Hysteresis 26 31 Output 2 Logic 26 Output 2 Sides 26 Output 2 Type 33 Output 3 Calibrate 1 0 Volt 34 Output 3 Calibrate 16 0 mA 34 Output 3 Calibrate 4 0 mA 34 Output 3 Calibrate 9 0 Volt 34 Output 3 Function 26 Output 3 Hysteresis 27 31 Output 3 Logic 27 Output 3 Process Value 32 Output 3 Sides 26 Output 3 Type 33 Output Types 47 Overview 2 Parity 42 PDA software 43 PID controller 3 49 Power 48 Power Supply 17 Power Type 33 Process Alarms 40 Process Decimal Places 24 Process Output 3 Cal Procedure 36 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 32 Restore User Settings 32 Restoring Factory Calibration 36 Right Display 19 RTD Input Cal Procedure
36. 3 With A1 1995 Safety Requirements of electrical equipment for mea surement control and laboratory use Part 1 General requirements Dean Hoffmann Winona Minnesota USA Name of Authorized Representative Place of Issue General Manager August 2002 Title of Authorized Representative Date of Issue Signature of Authorized Representative 2287 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 49 0 7253 9400 44 Watlow France S A R L Immeuble Somag 16 Rue Amp re 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 39 02 4588841 Fax 39 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 G
37. 32 to 3 200F or 0 to 1 760 C Type B 32 to 3 300F or 0 to 1 816 C DIN 328 to 1 472 F or 200 to 800 C Process 1 999 to 9 999 ur Thermocouple Input e Calibration accuracy 0 196 of input span 1 C at standard conditions Temperature stability 0 2 degree per degree change in ambient for J K T N E F 0 3 for C and D 0 4 for B R excluding 0 to 100 C and S excluding 0 to 100 C 0 5 for R and S entire input accuracy range RTD Input Calibration accuracy 0 1 of input range 1 C at standard conditions Temperature stability 0 05 degree per degree change in ambient Process Input e Voltage input ranges Accuracy 10mV 1 LSD at standard conditions Temperature stability 100 ppm C maximum Milliamp input ranges Accuracy 20pA 1 LSD at standard conditions Temperature stability 100 ppm C maximum Output Types Open Collector Maximum voltage 42V dc Maximum current 250 mA Class 2 power source required Switched DC e 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 Maximum offstate leakage current 100 pA rms e For resistive loads only must use RC suppression for inductive loads Watlow Series SD Limit Appendix Electromechanical Relay Form A Mi
38. Analog Output 3 Units 27 Appendix 47 Automatic send data control 17 Back Views 10 Baud Rate 29 42 Biasing and termination 17 Calibration Offset 25 31 39 Comm6 42 Communications 42 48 Current Process Input Cal Procedure 36 data bits 42 Default Parameters 32 Dimensions 4 48 1 16 DIN 4 1 32 DIN 4 1 4 DIN 5 1 8 DIN 5 Display Intensity 32 EIA TIA 232 to 485 converter 17 EIA TIA 232 to EIA TIA 485 converter 42 EIA TIA 485 48 Error condition 20 Error Messages 46 Ethernet gateway 18 Factory Page and Calibration 32 Factory Page Overview 22 Features 37 Filter Time Constant 39 Filter Value 25 Filtered Process Value 23 Functionality Matrix 48 Ground loops 11 Home Page 23 Home Page Overview 20 How to use 3 INFOSENSE 2 24 38 Infrared Data Communications 43 Input accuracy ranges 47 Input Calibrate 1 0 Volt 33 Input Calibrate 16 0 mA 34 Input Calibrate 4 0 mA 34 Input Calibrate 9 0 Volt 34 Input Error 23 Input Error Latching 27 Input Filter 25 Inputs 38 Inputs and outputs 2 Install and Wire 4 Installation 6 1 16 DIN 7 1 32 DIN 6 1 4 DIN 9 1 8 DIN 8 Instant HMI 43 IP65 NEMA 4X seal 6 IrDA 43 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
39. Canadian Standards Association for testing Terminals 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 1t06 SD C KorJ and1to4 SD F yare 0 8 Nm 7 in Ib ter minal blocks 12 13 14 are 0 9 Nm 8 in 1b Solid or tinned wire recommended 1 Process output is not a retransmit output Power e 100 to 240V ac 10 15 50 60 Hz 5 e 24Vx ac dc 1096 15 50 60 Hz 596 Class 2 power source is required for low voltage model e 10VA maximum power consumption 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 Behind DIN Size Panel Width Height max 1 32 97 8 mm 52 6 mm 29 7 mm 3 85 in 2 07 in 1 17 in 1 16 97 8 mm 52 1 mm 52 1 mm 3 85 in 2 05 in 2 05 in B 97 8 mm 52 8 mm 99 8 mm EN sesin 2 08 in 3 93 in 1 8 97 8 mm 99 8 mm 52 8 mm Horizontal 3 85 in 3 93 in 2 08 in 1 4 101 1 mm 99 8 mm 99 8 mm 3 98 in 3 93 in 3 93 in Functionality Matrix Cie Limit Alarm Process 485 Comm Input Input 1 Part nl EEE aa Note These specifications are subject to change without prior notice Watlow Series SD Limit 48 Appendix Ordering Information and Model Numbers 2302
40. DC Ne Vs SD SD ISD E 354 3 4 3 4 yw 202 EWwTA45 B 1KO T R Converter A 1209 T R GND 1KQ Figure 17c Wiring bias and termination resistors Controllers must be wired in a daisy chain configuration Watlow Series SD Limit 17 Chapter 2 Install and Wire Ethernet Gateway The EM00 GATE 0000 is a bridge that allows up to 32 Watlow controllers to be directly connected to an Ethernet network EMOO GATE 0000 Ethemet Gateway Modbus Data Protocol Serici Number JOO000cYYWW The gateway provides a bridge for Modbus mes sages between the Ethernet bus and EIA 485 or EIA 232 links The Gateway supports full product configuration monitoring and configuration of run time parameters via MODBUS TCP over TCP IP For more information go to www watlow com and search on EM Gateway Note The 32 controller maximum is a functional limitation of Ethernet O 24V ac dc EIA 485 RB bai Figure 18a Connecting to the Watlow EM Gateway Ethernet to EIA TIA 485 Serial Modbus connection Controllers must be wired in a daisy chain configuration Note UL Approved Class 2 power supply required as EM Gateway power source 24V dc part 0830 0474 000 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 19293 WATLOW LIMIT SD 1 2 19 26 3 e 1 8 DIN Vertical 1 4 DIN
41. 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 all the wiring connectors from the back of the limit 2 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 Watlow Series SD Limit 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 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 Installing the 1 16 DIN Series SD Limit Panel Retention Collar Hook Locating Hole
42. OF bu 22 34 0 3 4 A 22 34 Watlow Series SD 52 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 9C or L H or 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 II Pollution degree 2 Rated Voltage 100 to 240V ac or 24Vx ac or dc Rated Frequency 50 or 60 Hz Rated Power Consumption 10VA maximum Meets 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 A1 1998 Electrostatic Discharge Immunity EN 61000 4 3 1997 Radiated Field Immunity EN 61000 4 4 1995 Electrical Fast Transient Burst Immunity EN 61000 4 5 1995 With Al 1996 Surge Immunity 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 1 199
43. Output 3 Sides 0 both high and 0 141RW DE Jlis setto LSd3 Selects Output 3 limit or alarm active low sides active Pr ALt or L IP sides 1 high side active 2 low side active h953 Output 3 Hysteresis 0 0 to 999 0 1 0 136 137 is set to hyS3 Set the hysteresis for the output This de 0000 to 999000 R W Pr AL olar 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 0 190 R W is set to Lgc2 Select the output condition in the alarm open on alarm 1 Pr AL state LBt3j Alarm 3 Latching off 0 0 138R W lis set to LAt3 Turn alarm latching on or off on 1 PAL Alarm 3 Silencing off 0 no silencing 0 139 R W is set to SiL3 Turn alarm silencing on or off on 1 silencing Pr AL d Pj Alarm 3 Message off 0 no message 1 140 RW is set to dSP3 Displays an alarm message when an on 1 message Pc RL alarm is active R8 3 U Analog Output 3 Units milliamperes 0 0 176R W Output 3 is a process A03 U Set the analog process output units volts 1 output SD F 03Lo Analog Output 3 Scale Low 0 00 to 20 00 mA 4 00 mA 177 178 Output 3 is a process 03 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 03 h Analog Output 3 Scale High 0 00 to 20 00 mA 20 00mA 179 18
44. S D IM DIN Sizes 3 6 8 9 or 4 3 1 32 DIN 6 1 16 DIN 8 1 8 DIN Vertical 9 1 8 DIN Horizontal 4 1 4 DIN Control Type L L Limit Control Power Supply Hor L H 100 to 240V ac L 24Vx 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 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 comm A None R Infrared Communications Ready not availak Display Colors RG Red Green RR Red Red Not available on 1 32 DIN UL approved PID control version is available For more information go to www watlow com or contact your local Watlow representative Watlow Series SD Limit 49 Appendix Index Access Lockout 39 Active Output Indicator Lights 19 Address 42 Adjusting the limit set point value 20 Advance Key 19 Agency Approvals 48 Alarm 2 High 30 Alarm 2 Latching 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 41 Alarm Low 2 Status 23 Alarm Low 3 Status 23 Alarm Message 20 Alarm Set Points 40 Alarm Silencing 41 Alarms 40 Ambient Temperature 32 Analog Output 3 Scale High 27 Analog Output 3 Scale Low 27
45. Set sensor point 3 code YES 15 4 INFOSENSE 4 0 to 999 500 RW 1 amp n issetto IS P4 Set sensor point 4 code YES Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus Low numbers contain the two lower bytes high numbers contain the two higher bytes of the four byte integer Decimal precision is implied at three decimal places Watlow Series SD Limit 24 Chapter 5 Setup Display Parameter Name Settings Range Default Modbus Appears if Description Integer values for Modbus p n E in parentheses Read Write 5c L o Process Scale Low 4 00 to 20 00 mA if 4 00 mA 73 74 is set to Sc Lo Set the low scale for process inputs is set to RW mA or uolEl 4000 to 20000 1 00 to 10 00V if Enlis LOOV TT 78 set to RW V 1000 to 10000 5c h Process Scale High 4 00 to 20 00 mA if 20 00mA 75 76 is set to Sc hi Set the high scale for process inputs is set to RW mA or jgtt 4000 to 20000 1 00 to 10 00V if Enlis 5 00V 79 80 set to RW V 1000 to 10000 c 9 L o 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 RW or vol E Set precision with P J EC Process Decimal Places e 9 4 Units Scale High 1999 to 9999 9999 83 84 is set to rg hi Set the high range for process input units 1999000 to 9999000 RW or vol t Set
46. V dc Not recommended for switching mechanical relays Switched DC 6 to 12V dc 8 do l ya li Output supplies power dc Internal Circuitry Figure 14c Output 2 EIA TIA 485 SDL U e Isolated 50V dc Half duplex For more communications information see the Features chapter Watlow Series SD Limit 14 Chapter 2 Install and Wire A 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 or 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 suppres sor 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 Figure 15a Output 3 Mechanical Relay SD_L ___E _ 5 A Form C 240V ac maximum e 30V dc maximum See Quencharc note For use with ac or dc e Minimum load current 10 mA Output does not supply power Mechanical Relay e x _12 common 13 normally o
47. agram applies to your unit Figure 10a 1 32 DIN SD3L J Figure 10c 1 8 DIN Horizontal SD9L J ka ie e S ol e N EN a D D OLO 1068 Figure 10e 1 4 DIN SD4L J Figure 10b 1 16 DIN SD6L _J__ e le Dy 2 EN a D gt gt gt m DTO O10 1068 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_L _J_A ____ Watlow Series SD Limit 10 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 or 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 process outputs AN WARNING If high voltage is ap plied to a low voltage limit irre versible damage will occur 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
48. ange 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 pr eT 1n parentheses Read Write Sensor Type Ec 0 0 70 R W Always active SEn Set the analog sensor type rtd PAA 2 volE 3 Thermocouple Linearization J 0 d 6 0 71RW issetto Ec Lin Set the analog input thermocouple H 1 PTII 7 linearization E2 8 g8 C 59 a CT bao 06 C F Temperature Units F Fahrenheit 0 0 140 R W is set to C F Set the temperature units for thermocou C Celsius 1 or rtg ple and RTD inputs S dEC Temperature Decimal Places 0 0 00 41RW is set to S dEC Set the decimal places for the displayed 860W ol rEd input value for thermocouple and RTD types 2 gEC Process Decimal Places 0 0 00 42R W is set to P dEC Set the decimal places for the displayed 060W or vol E input value for process types 8608 0 000 3 15 En INFOSENSE no 0 0 91R W Always active IS En Enable the sensor feature which synchro YES 1 nizes the controller with a Watlow sensor TSP 1 INFOSENSE 1 0 to 999 500 92R W 15 EnJis set to IS P1 Set sensor point 1 code YES d5P9 INFOSENSE 2 0 to 999 500 93R W 1S n is set to IS P2 Set sensor point 2 code JgES 15 P3 INFOSENSE 3 0 to 999 500 ARW ISEn lis set to IS P3
49. ation and programming selections deter mine what parameters appear in the Factory Page Factory Page AM 16 Ambient Temperature n Minimum Recorded Ambient Temperature A Maximum Recorded Ambient Temperature Display Intensity A D E 3j Output 3 Process Value r ESE Restore Factory Calibration 5 r r Restore User Settings 5 r 5 Save User Settings JFL t Default Parameters 0 64 Output 1 Type 8 697 Output 2 Type 0 693 Output 3 Type 5 id Software ID SUE r Software Version 5 b L d Software Build Number PL Ur Power Type 5n Serial Number 1 ud Serial Number 2 t c 5 B Thermocouple 50mV Thermocouple 0mV Thermocouple 32 F RTD 15 ohm RTD 380 ohm Input Calibrate 1 0 Volt Input Calibrate 9 0 Volt Input Calibrate 4 0 mA 6 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 DP 5 Oo J d ID iele fol le Fu E ED Watlow Series SD Limit 22 Chapter 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 T
50. ay improve the performance of the limit in a noisy or very dynamic system Select filter options with Input Filter FE rE Se lect the Filter Value with Setup Page Unfiltered Input Signal temperature Time Filtered Input Signal temperature Time 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 0 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 able to change and view all prompts in the Op eration and Factory Pages pi 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 tion Page are locked
51. 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 is now ready for use with the controller The above guidelines are the general steps to establishing communications with controllers 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 c
52. 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 devices 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 sys
53. e Calibrating the Series SD B 16 Input Calibrate 16 0 mA no NA Always active A 16 Calibrate the process current input to YES 16 0 mA see Calibrating the Series SD G3 lu Output 3 Calibrate 1 0 Volt no NA The respective output is 03 1v The voltage process output transmits YES process 1 000V see Calibrating the Series SD 03 9 Output 3 Calibrate 9 0 Volt no NA The respective output is 03 9v The voltage process output transmits YES process 9 000 V see Calibrating the Series SD 03 4 8j Output 3 Calibrate 4 0 mA no NA The respective output is O3 4A The current process output transmits YES process 4 000 mA see Calibrating the Series SD 03 16 Output 3 Calibrate 16 0 mA no 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 communications Watlow Series SD Limit 34 Chapter 7 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 FACE use the Advance key to select a prompt The last prompts on the Factory Page are the input and output calibration prompts You can restor
54. e 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 screwdriver one flat head screwdriver Installing the 1 4 DIN Series SD Limit Retention Collar Panel Mounting 27 Bracket pes Locating Hole lot Gasket Bezel Arrows indicate the direction of pull to remove the connectors 1 Make the panel cutout using the mounting template dimensions in this chapter 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 tight
55. e 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 e 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 E c 5 Q to YES 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 E c O BG to 9ES Press the Ad vance Key to store 0 000 mV input 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 Calibrat
56. eci 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 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 and 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 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 102030 Control Input
57. en 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 mounting bracket Removing the 1 4 DIN Series SD Limit 1 Remove all 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 2 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 dis engaged hooks from snapping back into the slots 3 Repeat this operation to disengage the hooks on the bottom side of the mount ing bracket 4 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 Note Series VAT style mounting brackets are also available Contact your Watlow representative Watlow Series SD Limit 9 Chapter 2 Install and Wire Series SD Family Back Views in Scale NOTE The SD model number determines which di
58. er display Full values can be read with Modbus Low numbers contain the two lower bytes high numbers contain the two higher bytes of the four byte integer Decimal precision is implied at three decimal places Watlow Series SD Limit 30 Chapter 6 Operations Display Parameter Name Settings Range Default Modbus Appears if Description Integer values for Modbus Mea neu in parentheses Read Write A3 h Alarm 3 High Process range of sensor if 1500 134 135 A3 hi Set the high alarm set point for Output is set to or RAW 3 1999 to 9999 if is set to or volt 1999000 to 9999000 h45 N 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 h450 Output 2 Hysteresis 0 0 to 999 0 1 0 121 122 DE Zis set to hyS2 Set the hysteresis for the alarm or limit 0000 to 999000 R W Pe AL or L IN output This determines how far into the safe region the input needs to move be fore the output can be cleared h453 Output 3 Hysteresis 0 0 to 999 0 1 0 136 137 is set to hyS3 Set the hysteresis for the alarm or limit 0000 to 999000 R W Pe AL or L IP 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 t
59. ge 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 is 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 0 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 is permitted for analog input signals that have a reversed action For example 50 psi 4 mA and 10 psi 20 mA Select the high and low values with Process Scale Low C L o and Process Scale High 5 C 1 Setup Page 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 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
60. guration and programming selections deter mine what parameters appear on the Operations Page Watlow Series SD Limit 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 O 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 O 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 programming selections deter mine what parameters appear in the Setup Page Setup Page gt O EL dE E P P P P L wh L o j Jo elun Inn ooon n AA d d Sil kal enitn n IKA kh a Aah r o P9 D pang m m p m Fa ry C3 a m o uu Pu F O W m uc W F NO n NY r 39 pang W Pi w ag SEINE ny cal En Sensor Type 2 Linearization F 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 Units Scale Low Units Scale
61. hanges 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 is turned off 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 ment
62. he alarm condition 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 Rt L AE 2 or LAE J Setup Page The alarm state begins when the temperature A reaches the Alarm High Set Point Alarm High TE Set Point Y 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 A the operator at this point A non Pe Low latching alarm would turn off Set Point Temperature Process Temperature automatically Time Alarm Silencing Alarm silencing has two uses 1 Itis 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 alarm function 2 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
63. hree After 60 seconds with no key presses the controller reverts to the Home Page Display Parameter Name Settings Range Default Modbus Appears if Description Integer values for Modbus arte cle 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 F E rE Jis set to upper left in 1 32 DIN display 1999000 to 9999000 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 F E rE Jis set to ue in the upper left in 1 32 DIN display 1999000 to 9999000 or both Set Value Limit 1 High Set Point SP L o to SP h 75 104 105 4 Sg his set to Displays the high limit set point value R W or h 19h for Output 1 in the lower right in the 1 32 DIN display Er In Input Error None 0 NA 24R There is an analog in Indicate an input error state Error 1 put error Lilo Limit Low 1 Status None 0 NA 29R Output 1 is in the low Indicate a low limit at output 1 Limit 1 limit condition Lih Limit High 1 Status None 0 NA 30R Output 1 is in the high Indicate a high limit at output 1 Limit 1 limit condition Leto 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 Lho Limit High 2 Status None 0
64. ion 32 Ec 32 to YES 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 RTD Input Procedure Equipment e 1 KQ decade box with 0 010 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 S2 with 20 to 24 gauge wire 3 Enter 15 000 from the decade box Allow at least 10 seconds to stabilize Set RTD Calibration 150 c 15 to YES Press the Advance Key to store the 15 009 input and move to the next prompt 4 Enter 380 002 from the decade box Allow at least 10 seconds to stabilize Set RTD Calibration 3800 c 380 to YES 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 Calibration 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 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 IV uy to YES Press the Advance Key to store the 1 00V input and move to the next prompt
65. l 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 Figure 12a Thermocouple Input all model numbers Thermocouples are polarity sensitive The negative lead usually red must be connected to terminal 11 Input impedance 20 MO Figure 12b RTD Input 100 DIN curve 0 00385 0 G 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 S2 8m Sisi MESI TI AB 1 2 wire RTD ee e MoE gi S110 ez S311 Taa 3 wire RTD Figure 12c 1 to 10V dc Process Input all model numbers Input impedance 20 kQ dc only Watlow Series SD Limit 12 Chapter 2 Install and Wire A 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 or 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
66. ladstone Park Drive Tullamarine Victoria 3043 Australia Telephone 61 39 335 6449 Fax 61 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
67. lows for the fastest com munication For compatibility with other devices reduc ing noise susceptibility or increasing communications 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 made 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 pa
68. n 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 O 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 ng a To change the other 15 selections press the Advance Key to select a place in the page Pitol 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 settings 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
69. ne the cause for your action 4 Incases of manufacturing defect we will enter a repair order replacement order or issue credit for material returned 5 To return products that are not defective goods must be be in new condition in the orig inal 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 Ifthe unit is unrepairable it will be returned to you with a letter of explanation Repair costs will not exceed 50 percent of the original cost 7 Watlow reserves the right to charge for no trouble found NTF returns not to exceed 20 of the original net price The Series SD User s Manual is copyrighted by Watlow Winona Inc December 2002 with all rights reserved 2301 Table of Contents Chapter 1 Overview 2 Chapter 2 Install and Wire 4 Dimensions 4 Installation 6 WING aou et eR ERE Seda hed 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 22 Chapter4 HomePage 23 Chapter5 SetupPage 24 Chapter 6 Operations Parameters Table 30
70. ng 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 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 all the wiring connectors from the back of the limit Using the Phillips screwdriver unscrew the four screws on the mounting bracket until they dis engage from the retention collar 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 Watlow Series SD Limit 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 cas
71. nimum load current 10 mA Rated resistive 2 A 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 Electromechanical Relay Form C Minimum load current 10 mA Rated resistive 5 A 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 Process Range selectable 0 to 20 mA 4 to 20 mA 0 to 5V dc 1 to 5V de 0 to 10V de 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 maximum load resistance Resolution dc ranges 2 5 mV nominal mA ranges 5 pA nominal Calibration accuracy dc ranges 15 mV mA ranges 30 pA 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 M RTU via IRCOMM over IrDA Sampling rate 20 Hz Agency Approvals Factory Mutual Class 3545 Temperature Limit Switches UL Listed Process Control UL31219 UL 61010C 1 c UL CE IP65 NEMA 4X File E185611 UL is a registered trademark of the Underwriter s Laborato ries Inc Submitted to
72. ntroller review your configuration informa tion to 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 assistance 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 Complete model number 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 warranty Return Material Authorization RMA 1 Call Watlow Customer Service 507 454 5300 for a Return Material Authorization RMA number before returning any item for repair We need this information e Ship to address Bill to address e Contact name Phone number e Method of return shipment Your P O number e Detailed description of the problem Any special instructions e Name and phone number of person returning the product 2 Prior approval and an RMA number from the Customer Service Department is needed when returning any unused product for credit 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 we receive your return we will examine it and determi
73. o 247 1 Thiscan Output 2 is a commu Addr Set the device address for communica only be set nications output tions Every controller on a network fromthe Sp U must have a unique address controller front panel C F Temperature Units Fahrenheit 0 0 40R W is set to C F Set the temperature units for thermocou Celsius 1 or c td ple and RTD inputs CAL Calibration Offset 999 to 999 0 85 86 Always appears CAL Offset the input reading 999000 to 999000 RAW 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 numbers contain the two lower bytes high numbers contain the two higher bytes of the four byte integer Decimal precision is implied at three decimal places Watlow Series SD 31 Chapter 6 Operations Factory Page and Calibration To go to the Factory Page press both the Up O and Down Q keys for six seconds from the Home Page will appear in the upper display and PA 9E in the lower display e Press the Advance Key to move through the parameter prompts e Press the Up O or Down Q keys to change the parameter value e Press the RESET Key at any time to return to the Home Page Display Parameter Name Settings Range Default Modbus Appears if Description Integer values fo
74. ocation 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 c 5 parameter in the Factory Page For saving and restoring parameters see Chapter Eight Features For details 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 cases the OEM manufacturer may set most of these parameters because the equipment operates with little variation i 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
75. pen Ke e WS 14 normally closed Figure 15b Output 3 Solid state Relay SD L K e 0 5 A maximum Form A e 24 to 240V ac See Quencharc note Minimum load current 10 mA Maximum leakage current 100 uA Not for use with direct current dc Output does not supply power Solid state Relay Solid state Switch O x 12 common i COM 12 amp 13 normally open Yof f NO e m AG Internal Circuitry Figure 15c Output 3 Switched DC SD_L ___C _ Maximum supply current 30 mA dc e Supply voltage 6 to 12V dc Not for switching mechanical relays Output supplies power Switched DC t 61oi2V dc E o 5 i dc 12 a 18 dc i A i 1 1 ES 14 common d AB m i Internal Circuitry Watlow Series SD Limit 15 Chapter 2 Install and Wire A 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 or 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 suppres sor Quencharc brand name which is a tradema
76. process alarm set points with the Operations Page parameters Watlow Series SD Limit Chapter 8 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 value 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 before the limit or alarm output can be cleared Hysteresis is a zone inside each limit or alarm set point This zone is defined by adding the hysteresis val ue to the low set point or subtracting the hysteresis val ue from the high set point View or change limit or alarm hysteresis for output 1 2 or 3 Hysteresis h 9 5 h9 5g or h 95 3 Setup Page A Mion side Alarm RH Alarm High Set Point y Alarm Hysteresis Normal Operating Range lemperature 4 alarm Hysteresis Alarm Low Set Point Low Side Alarm Range Time Alarm Latching A latched alarm will remain active after t
77. 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 O and Down Q keys together for six seconds until appears in the upper display and PA 9E appears in the lower display 2 Pressthe Advance Key to step through the menu until the UJ 5 r r prompt appears 3 Use the Up Key O to select _ 9 5 in the upper display 4 Press the RESET Key to exit the Factory Page Operations Page Watlow s patented user defined menu system im proves operational efficiency The user defined Opera tions 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 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 normal ly located in the Setup Page is placed in the Operations Page it is accessible through both If you change a pa rameter in the Operations Page it is automatically 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 To change the list of parameters in the Operations Page hold dow
78. put 2 Hysteresis 0 0 to 999 0 1 0 121 122 DE Zis set to hyS2 Set the hysteresis for the output This de 0000 to 999000 R W Pr AL or L INN termines how far into the safe region the input needs to move before the output can be cleared 9c Output 2 Logic AL C closed on alarm 0 AL 0 0 169R W ft Zis set to Lgc2 Select the output condition in the alarm AL jopen on alarm 1 Pr AL state LA Alarm 2 Latching nl At off 0 nLAL 0 123RW Ge Zis set to LAt2 Turn alarm latching on or off LAE on 1 Pc RL 5 LO Alarm 2 Silencing OFF off 0 no silencing OFF 0 124R W DE lis set to SiL2 Turn alarm silencing on or off On on 1 silencing Pr AL d5P2 Alarm 2 Message off 0 no message D 125 R W is set to dSP2 Displays an alarm message when an on 1 message Pr AL alarm is active Ot 3 Output 3 Function Off 0 0 172R W Output 3 is installed Ot 3 Set Output 3 function Pr AL Process Alarm 1 Limit 2 Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus Low numbers contain the two lower bytes high numbers contain the two higher bytes of the four byte integer Decimal precision is implied at three decimal places Watlow Series SD Limit 26 Chapter 5 Setup Display Parameter Name Settings Range Default Modbus Appears if Description Integer values for Modbus Is n UE in parentheses Read Write L5d3
79. r 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 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 gt nonE 0 None L LL o 1 Limit 1 Low L LH 1 2 Limit 1 High L Z H 4 Limit 2 High P 16 A Z L o 5 Alarm 2 Low 63 AZ h 1 6 Alarm 2 High L3 Lo 7 Limit 3 Low L J H 8 Limit 3 High A J L o 9 Alarm 3 Low H3 h 10 Alarm 3 High h 95 1 11 Limit Hysteresis 1 Setup Page h 3S9 12 Limit or Alarm Hysteresis 2 Setup Page h 45 3 13 Limit or Alarm Hysteresis 3 Setup Page Adder 14 Modbus Device Address Setup Page C F 15 Temperature Units CAL 16 Calibration Offset Programming Page parameters Modbus register numbers P1 through P16 are 48 through 63 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 e Press the Advance Key to move through the pa rameter prompts e Press the Up O or Down Q keys to change the pa rameter value of Read Write R W parameters e Press the RESET Key at any time to return to the Home Page Note Hardware configur
80. r Modbus ric aenea in parentheses Read Write ANTO Ambient Temperature 50 0 to 300 0 F NA 268R Always active AMb Displays the current calculated ambient 269R temperature A P In Minimum Recorded Ambient 50 0 to 300 0 F NA NA Always active A Mn Temperature Displays the minimum recorded ambient temperature R A Maximum Recorded Ambient 50 0 to 300 0 F NA NA Always active A MA Temperature Displays the maximum recorded ambient temperature dSPL Display Intensity 15 to 10096 duty 100 NA Always active ASPL Increase or decrease the brightness of the upper and lower display A O t 3 Output 3 Process Value 00 00 to 22 00 units NA 276R Process output installed A Ot3 Monitors Process Output 3 value via for Output 3 Modbus rESt Restore Factory Calibration no 0 0 199R W Always active rESt Replaces the user calibration parameters gESJ 1 with the factory calibration parameters USr r Restore User Settings no 0 no 0 200R W Always active Usrr Restores the customer s configured set JgESJ 1 tings US rc 5 Save User Settings no 0 no 20010 RW Always active USr SI Saves the current customer configured JgESJ 1 settings dFLEt Default Parameters no 0 no 0 198R W Always active dFLt Reset all parameters to their YES 1 default values 0 29 Output 1 Type cL AY mech relay 2 193R Always active Oty1 Displays the hardware type for Output 1 mech relay 2 Watlow Series SD Limit
81. rk 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 Figure 16a Output 3 Open Collector SD L C Maximum current sink 250 mA dc e Maximum supply voltage 42V dc For inductive loads see Quencharc note Output does not supply power Class 2 power source required for agency compliance Open Collector 42V dc maximum KEY i dor 12 e ms 12 dc O Load NG dc 13 y e z 13 open collector ed e 14 common I I 14 Internal Circuitry Figure 16b Output 3 Process SD L F Analog output scalable from 0 to 10V dc or 0 to 20 mA dc Load capability voltage 1 kQ minimum current 800 O maximum Output supplies power Cannot use voltage and current output at the same time This output is not a retransmit output 12 amps 13 volts Watlow Series SD Limit 16 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 EIA TIA 485 The con verter selected must have a two wire mode Some
82. rty 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 which is a Windows based software library for Modbus RTU communications For further information on the WATCONNECT software library or to download the Comm6 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 ditional 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 Watlow Series SD 42 Chapter 8 Features 6 Test the
83. s such as semiconductor clean rooms This feature reduces the use of paper to record instrument informa tion as well as human transposition errors PUMALAG 1 Nayon Logit Watlow Series SD 43 Chapter 8 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 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
84. series SD User s Manual mim mt WATLOW LIMIT SD 1 LIMIT SD LIMIT SD cn Ju Limit Controller CE TOTAL CUSTOMER SATISFACTION 3 Year Warranty I WATLOW 1241 Bundy Boulevard Winona Minnesota USA 55987 Phone 1 507 454 5300 Fax 1 507 452 4507 http www watlow com Registered Company Winona Minnesota USA 0600 0041 0005 Rev A Made in the U S A A ALA D OTT December 2002 15 00 CAUTION or WARNING Electrical Shock Hazard CAUTION or WARNING Safety Information We use note caution and warning symbols throughout this book to draw your attention to important 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 equipment and performance Be especially careful to read and follow all cautions that apply to your application A WARNING safety alert appears with information that is important for protecting you others and equipment from damage Pay very close attention to all warnings that apply to your application The safety alert symbol an exclamation point in a triangle precedes a general CAUTION or WARNING statement The electrical hazard symbol A 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 co
85. tem 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 8 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 h 120V ac LI SG 9V de see note gi 9V Son a g Te G N g sal TURK x lt x BO 3 u 9 l amp 4 Aa T R 4 QG BO aa 7 ft comms cable d Watlow p n 0219 0217 0000 Figure 17b CMC Converter Non isolated converter ADA485L 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 Power Supply
86. 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 is 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 EIA TIA 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 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 al
87. upper dis play value to match the value from the volt amme ter 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 val ue and move to the next prompt Rewire for operation and verify calibration Restoring Factory Calibration Press the Up O and Down Q keys together 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 pa rameters until the appears Use the Up Key O to select 9 5 in the upper display Press the RESET Key to exit the Factory Page Watlow Series SD Limit 36 Chapter 7 Factory 8 Features Saving and Restoring User Settings 38 OperationsPage 38 Inputs INFOSENSE Sensing 38 CalibrationOfset 39 Filter Time Constant 39 Sensor Selection 39 Accesslockout 39 Set Point Low Limit and High Limit 40 Process Input High and Low Scale 40 High Range and Low Range 40 Alarms 2 2 2zc amp dalles IR FCR 40 ProcessAlarms 40 Alarm Set Points 40 Alarm Hysteresis 41 Alarmlatching 41 Alarm Silencing 41
88. urn 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 Process Value Limit high set point Use Up Oor Down Qkeys to raise or lower the high limit set point Limit Tripped Operation Operating in Limit Condition 15 15 715 L th Limit message alternates with high limit set point in lower display Process Value Output 1 indicator light is on Error condition Dashed lines Ec lall ths AeA Error message Error message alternates with limit and or alarm messages in lower dis Alarm Message 15 15 Process value 15 fi LL o Alarm message alternates in lower display The corresponding output indicator light is on Adjusting the limit set point value Adjust the limit set point in 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 Besure 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
89. ut does not supply power Mechanical Relay I O common 3 s normally open 41 et Internal Circuitry Watlow Series SD Limit 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 or 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 suppres sor 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 Figure 14a Output 2 Solid state Relay SD L K e 0 5 A maximum Form A 24 to 240V ac See Quencharc note Minimum load current 10mA e Maximum leakage current 100uA Not for use with direct current dc Output does not supply power S ime Solid state Switch nG a Internal Circuitry ine LS common 3 ds normally open 41 me ES Figure 14b Output 2 Switched DC SD L C Maximum supply current 30 mA dc e Supply voltage 6 to 12
90. voltage output value appears in the upper display Press the Up O 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 4 At Output 3 Calibrate 9V 03 9 u select and press the Advance Key The voltage output value appears in the upper display Press the Up O 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 5 Rewire for operation and verify calibration Milliamperes 6 9 Connect the volt ammeter to terminals 12 and 14 At Output 3 Calibrate 4 mA 0 3 4 A select and press the Advance Key The current output value appears in the upper display Press the Up O or Down Key O to adjust the upper dis play value to match the value from the volt amme ter The unit should stabilize within one second Repeat until the volt ammeter reads 4 00 mA 0 1mA Press the Advance Key to store the val ue and move to the next prompt At Output 3 Calibrate 16 mA f J 6 select and press the Advance Key The current output value appears in the upper display Press the Up O or Down Key O to adjust the
91. wrong sensor or the controller may not be calibrated Calibration may have been corrupted Ambient temperature may be too hot or too cold Calibration may be corrupted Settings may have changed unexpectedly 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 Watlow Series SD Limit 46 Chapter 8 Features A Appendix Specifications 2303 Controller e Microprocessor based user programmable 1 niversal input 3 outputs 2 outputs on 1 32 DIN e 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 e Advance Up Arrow Down Arrow RESET Home tactile keys Standard Conditions For Specifications e Ambient temperature 25 C 77 F 3 C rated line voltage 50 to 60Hz O to 9096 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
92. y and the proper response to a limit message Determine 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 45 Chapter 8 Features Indication Er In Input error E r A b Ambient temperature error Er C 5 Checksum error 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

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