Watlow Series 94 Control User Manual - Watlow
Contents
1. Parameter Value Range Factory Default Appears If CLOC 0 3 0 fa JI HILL EI all 5 CJ DIP switch selectable b rtd rtd CEF C Co E CLOC is settoL 0 rL con rh Input dependent LOC is set to 0 ch chjto cl Input dependent EL 0 lis set to g COE N L HILL L LLH U 1006 C HSL 1 9999 0 1 999 9 F 3 0 3 F ELE is set to 0 1 to 5555 0 1 to 555 5 C 2 0 2 C 062 A Process Alarm no EL is set to 0 Process with no alarm message no None C HSA 1 9999 0 1 999 9 F 3 0 3 F Gt Pis set to 1 5555 0 1 555 5 C 2 0 2 C ELE is set to 0 LURE L L tlorl nl A 1 GE O lissettol Prjor A and ELE is set to g 50 On or _ OFF FF Ot is setto Pr Aland LOC is set to g rEd din din Injis set to _e E d or _r t d and ELE is set to g UP no no display shown EPcol LOT is set to 0 Pr o Process LL of Low limit set point H uL High limit set point E L of Alarm low set point Alarm high set point bot nol no display shown IT L CSsetiol 0 Pro Process LL of Low limit set point 1 High limit set point Operation Menu Operation Factory Parameters Value Range Default Appears If 1410 eljto tH forL LH2. General Description Chapter 2 Install and Wire the Series 94 Panel GUtout erer e Dimensions 2 Installation Procedure Wiring the Series 94 Sensor Installation Guid EE INPUT Wiring eelere ee ee ee Output 1 Wiring Output 2 Wiring System Wiring Example Chapter 3 How to Use the Keys and Displays Keys Displays amp Indicator Lights Chapter 4 How to Set Up the Series 94 Setting the Input Type DIP Switch Entering Setup Menu Setup Parameters Setup Menu Table Operation Parameters Operation Menu Table Chapter 5 Alarms and Errors Using Alarms Error Code Messages Error Code Actions TI SE Decreasing Noise Sensitivity Eliminating Noise Calibration Restoring Factory Calibration Calibration Menu Calibration Procedures Glossary Specifications snena ania Model Number Informatio
3. 6 DIN a mite 5 10 24 0 0000 Rear View DI DI NOTE 3 m 1 Output is in open state in Gelee x E Alarm Condition Limit Controller n NOTE 1 Switching inductive loads 120 ac relay coils solenoids L1 L2 etc with the mechanical relay solid state relay 94AA 1DA0 00RR f Ik 11 12 5 output options requires use of an R C suppres 1 Not used o t tee sor S 5 015 Temperature Controller Watlow carries the R C EEN 9 10 suppressor 6 not used o 6 7 brand name which is a 7 not used O5 trademark of ITW Paktron ak DA10 24C0 0000 Watlow Part No 0804 04 61 1L Ih 20 21 0147 0000 1111 1212 10 gelen L Ihz 1 12 21 Series 94 94BB 1DA0 00RR AN qal 3 Limit Controller WARNING To avoid dam uls 7 age to properiy and equip T 5 57097 elt t 2 ment and or injury or m 1055 of life use National Electric Code NEC stan dard wiring practices to install and operate the Series 94 Failure to do so could result in such damage and or injury or death Figure 2 7 System wiring example Watlow Series 94 Install and Wire 2 7 g EN 3 a Wiring Notes Sketch in your application on this page or a copy of it See the wiring example in this chapter ral 00 D CD Figure 2 8 Wiring note
4. clear a latched OBS OAV and corrected alarm Alarm Silencing is available with the process alarm and has two uses When is selected as on the controller automatically disables the alarm output on initial power up in either the latching or non latching mode Alarm silencing disables the alarm output relay and the Output 2 indicator light Once the process value crosses into the safe region both a latching or a non latching alarm is ready Any future excursion outside of these alarm set points triggers an alarm When is selected as on pressing the Reset Key will disable the alarm output relay and the Output 2 indicator light once an alarm has occurred but will not eliminate the alarm message if enabled If is set tot Pr A This silences the alarm until the process returns to the safe region Once with in this region the alarm is ready again Any future excursion outside of the alarm set points triggers an alarm O tome LLJ lt Watlow Series 94 Alarms and Errors 5 1 gt m m c Figure 5 2 Error Code Message A CAUTION Electrical noise or a noise event vibration or excess environ mental moisture or temperature may cause Series 94 errors to occur If the cause of an error is not otherwise appar ent check for these Error Code Messages Three dashes l in th
5. Selects alarm silencing inhibit for the alarm Appears only when is set tol Bel For more information see Chapter 5 Range Qnjor _ OFF Default RTD Selects the RTD calibration curve for RTD inputs Will not appear unless is set tol rt djor rtd J 15 is 0 0039160 02 is 0 0038500 02 Range d J 15 Default Upper Display Selects what parameter appears on the upper display Range No display Process temperature Lot Low limit set point High limit set point Low alarm set point H B High alarm set point Default 1 P 5 Bottom Display Lower Selects what parameter appears on the lower display Range No display Process temperature Lot Low limit set point High limit set point Low alarm set point High alarm set point Default 4 4 Setup Watlow Series 94 Table 4 5a Input Ranges Table 4 5h Setup Menu Prompts and Descriptions Input Type Sensor Range Low Sensor Range High J 32 F 0 C 1382 F 750 C E H 328 F 200 C 2282 F 1250 C E 328 F 200 C 662 F 350 C o 32 F 0 C 2282 F 1250 C CS 32 F 0 C 2642 F 1450 C C 32 F 0 C 3308 F 1820 C ctd 1 328 F 200 C 1292 F 700 C 24 0 1 199 9 F 199 9 C 999 9 F 700 0 C Setup Menu NOTE Document your setup menu parameters Do not enter any values here make photocopi
6. b zi 119mm Lo 4 1 104mm 0 40 j 10mm 1 21 31mm Installation Procedure Bold print denotes requirement for NEMA 4X seal Follow this proce dure to mount the Watlow Series 94 temperature control 1 2 Make a panel cutout using the dimensions in Figure la If your controller model number begins with 94B make sure the rounded side of the external case gasket is facing the panel sur face Check to see that the gasket is not twisted and is seated within the case bezel flush with the panel Place the case in the cutout Make sure the gasket is between the panel cutout and the case bezel Watlow Series 94 Install and Wire 2 1 Lea m gt CD Figure 2 2a Mounting Case Side View Figure 2 2b Mounting Collar Cross Section with offset teeth A CAUTION Follow the installation procedure exactly to guarantee a proper NEMA 4X seal Make sure the gasket between the panel and the rim of the case is not twisted and is seated proper ly Failure to do so could result in dam age to equipment 0 to 0 019 space p Panel 0 to 0 483 mm Ridges Tabs Teeth 3 While pressing the front of the case firmly against the panel slide the mounting collar over the back of the control The tabs on the collar must line up with the mounting ridges on the case for secure installation See Figure 2 a Slide the collar firmly against the b
7. Indicator Light Lit when alarm output is tripped RESET Key e Press once to clear any limits and latched alarms e Press once to silence alarm output if silence is enabled e Automatic reset on power loss Watlow Series 94 Keys and Displays 3 1 N GP Les E N O3 lt Notes AN CH c o 3 DO c 3 2 Keys and Displays Watlow Series 94 4 How to Set Up the Series 94 A WARNING Remove power from the controller before remov ing the chassis from the case or changing the DIP switches Removing the controller from the chas sis is not a normal oper ating condition and should only be done by a qualified technician Figure 4 1a DIP Switch Location and Orientation Figure 4 1b Input DIP Switches Setting up the Series 94 is a simple process First set the DIP switches to match your input type Refer to the orientation below for the Input parameter Next configure the 94 s features to your application in the Setup Menu then enter values in the Operation Menu Both tasks use the Advance key to move through the menus and the Up arrow Down arrow keys to select data Setting the Input Type DIP Switch The Series 94 input type can be user selectable at any time via a Dual In line Package DIP switch inside the control located on the left viewed from the bot tom To set the DIP switch remove the control chassis from the
8. LOC Lock parameter and the upper display shows its current level All keys are inactive until you release both keys You can reach the L OC Lock parameter from anywhere Use the key to move through the menus and the OUp arrow and Down arrow keys to select data You will not see all parameters in this menu depending on the controller s configuration and model number Setup Menu Press and for 3 seconds Lock nput Celsius Fahrenheit Range Lovv Range High Output 1 Limit Hysteresis Output 2 Hysteresis Alarm Latching Silencing RTD Upper Display bot Bottom Display s m r 5 5 m m er rr Q These parameters may be masked or hidden depending on the settings of your controller For an explanation of when the parameters will appear refer to Setup Menu table to the right Note Do not enter any values here make photocopies instead Operation Menu Low Limit Set Point Ki High Limit Set Point Alarm Low CAH 1 Alarm High Calibration Offset These parameters may be masked or hidden depending on the settings of your controller For an explanation of when the parameters will appear refer to the Operation Menu table to the right Setup Menu
9. NOTE couple itself to limit errors When an external device with a non isolated circuit UI UI common is connected to the dc output you must use an isolated or un 3 ry grounded thermocouple H DIP Switch orientation Figure 2 4b RTD 2 or 3 Wire 1000 Platinum There could be a 2 F input error for every 10 of lead length resistance when using a 2 wire RTD That resistance when added to the RTD element resistance will result in erroneous input to the instrument To overcome this problem use a 3 wire RTD sensor which compensates for lead length resistance When extension wire is used for a 3 wire RTD all wires must have the same electrical resistance i e same gauge same length multi stranded or solid same metal d i g 3 wire RTD ewe RTD Jumper Terminals 3and5 3 _5 DIP Switch orientation 2 4 Install and Wire Watlow Series 94 NOTE Successful installa tion requires four steps e Choose the con troller s hardware configuration and model number Appendix e Choose a sensor Chapter Two and Appendix e Install and wire the controller Chapter Two e Configure the con troller Chapters Three Four and Five NOTE 1 Switching inductive loads relay coils solenoids etc with the mechanical relay switched de or solid state relay output options requires use of an R C suppressor Watlow carries the R C suppresso
10. Press the Reset Key twice to turn on Output 2 indicator light The unit is calibrating when Output 2 indicator light is on Make sure you are in the correct parameters when Output 2 indicator light is on Press the Advance key once to get to thel 6 00 prompt At the 0 00 prompt enter 0 00mV from the millivolt source to the Series 94 Allow at least 10 seconds to stabilize Press the GAdvance key At the 50 0 prompt enter 50 00mV from the millivolt source to the Series 94 Allow at least 10 seconds to stabilize Press the Advance key Atthel KE prompt disconnect the millivolt source and connect the reference com pensator or thermocouple calibrator to Terminal 5 Negative and Terminal 3 Positive on the Series 94 terminal strip If using a compensator turn on and short the input wires If using J calibrator set to simulate 32 F 0 C Allow 10 seconds for the control to sta bilize then press the Reset Key twice to turn off Output 2 indicator light The unit will leave the calibration mode if one minute passes between key activations To conclude the thermocouple calibration press the key to the next prompt or exit the Calibration Menu RTD Field Calibration Procedure Equipment Required 1KQ precision decade resistance box with 0 01Q resolution Setup And Calibration 1 2 Connect the ac line voltage L1 and L2 to the proper terminals Connect the decade resistance box to Terminal 2 3 an
11. con troller outputs are disabled Before attempting to calibrate make sure you read through the procedures carefully and have the proper equipment called for in each procedure Make sure the DIP switches are in the proper position for the input type See Chapter 4 Entering the Calibration Menu In the Calibration Menu various input signals must be supplied for the con troller to go through its auto calibration The Calibration Menu can only be entered from the Lock parameter in the Setup Menu Press the QUp arrow Down arrow keys simultaneously for 3 seconds 1 second The Calibration Offset parameter appears in the lower display with no in the upper display LIMIT 94 LIMIT 94 Any inadvertent change in the displayed data when pressing the QUp arrow QDown arrow keys is ignored Calibration values won t be retained unless Output 2 indicator light is on To turn Output 2 indicator light on press the RESET key two times within three seconds Press the QUp arrow or Down arrow key to change the upper display to _ 5 Press Advance to enter the calibration sequence Upon entering the calibration menu the upper display window indicates CAL It continues to indicate while the operator walks through the entire cali bration parameter list The controller uses the lower display to prompt the user as to what the input should be Once the information has been properly established and maintained for at least 5 to 10
12. grado de contami naci n ambiental 2 Tensi n nominal 100 a 240V 0 12a 24 V Frecuencia nominal 50 60 Hz Consumo nominal de energ a 7 VA m ximo 12 a 24 V o 12 VA maximo 100 a 240 V Cumple con los requisitos esenciales de las siguientes Directrices de la Union Europea mediante el uso de las normas aplicables que se muestran a continuaci n para indicar su conformidad 89 336 EEC Directriz de compatibilidad electromagn tica EN 61326 1997 CON A1 1998 Equipo electrico para medici n control y uso en laboratorio Requisitos EMC Inmunidad industrial Emisiones Clase A EN 61000 4 2 1996 con A1 1988 Inmunidad a descarga electrostatica EN 61000 4 3 1997 Inmunidad a campo radiado EN 61000 4 4 1995 Inmunidad a incremento repentino rapidas fluctuaciones electricas transitorias EN 61000 4 5 1995 con A1 1996 Inmunidad a picos de voltaje o corriente EN 61000 4 6 1996 Inmunidad por conducci n EN 61000 4 11 1994 Inmunidad a caidas de voltaje variaciones y peque as interrupciones de voltaje EN 61000 3 2 1995 con A1 3 1999 Emisiones de corriente arm nica EN 61000 3 3 1995 con A1 1998 Fluctuaciones de voltaje y centelleo 73 23 EEC Directriz de bajo voltaje EN 61010 1 1993 con A1 1995 Requisitos de seguridad de equipo el ctric para medici n control y uso en laboratorio Parte 1 Requisitos generales Winona Minnesota USA Place of Issue Jim Boigenzahn Name of Authorized Representative August
13. measured Typical examples are temperature relative humidity pressure flow fluid level events etc The high process variable is the highest value of the process range expressed in engineering units The low process variable is the lowest value of the process range programmed display data Displayed information that gives the operator the intended process information such as intended set point intended alarm limit etc corresponding to temperature prompt A symbol or message displayed by the con troller that requests input from the user R reference junction See junction resistance temperature detector RTD A sensor that uses the resistance temperature characteristic to mea sure temperature There are two basic types of RTDs the wire RTD which is usually made of platinum and the thermistor which is made of a semiconductor materi al The wire RTD is a positive temperature coefficient sensor only while the thermistor can have either a nega tive or positive temperature coefficient reverse action An output control action in which an increase in the process variable causes a decrease in the output Heating applications usually use reverse action RTD See resistance temperature detector S set point The desired value programmed into a con troller For example the temperature at which a system is to be maintained switching sensitivity In on off control the temperature change necessary to change the output fr
14. parameter is present if is set to or Peciand L is set to or i Range AL Uiioi el 5 not active Default Calibration Offset Adds or subtracts degrees from the input signal Range 180 F to 180 F 100 C to 100 C or 18 0 F to 18 0 F 10 0 C to 10 0 C Default 0 Operation Menu Document your Series 94 Operation Parameters Do not enter any values here make photocopies instead Operation Factory Parameters Value Range Default Appears If LLO eLltol LH Hor eH lifi LH Iis not active cl Gt flissettol H_Ljor CR and LU js not set 2 LHI LL lto H or cl HI L is not active cH GE 1 issettol H H nan LLL lis not set 2 ALO eLltol AH Hor eHlifl AH fis not active rL Otis setto Pr A or Pr jand LE lis set to Do 1 AH RL lto H lor cl RL is not active cH GE Celis settol P A or P and LE lis set to D CRU 180 F to 180 F 100 C to 100 C 0 LE issettol OI or or 18 0 F to 18 0 F 10 0 C to 10 0 C il 4 6 E Setup Watlow Series 94 5 Alarms and Errors NOTE When the alarm out put is de energized the N 0 contact is open in the alarm condition Figure 5 1 Clearing a latching alarm
15. seconds the Advance key may then be used to display the next prompt After the final input is established press the Advance key twice to return the controller to the configuration menu at the top of the parameter list Appendix Watlow Series 94 Appendix A 3 xipuaddy Figure A 4 Calibration Parameters Restoring Factory Calibration The Restore Factory Calibration parameter restores the factory calibra tion values to the Series 94 If you calibrate your control incorrectly you have the option to default to the original values Once you leave the menu the val ues are entered 1 Press the QUp arrow Down arrow keys simultaneously for three seconds The LOC parameter appears in the lower display Continue holding the OQUp arrow QDown arrow keys simultaneously for three seconds until the lower display readsl CAL 2 Press the QUp arrow key until appears in the upper display 3 GAdvance through the calibration menu until appears in the lower display 4 Press the QUp arrow key until appears in the upper display 5 Press the Advance key and the Series 94 advances to test the displays This procedure is used only to restore calibration it does not affect Setup or Operation parameters or values Calibration Menu Calibration Menu CAL CAL LEL Connect a Type J ambient compensator with inputs shorted C 4490 Set the low resistance to 44 010 255 Set the high resistance to 255 420 e 5E Res
16. wire platinum 1000 0 C calibration to 0 003850 curve or 0 003916 curve user selectable Sensor break protection de energizes control output to protect system e F or C user selectable Input Range Specified temperature ranges represent the controller s operation al span Thermocouple Type J 32 to 1382 F 0 to 750 C Type K 328 to 2282 F 200 to 1250 C Type T 328 to 662 F 200 to 350 C Type N 32 to 2282 F 0 to 1250 C Type S 32 to 2642 F 0 to 1450 C Type B 32 to 3308 F 0 to 1820 C RTD Resolution 1 328 to 1292 F 200 to 700 C 0 1 199 9 to 999 9 F 199 9 to 700 0 C Output 1 Limit e Electromechanical relay Form C 5A 120 240V maximum without contact suppression rated resistive load 5A 30V dc 2 Minimum contact current 100mA 5V dc Output 2 Alarm e Electromechanical relay Form C 5A 120 240V maximum without contact suppression rated resistive load 5A 30V 2 Minimum contact current 100mA 5V dc Switched dc signal provides a non isolated minimum turn on volt age of 3V dc into a minimum 5000 load maximum on voltage not greater than 12V dc into an infinite load Solid state relay2 Form A 0 5A 24V min 264V max opto isolated burst fire switched without contact suppression Off state output impedance is 31MQ e Alarm output can be latching or non latching with separate high and low values Alarm sile
17. 2001 Date of Issue General Manager Title of Authorized Representative Le EFP i Ha a Signature of Authorized Representative A 12 Appendix Watlow Series 94 Series 94 Quick Reference Keys and Displays Upper Display Can indicate actual temperature alarm low alarm high limit low Output 1 Indicator Light Lit set point value limit high set point value operating parameter values or an open VVATLOVV LIMIT 94 when limit output is tripped sensor When powering up the upper display will be blank for five seconds ii To set to blank set UP to C no lin the Setup Menu mr Output 2 Indicator Light Lit 9 YO 1 when alarm output is tripped Lower Display Can indicate actual temperature alarm low alarm high limit low set point value limit high set point 2 value operating parameter values or an open sensor When powering up the lower display will be blank for five seconds RESET Key To set to blank set bot to no Jin the Setup Menu 9 HI Press once to clear any limits or latched alarms Press once to silence alarm output if silencing is Advance Key Press to step through 6 enabled Operation Setup and Calibration Menus Automatic reset on power loss Up arrow and Down arrow Keys Increases or decreases the value of the displayed parameter Press lightly to increase or decrease the value by one Press and hold down to increase or decrease the displayed value at a rapid rate New
18. 3 1 DIP Switch Location amp Orientation 4 1a Input DIP Switches 4 1b Entering the Setup Menu 4 2a The Setup Menu 422b The Operation Menu 22222222222 4 6 Clearing an Alarm sls l s 5 1 Error Code Message 5 2 Entering the Calibration Menu Calibration Menu 2 2 2 2 AA Tables E SEENEN AC Page Input Ranges l ses ss ii isisi l 4 5a Setup Menu Prompts Description 4 5b Operation Menu Prompts Description 4 6 Quick Reference Sheet A 13 A 14 Watlow Series 94 Table of Contents Notes Watlow Series 94 1 Overview of the Series 94 Figure 1 1 Series 94 Input and Output Overview Single Input Type J K T 5 Thermocouple or 1 or 0 1 RTD Output 1 High Low Limit Output 2 High Low Alarm or None General Description Welcome to the Watlow Series 94 a 1 16 DIN microprocessor based limit con troller The 94 has a single input that accepts a type B J K T N or S ther mocouple or RTD input The Series 94 controller limits over temperature conditions in thermal appli cations The limit controller protects against high temperature runa
19. Series 94 User s Manual WATLOW LIMIT 84 L L 1 16 DIN Limit Controller d FM TOTAL CUSTOMER SATISFACTION 3 YearWarranty ISO 9001 LET bo da sur x TUU 1 az Registered Company VVinona Minnesota USA 1241 Bundy Blvd P O Box 5580 Winona Minnesota USA 55987 5580 Phone 507 454 5300 Fax 507 452 4507 http vvvvvv vvatlovv com 0600 0024 0000 Rev C dune 2002 Supersedes 0600 0024 0000 Rev B Made in the U S A 10 00 NOTE Details of a Note appear here in the narrovv margin on the outside of each page A CAUTION Details of a Caution appear here in the narrow margin on the out side of each page N warnine Details of a VVarning appear here in the narrovv margin on the left side of each page Safety nformation We use note caution and warning symbols throughout this book to draw your attention to important operational and safety information A bold text NOTE marks a short message in the margin to alert you to an important detail A bold text CAUTION safety alert appears with information that is impor tant for protecting your equipment and performance Be especially careful to read and follow all cautions that apply to your application A bold text WARNING safety alert appears with information that is impor tant for protecting you others and equipment from damage Pay very close attention to all w
20. The programmed instructions that are permanently stored in the microprocessor software direct action An output control action in which an increase in the process variable causes an increase in the output Cooling applications usually use direct action display capability In an instrument with digital display the entire possible span of a particular parameter or value F G Form A A single pole single throw relay that uses only the normally open NO and common contacts These contacts close when the relay coil is energized They open when power is removed from the coil Form C A single pole double throw relay that uses the normally open NO normally closed NC and common contacts H hysteresis A change in the process variable required to re energize the control or alarm output Sometimes called switching differential isolation Electrical separation of sensor from high volt age circuitry Allows use of grounded or ungrounded sensing element J K junction The point where two dissimilar metal conduc tors join to form a thermocouple junction cold Connection point between thermocouple metals and the electronic instrument See reference junction junction reference The junction in a thermocouple cir cuit held at a stable known temperature cold junction Standard reference temperature is 32 F 0 C L limit or limit control A highly reliable discrete safety device redundant to the primary controller
21. Using Alarms The Series 94 has a process alarm feature When the actual temperature exceeds that absolute temperature limit an alarm occurs The process alarm set points may be independently set high and low Under the Setup Menu select the type of alarm output with the Output 2 Parameter sets a Process Alarm with alarm message displayed sets a Process alarm with no alarm message displayed Latching Process alarms can be latching or non latching When the alarm con dition is removed a non latching alarm automatically clears the alarm out put You must manually clear a latching alarm before it will disappear by pressing the RESET key 4 jor ___H lin the lower display indicates an alarm when is set tol P A The lower display alternately shows information from the cur rent parameter and thel LO 1alarm message at one second inter vals The alarm output is de energized and the Output 2 indicator light is lit To clear an alarm First correct the alarm condition then e If the alarm is latching Clear it manually press the Reset key once as soon as the process tempera ture is inside the alarm limits and satisfies the alarm hysteresis HSR e If the alarm is non latching The alarm clears itself automatically as soon as the process temperature is inside the alarm limits and satisfies the alarm hysteresis HSA WATLOW LIMIT 94 WATLOW LIMIT 94 S64 554 Press once to 5 L d 5 q
22. ack of the panel getting it as tight as possible To ensure a tight seal use your thumb to lock the tabs into place while press ing the case from side to side Don t be afraid to apply enough pressure to install the control The tabs on each side of the collar have teeth which latch into the ridges See Figure 2b Each tooth is staggered at a different height so only one of the tabs on each side are ever locked into the ridges at any time As depicted in Figure 2 2c confirm that the tabs on one side of the collar cor respond with those on the opposite side Make sure the two corresponding tabs are the only ones locked in the ridges at the same time If the corresponding tabs are not supporting the case at the same time and the space between the panel and the case bezel is greater than 019 you will will not have a NEMA 4X seal This applies to units with models designated 94B However all units should be mounted in this fashion to guarantee integrity of the mounting system Figure 2 2c Case Rear View and NEMA AN Seal Example Make sure that the two corresponding tabs NEMA 4X Seal Example are locked in the ridges at the same time 4 Insert the control chassis into its case and press the bezel to seat it Make sure the inside gasket is also seated properly and not twisted The hardware installation is complete Proceed to the wiring section from here Removing the Series 94 Controller When removing the mounting collar w
23. arnings that apply to your application The safety alert symbol A an exclamation point in a triangle precedes a general CAUTTON or VVARNING 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 controller review all of your configuration information for each step of the setup to verify that your selections are consistent with your applications If the problem persists after checking all the steps you can get technical assistance by calling Watlow Controls at 1 507 494 5656 between 7 a m and 5 p m CST and asking for an applications engineer When you call have the following information on hand the controller s model num ber the 12 digit number is printed on the top of the stickers on each side of the controller s case and on the right hand or top circuit board your users manual and all configuration information Your Feedback Your comments or suggestions on this manual are welcome please send them to Technical Writer Watlow Winona 1241 Bundy Boulevard P O Box 5580 Winona MN 55987 5580 Phone 1 507 454 5300 Fax 1 507 452 4507 The Series 94 User s Manual is copyrighted by Watlow Winona Inc June 2002 with all rights reserved 2290 How to Use This Manual Watlow Series 94 TC Table of Contents Chapter 1 Overview
24. arranty Quality and Mission Statement Watlow Winona will be the world s best supplier of industrial temperature control products services and systems by exceeding our customers employees and shareholders expectations Contact Your Authorized Watlow Distributor is e or Phone 507 454 5300 e Fax 507 452 4507 e For technical support ask for an Applications Engineer e To place an order ask for Customer Service To discuss a custom option ask for a Series 93 Product Manager Warranty The Watlow Series 94 is warranted to be free of defects in material and work manship for 36 months after delivery to the first purchaser for use providing that the units have not been misapplied Since Watlow has no control over their use and sometimes misuse we cannot guarantee against failure Watlow s obligations hereunder at Watlow s option are limited to replacement repair or refund of purchase price and parts which upon examination prove to be defec tive within the warranty period specified This warranty does not apply to dam age resulting from transportation alteration misuse or abuse Returns e Call or fax Customer Service for a Return Material Authorization RMA number before returning a controller e Put the RMA number on the shipping label and also on a description of the problem 20 of net price restocking charge applies to all standard units returned to stock Wa
25. ay after 30 seconds on power up This error indicates an open sensor or A D error All wiring and fusing must conform to the National Electric Code and to any locally applicable codes as well g EN 3 a Power Wiring High Voltage 100 to 240 ac nominal 85 to 264 actual 94 1 0 00 Low Voltage 12 24 ac dc 94__ 1__1 00_ Figure 2 3 Power wiring NOTE Optional protective rear terminal cover 0822 0426 P001 is available Contact Watlow customer service or your local Watlow sales representative Watlow Series 94 Install and Wire 2 3 AN Sensor installation Guidelines WARNING To avoid elec tric shock and damage to property and equipment use National Electric Code NEC safety prac tices when wiring and See Chapter 4 for more information on DIP switch location and orientation connecting this unit to a power source and to elec trical sensors or peripher al devices Failure to do Input Wiring We suggest you mount the sensor at a location in your process or system where it reads an average temperature Put the sensor as near as possible to the mate rial or space you want to protect Air flow past this sensor should be moderate The sensor should be thermally insulated from the sensor mounting E 22 so could result in injury or 5 death D Figure 2 4a Thermocouple Extension wire for thermocouples must be of the same alloy as the thermo
26. calibration A 4 returns back cover RTD 4 4 RTD Calibration A 5 RTD Sensor Wiring 2 4 S safety information inside front cover sensor installation 2 4 setting up the Series 94 4 1 Setup Menu 4 2 4 5 Setup Parameters 4 3 4 5 Silencing 4 4 Specifications A 9 T terminals A 9 technical assistance inside front cover thermocouple calibration A 5 thermocouple sensor wiring 2 4 torque A 9 U Z OUp arrow key 3 1 Upper Display 3 1 4 4 warranty back cover wiring 2 3 wiring example 2 7 Appendix Watlow Series 94 Appendix A 11 KZ KZ gt lt Declaration of Conformity Series 94 WATLOW Winona Inc 1241 Bundy Boulevard Winona Minnesota 55987 USA e Declares that the follovving product Designation Series 94 Model Number s 9 4 A or B B 1 D A C D or K 0 or 1 Any four letters or numbers Safety Component Temperature Limit Controller Installation Category II Pollution Degree 2 Rated Voltage 100 to 240V or 12 to 24 Rated Frequency 50 60 Hz Rated Power Consumption 7VA maximum 12 to 24V or 12VA maximum English Classification Meets the essential requirements of the following European Union Directives by using the relevant standards show below to indicate compliance 89 336 EEC Electromagnetic Compatibility Directive EN 61326 1997 With A1 1998 Electrical equipment for measurement control and laboratory use EMC requirements Industrial Immuni
27. case Holding each side of the bezel press in firmly on the side grips until the tabs release You may need to rock the bezel back and forth several times to release the chassis The locations of the board and switches appear in Figures la and 4 1b Refer to the input types below for DIP switch orientation DIP switch selection must match the sensor selected under the Input parameter in the Setup Menu Set the software selection for the input type to match Controller Chassis Bottom View Thermocouple RTD Input Types Watlow Series 94 Setup 4 1 Entering the Setup Menu Figure 4 2a Entering the Setup Menu NOTE While in the Setup Menu all outputs are off Figure 4 2b The Setup Menu The Operation Menu will appear as the default menu of the Series 94 The Setup Menu displays the parameters that configure the Series 94 s features to your application Enter the Setup Menu by pressing the QUp arrow and Down arrow keys simultaneously for 3 seconds The lower display shows the Lock parameter and the upper display shows its current level All keys are inac tive until you release both keys You can reach the Lock parameter from anywhere Use the Advance key to move through the menus and the QUp arrow and ODown arrow keys to select data You will not see all parameters in this menu depending on the controller s configuration and model number If no keys are pressed for approximately 60 seconds t
28. d 5 on the terminal strip Use regular 20 24 gauge wire of the same length and type Make sure the DIP switch is set for RTD input see Chapter 4 Apply power to the unit and allow it to warm up for 15 minutes After warm up put the controller in the Calibration Menu Select Y amp S Press the Advance key until the prompt is displayed Press the Reset Key twice to turn on Output 2 indicator light The controller is calibrat ing when Output 2 indicator light is on Make sure you are in the correct parameters when Output 2 indicator light is on At the prompt set the decade resistance box to 44 01 Allow at least 10 seconds to stabilize Press the Advance key At thel 255 prompt set the decade resistance box to 255 42 Allow at least 10 sec onds to stabilize Press the Reset Key twice to turn off Output 2 indicator light The unit will leave the calibration mode if one minute passes between key activations To conclude the RTD calibration press the Advance key to the next prompt or exit the Calibration Menu Watlow Series 94 Appendix A 5 Appendix Notes xipuaddy Watlow Series 94 A 6 Appendix Glossary A B alarm A signal that indicates that the process has exceeded or fallen below the alarm set point For exam ple an alarm may indicate that a process is too hot or too cold alarm hysteresis A change in the process variable required to re energize the alarm output alarm si
29. d has two uses VVhen is selected as on the controller automatically disables the alarm output on initial power up in either the latching or non latching mode Alarm silencing disables the alarm output relay and the Output 2 indicator light Once the process value crosses into the safe region both a latching or a non latching alarm is ready Any future excursion outside of these alarm set points triggers an alarm When is selected as on pressing the Reset Key will disable the alarm output relay and the indicator light once an alarm has occurred but will not eliminate the alarm message if enabled If is set tol Pr This silences the alarm until the process returns to the safe region Once within this region the alarm is ready again Any future excursion outside of the alarm set points trig gers an alarm Errors Three dashes lin the upper display indicate a Series 94 error The error code is visible in the lower display Sensor underrange error applies only to RTD units The sensor input generated a value lower than the allowable signal range or the A D circuitry malfunctioned Enter a valid input Make sure the Input parameter Setup Menu and the DIP switch settings both match your sensor Refer to the table below for the appropriate input type and range E r 7 Configuration error The controller s microprocessor is faulty call the factory oases Non volatile checksum error The nonvolatile mem
30. data will self enter in five seconds or can be entered by pressing the Advance Key Press both simultaneously for three seconds to enter the Setup Menu The 1 OC parameter appears Continue pressing both keys for three seconds to enter the Calibration Menu Alarms The process alarm sets an absolute temperature When the actual temperature exceeds that absolute temperature an alarm occurs The process alarm set points may be independently set high and low Under the Setup Menu select the type of alarm output with the Output 2 parameter sets a Process Alarm with alarm message displayed sets a Process alarm with no alarm message displayed Latching Alarms can be latching or non latching When the alarm condition is removed a non latching alarm automatically clears the alarm output You must manually clear a latching alarm before it will disappear by pressing the Reset key To clear an alarm First correct the alarm condition then If the alarm is latching Clear it manually by pressing the Reset key once as soon as the process temperature is inside the alarm limits and satisfies the alarm hysteresis HSR e If the alarm is non latching The alarm clears itself automatically as soon as the process temperature is inside the alarm limits and satisfies the alarm hysteresis HSA WATLOW LIMIT 94 Press once to og clear a 6 amp 4 latched and corrected o 0 alarm Alarm Silencing is available with the process alarm an
31. e suggest using a thin tool such as a putty knife or screwdriver to pry gently under each of the six tabs to disen gage the teeth Then rock the collar back and forth until it can be easily pulled off the case 2 2 Install and Wire Watlow Series 94 A WARNING To avoid electric shock use National Electric Code NEC safety practices when wiring and connect ing this unit to a power source and to electrical sensors or peripheral devices Failure to do so could result in injury or death NOTE Taking the unit out of the case is not a nor mal operating condi tion and should only be done by a quali fied maintenance installation techni cian Power to the case should be dis connected before removing or installing the con troller into its case A WARNING The case terminals may still carry live voltage when the unit is removed A WARNING Irreversible damage will occur if high voltage is applied to the low voltage unit Wiring the Series 94 The Series 94 wiring is illustrated by model number option Check the unit sticker on the controller and compare your model number to those shown here and also the model number breakdown in the Appendix of this manual All outputs are referenced to a de energized state The final wiring figure is a typical system example When you apply power without sensor inputs on the terminal strip the Series 94 displays in the upper display and in the lower displ
32. e upper display indicate a Series 94 error The error code is visible in the lower display LIMIT 94 Er Sensor underrange error applies only to RTD units The sensor input generated a value lower than the allowable signal range or the A D circuitry malfunctioned Enter a valid input Make sure the Input parameter Setup Menu and the DIP switch settings both match your sensor Refer to Table 4 5b on page 4 5 for the appropriate input type and range Configuration error The controller s microprocessor is faulty call the factory Non volatile checksum error The nonvolatile memory checksum discovered a checksum error Unless a momentary power interruption occurred while the controller was storing data the nonvolatile memory is bad Call the factory A D underflow error The A D circuit is underrange An open or reversed polarity sensor is the most likely cause Check the sensor if the connection is good and functions properly call the factory The A D underrange voltage is too low to convert an A D signal Make sure nj Input parameter matches your sensor and DIP switches are set accordingly A D overflow error The A D circuit is overrange An open or reversed polarity sensor is the most likely cause Check the sensor if the connection is good and the sensor func tions properly call the factory The A D overrange voltage is too high to con vert an A D signal Make sure the Input parameter S
33. ectromagn tique Partie 2 Environnement industriel EN 61000 4 2 1995 D charge lectrostatique EN 61000 4 4 1995 Courants lectriques transitoires rapides EN 61000 4 3 1994 Insensibilit a nergie rayonn e EN 61000 4 6 1994 Insensibilit a nergie par conduction ENV 50204 1995 Telephone cellulaire EN 50081 2 1994 Norme g n rique sur les emissions electromagnetiques Partie 2 Environnement industriel EN 55011 1991 Limites et methodes de mesure des caracteristiques d inter ferences du mat riel radiofrequence industriel scientifique et medi cal Groupe 1 Classe A EN 61000 3 2 1995 Limites d missions d harmoniques EN 61000 3 3 1995 Limites de fluctuations et de vacillement du courant 73 23 EEC Directive li e aux basses tensions 1993 Exigences de s curit pour le mat riel lectrique de mesure de commande et de laboratoire Partie 1 Exigences g n rales EN 61010 1 2293 Erklart daB das folgende Produkt Beschreibung Modellnummer n Deutsch Serie 94 9 4 A oder B B 1 D A C D oder K 0 oder 1 4 beliebige Buchstaben oder Ziffern Klassifikation Sicherheitskomponente Temperaturregelsystem Installationskategorie II Emissionsgrad 2 Nennspannung 100 bis 240 V oder 12 bis 24 V Nennfrequenz 50 60 Hz Nominaler Stromverbrauch Max 7 VA 12 bis 24 V oder max 12 VA 100 bis 240 V Erfullt die wichtigsten Normen der folgenden Anweisung en der Europ ischen Union u
34. elovv Range 0 3 Default 0 Q No level of lockout The user has full access to all prompts and menus 1 The Setup Menu will be locked from view except for the prompt which can be viewed and changed The user will be able to change and view all prompts in the Operation Menu The Setup Menu will be locked from view except for the prompt which can be viewed and changed The user will be able to change the limit low and limit high set points only All prompts except for thel LL landl LH Um the Operation Menu will be locked from view Full lockout of prompts and menus All prompts in the Operation and Setup Menus will be locked from view The operator can use the Reset Key for clearing limits and alarms and for silencing alarms The operator can also use the QUp arrow and Down arrow keys to access the prompt in the Setup Menu which can be viewed and changed Input Selects the sensor input type The internal DIP switch must also match the Input parameter See Figure 4 1b for DIP switch orientation Refer to Table 4 5a on page 4 5 for input type temperature ranges Range J n l DL b Default Celsius _ Fahrenheit Selects the units of temperature measurement for the control Range C F Default ctdi rtd Range Low Selects the low range of the limit set point See the specifications information in the Appendix for your range values or refer to Table 4 5a on page 4 5 Ran
35. es instead Parameter Value Range Factory Default Appears If Loc 0 3 0 ln d K a l 5 d DIP svvitch selectable bi etd rtd LE Cor E LOT lis set to D cl cljto Input dependent LOC is set to D ch chlio Input dependent LOT is set to D oe 1 18 0 1 LOT is set to D HSL 1 9999 0 1 999 9 F 3 0 3 F L C lissettol 0 1 to 5555 0 1 to 555 5 C 2 0 2 C Gte Process Alarm LL is set to D P Process with no alarm message None HSR 1 9999 0 1 999 9 F 3 0 3 F GE c is set to P jor _P eAjand 1 5555 0 1 555 5 C 2 0 2 C LOT lis set to 186 LRtlorL ALR 18 L issettof 2 LE is set to 0 5 OFF OFF Ee issettof PzlorV Pz Aland LE is set to rtd J f5lorT dial din Injis set ol c Edor and LE is set to UP eol no display shown Pro LOClissettol Pr ol Process LoL Low limit set point H iL High limit set point L off Alarm low set point HA Alar
36. ether with one lead usually green wire tied to ground at one point Don t connect ground to the control case if the control is in a grounded enclosure preventing ground loops Do not confuse chassis grounds safety ground with control circuit com mons or with ac supply L2 return or neutral line Each return system wiring must be separate Absolutely never use chassis ground safety as a conductor to return circuit current Eliminating Noise e Use snubbers QUENCHARC P N 0804 0147 0000 to filter out noise generated by relays relay contacts solenoids motors etc A snubber is a simple filter device using a 0 1uf 600 volt non polarized capacitor in series with a 100Q 1 2 watt resistor The device can be used on ac or de circuits to effectively dampen noise at its source Refer to output wiring in Chapter Two for proper Quencharc installation The ultimate protection is an uninterruptable power supply This sens es the ac power line when the line fluctuates a battery powered 60Hz inverted circuit takes over supplying power within one half to one cycle of the ac line very expensive A 2 Appendix Watlow Series 94 Calibration Figure Entering the Calibration Menu NOTE Calibration values will not be retained unless Output 2 indi cator light is on Do not press the RESET key twice until you are at the correct input parameters NOTE While in the Calibra tion Menu the
37. etup Menu matches your sensor and DIP switches are set accordingly Error Code Actions Ere Er Ee To clear a corrected error press the Advance key to clear the input error code Wait for the upper display to change from showing to showing the process temperature The Limit message will appear Then press the RESET key to clear reset the error latched outputs There may be a 30 second delay from when the Advance key is pressed E Yjand E amp S result in these conditions Both outputs will turn off e The alarm output if present will be in an alarm state de energized with the indicator light on The upper display indicates the process value The lower display indicates the error code All keys are inactive All Setup Menu parameters return to default values The above conditions occur regardless of the value off GE or the presence of the Setup or Calibration Menus To clear a corrected error cycle power to the controller or press the RESET key Alarms and Errors Watlow Series 94 A Appendix Noise and Installation Guidelines For wiring guidelines refer to the IEEE Standard No 518 1982 available from IEEE Inc 345 East 47th Street New York NY 10017 Noise Sources Switches and relay contacts operating inductive loads such as motors coils solenoids and relays etc Thyristors or other semiconductor devices which are not zero crossover fired randomly fired or
38. ge Sensor range low to Default Low range of sensor type Range High Selects the high range of the limit set point See the specifications information in the Appendix for your range values or refer to Table 4 5a on page 4 5 Range Sensor range high to Default High range of sensor type Watlow Series 94 Setup 4 3 ro 20 tr iL E un r C x CO C un AR 0 D 20 Du c Ka Output 1 Selects which side or sides the limit setpoints can be programmed for Select for high side selectl 6 for low side or for both Range Hil 140 H L Default Hysteresis Limit Selects the switching hysteresis for Output 1 Range 1 to 9999 0 1 to 999 9 F 1 to 5555 0 1 to 555 5 C Default 3 0 3 F 2 0 2 C Output 2 Selects the output action for Output 2 Range P A Process alarm with alarm message displayed Process alarm with no alarm message displayed None Default Hysteresis Alarm Selects the switching hysteresis for Output 2 when is an alarm Appears only ift Qt lis settol PrAjor Pr Range 1 to 9999 0 1 to 999 9 F 1 to 5555 0 1 to 555 5 C Default 3 0 3 F 2 0 2 C Latching Selects whether the alarm is latching or non latching Latching alarms must be cleared by pressing the Reset Key Selecting non latching will automatically reset the alarm output when the condition clears Appears only if is set to P Rlort Range LAtjor _ al A Default Silencing
39. he controller returns to the default display Setup Menu Press O and for 3 seconds Lock Input Celsius Fahrenheit Range Low Range High Output 1 Limit Hysteresis Output 2 Hysteresis Alarm Latching Silencing RTD Upper Display Bottom Display 3 ir EN 5 x Se 5 5 kr D These parameters may be masked or hidden depending on the settings of your controller For an explanation of when the parameters will appear refer to Table 4 5b on page 4 5 4 27 Setup Watlow Series 94 Setup Parameters NOTE Shaded parameters may not appear depending on the controller s configu ration and model number NOTE Set the Lock parameter value as the final step in pro gramming the Series 94 controller to pre vent locking yourself out of the Operation and Setup Menu dur ing initial program ming A CAUTION Changing the Input parameters lets all parameters to factory defaults Document all settings before changing this n r e x lt x m r At the top of the Setup Menu the Series 94 displays the user level of operation in the upper display and the Lock parameter in the lower display Press the Advance key and the value of the next parameter appears in the upper display and the parameter appears in the lovver display Lock Selects the level of operator lock out as defined b
40. hield continuity at daisy chain connection points by recon necting the broken shield Q Assume no electrostatic shielding when using the shield as a signal return If you must do this use triaxial cable electrostatically shielded coaxial cable Appendix Watlow Series 94 Appendix A 1 xipuaddy e Use twisted pair wire any time control circuit signals must travel over two feet or when you bundle them in parallel with other wires Select the size or gauge of wire by calculating the maximum circuit current and choosing the gauge meeting that requirement Using greatly larger wire sizes than required generally increases the likelihood of electrostatic capacitance coupling of noise Eliminate ground loops in the entire control system You can spot the obvi ous loops by studying the as built wiring diagram There are also not so obvious ground loops resulting from connecting internal circuit commons in the manufacturer s equipment Do not daisy chain ac power or return lines or output signal or return lines to multiple control circuits Use a direct line from the power source to each input requiring ac power Avoid paralleling L1 power lead and L2 return lead to load power solenoids contactors and control circuits If an application uses L1 power lead to switch a load L2 return lead has the same switched signal and could couple unwanted noise into a control cir cuit e Tie all ground terminals tog
41. high voltage 1 12 to 24Vx ac dc low voltage Custom Options 00 Standard XX Preset parameters Display Upper Lower Upper Lower RR Red Red AA Red Red without Watlow logo RG Red Green AB Red Green without Watlow logo GR Green Red AC Green Red without Watlow logo GG Green Green AD Green Green without Watlow logo TTo effect IP65 NEMA 4X rating requires a minimum mounting panel thickness of 1 5 mm 0 06 inch and surface finish not rougher than 8121 mm 0 32u inch Use Greenlee punch 60287 Electromechanical relays warranted for 100 000 closures only Solid state switching devices recom mended for applications requiring fast cycle times or extended service life 3 Switching inductive loads relay coils etc requires using an RC suppressor Quencharc from ITW PAKTRON is recommended Watlow part number 0804 0147 0000 NOTE User documentation may be available in French German Spanish Italian and Dutch as well as English Check Watlow s website www watlow com for availability Specify language at time of order A 10 Appendix Watlow Series 94 index A Advance key 3 1 Alarm High 4 6 Alarm Low 4 6 alarms 5 1 clearing an alarm 5 1 latching 5 1 non latching 5 1 process 5 1 silencing 5 1 B C Bottom Display 4 4 calibration A 3 A 5 restoring factory calibration A 4 RTD calibration procedure A 5 Thermocouple cal procedure A 5 Calibration Menu A 4 Calibration Offset 4 6 CE Dec
42. his not active rL OE Nis setto H_L or L 0 and LLL lis not set ol 2 LHI LL lto eHlor elif LL 60 is not active eH L Nis settoL H Uor H land LL GC lis not set ol l LALO eLltoL RH flor c HIRT BH is not active cll OE 6 is setto Pr A or Pr and CLOT is set to C lorL 1 HU RL lto eHlor eLlifL BL Q is not active C t lis settot P A or Prjand _lOCiis set to Dol il Etnu 180 F to 180 F 100 C to 100 C 0 LLL is set to D or or 18 0 F to 18 0 F 10 0 C to 10 0 C 14 Appendix Watlow Series 94 Watlow Winona Watlow Winona is a division of Watlow Electric Manufacturing Company St Louis Missouri a manufacturer of industrial electric heating products since 1922 Watlow begins with a full set of specifications and completes an industrial product that is manufactured totally in house in the U S A Watlow products include electric heaters sensors controls and switching devices The Winona operation has been designing solid state electronic control devices since 1962 and has earned the reputation as an excellent supplier to original equipment manu facturers These OEMs depend upon Watlow Winona to provide compatibly engi neered controls which they can incorporate into their products with confidence Watlow Winona resides in a 100 000 square foot marketing engineering and manufacturing facility in Winona Minnesota How to Reach Us TOTAL CUSTOMER SATISFACTION 3 Year W
43. laration of Conformity A 12 Celsius Fahrenheit 4 3 clearing an alarm 5 1 D Declaration of Conformity A 12 default parameters Operation 4 6 Setup 4 3 4 5 dimensions faceplate 2 1 panel cutout 2 1 side view 2 1 DIP Switches 4 1 Display 3 1 Down arrow key 3 1 E entering the Setup Menu 4 2 error codes 5 2 error code actions 5 2 F feedback inside front cover field calibration A 5 G general description 1 1 Glossary A 7 A 8 H High Limit Set Point 4 6 high voltage wiring 2 3 Hysteresis Alarm 4 4 Hysteresis Limit 4 4 I indicator lights 3 1 Input wiring 2 4 DIP Switch 4 1 parameter 4 3 ranges 4 5 RTD 2 4 4 4 thermocouple 2 4 type 4 3 4 5 installation procedure 2 1 2 2 J K Keys 3 1 L ladder wiring diagram 2 7 Latching 4 4 5 1 Lock Parameter 4 3 Low Limit Set Point 4 6 low voltage wiring 2 3 Lower Display 3 1 4 4 M mechanical relay 5 Amp Output 1 Wiring 2 5 Output 2 Wiring 2 5 Model Number A 10 mounting collar 2 2 mounting case 2 2 N NEMA 4X seal 2 1 2 2 Noise eliminating A 2 sources A 1 decreasing sensitivity A 1 A 2 O Operation Menu 4 6 Operation Parameters 4 6 Output 1 2 5 2 6 4 4 Output 2 2 5 4 4 Output Wiring mechanical relay 2 5 switched de 2 6 solid state relay 2 6 overview of the Series 94 1 1 P power wiring 2 3 process alarm 5 1 Q Quick Reference Sheet A 13 A 14 R Range High 4 3 Range Low 4 3 removing controller 2 2 RESET key 3 1 restoring
44. lence A feature that disables the alarm relay output automatic prompts Data entry points where a micro processor based controller asks the operator to enter a control value Cc calibration offset An adjustment to eliminate the differ ence between the indicated value and the actual process value CE A manufacturers mark that demonstrates compli ance with European Union EU laws governing prod ucts sold in Europe CE compliant Compliant with the essential require ments of European directives pertaining to safety and or electromagnetic compatibility closed loop A control system that uses a sensor to measure a process variable and makes decisions based on that input cold junction See junction cold cold junction compensation Electronic means to compensate for the effective temperature at the cold junction compensation ambient The ability of an instrument to adjust for changes in the temperature of the environ ment and correct the readings Sensors are most accu rate when maintained at a constant ambient tempera ture When temperature changes output drifts control action The response of the control output rela tive to the error between the process variable and the set point For reverse action usually heating as the process decreases below the set point the output increases For direct action usually cooling as the process increases above the set point the output increases D E default parameters
45. m high set point bot no no display shown Hil is settot 6 Pr ol Process LoL Low limit set point H L High limit set point 1 off Alarm low set point HA Alarm high set point Watlow Series 94 Setup 4 5 Figure 4 6 The peration Menu NOTE Shaded parameters may not appear depending on the controller s configu ration and model D Re c S zx r x r i an CAL Table 4 6 Operation Menu Prompts and Descriptions Operation Menu Operation Menu LL Low Limit Set Point CLH 1 High Limit Set Point AL 0 Alarm Low RH 1 Alarm High 281 Calibration Offset These parameters may be masked or hidden depending on the settings of your controller For an explanation of when the parameters will appear refer to Table 4 6 below Operation Parameters Low Limit Set Point Sets the low limit set point Active if is set to orl 20 Range Lito Hor LH is not active High Limit Set Point Sets the high limit set point Active if S set to LH Uor HI Range 0ltol eHlorl el tt jis not active Alarm Low Represents the low process alarm This parameter will not appear if issettot nol This parameter is present if is set to or Prjand QOL lis set to Q or IL Range ltol eil AH His not active Default Alarm High Represents the high process alarm This parameter will not appear if is settot This
46. n 10507 2200550 0 A Declaration of Conformity A Quick Reference 222222 A c c m Co x KNL a mm m Es EA xn nn x FIQUIOS sas n da Page Series 94 Input amp Output Overview 1 1 Multiple Panel Cutout Dimensions 2 1a Series 94 DIMENSIONS 2 1b Mounting Case Side View 2 2a Mounting Collar Cross Section 2 20 Case Rear View amp NEMA 4X Seal Example 2 26 Power WIring ccccseceesesseceseseseeeeeeseseseeeeseaeeeeeeteeatees 2 3 Thermocouple Sensor Input Wiring 2 4a 2 or 3 wire RTD Sensor Input Wiring 2 4b Output 1 Mechanical Relay Wiring 2 5a Output 2 Mechanical Relay Wiring 2 5b Output 2 Solid state Relay w o Suppression Wiring 2 6a Output 2 Switched DC Wiring 2 6b System Wiring Example 2 7 Wiring Notes 2 8 Series 94 Keys and Displays
47. ncing inhibit on power up Output Configurations Output 1 e Limit output is latching e Output 2 User selectable as e Latching or non latching Process alarm with flashing alarm message Process without alarm message e Alarm with separate high and low set points e Hysteresis 1 to 9999 F 0 1 999 9 F 1 to 5555 C 0 1 to 555 5 C switching differential Line Voltage Power e 100 240V 10969 15 85 264V 50 60Hz 5 12VA max e 12 24Vx ac dc 10 15 10 26Vx ac dc 50 60 2 5 7 VA max Data retention upon power failure via non volatile memory Operating Environment e 32 to 149 F to 65 C 0 to 90 RH non condensing Storage Temperature e 40 to 185 F 40 to 85 C Terminals e 6 compression universal head screw terminals accepts 20 14 gauge wire e Torque to 1 4 Nm 12 in lb Controller Weight e 0 4lb 0 2 kg Shipping Weight e 0 75 Ib 0 34 kg Dimensions e Compact 1 16 DIN size and IP65 NEMA 4 4 front panel makes the Series 94 easy to apply and maintain in a wide variety of applications Unique mounting bezel gasket and collar make installation a snap Use Greenlee punch 60287 Overall Height 55mm 2 1 inches Width 55 mm 2 1 inches Depth 120 mm 4 7 inches Bezel Height 55 mm 2 1 inches Width 55 mm BS 1 inches Depth 15mm 0 6 inches Chassis Height 45 mm 1 8 inches VVidth 45 mm 1 8 inches Depth 105 mm 4 1 inches Agency Appr
48. nter Verwendung des wichtigsten Abschnitts bzw der wichtigsten Abschnitte die unten zur Befolgung aufgezeigt werden 89 336 EEC Elektromagnetische Kompatibilitatsrichtlinie EN 61326 1997 mit A1 1998 Elektrisches Ger t f r Messung Kontrolle und Laborgebrauch EMV Anforderungen St rfestigkeit Industriebereich Klasse A Emissionen EN 61000 4 2 1996 mit A1 1998 St rfestigkeit gegen elektronische Entladung EN 61000 4 3 1997 St rfestigkeit gegen Strahlungsfelder EN 61000 4 4 1995 St rfestigkeit gegen schnelle St6Be Burst EN 61000 4 5 1995 mit A1 1996 St rfestigkeit gegen berspannung EN 61000 4 6 1996 Geleitete St rfestigkeit EN 61000 4 11 1994 St rfestigkeit gegen Spannungsabfall kurze Unterbrechungen und Spannungssehvvankungen EN 61000 3 2 1995 mit A1 3 1999 Harmonische Stromemissionen EN 61000 3 3 1995 mit A1 1998 Spannungsfluktationen und Flimmern EN 61000 3 3 1995 Grenzen der Spannungsschwankungen und Flimmern 73 23 EEC Niederspannungsrichtlinie EN 61010 1 1993 mit A1 1995 Sicherheitsanforderungen f r elektrische Ger te f r Messungen Kontrolle und Laborgebrauch Teil 1 Allgemeine Anforderungen Declara que el producto siguiente Espa ol Designaci n Serie 94 N meros de modelo 9 4 A o B B 1 D A C D o K 0 1 Cualquier combi naci n de cuatro n meros y letras Clasificaci n Componente de seguridad Controlador de l mite de tem peratura categor a de instalaci n Il
49. om full on to full off See hysteresis T Z thermal system A regulated environment that consists of a heat source heat transfer medium or load sensing device and a control instrument thermocouple t c A temperature sensing device made by joining two dissimilar metals This junction pro duces an electrical voltage in proportion to the difference in temperature between the hot junction sensing junc tion and the leadwire connection to the instrument cold junction thermocouple break protection The ability of a control to detect a break in the thermocouple circuit and take a predetermined action A 8 Appendix Watlow Series 94 Specifications 2291 ontrol Mode e Microprocessor based user selectable control modes e Single input dual output e 2 5Hz Input Sampling Rate e 1Hz Display Update Rate e Automatic reset on power loss Operator Interface Sealed membrane front panel e Dual four digit red or green displays Advance QUp arrow Down arrow and Reset keys e User selectable screen display Accuracy e Calibration accuracy 0 1 of span 1 C at standard conditions Exceptions Type T 0 12 of span for 200 C to 50 C Types R and S 0 15 of span for 0 C to 100 C Types B 0 24 of span for 870 C to 1700 C e Accuracy span 1000 F 540 C minimum e Temperature stability 0 1 degree per degree change in ambient Sensors Inputs e Thermocouple grounded or ungrounded sensors e RTD 2 or 3
50. ory checksum discovered a checksum error Unless a momentary power interruption occurred while the controller was storing data the nonvolatile memory is bad Call the factory A D underflow error The A D circuit is underrange An open or reversed polarity sensor is the most likely cause Check the sensor if the connection is good and functions properly call the factory The A D underrange voltage is too low to convert an A D signal Make sure the Input parame ter Setup Menu matches your sensor and DIP switches are set accordingly A D overflow error The A D circuit is overrange An open or reversed polarity sensor is the most likely cause Check the sensor if the connection is good and the sensor functions properly call the factory The A D overrange voltage is too high to convert an A D signal Make sure the ea Input parameter Setup Menu matches your sensor and DIP switches are set accordingly Flashing or in the lower display indicates an alarm when is set tol Pr A The lower display alter nately shows information from the current parameter and the or alarm message at one second intervals The alarm output is de energized and the Output 2 indicator light is lit LIMIT 94 Appendix Watlow Series 94 Appendix A 13 KZ KZ GH gt lt Enter the Setup Menu by pressing the OUp arrow and ODown arrow keys simulta neously for three seconds The lower display shows the C
51. ovals e FM3545 File J 1LOD5A1 AF es IP65 NEMA AN and NEMA 124 e CE approved See Declaration of Conformity 1 Electromechanical relays warranted for 100 000 closures only Solid state switching devices recommended for applications requiring fast cycle times or extended service life 2 Switching inductive loads relay coils etc requires using an RC suppressor Quencharc from ITW PAKTRON is recommended Watlow part number 0804 0147 0000 3 Operating environment is 0 to 60 C for line voltage exceeding 240V 4 To effect IP65 NEMA 4X rating requires a minimum mounting panel thickness of 1 5 mm 0 06 inch and surface finish not rougher than 8121 mm 0 321 inch Use Greenlee punch 60287 Appendix Watlow Series 94 Appendix A 9 xipuaddy Series 94 Model Number Information Ordering Information 2292 94 1 Part Number Microprocessor based 1 16 DIN Single Input Dual Output Four Digit Displays IP65 NEMA 4 Option A Without IP65 NEMA 4X Rating B With IP65 NEMA 4X Rating CE Option A Without CE B With CE Output 1 Limit D Electromechanical relay Form C 5A without contact suppression Output 2 Alarm A None C Switched dc output non isolated D Electromechanical relay Form C 5A without contact suppression K Solid state relay Form A 0 5A without contact Suppression Line Voltage Power 0 100 to 240V nominal
52. phase angle fired devices All welding machinery and heavy current carrying conductors Fluorescent and neon lights Decreasing Noise Sensitivity Physical separation and wire routing must be given careful consideration in planning the system layout For example ac power supply lines should be bundled together and physically kept separate from input signal lines sensor lines A 12 305 mm minimum separation is usually effective Keep all switched output signal lines high power level separate from input signal lines sensor lines Cross other wiring at 90 angles whenev er crossing lines is unavoidable Look at the system layout identify and locate electrical noise sources such as solenoids relay contacts motors etc Route the wire bundles and cables as far away as possible from these noise sources Don t mount relays or switching devices close to a microprocessor control Don t have phase angle fired devices in the same electrical enclosure or on the same power line with the control Shielded cables should be used for all low power signal lines to protect from magnetic and electrostatic coupling of noise Some simple pointers are Q Whenever possible run low level signal lines unbroken from signal source to the control circuit Q Connect the shield to the control circuit common at the control end only Never leave the shield unconnected at both ends Never connect both shield ends to a common or ground Q Maintain s
53. r Quenchare brand name which is a trademark of ITW Paktron Watlow Part No 0804 0147 0000 A WARNING To avoid damage to property and equipment and or injury or loss of life use National Electric Code NEC standard wiring prac tices to install and operate the Series 94 Failure to do so could result in such damage and or injury or death Output 1 Wiring Figure 2 5a Mechanical Relay Without Contact Suppression 94__ 1D__ 00_ Form C 5 amps Minimum load current UI UZ N O contact opens in limit condition N C contact closes in limit condition 100 mA at 5V dc e g 8 NC 9 COM L1 UI ili Extemal 5 Load Customer installed o Quencharc for inductive loads only See note 1 CG KZ g L2 Output 2 Wiring Figure 2 5 Mechanical Relay Without Contact Suppression 94 _ 1DD_ 00__ Form C 5 Amp Minimum load current 100 mA at 5V dc N O contact opens in alarm condition N C contact closes in alarm condition Fuse vol ll 6 Q L1 7 NO 2 ll External 2 Load L2 Customer installed Quencharc for inductive loads only See note 1 Watlow Series 94 Install and Wire 2 5 Lea m gt CD NOTE Output is in de energized state in Alarm Condition NOTE 1 Switching inductive loads relay coils solenoids etc with the mechanical relay solid state relay output options req
54. s 2 8 Install and Wire Watlow Series 94 How to Use the Keys and Displays After one minute vvith no key activations the controller reverts to the default displays Lovver Display Can indicate actual temperature alarm lovv alarm high limit lovv set point value limit high set point value output value parameters for data in the upper display or error and alarm codes e To set to blank set to in the Setup Menu Advance Key Press to step through the Operation Setup and Calibration Menus Up arrovv and Down arrow Keys ncreases or decreases the value of the displayed parameter e Press once to increase or decrease the value by one e Press and hold down to increase or decrease the displayed value at a rapid rate New data will self enter in five seconds or can be entered by pressing the Advance Key e Press both simultaneously for three seconds to enter the Setup Menu The Lock parameter appears e Continue pressing both keys for three seconds to enter the Calibration Menu Upper Display Can indicate actual temperature alarm low alarm high limit low set point value limit high set point value operating parameter values or an open sensor When powering up the upper display will be blank for five seconds e To set to blank set to in the Setup Menu Figure 3 1 Series 94 Keys and Displays Output 1 Indicator Light Lit when limit output is tripped Output 2
55. that moni tors and limits the temperature of the process or a point in the process When temperature exceeds or falls below the limit set point the limit controller interrupts power through the load circuit A limit control can protect equipment and people when it is correctly installed with its own power supply power lines switch and sensor Appendix Watlow Series 94 Appendix 7 xipuaddy manual mode A selectable mode that has no automatic control aspects The operator sets output levels N NEMA 4X A NEMA specification for determining resis tance to moisture infiltration and corrosion resistance This rating certifies the controller as washable and corro sion resistant o on off A method of control that turns the output full on until set point is reached and then off until the process error exceeds the hysteresis open loop A control system vvith no sensory feedback output Control signal action in response to the differ ence between set point and process variable overshoot The amount by which a process variable exceeds the set point before it stabilizes P Q parallel circuit A circuit configuration in which the same voltage is applied to all components with current divided among the components according to their respective resistances or impedances parameter A variable that is given a constant value for a specific application or process process variable The parameter that is controlled or
56. tlow Series 94 User s Manual Watlow Winona 1241 Bundy Blvd P O Box 5580 Winona MN 55987 5580 Phone 507 454 5300 Fax 507 452 4507
57. tore factory calibration Test display Runs automatically Ki L OOO Input 0 00mV for low input 980 Input 50 00mV for high input Before attempting to calibrate make sure you have the proper equipment called for in each procedure The Series 94 is calibrated and tested before it leaves the factory A 4 Appendix Watlow Series 94 NOTE Before calibration on an installed con troller make sure all data and parameters are documented See the Setup and Operation Tables in Chapter Four NOTE VVhen the Output 2 indicator light is on the controller is au tomatically calibrat ng Your sequence is VERY important Alvvays move to the next parameter before changing the calibration equip ment Thermocouple Field Calibration Procedure Equipment Required Type J Reference Compensator with reference junction at 32 F 0 C or Type J Thermocouple Calibrator set at 32 F 0 C Precision millivolt source 0 50mV min range 0 01mV resolution Setup And Calibration 1 2 Connect the ac line voltage L1 and L2 to the proper terminals Connect the millivolt source to Terminal 5 Negative and Terminal 8 Positive on the Series 94 terminal strip Use regular 20 24 gauge vvire Make sure the D P svvitch is set for thermocouple input See Chapter 4 Apply power to the controller and allow it to warm up for 15 minutes After warm up put the controller in the Calibration Menu Select 5
58. ty Class A 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 A1 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 1995 With A1 3 1999 Harmonic Current Emissions EN 61000 3 3 1995 With A1 1998 Voltage Fluctuations and Flicker 73 23 EEC Low Voltage Directive EN 61010 1 1993 With A1 1995 Safety Requirements of electrical equipment for measurement control and laboratory use Part 1 General requirements D clare que le produit suivant D signation Num ro s de mod le s Frangais S rie 94 9 4 A ou B B 1 D A C D ou K 0 ou 1 quatre chiffres ou lettres quelconques Composant de s curit limiteur de temp rature installation cat gorie II degr de pollution 2 100 240 V ou 24 28 Va 50 60 Hz Classification Tension nominale Fr quence nominale Consommation d alimentation nominale 7 VA maximum 12 a 24 V ou 12 VA maximum 100 a 240 V Conforme aux exigences de la ou des directive s suivante s de Union Europ enne fig urant aux sections correspondantes des normes et documents associ s ci dessous 89 336 EEC Directive de compatibilit lectromagn tique EN 50082 2 1995 Norme g n rique d insensibilit l
59. uires use of an R C suppres sor Watlow carries the R C suppressor Quenchare brand name which is a trademark of ITW Paktron Watlow Part No 0804 0147 0000 NOTE 2 When an external device with a non isolated circuit common is connected to the de output you must use an isolated or un grounded thermocouple A WARNING To avoid dam age to property and equipment and or injury or loss of life use National Electric Code NEC standard wiring practices to install and operate the Series 94 Failure to do so could result in such damage and or injury or death Figure 2 6a Solid state Relay Without Contact Suppression 94 1 00 0 5 Amp AC loads only Form A 1852 L1 mn e 7 SS2 a External Bi Ee VE installed Quencharc for inductive loads only See note 1 Figure 2 6b Switched DC 94 _ 1DC_ 00__ H 7 H See note 2 1 7 to 10V de unregulated 1000 Internal Circuitry 2 6 Install and Wire Watlow Series 94 1 14 02 621 tee A NOTE Successful installation Wi ri n H Fxa m H e requires four steps e Choose the controller s hardware configuration E and model number oo Appendix Earth Ground e Choose a sensor Bi High Limit Chapter Two and 7 Appendix e Install and wire the controller Chapter Two e Configure the con troller Chapters Three al 12 Four and Five Digi 93BB 1CA0 00RR
60. way con ditions resulting from a shorted input sensor or a failed output device A limit controller is recommended in any application where thermal runaway could affect operator safety damage equipment or cause large product scrap costs The limit output is latching An optional process alarm output can be config ured as latching or non latching with high and low alarm set points Special 94 features include the optional NEMA 4X rating dual four digit dis plays in either red or green and optional low voltage power supply Operator friendly features include automatic LED indicators to aid in moni toring and setup as well as a calibration offset at the front panel The Watlow Series 94 automatically stores all information in a non volatile memory Watlow Series 94 Overview 1 1 Notes 1 2 Overview Watlow Series 94 install and Wire the Series 94 NOTE For rapid mounting use Greenlee 1 16 DIN punch die draw stud part number 60287 NOTE Measurements between panel cutouts are the mini mum recommended Figure 2 1a Series 94 Multiple Panel Cutout Dimensions Figure 2 1b Series 94 Dimensions 2 1 1 77 to 1 79 53 mm 1 4 to 45 47mm WATLOW LIMIT 94 T H 4 Panel Cutout 2 Your Panel g Thickness 1 77 to 1 79 H YO 44 96mm 0 06 to 0 38 to 45 47mm 1 5 10 9 7 S 111 22 0 38 9 65mm il Minimum 0 85 20mm 4 7
Download Pdf Manuals
Related Search