INSTRUCTIONS FOR THE 32A SERIES 1/32 DIN
Contents
1. then skip to S1rE S10L S10H If Out1 is SirE S1Pi S1iH S1LP Page 28 Set Point Output Low Limit Select 0 to 100 but not greater than S1OH This item limits the lowest output value This is useful for adding a bias to the process when needed Factory Set to 0 for output codes 1 2 and 3 Factory set to 20 for output code 5 2096 output equals 4 mA output Set Point 1 Output High Limit Select 0 to 100 but not less than S1OL for output codes 1 2 or 3 Select 0 to 102 but not less than S1OL for output code 5 This item allows setting the maximum output limit This is useful with processes that are overpowered Adjustment to 10296 allows setting current output to force a full on condition for output devices which do not have bias adjustments Factory set to 100 for all output codes Set for tP PUL or ProP then skip to S1LP on next page Set Point 1 Reset Select OnOF or Hold OnOF Control will automatically reset when process passes back through SP1d HoLd Manual Reset Reset acknowledge by simultaneously pressing the INDEX amp DOWN ARROW keys for 5 seconds Set Point 1 Power Interrupt Select On or OFF On Alarm Power Interrupt is On Control will automatically reset on power up if no alarm condition exists OFF Alarm Power Interrupt is OFF Control will power up in alarm condition regardless of condition of process Set Point 1 Inhibit Select On or OFF On Alarm Inhibit is On Alarm action i2. 10 1596 50 to 400 Hz single phase 132 to 240 VDC nominal 10 20 Supply Voltage Option 9502 12 to 24 VDC Vac 40 400 Hz 20 Power Consumption 5VA maximum Operating Temperature 10 to 55 C 14 to 131 F Storage Temperature 40 to 80 C 40 to 176 F Humidity Conditions 0 to 90 up to 40 C non condensing 10 to 50 at 55 C non condensing Memory Backup Nonvolatile memory No batteries required Control Output Ratings AC SSR Output A Output B 0 75 A 240 VAC at 25 C 77 F derates to 0 5 A 55 C 130 F DC SSR Output A Output B 1 25 A 32 VDC at 25 C 77 F derates to 1 0 A 55 C 130 F Relay Output A Output B SPST 3A 240 VAC resistive 1 5A 240 VAC inductive 1 10 HP 120 VAC Current non isolated Output A only 0 to 20 mA accross 600 ohms maximum Switched Voltage non isolated Output A Output B 5 VDC 20 mA Panel Cutout 45 0 mm x 22 2 mm 1 772 x 0 874 Depth Behind Mounting Surface 111 6 mm 4 3957 Weight 114 g 4 oz Agency Approvals CE Front Panel Rating Type 4 IP66 Page 32 DIAGNOSTIC ERROR MESSAGES MEANING SP OUTPUTS ACTION REQUIRED Underflow or Overflow Process value has exceeded input range ends Set point outputs active Alarm active Input signals may normally go above or below range ends If not check input and correct UFL or OFL will sequence to display one of these messages if the InPt is s
3. Out1 Output selection Select OnOf 1tP 1PuL or ProP ONOF A setting of ONOF allows the control to operate as a simple on off mode This setting forces the control to turn off at set point and on at the set point plus the differential SP d When selected the Out1 OnOF menu item is followed by THHHE SP 1d and the tunE Pb rES OFS rtE and ArUP selections in the Secondary menu and the 101 and S1OH selections in the Secure menu are suppressed SP d Set Point On Off Differential hysteresis Select 1 to 9999 direct acting or 1 to 9999 reverse acting This value will be negative for reverse acting set points and positive for direct acting outputs Set the value for the amount of difference between the turn off point set point and the turn on point The following drawing shows output behavior for reverse and direct action DIRECT ACTING SPSt dir UPSCALE DIFFERENTIAL REVERSE ACTING SPSt rE DOWNSCALE DIFFERENTIAL OUTPUT OUTPUT 0 DIFF INPUT 0 DIFF INPUT A SP DISPLAYED VALUE SP DISPLAYED VALUE Page 20 tP ProP Time Proportioning Cycle Time Select 1tP to 80tP 1tP A setting of 1tP is recommended for solid state outputs SSR or 15VDC 2tP to 80tP Time Proportioning Control is adjustable in 1 second steps Recommended for mechanical outputs relays solenoids etc For best contact life a time should be selected as long as possible without causing the process
4. Zero Suppression Select On or OFF Only with Current and Voltage input types OFF The input range will start at O zero Input On The input range will start at 4 00 mA or 1 00 V F C or None F F descriptor is On and temperature inputs will be displayed in actual degrees Fahrenheit C C descriptor is On and temperature inputs will be displayed in actual degrees Celsius nonE F and C descriptors will be Off This is only available with Current and Voltage Inputs Decimal Point Positioning Select 0 0 0 0 00 or 0 000 On temperature type inputs this will only effect the Process Value SP1 SP2 ALLo ALHi and InPC For Current and Voltage Inputs all Menu Items related to the Input will be affected 0 No decimal Point is selected This is available for all Input Types 0 0 One decimal place is available for Type J K E T L RTD s Current and Voltage Inputs 0 00 Two decimal places is only available for Current and Voltage Inputs 0 000 Three decimal places is only available for Current and Voltage Inputs Input Fault Timer Select OFF 0 1 to 540 0 minutes Whenever an Input is out of range UFL or OFL displayed shorted or open the timer will start When the time has elapsed the controller will revert to the output condition selected by InPb below If OFF is selected the Input Fault Timer will not be recognized time infinite Input Fail Action Select FAIL AVE or PrE When the Input is out of range UFL or O
5. 1 2 or 3 Select 0 to 102 but not less than S2OL for output code 5 This item allows setting the maximum output limit This is useful with processes that are overpowered Adjustment to 102 allows setting current output to force a full on condition for output devices which do not have bias adjustments Factory set to 100 for all output codes Set Point 2 Reset Select OnOF or Hold OnOF Control will automatically reset when process passes back through SP2d HoLd Manual Reset Reset acknowledge by simultaneously pressing the INDEX amp DOWN ARROW keys for 5seconds Set Point 2 Power Interrupt Select On or OFF On Alarm Power Interrupt is On Control will automatically reset on power up if no alarm condition exists OFF Alarm Power Interrupt is OFF Control will power up in alarm condition regardless of condition of process Set Point 2 Inhibit Select On or OFF On Alarm Inhibit is On Alarm action is suspended until the process value first enters a non alarm condition OFF Alarm Inhibit is OFF Set Point 2 Lamp Select O on or OoFF O on Lamp ON when Output is ON OoFF Lamp OFF when Output is ON Page 29 The following menu item applies only to the alarm when programmed AL Alarm function Select OFF Lo Hi HiLo or Evnt OFF Alarm is disabled No Alarm menu items appear in the Secondary or Secure menus Lo Low Alarm Only ALLo appears in the Secondary Menu Hi High Alarm Only ALHi appears in the Secondary Me
6. 5000 ohms Sensor Break Protection De energizes control output to protect system after customer set time See InPt in Secondary Menu Set Point Range Selectable See Range Chart Page 35 Display Two 4 digit 7 segment 6 35 mm 0 25 high LEDs Control Action Reverse usually heating Direct usually cooling selectable Proportional Band 1 to 9999 F C or counts Reset Time Integral Off or 0 1 to 99 9 minutes Rate Time Derivative Off or 0 01 to 99 99 minutes Cycle Rate 1 to 80 seconds On Off Differential Adjustable 1 F 1 C or 1 count to full scale in 1 F 1 C or 1 count steps Alarm On Off Differential 1 F 1 C or 1 count Fuzzy Percent 0 to 100 Fuzzy Rate Off or 0 01 to 99 99 minutes Fuzzy Band Off or 1 to 4000 F C or counts Accuracy 0 2590 of span 1 least significant digit Resolution 1 degree or 0 1 degree selectable Line Voltage Stability 0 05 over the supply voltage range Temperature Stability 4uV C 2 3 uV F typical 8 uV C 4 5 uV F maximum 100 ppm C typi cal 200 ppm C maximum Common Mode Rejection 140 db minimum at 60 Hz Normal Mode Rejection 65 db typical 60 db at 60 Hz Isolation Relay outputs 1500 VAC to all other inputs and outputs SP1 Current output Non isolated share common ground with input SP1 and SP2 Switched Voltage outputs Non isolated shares common ground with input Supply Voltage 100 to 240 Vac nominal
7. AUTO while in manual slowly change the percentage of output until the process variable matches or at least is close to the set point The further away the PV is from the Set point the greater the bump or upset there will be in the output OPERATION OF SELF TUNE FUNCTION Self Tune allows automatic selection of the necessary parameters to achieve best control operation from your 32A Series control If you are using the control output as a simple on off function Out1 set for OnOF none of the following will apply Theory of Operation The Self Tune function calculates the Pb1 rES and rtE parameters under the PID tunE selection and the Fbnd and FrtE parameters as shown in the Secondary Menu These values are determined by measuring the response of the process connected to the control When Self Tune is started the con trol temporarily acts as an on off control While in this mode the control measures the overshoot and undershoot of the process and the period of the process the time from peak value to the next peak value These measurements are collected over a period that lasts three periods of overshoot and undershoot The data collected over this time is then compared and calculated into final PID and Fuzzy Logic values The effect of Fuzzy Logic on the process is still controlled by the Fint fuzzy intensity setting If Fint is 0 the Fbnd and FrtE will be calculated but will have no effect The calculations for the PID values are the
8. No 2 5 VDC 8 DC SSR 1 SSR 8 DC SSR 1 Yes 3 Relay 2 5VDC Options 992 RS 485 Serial Communications Allows remote computer to read and write all control parameters 9502 12 24 VDC VAC 50 400Hz power supply control operates on low voltage equipment Note Only Option 9502 may be combined with another option No other options may be combined INSTALLATION Mount the instrument in a location that will not be subject to excessive temperature shock or vibra tion All models are designed for mounting in an enclosed panel Select the position desired for the instrument on the panel If more than one instrument is required maintain the minimum of spacing requirements as shown on the drawing opposite Closer spacing will structurally weaken the panel and invalidate the IP66 UL type 4 rating of the panel It is not necessary to remove the control chassis from the housing for instal lation If the control chassis is removed from the housing you must follow industry standard practice for control and protection against Electro Static Discharge ESD Failure to exercise good ESD practices may cause damage to the control Page 4 Prepare the panel by cutting and deburring the required opening s 25 4 1 00 45 0 6 20 5 1 772 0 02 0 807 22 2 0 3 0 874 0 012 d From the front of the panel slide the housing through the cutout The housing gasket should be flat against the housing flange before installing Fr
9. S2t dE or the ALLO and ALHi values ALt dE for a deviation alarm set the difference in value from the Set Point 1 SP1 desired For example if a low alarm is required to be 5 degrees below the SP1 then set SP2 or ALLO to 5 If a high alarm is required 20 degrees above the SP1 then set SP2 or ALHi to 20 If SP1 is changed the alarm SP2 ALLO ALHi will continue to hold the same relationship as originally set When Set Point Power Interrupt S Pi or Alarm Power Interrupt ALPi is programmed ON and Set Point Reset S rE or Alarm Reset ALrE is programmed for Hold the alarm will automatically reset after a power failure and on subsequent power restoration if no alarm condition is present If Set Point Inhibit S iH or Alarm Inhibit ALiH is selected ON an alarm condition is suspended upon power up until the process value passes through the alarm set point once Alarm inhibit can be restored as if a power up took place by pressing both the INDEX and ENTER keys for 5 seconds Warning Resetting a high set point inhibit will not cause an alarm to occur if the Process Value does not first drop below the high set point value Do not use the Set Point Inhibit feature if a hazard is created by this action Be sure to test all combinations of high and low set point inhibit actions before placing control into operation Page 17 Serial Communications Options and Non volatile Memory There are many different types of memory used in com
10. at the initial start the ramp will calculate differently Page 12 Ramp Soak Operation When you wish to start the program enter the Secondary Menu and set the Prog menu item to On Return to the HOME position by waiting for the display to time out or by pressing the UP ARROW ENTER keys and then the DOWN ARROW INDEX keys The home display will read as it normally does The HOLD indicator over the RUN HOLD key will be lit To start the program press INDEX to display Prog Press the UP ARROW key to select run and press ENTER The HOLD indicator will go out and the program will start To suspend the program at any time INDEX to Prog press the DOWN ARROW key to display HOLd and press ENTER To resume INDEX to Prog press the UP ARROW to select run and press ENTER Entering the AUTO MANUAL mode will also suspend the program operation The difference is that AUTO MANUAL also puts the control into manual mode See Auto Manual Operation The function of the Primary Menu will change depending on the setting of the StAt menu item in the Secondary Menu If StAt is OFF then the Primary Menu is not changed Ifthe StAt menu item is set to On then the Primary Menu has three additional information items added before SP1 appears The first INDEX item ti displays the time remaining in the current seg ment The next INDEX item l ti displays the total time for the active segment 1ti 16ti The third INDEX item 5
11. control has measured since the last reset or Power On At Power On PEA is reset to the present input To manually reset the value PEA must be in the lower display Press the ENTER key to reset PEA will be reset and display the present input value The Valley feature stores the lowest input the Instrument has measured since the last reset or Power On At Power On UAL is reset to the present input To manually reset the value UAL must be in the lower display Press the ENTER key UAL will be reset and display the present input value Percent Output Feature Select On or OFF When selected the HOME lower display will indicate the output of the controller in percent An o will appear in the right hand side of the lower display to indicate percent output for SP1 An will appear on the right hand corner of the lower display to represent percent output for SP2 if the control is so equipped The display will alternate between these values OFF Percent Output display is disabled Ramp Soak Feature Select On or OFF Allows Programmed Ramp Soak function to be started the Run Hold key on the control front panel OFF Turns Ramp Soak function OFF and resets program to beginning Programmer function set Select On or OFF OFF Skip Ramp Soak Programming Go to next Secondary Menu Item In PC on the next page On Enable Ramp Soak Programming Programmer Status Display in the Primary Menu when Prog above is On Sel
12. displays the segment set value 15 165 The next INDEX press resumes the normal Primary Menu Page 13 AUTO MANUAL OPERATION The AUTO MANUAL function allows you to manually adjust the output of the control This is normal ly used during process setup or start up It can also be used for troubleshooting To switch from AUTO to MANUAL press INDEX to Auto Press the UP ARROW to select OFF and press ENTER The MANual indicator will light and the lower display will change from normal to showing the actual output in percent The value will be the actual percentage of output that was active when the key was pressed This is usually known as bumpless transfer If you wish to change the output while in manual press the UP ARROW or DOWN ARROW keys to change the value and press ENTER to retain it It is important to remember that the value of the dis play can be read as 0 to100 of the full control output or 0 to 10096 of the range between S1OL and S1OH S2OL and S2OH If APct is set for rEAL a reading of 50 in MANUAL represents 10 mA If APCt is set for AdJ then 50 in MANUAL will represent the mid point in output between S1OL and S10H Assuming S1OL is 20 and S10H is 100 4 to 20 mA 50 will represent 12 mA To return to AUTOmatic control press the ENTER until Auto is displayed Press the DOWN ARROW key to On and press ENTER The MANual indicator will go out and the set point will take over If you want bumpless transfer back to
13. error message will be displayed Option 992 Serial Communications Control Address Set from1 to 3FF This number hexadecimal base 16 must match the address number used by the host computer Viewed only in this menu To change this parameter see Addr in the Secure Menu SECURE MENU Hold UP ARROW amp ENTER for 5 Seconds Press INDEX to advance to the next menu item Press UP ARROW or DOWN ARROW to change the value in the display Press ENTER to retain the value OUTPUTS ARE DISABLED TURNED OFF WHILE CONTROL IS IN SECURE MENU SECr Security Code See the Security Level Selection and the Password Table in this manual in order to enter the correct password InP Input Type Select one of the following Refer to the Input wiring section for the proper wiring J IC Type J Thermocouple CA Type K Thermocouple E Type E Thermocouple t Type T Thermocouple L Type L Thermocouple n Type N Thermocouple r 13 Type R Thermocouple S 10 Type S Thermocouple b Type B Thermocouple C Type C Thermocouple P392 100 ohm Platinum NIST 0 00392 C n120 120 ohm Nickel P385 100 ohm Platinum DIN 0 00385 C 1P38 1000 ohm Platinum DIN 0 00385 C Curr DC Current Input 0 0 to 20 0 or 4 0 to 20 0 mA DC Voltage Input 0 0 to 5 0 or 1 0 to 5 0 volts diFF DC Voltage Input 10 to 10 mV Reserved Page 25 OSUP Unit dPt InPt InPb APCt Page 26
14. no Learning will stay in present mode dFAC Damping factor Select OFF 1 to 7 Sets the ratio of Rate to Reset for the SELF tunE mode 7 most Rate Factory set to 3 For a fast response process the value should be lowered less Rate For a slower process the value should be increased more Rate Pid Manually adjust the PID values PID control consists of three basic parameters Proportional Band Gain Reset Time Integral and Rate Time Derivative Pb1 Proportional Band Bandwidth Select 1 to 9999 F C or counts Pb2 Proportional Band Bandwidth Select 1 to 9999 F C or counts Appears only if control is equipped with second set point and Out2 is NOT selected as ONOF rES Automatic Reset Time Select OFF 0 1 to 99 9 minutes Select OFF to switch to OFS OFS Manual Offset Correction Select OFF 0 1 to 99 9 Select OFF to switch to rES rtE Rate Time Select OFF 0 01 to 99 99 minutes Derivative SLO PID values are preset for a slow response process nor PID values are preset for a normal response process FASt PID values are preset for a fast response process Linkage of PID parameters between SP1 and SP2 Select On or OFF On Applies SP1 rEs rtE Fbnd and FrtE terms to SP2 for heat cool applications OFF SP2 functions without rEs rtE Fbnd and FrtE Does not appear if not equipped with second output or if second output is programmed as alarm Anti Reset Windup Feature Select On or OFF On When ArUP is O
15. positive for direct acting outputs Set the value for the amount of difference between the turn off point set point and the turn on point The drawing on the previous page See SP1d shows output behavior for reverse and direct acting Time Proportioning Cycle Time Select 1tP to 80tP 1tP A setting of 1tP is recommended for solid state outputs SSR or 15VDC 2tP to 80tP Time Proportioning Control is adjustable in 1 second steps Recommended for mechanical outputs relays solenoids etc For best contact life a time should be selected as long as possible without causing the process to wander PuL Pulsed Time Proportioning Output Select 1PuL to 7PuL 1PuL Linear and 7PuL most nonlinear Changes output linearity for use in cooling applications or for an extremely fast response processes At the center of the proportional band a pulse value of 1 provides an output of one second on and one second off 50 output A pulse value of 2 provides an output of one second on and two seconds off 3396 output Output at center of band equals one second 2898 seconds off Page 21 tunE Pid2 ArUP ArtE Fint Fbnd Page 22 Tuning Choice Select SELF Pid SLO nor or FASt SELF The Controller will evaluate the Process and select the PID values to maintain good control Active for SP1 only LErn Select YES or no YES Start Learning the Process After the process has been learned the menu item will revert to no
16. same as used in the standard Ziegler Nichols equations that have been rec ognized as standard for decades The only modification to the application of the Ziegler Nichols equations is controlled by the dFAC menu item This menu item controls the amount of rate derivative that is applied A dFAC setting of 3 factory default or less allows for less damping A dFAC setting of 4 allows for critical damping as set forth in Ziegler Nichols A dFAC setting of 5 or more allows over damping of the process Program Setup and Operation In the secondary menu set tunE to SELF Skip LErn and check to make sure that dFAC is set to the desired value Back up to LErn and set to YES The control will begin the Self Tune function While the Self Tune function is active the right hand decimal point on the lower display will blink When Self Tune is complete the blinking will stop After Self Tune is complete the tunE setting automatically switches to PID This allows examination and or modification of the values calculated We recommend that you do not change the calculated values unless you have a firm understanding of the parameters involved and their function For more information on PID tuning please contact your supplier Page 14 OPERATION AND PROGRAMMING OF OPTIONS Option 992 Serial Communication The serial communications option allows the control to be written to and read from a remote comput er or other similar digital device Communicat
17. Bulletin 949 1311 INSTRUCTIONS FOR THE 32A SERIES 1 32 DIN MICROPROCESSOR BASED TEMPERATURE PROCESS CONTROL LOVE CONTROLS LOVE CONTROLS DIVISION Phone 219 879 8000 DWYER INSTRUMENTS INC www love controls com P O BOX 373 MICHIGAN CITY Fax 219 872 9057 INDIANA 46361 U S A e mail love love controls com CONTENTS INSTALLATION eras oido oce benedi dd ete e be dod dd diee bot e t ded 4 cemere PE 5 Wiring for Optional Inputs and Outputs s usasqa eee 6 Wiring for 4 to 20mA Transmitter inputs gt is liliis 7 FRONT PANEL KEY FUNCTIONS urls PB TR TENE RR SURE p een 8 NOTATION CONVENTIONS FOR THE MENUS 10 THE HOME DISPLAY 1 zr drei S tere tere e olo enr ace Ege FO epe ederet 10 PROGRAMMING AND OPERATION FOR RAMP SOAK FEATURE 11 Theory of Operation inan nrbe Rede aasawa aus u uqata wa 11 Program Sep a a awa sina 12 Soak Operation uuruuu RR eub kas roce Dear cad haus meee Ie n d o 13 AUTO MANUALE OPERATION u lu uyu kp pagasqa chad uqa payqam eue e 14 OPERATION OF SELF TUNEG FUNCTION i pk ERI Debra edo e Rn 14 Theory of Operation dev shan cS eek oe e eor UR ERE E wasa 14 Program Setup and Operation us uwawan tees 14 OPERATION AND PROGRAMMING OF OPTIONS 15 Option 992 Serial Communication 15 CHAN
18. FL displayed and the Input timer InPt time has elapsed the controller will revert to the selected condition FAIL Outputs are disabled go to 0 output AVE The outputs will hold at the last known average percentage of output PrE The outputs will maintain a preprogrammed percentage of output as specified in PrE1 and PrE2 PrE1 Preset output for Set Point 1 Select 0 to 100 PrE2 Preset output for Set Point 2 Select 0 to 100 Manual and PctO display adjustment Select rEAL or AdJ rEAL Manual display will display output 0 to 100 relative to actual range of the output AdJ Manual display will display output 0 to 100 relative to the S OL and S OH settings SEnC SCAL SCAH SPL SPH SP1O S1St Sensor Rate of Change Select OFF 1 to 4000 F C or counts per 1 second period This value is usually set to be slightly greater than the fastest process response expected during a 1 second period but measured for at least 2 seconds If the process is faster than this setting the SEnC bAd error message will appear The outputs will then be turned off This function can be used to detect a runaway condition or speed up detection of an open thermocouple Use the INDEX amp ENTER keys to reset Scale Low Select 100 to 9999 counts below SCAH The total span between SCAL and SCAH must be within 11998 counts Maximum setting range is 1999 to 9999 counts For Current and Voltage inputs this will set the low range end Viewable
19. GING PROGRAMMING FOR SET POINT 2 AND ALARM 15 FACTORY DEFAULT PROCEDURE sireci i oe aaa RR e Peeing Ue 16 ALARM TYPE AND ACTION u l usunanpaq Hendin geb dele bead ud 17 MENU SELECTIONS iret cote dhe ieee ees eee es DERE O aee E 19 was iT 19 SECONDARY MENU L u s dikes uuu uei deber qusc eats tede edu ed 20 SECURE MENU srt beri k e eB e Er Pte e el t d E 25 SPECIFICATIONS areena bred ede tbe aus us buna oet a Rt d dena dae 32 DIAGNOSTIC ERROR MESSAGES nep pde prece gr A ee be Pe or OP E Yon d RR s 33 34 DIMENSIONS eerte run e errem err presi tox Rp Eae S uenisse aen aoa 36 GETTING STARTED 1 Install the control as described on page 4 2 Wire your control following the instructions on page 5 If you are using a two wire transmitter as an input see the drawing and instructions on page 7 Option wiring instructions are on page 6 Option descriptions are on page 4 and specific instructions start on page 15 3 Most controls do not need many if any program changes to work on your process For best results when programming changes are necessary make all the necessary changes in the Secure Menu page 24 before making changes to the Secondary Menu page 18 If error messages occur check the Diagnostic Error Messages on page 33 and 34 for help Take the example of a Model 32A010 that comes from the factory programmed for type J thermocou ples Suppose for this exa
20. N ARROW to change the value in the display Press ENTER to retain the value If StAt Secondary Menu is On the three program status menu items will appear ti Time remaining for current segment ti Total run time for segment SP Target Set Point for segment If StAt Secondary Menu is OFF the Primary menu operates as follows SP1 Set Point 1 Adjust Control Point 1 SP2 Set Point 2 Adjust if equipped Control Point 2 Auto Auto Manual Station Select On or OFF Output operation is automatic normal operation OFF Output is controlled manually See Page 13 for operation of Auto Manual Station Feature If Prog is OFF in the Secondary Menu Prog below will not appear Prog Ramp Soak Programmer Run Hols function Select run or HoLd run Ramp Soak Programmer is in operation HoLd Ramp Soak Programmer is on hold Page 19 SECONDARY MENU Hold UP ARROW amp ENTER Press INDEX to advance to the next menu item Press UP ARROW or DOWN ARROMW to change the value in the display Press ENTER to retain the value If the control is not equipped with alarm or if the alarm functions AL are turned OFF or programmed as event Eunt ALLO and ALHi will not appear ALLo Alarm Low The Low Alarm point is usually set below the Set Point May not appear depend ing on AL setting in Secure Menu ALHi Alarm High The High Alarm Point is usually set above the Set Point May not appear depending on AL setting in Secure Menu
21. ansitory in nature changing set points for a ramp soak sequence for example All 32A Series controls with communications options made before April 2001 are only able to write to the EEPROM Controls manufactured after this date have a menu item in the Secure menu Stor that allows the serial communications to write to RAM Stor no with a special write command that allows the EEPROM to be updated or written directly to EEPROM protocol command 0442 The anti reset windup ArUP must be on to insure no memory is stored The factory default is write to EEPROM Stor YES Page 18 If your computer system will be making frequent changes to the control we strongly recommend that you select the write to RAM parameters Stor no If you are primarily reading from the control there is no need to change the setting Any instruments equipped with any Serial Communications are limited to one million WRITE cycles to the EEPROM through the Serial Communications Port Exceeding this limit will generate FAL TEST error There is no limit to the num ber of times you can READ from this instrument EEPROM Make sure that the software you use does not write too often to the instrument If you have any questions regarding how your software works with the instrument s contact your System Administrator Programmer or Software Supplier MENU SELECTIONS PRIMARY MENU Press INDEX to advance to the next menu item Press UP ARROW or DOW
22. e SP displays are in temperature If the control is pro grammed for some other engineering unit the SP is set in that unit Press INDEX to continue If Alarm is programmed as an event then 1AL will appear If you wish the Alarm contact to function for this segment set 1AL for On If not set for OFF Press INDEX If Alarm is not programmed as an event then 1AL will not appear If 1AL is set to On the Alarm function will be active for the entire period as set in 1ti above Complete setting the segment times 2ti 16ti segment set points 2SP 16SP and event alarm 2AL 16AL if it exists For unneeded or unused segments set the segment times 2ti 16ti to 0 and set the segment set points 2SP 16SP to the same value as the last active set point Event alarms may be set to indi cate end of run as you feel necessary The last menu item for the ramp soak function is PEnd PEnd determines what the control does when the program has ended You may choose to have the program repeat LooP Hold the last set point 16SP revert to the local SP1 or turn the outputs off OoFF It is important to remember that if you want the program to repeat you must allow the process to return to the same condition that existed when the program first started Remember that the ramp function calculates the slope by drawing a line from the beginning PV to the ramp target set point If the PV at the end of the program is different than the PV
23. ect On or OFF OFF The Primary Menu operates as normal On The Primary Menu is altered to have the following items inserted before the SP1 menu item lti time remaining in segment l ti total time in active segment and l SP segment target set point Ramp Soak Time Base Select 1 S or 60 S 18 Ramp Soak time base is in 1 second increments Program time 1ti 16ti is measured in seconds 60 S Ramp Soak time base is in 60 second increments minutes Program time 1ti 16ti is measured in minutes Page 23 The following items repeat in the following order 10 15 1A1 if alarm 1 is programmed as event 21 25 2 1 16ti 165 16 1 To avoid repetition each item will only be described once 1ti Segment Time Select 0 to 9999 units minutes if tbaS is set to 60 S 1SP 1AL PEnd InPC FiLt LPbr LOrE Addr Page 24 seconds if tbaS is set to 1 S Segment Set Point Select 0 to 9999 units minutes if tbaS is set to 60 S seconds if tbaS is set to 1 S Segment Alarm Event Select On or OFF On Alarm is active during segment 1 time 1ti OFF Alarm is inactive during segment 1 time 1ti Program End action Select Hold or OoFF Hold Stay at the Present Set Point 16SP OoFF Turn Off SP1 and SP2 Outputs at the end of the program LooP Repeat program starting at 1ti SP1 Revert to SP1 value Input Correction Select 500 F C or counts This feature allows the input
24. et for a time value For RTD inputs RTD is open or shorted For THERMOCOU PLE inputs thermo couple is open Set point outputs inactive Alarm active To reset use the INDEX and ENTER keys When InPt input fault timer has been set for a time the outputs will be turned off after the set time Setting the time to OFF causes the outputs to remail ac tive however UFL or OFL will still be displayed Correct or replace sensor To reset use the INDEX amp ENTER keys The sensor may be defec tive heater fuse open heater open or the final power output device is bad Set point outputs inactive Alarm active Correct or replace sensor or any element in the control loop that my have failed Correct the prob lem and reset the control by pressing INDEX and ENTER keys or INDEX to LPbr and press ENTER Sensor Rate of Change exceeded the programmed limits set for SEnC Set point outputs inactive Alarm active Check for the cause of the error The value setting may be too slow for the process or the sen sor is intermittent Correct the problem and press INDEX and ENTER to reset Check calibration appears as an alternating message if the instrument calibration nears tolerance edge Set point outputs active Alarm active Remove the instrument for serv ice and or recalibration To reset use the INDEX amp ENTER keys Check calibration appears as an alternating message if the instr
25. function as the second output of the 32A The ordering code determines whether the second output operates as a second set point or alarm When the 32A second output is programmed as Control SP2 appears in the Primary Menu and the appropriate SP2 related menu items appear in the Secondary and Secure Menus When the 32A sec ond output is programmed as ALarm the alarm related menu items appear in the Secondary and Secure Menus If you have a control with a second output and wish to change the function of the second output from ALarm to Control or vice versa use the Factory Default procedure Page 15 FACTORY DEFAULT PROCEDURE If for any reason you wish to restore the factory settings or change the function of the second output between ALarm or Control follow the following procedure eds oo Ic 9 Turn off power to control Turn on power to control While control is performing SELF tESt press and hold the INDEX and ENTER keys The control will display the ROM ID code Press INDEX The control will display FACt dFLt If you wish to just restore factory settings Press ENTER and DOWN ARROW at the same time The control will be reset to the original factory settings If you wish to change the operation of the second output press INDEX Press INDEX to display SP2 Select Cont or AL Cont Uses SP2 menu items for second output AL Uses ALarm menu items for second output Press INDEX to display OPt If your control is equipped with an option p
26. he input range Set point outputs inactive Alarm inactive Correct the SPL or SPH val ues by programming new values This message ap pears if the analog remote set point signal is out of range Set point outputs active Alarm inactive The control will revert to SP1 Correction of the ana log signal allows the control to return to the remote This message ap pears if the Serial Communications has timed out Set point outputs active Alarm active Restore the communications line and switch the LorE to LOC Page 34 This message ap pears if the ambient temperature of the control is out of range or RJC sensor is broken Set point outputs active Alarm active Correct the ambient temper ature conditions Ventilate the area of the cabinet or check for clogged filters If RJC broken return to factor for service Input Ranges Field Selectable Thermocouple Types Type J or L Type K Type T Type E Iron Constantan Chromel Alumel Copper Constantan Chromel Constantan 100 to 1600 200 to 2500 350 to 750 100 to 1800 73 to 871 129 to 1371 212 to 398 73 to 982 Type R Type S Type B Type C PT 1390 PT 10 PT PT 6 RE PT 30 RE W 5 RE W 26 RE 0 to 3200 0 to 3200 75 to 3308 0 to 4208 17 to 1760 17 to 1760 24 to 1820 17 to 2320 Type N Ni Chr Si Ni Si These Input Types can be set for 0 1 display If temperature goes ab
27. ing intermediate soak steps Care must be taken however that the process does actually reach the soak value before the soak time starts If not the next segment will calculate a slope from the starting PV to the target SP Depending on your process requirements this difference may be important Make sure to test any program for desired results before running production material Do not operate Self Tune while a ramp function is operating The ramp function will prevent the Self Tune from operating properly Make sure that all tuning is set up before operating Ramp Soak Page 11 Program Setup All of the programming for the Ramp Soak function is done in the Secondary Menu You may wish to work out your program on paper before going into the programmer menu sequence In the Secondary Menu INDEX to Prog and make sure that Prog is set to OFF INDEX to PSEt and turn On Skip the StAt setting this is discussed later and press INDEX to 1ti The following items repeat in the following order 1ti 1SP 1AL if alarm is programmed as an event 2ti 25 2 16ti 16SP 16AL To avoid repetition each item will only be described once Set 1ti to the amount of time you want for the first ramp This value is in time units determined by the tbAS menu item from 0 to 9999 Press INDEX Set 1SP to the target value desired for the first ramp This value is in actual units just like SP1 If the control is programmed for temperature then th
28. ion is allowed through a RS 485 Option 992 port Wire the communication lines as shown on Page 6 Wiring for the RS 485 is run from control to con trol in a daisy chain fashion with a termination resistor 120 ohms across the transmit and receive ter minals of the last control in the chain Select the control address and communication baud rate with the Addr and bAUd menu items in the Secure Menu THE BAUD RATE AND ADDRESS MENU ITEMS WILL TAKE EFFECT ON THE NEXT POWER UP OF THE CONTROL BE SURE TO POWER CYCLE THE CONTROL BEFORE USING THE NEW BAUD RATE AND ADDRESS In operation you have the option of preventing a write command from the host computer To prevent the host from writing to the control change the LOrE menu item in the Secondary Menu to LOC To allow the host to write commands to the control set LOrE to rE The host does have the ability to change the LOrE state but it is not automatic If your system depends on constant reading or writing to and from the host you may wish to set the No Activity Timer nAt to monitor the addressing of the control When the LOrE is set to rE and the nAt is set to any value other than Off the control will expect to be addressed on a regular basis If the control is not addressed in the time set by the value of nAt then the control will display the error mes sage LOrE To clear the message set LOrE to LOC CHANGING PROGRAMMING FOR SET POINT 2 AND ALARM Either Set Point 2 or the Alarm
29. ions before using these reset keys More than one error could be present Caution is advised since several items are reset at one time Page 8 While in the Primary or Secondary Menu if no key is pressed for a period of 30 seconds the display will return to the HOME position displaying the temperature value While in the Secure Menu if no key is pressed for a period of 60 seconds the display will return to the HOME position displaying the tem perature value Outputs are disabled turned off when the Secure Menu is active Note To move to the Primary Menu quickly from any other menu press the UP ARROW amp ENTER keys followed by pressing the INDEX amp DOWN ARROW keys SECURITY LEVEL SELECTION Four levels of security are provided The display shows the current security level To change security levels change the password value using the UP amp DOWN ARROW keys and pressing the ENTER key Refer to the password table following for the correct value to enter for the security level desired The SECr menu item security level may be viewed or changed at any time regardless of the present secu rity level To set the access level to for example 2 at the SECr menu item press the UP ARROW key until the upper display show the password 1101 Press the ENTER key The display will blink and return with the level value 2 in the upper display The password values shown in the table cannot be altered so retain a copy of these pages for futu
30. is way if power goes off for whatever reason when power resumes the lat est settings are preserved When power is turned on the data is copied from the EEPROM to the RAM to begin operation If EEPROM is such a wonderful thing you might ask why bother with RAM One reason is that RAM is much faster than EEPROM Faster speed gives you better performance in critical control functions Perhaps the most important reason is that EEPROM has a limit to the number of times it can be erased and re written Current technology now sets that limit at about one million erase write cycles In a dynamic control situation it may be necessary to update RAM every few milliseconds EEPROM can not keep up to that pace and even if it could it would be used up in a matter of days If you think about how long it would take a million changes to the control programming through the front key pad you will see that it would take a very long time to get to use up the life of the EEPROM Adding one of the computer communications options e g 992 changes the picture The speed of computer communications is such that hundreds of instructions can be made in less than a minute In such a situation the million erase write cycles could be used up in a couple of months causing the con trol to fail Usually in such a situation the control is under close observation by the host computer It may not be necessary then for the data to be written to the EEPROM as it is tr
31. ise to tighten Maximum torque is 0 424 Nem 3 75 in Ib Do not overtighten The wire should be held snugly in place Wiring for Optional Inputs and Outputs Wire power and outputs as shown on page 5 and 6 Wiring for options is shown below All wiring shown below is Class 2 Shielded twisted pair is required for Option 992 DO NOT RUN SIGNAL WIRING IN THE SAME CONDUIT OR CHASE AS THE POWER WIRING ERRATIC OPERATION OR DAMAGE TO THE CONTROL CIR CUITRY WILL RESULT OPTION Term 5 Term 6 992 Note 1 Note 1 Note 1 Terminal 5 is line A Terminal 6 is line B Last control in chain must have 120 ohms 1 resistor across 5 and 6 Page 6 Wiring for 4 to 20mA Transmitter Inputs Wire power and outputs as shown above Two wire transmitters wire as shown below For three or four wire transmitters follow the wiring instructions provided with your transmitter DO NOT WIRE THE 24 VOLT POWER SUPPLY ACROSS THE INPUT OF THE CON TROL DAMAGE TO THE CONTROL INPUT CIRCUITRY WILL RESULT External Power Supply 24 Vdc Page 7 FRONT PANEL KEY FUNCTIONS Set Point 1 Lamp Process Display Set Point 2 Lamp F Indicator Alarm Lamp C Indicator Manual Indicator Percent Lamp Set Point Display Hold Lamp CONTROLS SERIES 32A The decimal point tlashes when lune is operating Keys are illuminated when pressed Key functions are as follows INDEX Pressing the INDEX key advances the display to the next men
32. mp Soak Program section 3 Features that apply only to Options will be printed in Italics THE HOME DISPLAY The home display is the normal display while the control is operating If no errors or functions are active the HOME display will indicate the Process Variable the temperature pressure flow RH etc that is being measured on the top display and the Set Variable Set Point 1 on the bottom Items that can change the HOME display are the Auto Manual function the Prog function the PctO function and any error message Description of these special displays follow If Auto Manual is enabled the Manual indicator lights and the home display is changed The upper display continues to show the Process Variable PV but the lower display changes to show the per centage of output in tenths of a percent to 99 9 0 0 to 99 9 or 100 if 100 The display digit to the right of the number shows a flashing letter o to indicate that the value displayed is no longer the SV but percent output The SP2 output is indicated by the use of an overline on the letter Access to the SP2 value is done by the INDEX key See Auto Manual Operation on Page 13 for further information If Prog is turned On the HOME display changes the SV display from SP1to the Present Set Variable as calculated by the Ramp Soak Programmer function See Programming and Operation for Ramp Soak Feature for more information If PctO Secondary Menu is turned On the lower di
33. mple you wish to change the input to type K and limit the set point range between 0 and 1000 C First enter the Secure menu as instructed on page 5 Press the INDEX key until the display shows Inp and press the DOWN ARROW until the display shows CA Don t forget to press the ENTER key to retain your setting Next press the INDEX key to display Unit Press the DOWN ARROW until the display shows C Press ENTER Next press the INDEX key until SPL is displayed pass the dPt and InPt selections Press the UP ARROW until the display shows 0 Press ENTER Finally press INDEX key to display SPH Press the DOWN ARROW until the display shows 1000 Press ENTER The necessary program changes are now complete After 60 seconds the display will switch back to the temperature reading If you want to return faster press the UP ARROW and ENTER keys at the same time and then press the DOWN ARROW and INDEX keys again at the same time This will pack out of the menu and immediately display the temperature reading If you want to use Self Tune Auto Manual or the Ramp Soak Programmer features see the special sections on these items Page numbers for these are in the Contents section on the previous page MODEL IDENTIFICATION Model 32A Options Alarm Output 1 Output 2 Programming 1 SSR 5 Current 0 None 3 Relay 0
34. n or OoFF O on Alarm Lamp is ON when alarm contact is closed OoFF Alarm Lamp is OFF when alarm contact is closed Alarm Loop Break Select On or OFF On Loop Break Condition will cause an Alarm Condition OFF Loop Break will not affect the Alarm Condition Addr bAUd nAt Stor Option 992 Serial Communications Control Address Set from 1 to 3FF This number hexadecimal base 16 must match the address number used by the host computer Option 992 Serial Communications Communication Baud Rate Select 300 1200 2400 4800 9600 or 19200 This number must match the baud rate used by the host computer Option 992 Serial Communications No Activity Timer Setfrom OFF or 1 to 99 minutes 1 99 Maximum time between host computer accesses If timer counts to 0 CHEC LorE will be displayed OFF No Activity Timer function is disabled Option 992 Serial Communications Store to EEPROM Select 5 or See additional information on page 18 ES Menu Items changes made through the Serial Communications are stored directly to the EEPROM Menu items changes made through Serial Communications are stored directly in RAM NOTICE When Stor is set to no ArUP must be set to ON to make sure no memory is stored Page 31 SPECIFICATIONS Selectable Inputs Thermocouple RTD DC Voltage or DC Current selectable Input Impedance Thermocouple 3 megohms minimum RTD current 200 Current 10 ohms Voltage
35. n the accumulated Reset Offset value will be cleared to 096 when the process input is not within the Proportional Band OFF When ArUP is OFF the accumulated Reset Offset Value is retained in memory when the process input is not within the Proportional Band Approach Rate Time Select OFF 0 01 to 99 99 minutes The function defines the amount of Rate applied when the input is outside of the Proportional Band The ArtE time and the rtE time are independent and have no effect on each other To increase damping effect and reduce overshoot set the approach rate time for a value greater than the natural rise time of the process natural rise time process value time to set point Fuzzy Logic Intensity Select 0 to 100 0 is OFF disables Fuzzy Logic The function defines the amount of impact Fuzzy Logic will have on the output If Fint is set to 0 Fbnd and Frte below will not appear Fuzzy Logic Error Band Select 0 to 4000 F C or counts Sets the band width of the Fuzzy Logic Set Fbnd equal to PID proportional band Pb1 for best results Will not appear if Fint is OFF FrtE PEA UAL PctO Prog PSEt StAt tbAS Fuzzy Logic Rate of Change Select 0 00 to 99 99 counts second For best initial setting find the count second change of process value near set point 1 with output ON 100 Multiply this value by 3 Set FrtE to this calculated value Will not appear if Fint is OFF The Peak feature stores the highest input the
36. nu HiLo High and Low Alarms Both ALLo and ALHi appear in the Secondary Menu and share the same Alarm Relay output Evnt Alarm is controlled by the Ramp Soak program function See pages 11 13 AL for further information If AL is set to OFF and the control is not equipped with options the Secure Menu ends If AL is set to OFF or the second output is programmed as control and the control is equipped with options pro ceed to Addr If AL is set to Evnt go to ALSt ALt ALrE ALPi ALiH ALSt ALLP ALLb Page 30 Alarm Type Select AbS or dE AbS Absolute Alarm that may be set anywhere within the values of SCAL and SCAH and is independent of SP1 dE Deviation Alarm that may be set as an offset from SP1 As SP1 is changed the Alarm Point will track with SP1 A deviation alarm will also track any active ramp or soak set point Alarm Reset Select OnOF or Hold OnOF Automatic Reset Hold Manual Reset Reset acknowledge by simultaneously pressing the INDEX amp DOWN ARROW keys for 5 seconds Alarm Power Interrupt Select On or OFF On Alarm Power Interrupt is On OFF Alarm Power Interrupt is OFF Alarm Inhibit Select On or OFF On Alarm Inhibit is On Alarm action is suspended until the process value first enters a non alarm condition OFF Alarm Inhibit is OFF Alarm Output State Select CLOS or OPEn CLOS Closes Contacts at Alarm Set Point OPEn Opens Contacts at Alarm Set Point Alarm Lamp Select O o
37. om the rear of the panel slide the mounting collar over the housing Hold the housing with one hand and using the other hand push the collar evenly against the panel until the spring loops are slightly compressed The ratchets will hold the mounting collar and housing in place To remove gently lift the ratchets and slide a piece of heavy paper or mylar sheet under each ratchet a business card works well Slide the collar off of the housing WIRING Do not run thermocouple or other class 2 wiring in the same conduit as power leads Use only the type of thermocouple or RTD probe for which the control has been programmed Maintain separa tion between wiring of sensor auxiliary in or out and other wiring See the Secure Menu for input selection For thermocouple input always use extension leads of the same type designated for your thermo couple For supply connections use No 18 AWG wires rated for at least 75 C Use copper conductors only All line voltage output circuits must have a common disconnect and be connected to the same pole of the disconnect Input wiring for thermocouple current and RTD and output wiring for current DC SSR and 5 VDC is rated CLASS 2 Page 5 Control wiring is as shown The wiring terminals for the 32A are compres sion type To open the wiring terminal turn the screw for that terminal counterclockwise Slide the wire into the terminal space While holding the wire in place turn the screw clockw
38. only for Thermocouple and RTD ranges Scale High Select 100 to 9999 counts above SCAL The total span between SCAL and SCAH must be within 11998 counts Maximum setting range is 1999 to 9999 counts For Current and Voltage inputs this will set the high range end Viewable only for Thermocouple and RTD ranges Set Point Low Select from the lowest input range value to SPH value This will set the minimum SP1 or SP2 value that can be entered The value for SP1 or SP2 will not stop moving when this value is reached Set Point High Select from the highest input range value to SPL value This will set the maximum SP1 or SP2 value that can be entered The value for SP1 or SP2 will not stop moving when this value is reached Set Point 1 Output Select Select OutA or Outb OutA Set Point 1 is routed through Output A Set Point 2 if equipped is routed through Output B Setting is forced to OutA if control is equipped with single output or if second output is programmed as alarm Outb Set Point 1 is routed through Output B Set Point 2 if equipped is routed through Output A Set Point 1 State Select dir or rE dir Direct Action As the input increases the output will increase Most commonly used in cooling processes rE Reverse Action As the input increases the output will decrease Most commonly used in heating processes Page 27 If Out1 set for tP PUL or ProP then S1OL and S1OH following appear If Out1 is set for
39. ove 999 9 or less than 199 9 the display will return the whole degree resolution 100 to 2372 73 to 1300 100 Ohm Platinum 100 Ohm 120 Ohm Nickel 1000 Ohm 0 00385 DIN Platinum 0 00392 0 00628 US Ind Platinum 0 00385 Curve Nist Curve Curve Nist Curve 328 to 1607 328 to 1607 112 to 608 328 to 1607 200 to 875 200 to 875 80 to 320 200 to 875 Process Input Types The 0 to 20 mAdc 4 to 20 mAdc 0 to 10 2 to 10 and 10 to 10 mVdc inputs are fully scal able from a minimum of 100 counts span placed anywhere within the range of 1999 to 9999 Decimal point position is adjustable from zero places 9999 tenths 999 9 hundredth 99 99 or thousands 9 999 Page 35 DIMENSIONS n OOO 44 86 1 786 D00000 22 1 0 870 6 35 0 25 Maximum Panel Thickness ALL DIMs IN MM Kara PANEL CUT 0UT 45 0 6 x 22 2 0 3 1 772 0 02 x 0 874 0 012 Copyright 2011 Dwyer Instruments Inc Printed in U S A 7 11 FR 949 1311 Rev 3 LOVE CONTROLS DIVISION Phone 219 879 8000 DWYER INSTRUMENTS INC www love controls com P O BOX 373 MICHIGAN CITY Fax 219 872 9057 INDIANA 46361 U S A e mail love love controls com
40. puter driven devices The terms RAM random access memory and ROM read only memory are a couple with which you may be familiar RAM is used in computers to run programs and hold data for a short period of time This is the mem ory that is used primarily in PCs RAM is very fast and can be read and written to over and over again ROM is used in computers to hold the permanent programming that allows a PC to start This mem ory is burned in to the chip itself and can not be changed Unlike RAM however this memory is manent While it can not be changed it can not lose its programming when power is turned off There is a third type of memory that is now currently used to combine the characteristics of both RAM and ROM This is known as EEPROM electrically erasable programmable read only memory While the name may be long and somewhat cryptic the EEPROM can be erased and re written many times and yet hold the programmed data even over long periods of time when the power is off This is the type of memory that all Love Controls uses to save the settings your program in your control The reli ability and longevity of the data retention is what allows us to guarantee a 10 year data retention with out power In normal operation the control uses RAM just as any other computerized device Whenever you make a change to one of the parameters in the control the set point for example the new value is writ ten into the EEPROM Th
41. re reference This is the only reference made to password values in this instruction book PASSWORD TABLE Security Level Displayed Value Password Value Menu Status When Viewed to Enter Primary Locked Secondary Locked 1 1110 Secure Locked Primary Unlocked Secondary Locked Secure Locked Primary Unlocked Secondary Unlocked Secure Locked Primary Unlocked Secondary Unlocked Secure Unlocked Page 9 NOTATION CONVENTIONS FOR THE MENUS Because of the number of features available in this control information is included that may not apply to your specific control All usable features are included in this book but may not be used in your process To increase clarity the following conventions are used 1 Certain features Menu Items and functions shown in this book may or may not appear on your control depending on other Menu Item selections At various places in the Menus there are notes iden tifying Menu Items that control or direct other menu items If you are looking for a particular menu item and can t find it check the menu item that is its control for proper setting 2 The symbol is used in two ways It is used inside a group of characters to indicate which set point function SP1 or SP2 is being affected It is also used before a group of characters of a menu item to indicate that there may be more than one selection or value for that menu item This is used for certain repeated items such as in the Ra
42. ress the UP ARROW to display the option number If the number is flashing press ENTER An enabled option does not flash Press INDEX to display ACPt Select YES or no YES Changes are accepted and control re boots no Changes are discarded and control re boots Page 16 ALARM TYPE AND ACTION Caution In any critical application where failure could cause expensive prod uct loss or endanger personal safety a redundant limit controller is required The 32A Series allows Set Point 1 and Set Point 2 is equipped to operate as limit or alarm type out puts This function is available on all outputs except the proportional current output type 5 To enable a set point output to act as an alarm or limit Out1 for SP1 or Out2 for SP2 if equipped should be set for OnOf When Out1 and or Out2 are set to OnOF then the alarm function menu items will appear in the Secure Menu for the selected set point s If the Alarm Programming code in the model number is set to 1 then set point 2 is pre programmed as an alarm If the alarm Programming code in the model number is set to 0 and the last number of the model number is not 0 then the second set point is pre programmed as a cooling output This pro gramming may be changed in the field with the Factory Default procedure When setting SP2 value S2t AbS or the ALLO and ALHi values ALt AbS for an absolute alarm simply set the value at which the alarm is to occur When setting SP2 value
43. s suspended until the process value first enters a non alarm condition OFF Alarm Inhibit is OFF Set Point Lamp Select O on or OoFF O on Lamp ON when Output is ON OoFF Lamp OFF when Output is ON If your control is not equipped with a second output or if the second output is programmed as an alarm then proceed to the alarm section next page S2t S2St Set Point 2 type Select Abs or dE AbS Absolute SP2 SP2 is independent of SP1 and may be set anywhere between the limits of SPL and SPH dE Deviation SP2 SP2 is set as a deviation from SP1 and allows SP2 to retain its relationship with SP1 when SP1 is changed tracking SP2 Set Point 2 State Select dir or rE dir Direct Action As the input increases the output will increase Most commonly used in cooling processes rE Reverse Action As the input increases the output will decrease Most commonly used in heating processes If Out2 is set for tP PUL or ProP then S2OL and S20OH following appear If Out2 is set for then skip to S2rE S20L S20H S2rE S2Pi S2iH S2LP Set Point Output Low Limit Select 0 to 100 but not greater than S2OH This item limits the lowest output value This is useful for adding a bias to the process when needed Factory set to 0 for output codes 1 2 and 3 Factory set to 20 for output code 5 2096 output equals 4 mA output Set Point 1 Output High Limit Select 0 to 100 but not less than S2OL for output codes
44. splay changes to show the active percentage of output as required to maintain SP1 The display is similar to the Auto Manual display above except that the letter indicators do not flash and the output is displayed in whole percentages of output not in tenths of a percent If the control has both SP1 and SP2 the lower display will alternate between the SP1 percent output and the SP2 percent output Error messages are listed on Page 33 and 34 Page 10 PROGRAMMING AND OPERATION FOR RAMP SOAK FEATURE The ramp soak feature offers a great deal of flexibility by allowing changes in the set point to be made over a predetermined period of time Soak dwell times can be programmed and the alarm output relay can be programmed to open or close during any of the segments Theory of Operation The 32A Series controls offer a very simple approach to programming a ramp Rather than requiring the operator to calculate an approach rate usually in degrees per minute the 32A does the calcula tion internally Thus the operator only needs to program the target set point and the time desired to reach that point When the ramp segment is executed by the control it calculates the ramp required to move the process from the starting value current PV to the desired value programmed SP in the time allowed Soaks or dwells are ramp segments where the target set point is the same as the beginning process value This allows for multistage ramps without wast
45. to wander PuL Pulsed Time Proportioning Output Select 1PuL to 7PuL 1PuL Linear and 7PuL most nonlinear Changes output linearity for use in cooling applications or for an extremely fast response processes At the center of the proportional band a pulse value of 1 provides an output of one second on and one second off 5096 output A pulse value of 2 provides an output of one second on and two seconds off 3396 output Output at center of band equals one second 2899 17 seconds off For Current Code 5 outputs only The following menu items apply only if your control is equipped with a second set point last digit of model number is not zero and Alarm Programming code is zero If your control does not have a second set point or if the second output is programmed as Alarm jump to the tunE menu on the following pages Out2 Output selection Select OnOf 2tP 2PuL or ProP ONOF tP A setting of ONOF allows the control to operate as a simple on off mode This setting forces the control to turn off at set point and on at the set point plus the dif ferential SP2d When selected the Out2 OnOF menu item is followed by THHHHSP 2d and the Pb2 selection in the Secondary menu and S2OL and S20H selections in the Secure menu are suppressed SP2d Set Point On Off Differential hysteresis Select 1 to 9999 direct acting or 1 to 9999 reverse acting This value will be neg ative for reverse acting set points and
46. u item May also be used in conjunction with other keys as noted below UP ARROW Increments a value changes a menu item or selects the item to ON The maximum value obtainable is 9999 regardless of decimal point placement DOWN ARROW Decrements a value changes a menu item or selects the item to OFF The minimum value obtainable is 1999 regardless of decimal point placement ENTER Pressing ENTER stores the value or the item changed If not pressed the previously stored value or item will be retained The display will flash once when ENTER is pressed Us 50 UP ARROW amp ENTER Pressing these keys simultaneously brings up the secondary menu starting at the alarm tune or cycle item depending on programming Pressing these keys for 5 seconds will bring up the secure menu INDEX amp DOWN ARROW Pressing these keys simultaneously will allow backing up one menu item or if at the first menu item they will cause the display to return to the primary menu If an alarm con dition has occurred these keys may be used to reset the alarm To reset an alarm press and hold both keys for three seconds INDEX amp ENTER Pressing these keys simultaneously and holding them for 5 seconds allows recov ery from the various error messages The following menu items will be reset ALiH Alarm inhibit OPEn InP Input error message bAd InP Input error message CHEC CAL Check calibration error Correct the problems associated with the above condit
47. ument calibration exceeds specification Set point outputs inactive Alarm active Remove the instrument for serv ice and or recalibration To reset use the INDEX amp ENTER keys Page 33 DISPLAY DIAGNOSTIC ERROR MESSAGES MEANING SP OUTPUTS ACTION REQUIRED No display lighted Display is blank Inst rument is not getting power or the supply volt age is too low Set point outputs inactive Alarm inactive Check that the power supply is on or that the external fuses are good FAIL tESt Fail test appears upon power up if the internal diagnostics detect a fail ure This message may occur during operation if a failure is detected Displays flash Set point outputs inactive Alarm inactive The display alternate between FAIL tESt and one of the following messages FACt dFLt Memory may be corrupted Press the ENTER key and the DOWN ARROW key to start default factory procedure Recheck con troller programming rEt FACt Unrecoverable error return to factory for service CHEC SP1 CHEC SP2 1SP CHEC 16SP This message will appear upon power up if SP1 SP2 SP1 or SP is set outside of the SPL or SPH values Set point outputs inactive Alarm active Correct the SP1 etc or adjust the SPL or SPH val ues by programming new values CHEC SPL or CHEC SPH This message ap pears at power up if SPL or SPH values are pro grammed outside t
48. value to be changed to agree with an external reference or to compensate for sensor error Note InPC is reset to zero when the input type is changed or when decimal position is changed Digital Filter Select OFF 1 to 99 In some cases the time constant of the sensor or noise could cause the display to jump enough to be unreadable A setting of 2 is usually sufficient to provide enough filtering for most cases 2 represents approximately a 1 second time constant When the 0 1 degree resolution is selected this should be increased to 4 If this value is set too high controllability will suffer Loop Break Protection Select OFF 1 to 9999 seconds If during operation the output is minimum 0 or maximum 100 and the input moves less than 5 F 3 C or 5 counts over the time set for LPbr the LOOP bAd message will appear This condition can also be routed to an Alarm Condition if alarms are present and turned On see ALbr in the secure menu The loop break error can be reset by pressing the ENTER key when at the LPbr menu item The INDEX amp ENTER keys may also be used Option 992 Serial Communications Local Remote Status Select LOC or rE LOC The host computer is advised not to send remote commands Any write commands sent to the controls will be rejected rE The host computer is allowed to send write commands If the control is not addressed within the time set in the nAt No Activity Timer see Secure Menu the CHEC LorE
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