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T48-P48 Instruction Manual - Carlton

1. 40050 RS 232 RS485 CONVERTER 5485 5485 5485 RS485 RS422 z 65232 23 A e ELE 268 ELE 95985 358 TS 4 FI 1 2 3 4 5 6 7 8 9101112 12VDC POWER e SUPPLY Note Some equipment Controllers with Second Input Option may require reverse of RS485 is terminal 2 connections RS485 is terminal 1 us COMPUTER S 1 i M 7 RS485 RS485 RS485 SESS Figure 10 Connecting Host Terminal 11 LINEAR DC ANALOG OUTPUT JUMPER SELECTION Main amp Second The Linear Analog DC Output ranges are selectable for either voltage 0 10 V or current 0 4 20 mA The main set of jumpers must correspond with the configuration in Linear Output Range ANAS in the Output Parameter Module 2 OP The optional secondary set of jumpers must correspond with the configuration in Second Linear DC Output Range A2tP in the Second Linear DC Analog Output Module 8 A2 The jumpers are accessible from the rear after removing the controller from the case Dashed
2. 31 Digital Input Filtering and Display Update Rate FLtr 31 Input Sensor Correction Constant SHFt da ath 31 Setpoint Limit Values SPLO amp SPHI 4144444 31 Setpoint Ramp Rate SPrP 4 m a 444444464400 0204 4 32 User Input InPt 144444 4 s oh hom hon hh gt 32 Input Parameter Module 1 In P48 models ee 33 Input Type mc 33 Decimal Point Position dCPt 33 Rounding Increment rnd ST 33 Digital Input Filtering and Display Update Rate FLtr 33 Scaling Points 33 Display Values dSP1 amp dSP2 144444 4 4 4 64 4 4 444444 34 Signal Input Values INP1 amp INP2 144444 4 34 Setpoint Limit Values SPLO amp SPHI 34 Setpoint Ramp Rate SPrP 414444 4 4 34 User Input InPt 144444 4 4 35 Output Parameter Module 2 OP 144444 36 Proportioning Cycle Time CYCt 144444 4 444 4 020004 4 4 m 36 Output Control Action OPAC
3. 46 Second Linear DC Analog Output Module 8 A2 46 Second Linear DC Output Range A2tP 144444 4 44 46 Second Linear DC Output Scaling Points 210 A2HI 46 Factory Service Operations Module 9 FS 144444 4 4 46 MANUAL CONTROL eee ee eee eee 47 ON OFF CONTROL ttt ee 48 AUTO TUNE FOR PID CONTROL n 51 Initiate Auto Tune ee ee 52 Auto Tune Of Heat Cool Systems 52 Auto Tune Of Cascade gt 5 555 5555 4 5 5 52 PID CONTROL 5 es 53 Proportional RE 53 Integral ee 53 Derivative 54 Output Power Offset Manual Reset II 54 PID Adjustments 54 MANUAL TUNING FOR PID CONTROL n n hh III IIIA Ih hh hn 56 REMOTE SETPOINT OPTION III m eee hh human 57 CASCADE CONTROL 57 SERIAL COMMUNICATIONS INTERFACE 4 n nn n nnn 58 RS 485 Serial 5 ee 58
4. 62 Communication Format 62 Response ee 63 Full Field Controller Transmission Byte Format 6 64 Abbreviated Controller Transmission Byte Format 65 Troubleshooting Serial CommunicationS 72222 65 APPLICATION EXAMPLES I III eee eee ene hh hh hr 66 T48 OEM Paint Sprayer Application ee 66 T48 Plastics Extruder Application ccc 67 P48 Water Processing Application 245454 4 141 6 2 02 2 2 4 2 2 n n 68 CHECKS AND CALIBRATION n I I I I e ee 69 Input Check st ee 69 mV Reading Check 748 69 Thermocouple Cold Junction Temperature Check 148 69 RTD Ohms Reading Check T48 TT 69 Voltage Check P48 69 Current Check P48 69 Setpoint Input Check T48 and P48 69 Heater Current Input Check T48 only 69 Error Flag ee 70 Calibration For 48 70 Factory Service Operations Calibration 9 5 70 Millivolt Calibration CAL 70 Thermocouple Cold Junction Calibration CJC 71 RTD Ohms Calibration rtd 71 Main or Second Linear DC Analog Output Calibration 71 Remote Setpoint Calibration tt Rm II 71 Heater Current Inp
5. 4 ooh 36 Output Power Limits OPLO amp OPHI nsnsi nsn n rn 36 Sensor Fail Power Level only rd th tam s 36 Output Power Dampening Filtering Time 5555555555555555555566 pan pos s 36 ON OFF Control Hysteresis CHYS ae cere S SUKUN k 37 Auto Tune Code tcod 37 Main Linear DC Output Range Optional 37 Main Linear DC Output Source ANAS 37 Main Linear DC Update Time 555555555555555555556666 n nz 37 Main Linear DC Output Scaling Points ANLO ANHI Optional 37 Lockouts Parameter Module 3 LC 144444 4 38 Lower Display Lockouts SP dEv UdSP bdSP 38 Protected Mode Lockouts CodE Pld and AL ttt n 0 tt 556 e nn 38 Hidden Mode Lockouts ALrS SPSL trnF and 38 Alarm Parameter Module 4 AL Optional 39 Alarm Action Act1 Act2 DPI 39 Heater Break Alarm n m IIIA A RA e A Hee Rh 39 Alarm Action Figures ss see 40 Alarm Reset rSt1 512 4144444
6. SP 1 2 CHYS 5 SP 1 2 CHYS 01 OFF ON OFF REVERSE SP CHYS CHYS SP 01 OFF OFF DIRECT SP CHYS SP CHYS 01 OFF ON OFF Figure 22 Output 1 O1 ON OFF Control Software Revision V4 0 or Later 48 Figure 23 Output 1 O1 ON OFF Control Software Revision V3 x or Earlier Dual Output For heat and cool systems the heat O1 and cool 02 outputs can be used together in the ON OFF control For this operation set the Cooling Relative Gain GAN2 in Cooling Parameter Module 5 02 to 0 0 This places 2 into ON OFF Control In this mode the ON OFF Control Hysteresis CHYS in Output Parameter Module 2 OP applies to both O1 and 2 The Heat Cool Deadband db 2 in Cooling Parameter Module 5 02 sets the amount of operational deadband or overlap between the outputs For these applications the Control Action OPAC in Output Parameter Module 2 OP is normally set to reverse rEv This sets O1 into reverse heat with 2 always in direct cool Cooling output for the P48 is referred to as the second control output In controllers with operating system software revision lower than 4 0 the ON OFF Control Hysteresis value is not balanced In these controllers the Hysteresis is totally added or subtracted from the setpoint The revision number of the controller s operating system software is show
7. Wait 10 seconds press P Description Comments Calibration For 48 Whenre calibration isrequired generally every two years this procedure should be performed by qualified technicians using appropriate equipment Equipment source accuracy of 0 03 or better is required The procedure consists of applying accurate voltage and current signals Allow a 30 minute warm up period before starting this procedure This procedure may be aborted by disconnecting power to the controller before exiting the configuration mode The existing calibration settings remain in effect Factory Service Operations 9 FS Description Comments Calibrate Instrument Display Parameter Range CodE Enter factory service 48 function code CAL Input calibration yes no Calibration for both voltage and current A1CL Main Linear DC Output yes no Model number dependent calibration Calibrate either 10 V or 20 mA A2CL Second Linear DC yes no Model number dependent Output calibration Calibrate either 10 V or 20 mA n2CL Remote Setpoint yes no Model number dependent Calibration Input Calibration Connect voltage calibration source with an accuracy of 0 196 or better Display Action StP1 Apply 0 0 V StP2 Apply 2 5 V StP3 5 0 V Description Comments Wait 10 seconds press P Wait 10 seconds press P Wait 10 seconds press P Wait 10 seconds press P Wait 10 seconds press P StP4 Appl
8. CONFIGURATION PARAMETER MODE Bottom display Module amp CNFP 1 Input Parameter Module 2 Output Parameter Module 3 LC Lockout Parameter Module 4 AL Alarm Parameter Module 5 02 Cooling Parameter Module 6 5 Serial Communications 7 N2 Second Input Option 8 2 Second Anolog Output 9 5 Factory Service Operations Return to Normal Display D button Enter a Configure Module P button Advance to next parameter Arrow buttons NORMAL DISPLAY In the Normal Display Mode the temperature or scaled process value is displayed in the main top display By successively pressing the D button the parameters listed below can be viewed in the secondary bottom display Each of these parameters can be independently locked out from appearing or from being modified through the Lockout Parameter 3 LC Ifall four displays are locked out the display blanks after pressing the D button To gain access to the next modes press the P button from any parameter To modify values in Output Power for Manual Control or Setpoint use the Up or Down arrows while the parameter is displayed and not locked If locked these parameters can be changed in the Protected Parameter Mode The controller responds to the new values immediately however the change is not committed to permanent memory until 10 seconds after the last key press Normal Display Mode Reference Table Range and Uni
9. 4 4 42 Alarm Standby Delay Stb1 Stb2 Mmmm homm oho momo momo om omo 00 00 W 6 0 n 0 0 hon n n n n n n n 42 Alarm Value AL 1 AL 2 KRAMER wn IP ov ae sep q AUR E TRU E S UNUS 42 Alarm Hysteresis AHYS 42 Cooling Parameters Module 5 02 Optional ccc 43 Cooling Output Cycle Time CYC2 Rosse uie mom onse a i xU elm uec e mm 43 Cooling Relative Gain GAn2 43 Heat Cool Overlap Deadband db 2 I 43 Serial Communications Module 6 SC lt 555 5555555555555 c c c 66 44 Baud Rate bAUd 4144444 44 Character Frame Format ConF 44 Controller Address Number Addr c 44 Abbreviated or Full Transmission 55555555555555555 6 t t t t n nn 44 Print Options PoPt 4144444 4 4 o o o oh 444440404440 o Rh nh nh hor nnm hr 44 Remote Setpoint Parameters Module 7 n2 or 7 rS Optional 45 Remote Setpoint Display Values 45 1 d8P2 45 Remote Setpoint Signal Input Values INP1 and INP2 45 Remote Setpoint Filtering Fltr and bANd 45 Setpoint Transfer Options 45 Heater Current Monitor Module 7 2 7 HC Optional
10. REAR TERMINAL ASSIGNMENTS ALL P48 Models AC DC Analog Dedicated Dedicated 2nd Input Analog Power Main Out 329702 OTF AT o1 Option 2nd Out AC Model DC Model 4 ACK AC C C G 0 4800001 4800011 4810000 4810010 4810002 4810012 4810101 4810111 4810105 4810115 4810107 4810117 P481010A P481011A P4811100 P4811110 P4811102 P4811112 jo 9 9 9 9 9 9 9 10 3 2 4 5 9 10 3 2 4 5 6 8 6 8 6 8 6 8 6 8 6 8 6 8 6 8 6 8 9 oo oo oo o o o o N N J JA C is the Common Terminal Remote Setpoint Input 10 SERIAL CONNECTIONS HOST TERMINAL Six controllers are used to monitor and control parts packaging machines Each controller is programmed for a different address and all are in a plant The controllers are located at each machine in the production area programmed for the same baud rate and parity as the computer ex 9600 ofthe building A communication line is run to an industrial computer located baud parity even An application program is written by the user to send and in the production office receive data from the units using the proper commands RED LION CONTROLS
11. A Attach the RTD to terminals 8 and 10 Install a copper sense wire of the same wire gage as the RTD leads Attach one end of the wire at the probe and the other end to terminal 9 Complete lead wire compensation is obtained This is the preferred method B Attach the RTD to terminals 8 and 10 Install a shorting wire between terminals 9 and 10 as shown in Figure 5 RTD Connection A temperature offset error of 2 5 C ohm of lead resistance exists The error may be compensated by programming a temperature offset 148 Figure 5 Connection Note With extended cable runs sure the lead resistance is less than 15 ohms lead For thermocouple or RTD runs longer than 100 feet convert the signal to a current near the temperature probe Current 20 mA loop signals are less susceptible to noise and signal loss than long thermocouple or RTD runs The RLC ITMA and IRMA DIN rail modules are designed for these applications By converting the temperature signal the P48 can be used in place of a T48 Signal 48 When connecting signal USER INPUT leads be certain that the connections are clean and O tight For voltage signals use terminal 8 for common and 9 terminal 9 signal For current signals use terminal COMM 8 for common and terminal 10 for signal These 0 10 V connections are shown in Figure 6 Multicontroller 0 4 20 mA applications using the same signal source are po
12. when transferring to either operating mode SPrP Setpoint Ramp A low level terminates setpoint ramping and the controller operates at the target setpoint Terminating setpoint ramping is the same as setting the ramp rate to zero SPrP 0 0 A high level enables the programmed setpoint ramp rate 35 ALIS Alarm Reset models with alarms low level resets any active alarm s to their inactive state as long as the user input is low SP2 Setpoint 1 Setpoint 2 Select On models with Second Setpoint a low level selects setpoint 2 A high level selects setpoint 1 SPSL or RSP Local Remote Select On models with Secondary Analog Input a negative transition engages Remote Setpoint operation and a positive transition engages Local Setpoint operation The response ofthe controller to the setpoint transfer is set by the setpoint transfer parameter trnF under 7 n2 module PrNt Print Request On models with Serial Communications a low level transmits the print option selected in the Serial Communications Module 6 SC Ifthe user input is held low after the printing is complete another request is issued Output Parameter Module 2 The controller has parameters that affect how the main controloutput O1 and Main Linear DC output control signal responds to temperature changes and sensor failures Time Proportioning Cycle Time CYCt Theselection of cycle time depends on the time constant of the process an
13. 0 0 Key in display low value Scaling Point 1 Input Signal 0 4 20 mA DC Value Key in Method Signal Input Method 0 00 to 20 00 mA 0 00 to 10 00 V Press D button to select Signal Input method Apply input low value Scaling Point 2 Display Value Key in display high value 22 Display Parameter Range and Units Factory Setting Description Comments InP2 Scaling Point 2 Input Signal 0 4 20 mA DC Value Key in Method Signal Input Method 0 00 to 20 00 mA 0 00 to 10 00 V Press D button to select Signal Input method Apply input low value Setpoint Lower Limit 999 to 9999 0 0 Set low limit below hiqh limit Setpoint Upper Limit 999 to 9999 999 9 Set high limit above low limit Setpoint Ramp Rate 0 to 9999 units minute 0 0 0 0 is off no ramping User Input Model Number Dependent PLOC Program disable ILOC Integral action on off trnF auto manual select SPrP Setpoint ramp on off ALrS Reset alarm output s SP2 Select SP1 SP2 rSP Select Local Remote PrNt Serial block print Low lock Low off Low manual Low end ramp Low reset Low SP2 Low remote Low block print Configure Module 2 Output Parameters 2 OP Display Parameter Range and Units Factory Setting Description Comments Proportioning Cycle Time 0 to
14. 0 17 kgs 80 148 TEMPERATURE CONTROLLER ORDERING INFORMATION Options and Output Boards are factory configured per the part number specified Part numbers without replacement output boards listed must be returned to the factory for output board replacement MODELS WITHOUT RS485 AND LINEAR DC ANALOG OUTPUT DEDICATED DEDICATED A2 ALARM 2 REMOTE HEATER PART NUMBERS REPLACEMENT MAIN CONTROL ALARM 1 SETPOINT CURRENT 01 OUTPUT A1 OUTPUT 18 to 36 VDC 24 85 250 VAC OUTPUT BOARD T4810010 T4810000 RBD48100 NA T4811000 RBD48111 T4811110 T4811100 RBD48111 T4811113 T4811103 RBD48111 T4811114 T4811104 RBD48111 Logic SSR T4820010 T4820000 RBD48200 Logic SSR NA T4821000 RBD48211 Logic SSR T4821110 T4821100 RBD48211 Logic SSR T4821113 T4821103 RBD48211 Logic SSR T4821114 14821104 RBD48211 Logic SSR Logic SSR T4832210 T4832200 This output is programmable as either Control PID or as an Alarm amp These part numbers are equipped with a second setpoint 81 MODELS WITH RS485 OR LINEAR DC ANALOG OUTPUT DEDICATED MAIN CONTROL 01 OUTPUT MAIN CONTROL 01 OR DEDICATED ALARM 1 A1 OUTPUT ALARM 2 A2 OR 02 COOL REMOTE SETPOINT INPUT HEATER MAIN ANALOG CURRENT OUTPUT INPUT SECOND ANALOG OUTPUT PART NUMBERS 18 to 36 VDC 24 VAC 85 to 250 VAC ALARM 1 NA 481011 14810111 14810115 14810116 148101
15. 100 0 P48 Remote setpoint display high value Remote setpoint input scaling point 2 0 00 to 20 00 20 00 Key in input low value or Press D to select Signal Input method Remote setpoint filter time constant 0 to 25 seconds 2 0 off Remote setpoint filter band 0 to 250 S 0 filter always engaged Remote Local setpoint transfer options nor normal Auto Automatic trAC Tracking Auto Bumpless other modes may bump Configure Module 7 Heater Current Parameters 7 HC or 7 n2 Controller returns to configuration access point CnFP NO if heater current option is not installed Display Parameter Range and Units Factory Setting Description Comments Hcur Heater current transformer scaling 0 0 to 999 9 Amps Set scaling equal to primary rating of CT 28 Configure Module 8 Second Linear DC Analog Output 8 A2 Controller returns to Configuration Access Point CnFP NO if second linear DC analog option is not installed Display Parameter Range and Units Factory Setting Description Comments A2tP Second linear DC output range Oto 10 V 0 to 20 mA 4 to 20 mA 4 20 Set Secondary Output jumper to match Second linear DC output low scaling value 999 to 9999 0 T48 0 0 P48 Corresponding temp or process value for low output Second linear DC output high scaling v
16. A remote 0 4 to 20 mA analog input signal can be used to change the setpoint value This input can be scaled over a process range independent of that of the system range In operation the front panel MN indicator illuminates for local setpoint operation and is off for remote setpoint operation In either mode the indicator flashes during Manual Mode Filtering ramp rate velocity limiting and local remote transfer response options can be configured to suit the application Local Remote transfer operations are performed either externally user input or at the keypad If large changes in the remote setpoint signal result in undesirable controller performance the remote setpoint can be velocity limited ramped by the setpoint ramp parameter SPrP Similarly if fluctuation in the remote setpoint signal also results in poor performance the programmable filter can be used to provide a steady setpoint to the controller A unique feature of the filter is the filter band Fluctuations that occur that are less than the filter band value keep the filter engaged while fluctuations outside the filter band disable the filter This action allows the controller to respond rapidly to large changes of the remote setpoint signal PRIMARY CONTROLLER LINEAR DC SETPOINT PRIMARY OUTPUT SETPOINT SECONDARY CONTROLLER CASCADE CONTROL External cascade control involves the use of two controllers one of which has a Remote
17. Display values exceed display range 5 MAIN SIGNAL INPUT displ h tout in Sample Period 100 msec AUXI A ERAY suows bowen Response Time Less than 300 msec typical 400 msec max to within 99 ashing Controller is in manual mode of final valie w step input typical is limited t ON Local Setpoint Remote Setpoint option ys response TS response OFF Remote Setpoint time of probe DV Lower auxiliary display shows deviation error from Failed Sensor Response T48 only process setpoint or shows heater current Main Control Output s Programmable preset output O1 Main control output is active Display 1 Alarm 1 is active for AL1 Option Alarms Upscale drive A2 Alarm 2 is active OR Normal Mode Rejection 40 dB 50 60 Hz Cooling Second output O2 is active improves with increased digital filtering B888 iil 024 1 772 1000 xP DVMN ot a1 a2 49 5 45 uos 5 4 v L 188 _ 0 57 41 4 17 105 9 1 76 44 7 1 772 107000 49 5 9 4 45 0 6 7 0 0 Figure 43 Dimensions 76 Common Mode Rejection Greater than 120 dB DC to 60 Hz RTD TYPE RANGE Protection Input overload 120 VAC max for 15 sec max 6 8 INDICATION ACCURACY 0 3 of Span 1 C Includes NIST conformity cold junction effect and A D conversion errors at 23 C aft
18. Internal malfunction Change resolution to display whole number a Verify reading Check cold junction calibration Check set up parameters Check calibration OPEN IN DISPLAY T48 Probe disconnected Broken or burned out probe Corroded or broken terminations Excessive process temperature 73 Connect probe Connection must remain intact for 3 sec to clear OPEN condition Replace probe Check connections Check process parameters TROUBLESHOOTING Cont d PROBLEMS POSSIBLE CAUSE REMEDIES SENS IN DISPLAY P48 Input exceeds range of controller Incorrect input wiring Defective transmitter Internal malfunction Check input signal level Check input wiring Check signal calibration Check calibration OLOL IN UPPER DISPLAY Input exceeds range of controller Temperature exceeds range of input probe Excessive positive probe temperature Loss of set up parameters Check sensor or input signal level Change to input sensor with a higher temperature range Reduce temperature Check set up parameters ULUL IN UPPER DISPLAY Input is below range of controller Temperature below range of input probe Excessive negative probe temperature Loss of set up parameters Check sensor or input signal level Change to input sensor with a lower bottom range Increase tem
19. SFCRM 40030 50000 82 48 PROCESS CONTROLLER ORDERING INFORMATION Options and Output Boards are factory configured per the part number specified Part numbers without replacement output boards listed must be returned to the factory for output board replacement All part numbers are software version V4 0 or greater Models with Remote Setpoint Input RS485 Main Analog Output or Second Analog Output include a second setpoint DEDICATED MAIN SECOND PART NUMBERS MAIN CONTROL DEDICATED A2 ALARM 2 REMOTE MAIN CONTROL 010RA1 ALARM 1 A2 02 SETPOINT ANALOG 18 to 36 VDC 85 to 250 OUTPUT BOARD 1 OUTPUT SECOND INPUT OUTPUT Q i 24 VAC VAC P4800011 P4800001 N A P4810010 P4810000 RBD48100 P4810111 P4810101 P4810115 P4810105 P4810117 P4810107 P481011A P481010A P4811110 P4811100 RBD48111 P4811112 P4811102 RBD48111 This output is programmable as either Control PID or as an Alarm These part numbers are jumper and program selectable for either a current or voltage Linear DC output These part numbers are equipped with a second setpoint P48 ACCESSORIES DESCRIPTION PART NUMBERS PC Configuration Software for Windows 98 ME 2000 and XP for RS485 models SFCRM RS232 RS485 Serial Converter Module ICM40030 Three Way Isolated RS232 RS485 Serial Converter ICM50000 83 LIM
20. The Remote Setpoint input is also controlled by the setpoint ramp feature In situations where the remote setpoint must be rate controlled this parameter can be used to slowly increment or decrement the signal to its final value The target value not the instantaneous ramp value is displayed Setpoint ramp indication is disabled during remote setpoint ramping Note Depending on the ramp rate relative to the process dynamics the actual scaled process value may not track the ramping setpoint value User Input InPt The user input may be programmed to perform a variety of controller functions The input must be in its active state for 120 msec minimum to perform the function A function is performed when the User Input Terminal 6 is pulled low to common Terminal 8 Note Do not tie the commons of multiple units to a single switch Use either a multiple pole switch for ganged operation or a single switch for each unit Note Low Level is switch closed High Level is switch open PLOC Program Lock A low level enables the program disable function which places the unit in the Protected Parameter Mode ILOC Integral Action Lock A low level disables the integral action of the PID computation A high level resumes the integral action trnF Auto Manual Transfer A negative transition places the unit in the manual user mode and a positive transition places the unit in the automatic operating mode The output is bumpless
21. The parameter settings can be changed by the front panel buttons or by serial communications using PC Windows based SFCRM software The controller must have optional RS485 communications An RS485 to RS232 converter is available from Red Lion Controls for RS232 interfaces For serial communications set up it is important to check serial wiring and verify or change Serial Parameter Module 6 SC parameters bAUd ConF s and Addr See Serial Communications Interface page 58 for more details CONTROL START UP After verifying proper programming and system start up a controlling method needs to be configured For Manual Control or open loop where the control does not work from the setpoint or process feedback see Manual Control page 47 For On Off Control set Proportional Band Prop to 0 0 and see On Off Control page 48 The controller comes with factory setting for PID Control However for optimum PID Control several options exist for configuring Proportional Band Integral Time and Derivative Time parameters for specific applications a Use controller s built in Auto Tune feature See Auto Tune For PID Control page 51 b Use a manual tuning technique See Manual Tuning For PID Control page 56 c Use a third party tuning software package d Use values based on controlloop experience calculated values or values from a similar process or previous controller VALID CONTROL MODE COMBINATIONS ON OFF PID and Manual Control can b
22. request is issued Input Parameter Module 1 48 models The controller has several input set up parameters that must be programmed prior to setting any other controller parameters Input Type tYPE Selectthesignalinputtype Voltage VOLt or Current Curr The signal input terminal for voltage is 9 and for current is 10 Common 15 8 Decimal Point Position dCPt Select the desired decimal point position for the scaled display The selected decimal point position appears in the following parameters rnd dSP1 dSP2 SPLO SPHI SP AL1 AL2 db 2 AHYS and CHYS 0 0 0 0 00 0 000 Rounding Increment rnd Rounding values other than 1 causes the scaled number to round to the nearest rounding increment selected i e rounding of 5 causes 1227 to round to 120 and 123 to round to 125 Ifthe process is inherently jittery the display value may be rounded to a higher value than 1 Ifthe range of the process exceeds the required resolution ex 0 1000 PSI but only 10 PSI resolution required a rounding increment of 10 will effectively make the display more stable This programming step is usually used in conjunction with programmable digital filtering to help stabilize display readings If display stability appears to be a problem and the sacrifice in display resolution is unacceptable program higher levels of digital filtering or increase the level of process dampening Roundi
23. see Troubleshooting page 73 before attempting this procedure If the controller is suspected of reading incorrectly the instrument may be checked for indication accuracy without disturbing the factory calibration The following procedures may be used for this purpose Note Allow 1 2 hour warm up before checking these parameters MAIN INPUT CHECK mV Reading Check T48 1 Connect a DC mV source with an accuracy of 0 03 or better to terminal 8 amp 9 2 Configure Input Parameters Module for linear mV lin input under tYPE 3 Compare the controller read out to the standard at various points over the range 5 00 mV to 56 00 mV The tolerance is 0 15 of reading 1 LSD 4 Calibrate the controller if the readings are out of tolerance Thermocouple Cold Junction Temperature Check T48 1 Connect a thermocouple probe of known accuracy Types T E J K N only to controller Select the probe used in Configure Module 1 2 Connect a reference temperature probe to measuring end of thermocouple to monitor temperature Allow sufficient time for temperatures to equalize 3 Compare controller display with reference temperature probe The controller display should equal the calibrated probe temperature Tolerance is 1 C 4 Calibrate the cold junction temperature if out of tolerance RTD Ohms Reading Check T48 1 Connect RTD simulator with an accuracy of 0 1 ohm or better capable of operating with less tha
24. yes enables the option to be printed when a print function occurs INP Print Input Process Value SEt Print Setpoint Value OPr Print Output Power Value Pbd Print Proportional Band Value INt Print Integral Time Value dEr Print Derivative Time Value AL1 Print Alarm 1 Value AL2 Print Alarm 2 Value dEv Print Deviation From Setpoint Value OFP Print Output Power Offset Value Print Rate Crg Print Relative Gain Value Cdb Print Deadband Value OSt Print Output Status rSP Print Remote Setpoint Reading HCr Print Heater Current Reading Remote Setpoint Parameters Module 7 2 7 rS Optional Configuration of the Remote Setpoint involves scaling the input to the desired setpoint range selecting filter characteristics and setting remote local setpoint transfer response Remote Setpoint Display Values dSP1 and dSP2 Key in the display value for Scaling Point 1 and Scaling Point 2 dSP1 999 to 9999 0 dSP2 999 to 9999 Ex 500 Remote Setpoint Signal Input Values INP1 and INP2 The signal input value can either be keyed in via the front panel buttons or an input signal can be applied to the appropriate signal input terminals Initially the unit is in the key in method Key in Method Key in the display value for Scaling Point 1 and Scaling Point 2 INP1 0 00 to 20 00 4 00 mA DC INP2 0 00 to 20 00 Ex 20 00 mA DC Signal Input Method To change to the apply signal input method p
25. 13 Button 7777 13 INITIAL CONFIGURATION START UP m e I I A A hh hh hn 14 Controller Power up w w q a w w e w e a wu s 4 k 4 14 Parameter Configuration Overview a x E 14 Parameter Configuration Basic Start up x e a w E s h s s s 4 s 14 Parameter Configuration for Serial Start up n mee teia detid dani t nd n n 14 Control Start up Du 14 Valid Control Mode Combinations 15 Front Panel Programming Chart For 48 amp P48 5 16 NORMAL DISPLAY MODE ttt ttt HH hh RR 9 II Imi 17 FRONT PANEL PROGRAM DISABLE n A hh hh 3 tnn 17 UNPROTECTED PARAMETER MODE tt KK AH Rn nn 18 PROTECTED PARAMETER MODE he mI Rh hh hh rh man 19 HIDDEN FUNCTION MODE e nme II IRI hh hh hh hh rar 20 CONFIGURATION PARAMETER n e f e HH A nnn 20 REFERENCE TABLES CONFIGURATION PARAMETER MODULES 21 Configure Module 1 Input Parameters 1 IN 48 5 55555 55 t gt 21 Configu
26. 250 seconds 2 0 turns O1 off Set to zero for Linear DC output control Not used for ON OFF Control Output Control Action drct cooling rEv heating rEv For both PID amp ON OFF control Output Power Lower Limit Not used in Manual Control 0 to 100 O1 0 Set OPLO lt OPHI 100 to 100 01802 100 Negative is only valid for O2 cooling control Output Power Upper Limit Not used in Manual Control 0 to 100 O1 100 Set OPHI gt OPLO 100 to 100 01802 100 is only valid for O2 cooling control Sensor Fail Power Level Not used in Manual Control 0 to 100 1 0 100 to 100 01802 0 Select a level to safely control the process in the event of input sensor failure T48 only Output Power Dampening filtering Time 0 to 250 seconds 3 T48 1 P48 0 off no dampening Set in range of 1 50 to 1 10 of integral time Adjusted by Auto Tune 23 Display Parameter Range and Units Factory Setting Description Comments CHYS Control Hysteresis 1 to 250 2 T48 0 2 P48 For O1 ON OFF Control Change to Factory Setting prior to Auto Tune Auto tune Dampening Code 0102 0 0 fastest response 2 slowest response Main Linear DC Output Range 0 to 10 V 0 to 20 mA 4 to 20 mA 4 to 20 mA Set linear output range jumper t
27. A SHFt value of 7 F corrects the controller indication to match the reference Setpoint Limit Values SPLO amp SPHI The controller has programmable high and low setpoint limit values to restrict the setting range of the setpoint Set the limit values so that the temperature setpoint value cannot be set outside the safe operating area of the process SPLO SPHI 999 to 9999 999 to 9999 Setpoint Ramp Rate SPrP The setpoint can be programmed to ramp independent of the controller s display resolution The setpoint ramp feature can reduce thermal shock to the process reduce temperature overshoot on start up or setpoint changes or ramp the process at a controlled rate SPrP 0 0 to 999 9 degrees minute A ramp value of zero disables setpoint ramping allowing the controller to stabilize as fast as possible to the new setpoint If the user input is programmed for setpoint ramp it affects the enabling and disabling of setpoint ramping Setpoint ramping is initiated on power up or when the setpoint value is changed Active setpoint ramping is indicated by the left most decimal point flashing in the main display SETPOINT 1 500 TERMINATED INITIAL 200 RAMP INITIATED TIME SETPOINT CHANGED l 10 MINUTES Figure 13 Setpoint Ramp Rate Once the ramping setpoint reaches the target setpoint the setpoint ramp rate disengages until the setpoint is changed again If the
28. AFTER an accurate mV calibration Model number dependent Calibrate either 10 V or 20 mA Range Model number dependent Calibrate either 10 V or 20 mA Range Model number dependent Enter function code Millivolt Calibration Thermocouple cold junction temperature calibration RTD Resistance Calibration Main Linear DC Output Calibration yes no Second Linear DC Output Calibration yes no Remote Setpoint or Heater Current Input Calibration yes no Millivolt Calibration CAL Connect precision millivolt source with an accuracy of 0 03 to terminals 8 and 9 Cold Junction or RTD Ohms calibration MUST be performed after millivolt calibration Action Apply 0 0 mV Apply 14 0 mV Apply 28 0 mV Apply 42 0 mV Apply 56 0 mV Display StP1 StP2 StP3 StP4 StP5 Description Comments Wait 10 seconds press P Wait 10 seconds press P Wait 10 seconds press P Wait 10 seconds press P Wait 10 seconds press P Cold Junction Calibration This procedure must be performed AFTER an accurate mV calibration Main or Second Linear DC Analog Output Calibration 1 Set the Linear DC Output jumper for the range to be calibrated See Linear DC Analog Output Jumper Selection page 12 2 Connect a meter with an accuracy of 0 05 or better to the output 3 For each step use the controller arrow keys to adjust the external meter
29. Amps or 0 0 to 100 0 Input Resistance 5 Accuracy At 25 C range 0 5 of full scale 1 2 LSD 5 to 100 of range Over 0 to 50 C range 1 0 of full scale 1 2 LSD 5 to 100 of range Frequency 50 to 400 Hz Alarm Mode Dual acting heater element fail detect and control device fail detect Overange 105 Capacity Overload 200 mA Continuous 18 SERIAL COMMUNICATIONS optional Type RS485 multipoint balanced interface Baud Rate 300 to 9600 Data Format 701 7 1 7N2 8N1 Node Address 0 99 max of 32 units per line Transmit Delay 2 100 msec or 100 200 msec Data Encoding ASCII Isolation w r t Main Input Common 500 Vrms for 1 min 50 V working Not isolated w r t Remote Setpoint or Heater Current inputs or Analog Output common Note RS485 and the Analog Output commons are not internally isolated within the controller The terminating equipment of these outputs must not share the same common i e earth ground 19 ISOLATION BREAKDOWN RATINGS AC line with respect to all Inputs and outputs 250 V working 2300 V for 1 minute Main input with respect to Analog Outputs Remote Setpoint Input Heater Current Input 50 V working 2300 V for 1 minute All other inputs and outputs with respect to relay contacts 2000 VAC Not isolated between Analog Outputs Remote Setpoint and Heater Current commons 20 CERTIFICATIONS AND COMPLIANCES SAFETY UL Recognized Component File E156876 UL873
30. CSA 22 2 No 24 Recognized to U S and Canadian requirements under the Component Recognition Program of Underwriters Laboratories Inc Type 4X Enclosure rating Face only 01 50 IECEE CB Scheme Test Certificate UL1369 156876 USA CB Scheme Test Report 96ME50224 040396 T48 only Issued by Underwriters Laboratories Inc IEC 61010 1 EN 61010 1 Safety requirements for electrical equipment for measurement control and laboratory use Part 1 IP65 Enclosure rating Face only IEC 529 ELECTROMAGNETIC COMPATIBILITY Immunity to EN 50082 2 Electrostatic discharge EN 61000 4 2 Level 2 4 kV contact Level 3 8 kV air 61000 4 3 Level 3 10 80 MHz 1 GHz EN 61000 4 4 Level 4 2 kV I O Level 3 2 kV power 61000 4 6 Level 3 10 V rms 2 150 KHz 80 MHz Power frequency magnetic fields EN 61000 4 8 Level 4 30 A m Simulation of cordless telephones ENV 50204 Level 3 10 V m 900 MHz 5 MHz 200 Hz 50 duty cycle Electromagnetic RF fields Fast transients burst RF conducted interference Emissions to EN 50081 2 RF interference EN 55011 Enclosure class A Power mains class A Notes 1 No loss of performance during EMI disturbance at 10 V m Unit is panel mounted in a metal enclosure Buckeye SM7013 0 or equivalent that provides at least 20 dB shielding effectiveness Metal panel is connected to earth ground Power Line and I O cables routed in metal conduit connected to earth ground 2 Self recoverable loss of pe
31. CnFP in the Unprotected Parameter Mode While in this mode the various Configuration Modules can be displayed by pressing the Up or Down buttons The process value after initial setup will be displayed in the main top display The Configuration Module will appear alternating with CnFP in the secondary bottom display To access a Configuration Module press the P button when the desired Configuration Module is displayed The parameters of that Configuration Module can be accessed by pressing the P button The module s parameters are listed in the appropriate Configuration Module table in this section with configuration parameter explanations beginning on page 31 To modify ranges and units use the Up or Down arrows while the parameter is displayed The controller responds to the new values after the P button is pressed however the change is not committed to permanent memory until the controller is returned to the Normal Display Mode If power loss occurred before returning to the Normal Display Mode the new values must be entered again Whenever the D button is pressed End will momentarily appear and the controller will return to the Normal Display Mode At the end of each module the controller will go to CnFP no Pressing the Up or Down arrows will continue in Configuration Parameter Mode and pressing the P will return to the Normal Display Mode Unless specified the parameters ranges units and factory settings are the same for T48
32. DISPLAY MODE Annunciotor indicates parameter Bottom display Parameter Value SETPOINT POWER DEVIATION HEATER CURRENT F or C or No Display Advance to next porameter D button Advance to next mode menu P button Modify parameter Arrow buttons Parameters can be locked out in 3 UNPROTECTED PARAMETER MODE Bottom display Parameter Values ProP Proportional Band 0 0 On Off Intt Integral Time if ProPz 0 0 dErt Derivative Time if 0 0 AL 1 Alarm 1 Value AL 2 Alorm 2 Volue Modify parameter Arrow buttons Enter change Advance to next P button Return to Normal Display D button In special lock out these ore accessible SP Setpoint OPOF Output Power Offset OP Output Power CNFP Configuration Access Point Continue to Configuration UP button Return to Normol Disploy D or P button See selected Configure Module 16 Must enoble these parometers in LC first then hold P for 3 seconds HIDDEN FUNCTION Bottom disploy Porometer amp Ronges SPSL Select Remote SP1 SP2 Setpoint trnF Transfer Operation Auto User Invoke Concel Auto Tune ALrS Reset Alorm Outputs Modify porometer Arrow buttons Enter chonge Advonce to next P button Return to Normol Disploy D button
33. OPHI 100 to 100 36 With Alarm 2 selected for cooling the Lower Limit can be set to less than 0 to limit maximum cooling or set to greater than 0 to limit minimum heating Set the High Limit to less than 0 to limit minimum cooling or greater than 0 to limit maximum heating When controlling power in the manual control mode the output power limits do not take effect Sensor Fail Power Level OPFL 748 only Ifa failed sensor is detected the control output s default to a preset power output OPFL 0 Ol output full off to 100 O1 output full If Alarm 2 is selected for cooling the range is extended from OPFL 100 to 100 At 0 both outputs off at 100 O1 15 on and O2 is off and at 100 O2 is onand O1 is off The alarm outputs are up scale drive 9999 with an open sensor and down scale drive 9999 with a shorted sensor RTD only independent of this setting Manual Control overrides OPFL Output Power Dampening Filtering Time OPdP The output power calculated by the PID controller can be dampened filtered to reduce the controller output activity Those processes with high gain and or derivative times or those processes with a relatively high noise content can benefit from the dampening action OPdP 0 to 250 seconds The dampening parameter is expressed as a time constant in seconds Increasing the value increases the dampening or filtering effect A value of zero disables output
34. Revision V4 0 or Later 50 Figure 27 O1 O2 ON OFF Control Software Revisions V3 x or Earlier AUTO TUNE FOR PID CONTROL Auto Tune is a user initiated function in which the controller automatically determines the PID settings based upon the process characteristics During Auto Tune the controller temporarily causes the system to oscillate by cycling the output power from 0 to 100 The nature of these oscillations determines the settings of the controller s parameters INPUT 1 5 TYPICAL RESPONSE CURVES WITH 1 AUTOTUNE CODES 0 TO 2 TIME Figure 28 Auto Tune Code Note If the induced oscillations caused by Auto Tune can cause system problems or are otherwise unacceptable the Manual Tuning Procedure can be used as a tuning alternative Prior to initiating Auto Tune it is essential that the controller be configured to the application In particular Control Hysteresis CHYS and Auto Tune code tcod must be set in the Output Parameters section Auto Tune requires the hysteresis setting to be above the process noise floor generally 2 5 degrees or 1 2 of range is adequate For most applications the control hysteresis should be set at 2 factory setting The Auto Tune code may be set to yield the response characteristics shown in Figure 28 51 Auto Tune Code A code setting of zero gives the fastest response with possible overshoot and a code of two gives the slowest response wit
35. Setpoint Input The outer loop controller Primary controller directs the setpoint of the inner loop controller secondary controller through the linear DC output The secondary controller has a Remote Setpoint option in order to receive the directed setpoint See Figure 35 Cascade Control for more details Note The Remote Setpoint of the secondary controller must be scaled prior to tuning the controllers Normally the Remote Setpoint is scaled to equal the actual process range of the secondary Scaled in this way the primary controller can direct the setpoint of the secondary controller over its operating range Normally the secondary controller is a faster control loop It is able to respond quickly to disturbances before they affect the primary loop Therefore the control quality of the primary loop under cascade control is superior to that of a single loop controller SECONDARY PRIMARY INPUT PROCESS PROCESS SECONDARY OUTPUT PRIMARY OUTPUT Figure 35 Cascade Control 57 SERIAL COMMUNICATIONS INTERFACE RS 485 Serial Communications The optional RS 485 serial communication interface provides two way communication between the controller and other compatible equipment such as a printer PLC HMI or a host computer In multipoint applications each controller can be configured with a unique node address ranging from 0 99 Through this serial interface data from the controller ca
36. Suppression Cores for signal and control cables Fair Rite 0443167251 FCORO0000 TDK ZCAT3035 1330A Steward 28B2029 0A0 Line Filters for input power cables Schaffner FN610 1 07 RLC LFIL0000 Schaffner FN670 1 8 07 Corcom 1VR3 Note Reference manufacturer s instructions when installing a line filter 6 Long cable runs are more susceptible to EMI pickup than short cable runs Therefore keep cable runs as short as possible 7 Switching of inductive loads produces high EMI Use of snubbers across inductive loads suppresses EMI Snubbers SNUB0000 WIRING CONNECTIONS After the unit has been mechanically mounted it is ready to be wired All wiring connections are made to the rear screw terminals When wiring the unit use the numbers on the label and those embossed on the back of the case to identify the position number with the proper function All conductors should meet voltage and current ratings for each terminal Also cabling should conform to appropriate standards of good installation local codes and regulations It is recommended that power supplied to the unit AC or DC be protected by a fuse or circuit breaker Strip the wire leaving approximately 1 4 6 mm bare wire exposed stranded wires should be tinned with solder Insert the wire under the clamping washer and tighten the screw until the wire is clamped tightly Caution Unused terminals are NOT to be used as tie points Damage to the con
37. and holding the P button for three seconds The parameters can be set for LOC Lockout Prevents the parameter from appearing in the hidden mode Allows operator to perform the selected hidden mode function ENbL Enable The functions available in the hidden mode are accessible independent of the status of program disable ALrS Reset override the alarm output s SPSL SP1 SP2 Remote setpoint selection trnF Select Automatic or Manual operation tUNE Invoke or cancel Auto Tune Model Number Dependent Alarm Parameter Module 4 AL Optional The controller may be equipped with one or two optional alarms On some models alarm output 1 is the same output as main control O1 In this case the output is either programmed for the main output control function O1 or as an alarm function A1 This is set by alarm 1 action parameter Act1 If heat is selected the remaining Alarm parameters do not appear To enable the cooling output of the controller select CooL for Alarm 2 action Act2 The controller then utilizes the alarm 2 output as the cooling output 2 Front panel annunciator A2 illuminates whenever the cooling output is on See Cooling Output Module 5 02 page 43 for configuration of the cooling output If cooling is selected the remaining Alarm 2 parameters do not appear Alarm Action Act1 Act2 Note When deviation low acting with positive alarm value d LO deviation high acting
38. as these may have an effect on the PID constant determination The controller additionally sets the Cooling Relative Gain parameter GAN2 for heat cool systems Some water cooled processes exhibit an extreme non linear gain characteristic That is the process cooling gain starts very high and flattens out deeper into the cooling region This effect may result in regular oscillations at setpoint as the controller applies heat to counteract the effect These processes may benefit from a lower cooling fan setting and or reduced water flow in the jacket or manifold The process heat and cool gains should be balanced as much as possible and the controller gains adjusted to the process Auto Tune Of Cascade Control The following procedure may be used to tune cascaded controllers 1 Place the Secondary controller into Local Setpoint mode and Manual USEr mode of operation 2 Adjust output power level of the secondary until primary variable is close to primary setpoint 5 of range Key in secondary setpoint value equal to secondary process value Auto Tune the secondary controller while in Local Setpoint mode Place the secondary controller into Remote Setpoint mode and Automatic Auto mode of operation 6 Auto Tune the primary controller while the primary is in Automatic mode of operation 7 Initial tuning of system is complete After the process has stabilized the primary and secondary may be re tuned in Automatic mode of operation Norm
39. automatically returns to the Normal Display Mode if no action is taken Unprotected Parameter Mode Reference Table Display Parameter Range and Units Factory Setting Description Comments Local Setpoint SP1 or SP2 999 to 9999 0 T48 0 0 P48 Range limited by SPLO amp SPHI User Input or Hidden Function Mode selects SP1 or SP2 Output Power Offset 99 9 to 100 096 0 0 Appears only if Intt 0 and unit is in Automatic Control Output Power 99 9 to 100 096 0 0 Appears only if unit is in Manual Control This parameter is not limited to output power limits OPLO amp OPHI Proportional Band 0 0 to 999 9 of selected input range 4 0 T48 100 0 P48 0 0 is ON OFF control If using ON OFF set control hysteresis appropriately Integral Time 0 to 9999 sec 120 T48 40 48 0 is off This parameter does not appear if ProP 0 0 Derivative Time 0 to 9999 sec 30 T48 4 P48 0 is off This parameter does not appear if ProP 0 0 Alarm 1 Value 999 to 9999 0 T48 0 0 P48 This parameter does not appear if configured for heat Alarm 2 Value 999 to 9999 0 T48 0 0 P48 This parameter does not appear if configured for cool Configuration Access Point NO Up Arrow Return to Normal Display Mode Enter Configuration modules Returns to Normal Display Mode Mode
40. display board connector is completely engaged and bezel latches are fully seated onto the boards C AL2 02 RELAY AL1 OUTPUT BOARD 01 ES s J 3 k AL2 02 LOGIC SSR DRIVE ALT OUTPUT BOARD 01 Figure 41 Output 5 DISPLAY BOARD CONNECTOR BEZEL DISPLAY BOARD ASSEMBLY SECOND INPUT RS485 BOARD OUTPUT BOARD OUTPUT BOARD CONNECTOR MODEL NUMBER DEPENDENT Figure 42 Output Board Replacement 75 SPECIFICATIONS AND DIMENSIONS 1 DISPLAY Dual 4 digit 2 POWER Upper Process Display 0 4 10 2 mm high red LED AC Versions 85 VAC min to 250 VAC max 50 to 60 Hz 8 VA max Lower Auxiliary Display 0 3 7 6 mm high green LED DC Versions Display Messages DC Power 18 to 36 VDC 7 W OLOL Measurement exceeds input range AC Power 24 VAC 10 50 to 60 Hz 9 VA ULUL Measurement exceeds input range 3 CONTROLS Four front panel push buttons for modification and setup of OPEN Open sensor is detected T48 only controller functions and one external user input for parameter lockout or SHrt Shorted sensor is detected RTD only other functions SENS Measurement exceeds controller limits P48 only 4 MEMORY Nonvolatile retains all programmable parameters Display values exceed display range and values 5
41. exist Calibration For T48 When re calibration is required generally every two years this procedure should be performed by qualified technicians using appropriate equipment Equipment source accuracy of 0 03 or better is required The procedure consists of applying accurate mV signals setting the thermocouple cold junction temperature and applying precision resistance among others Allow a 30 minute warm up period before starting this procedure Do not use thermocouple wire for the Millivolt or RTD ohms Calibration This procedure may be aborted by disconnecting power to the controller before exiting the configuration mode The existing calibration settings remain in affect Note After completing any of the calibration sequences the controller defaults the input sensor type to thermocouple type J tc j Be sure to set input sensor for proper type Note The controller must be restored to normal display mode before any data is stored 70 Factory Service Operations Calibration 9 FS Parameter Display CodE CAL Description Comments Calibrate instrument Calibration required for both RTD and TC input If this procedure is performed the cold junction temp or RTD ohms calibration procedures in turn must be completed Not required if only using RTD input This procedure can only be performed AFTER an accurate mV calibration Not required if only using TC input This procedure can only be performed
42. from 100 to 0 power Negative percent power is positive cooling O2 percent power To allow front panel switching between control modes the Transfer Parameter trnF must be enabled Enbl in Lockout Module 3 LC The user can then select Manual Control from the Hidden Function Mode using Transfer Parameter trnF The percent output power is then adjusted with the Up and Down arrow buttons in the Normal Display Mode with the P and MN annunciators illuminated In Time Proportional output control relay logic or triac the percent output power is converted into output on time using Time Proportioning Cycle Time CYCt value in Output Parameter Module 2 OP For example with 4 cycle time and 75 power the output will be on 4 x 75 for 3 seconds and off for 1 second In Linear DC output control 0 10 VDC or 0 4 20 mA the percent output power is converted into a linear value per the Linear output low scaling value AnLO and Linear output high scaling value AnHI in Output Parameter Module 2 OP For example with 0 VDC scaled 0 096 to 10 VDC scaled 100 and 75 power the linear DC output will be 7 5 VDC When transferring the controller mode from or to Automatic Control the controlling outputs remain constant exercising true bumpless transfer When transferring from Manual to Automatic the power initially remains steady but integral actions corrects if necessary the closed loop power demand at a rate proportional to the Int
43. gt lt Byte2 Byte4 Integral Derivative Cooling Remote Heater Time Time Deadband Setpoint Current gt ko o Joo rn m O m p ko OWN n IS gt gt gt x gt x gt x gt gt lt gt lt P lt gt gt lt gt x gt 61 Unique Register Explanations Setpoint Ramp Using Automatic Setpoint Ramping Register K The controller s Setpoint Ramp parameter provides a controlled ramp when the setpoint value is changed The Setpoint Ramp value can be changed by using VK command When the setpoint value is changed the controller begins to ramp from the existing value to the new target setpoint at a rate set by this register A value of zero in the Setpoint Ramp register disables ramping During the controlled ramp phase the Integral Action is automatically disabled This tends to reduce overshoot due to excessive integral build up The Integral Action automatically resumes at the end of the controlled ramp phase To terminate a ramp in progress write 0 zero to the Setpoint Ramp register This results in immediate control to the target setpoint Setpoint Ramp Using Periodic Setpoint Write Register B A host computer can command the setpoint value of the controller by writing new setpoint values based on clock ticks In this manner the host has expli
44. lines show factory setting of 20 mA JUMPER POSITION TO SELECT LINEAR OUTPUT RANGE 10 20 MAIN OUTPUT JUMPERS SECONDARY OUTPUT JUMPERS REAR VIEW Figure 11 Linear Output Range Jumpers 12 FRONT PANEL DESCRIPTION The front panel bezel material is flame and scratch resistant tinted plastic that meets NEMA 4X IP65 requirements when properly installed Continuous exposure to direct sunlight may accelerate the aging process of the bezel The bezel should be cleaned only with a soft cloth and neutral soap product Do NOT use solvents There are two 4 digit LED displays a red upper Main Display and a lower green Secondary Display There are up to six annunciators with red backlighting that illuminate to inform the operator of the controller and output status See Figure 12 Front Panel for a description of the annunciators Four front panel buttons are used to access different modes and parameters The following is a description of each button Do NOT use tools of any kind screwdrivers pens pencils etc to operate the keypad of this unit BUTTON FUNCTIONS D Inthe Normal Display Mode the Display D button is used to select one of the operational parameters in the secondary display In other modes pressing the D button causes the controller to exit escape directly to the Normal Display Mode P The Parameter P button is u
45. not transmit mnemonics Print options yes no no Selecting yes allows print options shown below to be programmed Input yes no yes Setpoint yes no yes Output Power yes no yes Proportional Band yes no no Integral Time yes no 27 Display Parameter Range and Units Factory Setting Description Comments dEr Derivative Time yes no no AL1 Alarm 1 yes no no AL2 Alarm 2 yes no no dEv Deviation From Setpoint yes no no Output Power Offset yes no no Setpoint Ramp Rate yes no no Relative Gain yes no no Deadband yes no no Output Status yes no no Remote Setpoint yes no no Heater Current Model Number Dependent yes no no Configure Module 7 Remote Setpoint Parameters 7 5 or 7 n2 Controller returns to configuration access point CnFP NO if remote setpoint option is not installed Display Parameter Range and Units Factory Setting Description Comments Remote setpoint display scaling point 1 999 to 9999 0 T48 0 0 P48 Remote setpoint display low value Remote setpoint input scaling point 1 0 00 to 20 00 mA 4 00 Key input low value or Press D to select Signal Input method Remote setpoint display scaling point 2 999 to 9999 1000 T48
46. offset OPOF initially set to zero to eliminate steady state errors This parameter appears in unprotected parameter mode when integral time is set to zero The controller has the feature to prevent integral action when operating outside the proportional band This prevents reset wind up Note The Proportional band shift due to integral action may itself be reset by temporarily setting the controller into the ON OFF 1 control mode proportional band 0 DEVIATION TIME OUTPUT INTEGRAL OUTPUT POWER Z a PROPORTIONAL OUTPUT NOTE TOTAL OUTPUT IS THE SUM OF THE THREE PID SETTINGS INTEGRAL TIME L Figure 31 Integral Time Derivative time is defined as time seconds which output due to proportional action alone equals the output due to derivative action with a ramping process error As long as a ramping error exists the derivative action is repeated by proportional action every derivative time The units of derivative time are seconds per repeat Derivative action is used to shorten the process response time and helps to stabilize the process by providing an output based on the rate of change of the process In effect derivative action anticipates where the process is headed and changes the output before it actually arrives Increasing the derivative time helps to stabilize the respons
47. panel cutout While holding the unit in place push the panel latch over the rear of the unit engaging the tabs of the panel latch in the farthest forward slot possible 5 To achieve a proper seal tighten the panel latch screws evenly until the unit is snug in the panel torquing the screws to approximately 7 in lbs 79 N cm Over tightening can result in distortion of the panel and reduce the effectiveness of the seal Note The installation location of the controller is important Be sure to keep it away from heat sources ovens furnaces etc and away from direct contact with caustic vapors oils steam or any other process byproducts in which exposure may affect proper operation PANEL LATCH INSTALLED FOR VERTICAL UNIT STACK 2 39 60 7 1 96 49 8 PANEL LATCH INSTALLED FOR 0 024 1 772 0 000 4525 0 024 1 772 0 000 45 8 27 HORIZONTAL UNIT STACKING SLOTS Se PANEL LATCH 2 Figure 1 Panel Installation LATCHING MULTIPLE UNIT STACKING The controller is designed for close spacing of multiple units Units can be stacked either horizontally or vertically For vertical stacking install the panel latch with the screws to the sides of the unit For horizontal stacking the panel latch screws should be at the top and bottom of the unit The minimum spacing from center line to center line
48. power dampening The amount of dampening to be used depends primarily on the response time of the process and the amount of final actuator activity desired Generally dampening times in the range of 1 20 to 1 50 of the controller s integral time or process time constant prove to be effective Dampening times longer than these may cause controller instability due to the added lag effect of too much filtering In the case where a relatively high dampening time is desired the controller s proportional band may be increased to restore an adequate stability margin The Auto tune procedure of the controller sets the dampening value appropriate to the characteristics of the process Control Hysteresis 5 The controller be placed in the ON OFF control mode by setting the proportional band to 0 0 The control hysteresis value affects only the control outputs Alarms have a separate hysteresis setting See ON OFF Control page 48 for more details CHYS 110250 The hysteresis band should be set to a minimum value to eliminate output chatter at the setpoint Generally 2 to 5 is sufficient for this purpose Set the hysteresis band to factory setting prior to invoking Auto Tune After Auto Tune the hysteresis band has no effect on PID Control Auto Tune Code tcod Prior to invoking Auto Tune the Auto Tune code should be set to achieve the desired dampening level under PID Control After Auto Tune is complete changes
49. regulations local codes and instructions that appear in the manual or on equipment must be observed to ensure personal safety and to prevent damage to either the instrument or equipment connected to it If equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired Do not use the controller to directly command motors valves or other actuators not equipped with safeguards To do so can be potentially harmful to persons or equipment in the event ofa fault to the unit An independent and redundant temperature limit indicator with alarm outputs is strongly recommended INSTALLATION DESCRIPTION The controller meets NEMA 4X IP65 requirements for indoor use to provide a watertight seal in steel panels witha minimum thickness of 0 09 inch or aluminum panels with aminimum thickness of 0 12 inch The units are intended to be mounted into an enclosed panel It is designed so that the units can be stacked horizontally or vertically see Figure 1 The bezel assembly MUST be in place during installation of the unit INSTRUCTIONS 1 Prepare the panel cutout to the dimensions shown in Figure 1 Panel Installation 2 Remove the panel latch from the unit Discard the cardboard sleeve 3 Carefully remove the center section of the panel gasket and discard Slide the panel gasket over the unit from the rear seating it against the lip at the front of the case 4 Insert the unit into the
50. sets the parity bit to odd even or none mark parity for outgoing data 63 Stop Bit The last character transmitted is the stop bit The stop bit provides a single bit period pause to allow the receiver to prepare to re synchronize to the start of new transmission start bit of next byte After the stop bit the receiver continuously looks for the occurrence of the next start bit Command Response Time The controller can only receive or transmit data at any one time half duplex operation If bus activity such as another command occurs before the controller has ended its transmission garbled data will result When sending commands and data to the controller timing restrictions are imposed when sending another command afterwards This allows enough time for the controller to process the command and prepare for the next command If the timing requirements are not obeyed lost transmissions may result NO RESPONSE FROM CONTROLLER Command Meter String Response 1 1 1 Tronsmission Time Ready RESPONSE FROM CONTROLLER Ready t ts Command First Reply Character Transmission Terminator Received of Reply Time Figure 37 Timing Diagram At the start of the time interval t the computer program prints or writes the string to the com port thus initiating a transmission During ti the command characters are transmitting and at the end of this period the command
51. the system be minimized as these may have an effect on the parameter determination Initiate Auto Tune Auto Tune may be initiated at start up from setpoint or at any other process point To Initiate Auto Tune 1 Make sure that Auto Tuning is enabled in Lockouts Parameter Module 3 LO 2 Place the controller into the Normal Display Mode 3 Press P for 3 seconds from Normal Display Mode 4 Scroll to tUNE by use of P if necessary 5 Select YES and press P Auto Tune is initiated To Cancel Auto Tune Old PID settings remain in effect A Make sure that Auto Tuning is enabled in parameter lockouts module 1 Place the controller into the normal display mode 2 Press P for 3 seconds from normal display mode 3 Scroll to tUNE by use of P if necessary 4 Select NO and press P 5 Auto Tune canceled B Or reset the controller by disconnecting power 52 Auto Tune Of Heat Cool Systems During Auto Tune of heat cool systems the controller switches the cooling output O2 on and off in addition to the heat output O1 The heat cool overlap deadband parameter db 2 determines the amount of overlap or deadband between the two outputs during Auto Tune For most applications set this parameter to 0 0 prior to starting Auto Tune After the completion of Auto Tune this parameter may need to be reset It is important that external load disturbances be minimized and if present other zone controllers idled
52. to tcod parameter have no effect until Auto Tune is restarted When set to 0 this yields the fastest process response with possible overshoot A setting of 2 yields the slowest response with the least amount of overshoot Dampening codes of 0 or are recommended for most thermal processes INPUT 4 5 TYPICAL RESPONSE CURVES WITH 1 AUTOTUNE CODES 0 TO 2 TIME Figure 16 Auto Tune Code 37 Main Linear DC Output Range Optional Select the type of output range 0 10 0 to 10 V 0 20 0 to 20 mA 4 20 4 to 20 mA The linear DC output range jumper must be set to match the range selected See Linear DC Output Jumper Selection page 12 The linear DC output can be re calibrated to provide up to 5 of over range operation See Main or Second Linear DC Analog Output Calibration page 71 Main Linear DC Output Source ANAS Optional The output can be programmed to transmit one of the below variables OP Output Power control INP Temperature retransmission SP Setpoint local or remote retransmission For Linear DC Output control the main output O1 can be disabled by setting the Cycle Time CYCt to 0 in Output Parameter 2 OP or configuring it as an alarm in Alarm 1 Action in Alarm Parameter 4 AL For heat cool with 4 to 20 mA control applications the heat 0 to 100 will be 12 to 20 mA and the cool 100 to 0 will be 4 to 12 mA Notice that 0 no heat or cool is 12 mA Mai
53. 13 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 oO 0 JA 5 5 5 5 5 5 5 5 5 5 5 4 4 4 5 5 5 5 5 o 9 o o o o o o o o o o o o j oo o T4821104 T4821114 9 12 74832200 74832210 is the Terminal Terminals 9 amp 10 need to be shorted together Remote Setpoint or Heater Current Input 8 REAR TERMINAL ASSIGNMENTS T48 Models With RS 485 or Linear DC Analog Output RTD AC DC Power Analog Main Out Dedicated 1 O1 A1 Dedicated 01 2nd Input Option Analog 2nd Out Short C ACI ACI C 0 AC Model 74810002 T481010A DC Model 74810012 T481011A 74810101 74810111 74810105 74810115 74810106 1481 0116 74810107 74810108 74810117 74810118 74810109 74810119 74811002 74811012 74811102 74820201 74811112 74820211 74820205 74820215 74820206 74820208 74820216 74820218 74820209 74820219 is the Terminal Terminals 9 amp 10 need to be shorted together Remote Setpoint or Heater Current Input 9 T4821102 T4821112
54. 17 14810118 14810119 4811112 74820211 74820215 74820216 74820218 74820219 14821112 74810002 481010 74810101 74810105 74810106 74810107 74810108 74810109 74811102 74820201 74820205 74820206 74820208 74820209 14821102 Relay Relay YES Relay Relay Relay Relay Relay Relay Relay Relay Relay Relay Relay Relay Logic SSR Logic SSR Logic SSR Logic SSR Logic SSR Logic SSR Logic SSR Logic SSR Logic SSR Logic SSR Logic SSR Rela This output is programmable as either Control PID or as an Alarm This output is jumper and program selectable for either a current or voltage Linear DC output These part numbers are equipped with a second setpoint Replacement Output Board RBD48100 may be used 25 Replacement Output Board RBD48111 may be used T48 ACCESSORIES DESCRIPTION External SSR Power Unit for Logic SSR output models Single Phase 25 A DIN Rail Mount Solid State Relay Single Phase 40 A DIN Rail Mount Solid State Relay Three Phase DIN Rail Mount SSR 40 Ampere Current Transformer for Heater Current Input models 50 Ampere Current Transformer for Heater Current Input models PC Configuration Software for Windows 98 ME 2000 and XP for RS485 models RS232 RS485 Serial Converter Module Three Way Isolated RS232 RS485 Serial Converter PART NUMBERS RLY50000 RLY60000 RLY6A000 RLY70000 CT004001 CT005001
55. 2 Key in the display value for scaling point one and scaling point two dSP1 999 to 9999 0 0 dSP2 999 to 9999 100 0 Signal Input Values 1 2 The signal input value can either be keyed in via the front panel buttons or an input signal can be applied to the appropriate signal input terminals When entering the signal input parameter the unit is in the key in mode Key in Method Key in the signal value for scaling point one and scaling point two INPI 999 to 9999 Ex 0 00 VDC or 4 00 mA DC INP2 999 to 9999 Ex 10 00 VDC or 20 00 mA DC Signal Input Method To change to the apply signal method press the D button Front panel annunciators and DV will flash and the display indicates the signal value applied to the input terminals The unit can be toggled to the key in method by pressing the D button again Signal Range Display Range 4 00 to 20 0 mA DC 0 00 to 20 00 0 00 to 10 00 VDC 0 00 to 10 00 When the desired value is indicated on the display press the P button to store the value and advance to the next parameter 34 Setpoint Limit Values SPLO amp SPHI The controller has programmable high and low setpoint limit values to restrict the setting range of the setpoint Set the limit values so that the setpoint value cannot be set outside the safe operating area ofthe process On models equipped with Second Analog Input configured as a Remote Setpoint the Remote Setpoint reading is al
56. 3 LC Factory settings for these parameters is lock In this mode these controller functions can be performed Remote SP1 SP2 Setpoint Selection Automatic Manual Transfer Initiate Cancel Auto tune Reset Alarm Outputs The P button is used to scroll to the desired function and the Up and Down buttons are used to select the operation Pressing the P button while the function is displayed executes the function and returns the unit to the Normal Display Mode Pressing the D button exits this mode with no action taken The unit automatically returns to the Normal Display Mode if no action is taken within a few seconds Hidden Function Mode Reference Table Range and Units Parameter Factory Setting Value Description Comments Setpoint Select SP1 Setpoint 1 SP2 Setpoint 2 rSP Remote Setpoint Exits to Normal Display Mode after being executed Auto Automatic control User Manual control Auto Transfer mode of operation Exits to Normal Display Mode after being executed Yes starts the auto tune sequence No terminates the auto tune sequence NO Auto tune Invocation Exits to Normal Display Mode after being executed Does not exit to Normal Display Mode after being executed UP button resets Alarm 1 DOWN button resets Alarm 2 Model Number Dependent 20 CONFIGURATION PARAMETER MODE The Configuration Parameter Mode is accessed by pressing the Up button from
57. 4466 000000000000 000000000000 00 3 Unit Removal Procedure 3 Removing Bezel Assembly 3 Installing Bezel Assembly 3 CONNECTION DESCRIPTION n 4 EMC Installation set ee 4 Wiring ConnectionS ee 5 Signal Wiring a 4 44000000 0 hh horn 5 Thermocouple T48 I 5 RTD 748 A 5 Signal P48 SA a 6 Power Wiring 444 4 444 4 4 6 4000 00000000000 0000 000000000 0 0 0 000000000000 000004 4 6 Control Alarm Outputs a o n n hh sh ohh ons on hon n nh nh n hh m nn 6 Relay Connections 3 5 IHR HH 6 Logic SSR Connections T48 only amp UIT 7 Triac Connections T48 only ST 7 Heater Current Monitor Wiring T48 only 7 Remote Setpoint Wiring 7 Main Linear DC Output Wiring DILUTED 7 Second Linear DC Output Wiring 444 4 4 44 4 404044004040 4064 600004000040 4000000 4 7 User Input Wiring LTD 7 Rear Terminal Assignments 8 T48 Models Without RS 485 Analog Output 8 T48 Models With RS 485 or Linear DC Analog Output 9 ALL P48 Models 10 Serial Connections to a Host Terminal 2222 11 Linear DC Analog Output Jumper Selection 72722 12 FRONT PANEL DESCRIPTION eee nents
58. Byte4 table Explanation Bytel 8 Byte2 0 Byte3 0 Byte4 C ASCH String P800C Either the or terminator could be used HEX String lt 50 gt lt 38 gt lt 30 gt lt 30 gt lt 43 gt lt 24 gt Terminator After a Read Register command is sent the response time of the controller is determined by the type of command terminator character The terminator causes a response time of 2 msec to 100 msec and the 4 terminator causes a response time of 100 msec to 200 msec The 2 msec delay allows for a two character transmission time at 9600 baud The controller does not begin processing the command string until the or is received The Carriage Return lt CR gt and the Line Feed lt LF gt cause the controller to ignore the command string When writing setpoint values only values using the terminator are saved to memory Block Read Byte Table Locate the desired register combination for each Byte X register to be printed Use ASCII 0 for blank trailing byte locations For those programming in HEX P lt 50 gt 0 lt 30 gt lt 2A gt lt 24 gt Byte1 Byte3 Setpoint Cooling Ramp Setpoint Deviation X rm O gt co co N o TIM O D gt ko o gt lt gt x gt P lt gt x gt
59. C 1 MO Vin MAX 5 25 32 to 3214 F red VDC 0 85 V max 3 65 V min 1 pA max 149 to 1820 C grey Response time 120 msec max 300 to 3308 F red Functions Program Lock 200 to 1300 C orange orange Integral Action Lock 328 to 2372 F red blue Auto Manual Mode Select 5 00 to 56 00 no standard standard Setpoint Ramp Enable Reset Alarms 8 RTD INPUT 48 only 2 or 3 wire 100 Q platinum alpha 0 00385 Local Remote Setpoint Select DIN 43760 alpha 0 0039162 Setpoint 1 Setpoint 2 Select Excitation 150 typical Serial Block Print Resolution 1 or 0 1 degree Lead Resistance 15Q max per input lead TC TYPE RANGE 10 VDC 0 10 of 0 30 of 1 to 11 reading reading 300 V 0 02 V 0 03 V 0 10 of 0 30 of reading reading 0 03 mA 0 04 mA 20 mA DC 2 to 22 77 11 CONTROL AND ALARM OUTPUTS Heating Cooling or Alarm Relay outputs with Form A contacts Contact Rating 3 A 250 VAC or 30 VDC resistive load 1 10 HP a 120 VAC inductive load Life Expectancy 100 000 cycles at max load rating Decreasing load and or increasing cycle time increases life expectancy Logic SSR Drive Outputs T48 only Rating 45 mA 4 V min 7 V nominal Triac Outputs 748 only Type Isolated Zero Crossing Detection 14 COOLING SECOND Software selectable overrides al
60. Configuration Software see 58 Controller Configuration II 58 Sending Commands And Data nn o n RR M M A A A A 6c 58 Sending Numeric n tm I RII 58 Controller Node Address nn RR ee 58 Commands Table o I RII IA A RA AA RH IR 58 Register Identification nn RR RI KI ee 59 Terminator Table ee 59 Examples of Command Strings 4144444 4 59 Code Explanations ce ee ce ee a ee 59 Controller Node Address Neer ttt ee 59 Read Register Command Code 60 Write Register Command Code 60 Reset Alarm Command Code R 60 Control Action Command Code 60 Register Command Code 60 Terminator or 4144444 60 Block Read Byte 61 Unique Register Explanations 144444 4 62 Setpoint Ramp Using Automatic Setpoint Ramping Register 62 Setpoint Ramp Using Periodic Setpoint Write Register 62 Periodic Setpoint Write Commands 4 62 Heater Current Response HC T48 only Se 62 Output Status 4
61. Hz Protection Internal transient snubber 120VAC ISOLATED Ei RELAY OR 1 AMP AT TRIAC POWER 120 240 DEVICE LOAD Figure 9 Triac Output 575 HEATER CURRENT MONITOR WIRING 748 ONLY Models with Heater Current Monitor option have two input terminals to receive the output directly from a 100 mA current transformer Caution Never connect a current transformer with a rating other than 100 mA These terminals are labeled 13 and 14 2nd Input Option There is no polarity observation for these inputs This input is only for single phase heaters REMOTE SETPOINT WIRING Models with the Remote Setpoint option have two input terminals to receive a 0 to 20 mA signal Connect the Remote Setpoint signal to terminals labeled 13 and 14 2nd Input Option The common of this input is isolated from input common but is not isolated from the Linear DC output commons For proper operation keep this common isolated from all other controller commons MAIN LINEAR DC OUTPUT WIRING Models with the Linear DC output option provide either a linear 10 V ora linear 20 mA signal The output range is selected by jumpers on the output board See Linear DC Analog Output Jumper Selection page 12 The terminals 1 and 2 The common of this output is isolated from input common but is not isolated from other commons For proper operation keep this common isolated from all other con
62. ITED WARRANTY The Company warrants the products it manufactures against defects in materials and workmanship for a period limited to two years from the date of shipment provided the products have been stored handled installed and used under proper conditions The Company 5 liability under this limited warranty shall extend only to the repair or replacement of a defective product at The Company s option The Company disclaims all liability for any affirmation promise or representation with respect to the products The customer agrees to hold Red Lion Controls harmless from defend and indemnify RLC against damages claims and expenses arising out of subsequent sales of RLC products or products containing components manufactured by RLC and based upon personal injuries deaths property damage lost profits and other matters which Buyer its employees or sub contractors are or may be to any extent liable including without limitation penalties imposed by the Consumer Product Safety Act P L 92 573 and liability imposed upon any person pursuant to the Magnuson Moss Warranty Act P L 93 637 as now in effect or as amended hereafter No warranties expressed or implied are created with respect to The Company 5 products except those expressly contained herein The Customer acknowledges the disclaimers and limitations contained and relies on no other warranties or affirmations T P48 IM G 8 07 DRAWING NO LP0466 Red Lion Controls AP Red
63. Lion Controls Red Lion Controls BV 31 Kaki Bukit Road 3 20 Willow Springs Circle Printerweg 10 06 04 05 TechLink York PA 17406 NL 3821 AD Amersfoort Singapore 417818 Tel 1 717 767 6511 Tel 31 0 334 723 225 Tel 65 6744 6613 Fax 1 717 764 0839 31 0 334 893 793 Fax 65 6743 3360
64. Ltr XX Calculated by Auto Tune ALARM dSP1 0 0 Input low value TONER INP1 0 00 Low display value t dSP2 10 0 Input high value INP2 150 00 High display value z RECORDER SPLO 40 0 Setpoint low limit kd SPHI 80 0 Setpoint high limit ALARM ALARM SPrP 0 0 No ramping INPt PLOC User input program lock 2ND ANALOG 2 Configure Output Parameters T USER 0 Disable 1 output EUM D remaining parameters this module to factory settings L 12 28 CF 4 AL Confi onfigure Alarm Parameters 02702 N O 4 5 8 7 Set 01 A1 for control output COMM e 10 V rSt1 LAtC Manual reset L 01 A1 N 0 5 5161 Disable alarm during I AL 1 90 0 Set 90 0 gal min high alarm value UNIT POWER Act2 A LO Set alarm 2 for deviation band from setpoint rst2 LAtC Manual reset Stb2 yes Disable alarm during power up AL 2 20 0 Set 20 0 gal min low alarm value CONTROL FLOW 5 5 0 Alarm activation hysteresis VALVE SENSOR 8 A2 Configure Second Analog Parameter A2tP 4 20 4 20 mA retransmitted 5 A2LO 0 0 Display low value A2HI 150 0 Display high value Figure 40 Water Processing Application Factory Settings 68 5 CALIBRATION The instrument has been fully calibrated at the factory for all input types the unit appears to be indicating or controlling incorrectly
65. Select the alarm action with care In some configurations the front panel indicator LED might be OFF while the output is ON ABSOLUTE HIGH ACTING ALARM INPUT OUTPUT OFF OUTPUT ON OUTPUT OFF OUTPUT ON LED OFF LED ON LED OFF LED ON ABSOLUTE LOW ACTING ALARM A LO INPUT AL I I OUTPUT OFF OUTPUT ON OUTPUT OFF OUTPUT ON LED OFF LED ON LED OFF LED ON 40 DEVIATION WITH POSITIVE ALARM VALUE INPUT SP AL 5 OUTPUT OFF LED OFF OUTPUT ON LED ON OUTPUT OFF LED OFF OUTPUT ON LED ON DEVIATION HIGH ACTING WITH NEGATIVE ALARM VALUE d HI INPUT 5 SP AL OUTPUT ON OUTPUT OFF OUTPUT ON OUTPUT OFF LED OFF LED ON LED OFF LED ON BAND INSIDE ACTING b IN INPUT DEVIATION LOW ACTING WITH POSITIVE ALARM VALUE 4 10 INPUT SP AL HYS SP AL SP sP I SP AL 1 OUTPUT ON OUTPUT OFF OUTPUT ON OUTPUT OFF LED OFF LED ON LED OFF LED ON OUTPUT ON OUTPUT OFF OUTPUT ON OUTPUT OFF OUTPUT ON OUTPUT OFF LED OFF LED ON LED OFF LED ON LED OFF LED ON DEVIATION LOW ACTING WITH NEGATIVE ALARM VALUE d LO INPUT BAND OUTSIDE ACTING b Ot INPUT SP AL SP 8 SP AL SP AL OUTPUT OFF OUTPUT ON OUTPUT OFF OUTPUT ON LED OFF LED ON LED OFF LED ON OUTPUT OFF OUTPUT ON OUTPUT OFF O
66. THE 1 16 DIN CONTROLLERS TEMPERATURE PROCESS 222222 2 1 MODELS 48 P48 INSTRUCTION MANUAL INTRODUCTION The Temperature Controller T48 and Process Controller P48 are both multi purpose series of industrial control products that are field programmable for solving various applications These series of products are built around the concept that the end user has the capability to program different personalities and functions into the controllers in order to adapt to different indication and control requirements The controller which you have purchased has the same high quality workmanship and advanced technological capabilities that have made Red Lion Controls the leader in today s industrial market Red Lion Controls has a complete line of industrial indication and control equipment and we look forward to servicing you now and in the future UL Recognized Component US File 4 156876 C CAUTION Risk of Danger CAUTION Risk of electric shock Read complete instructions prior to installation and operation of the unit Table of Contents GENERAL teen 3 3 nn 1 Safety Summary 144 4 444 s i i sns 1 INSTALLATION DESCRIPTION 2 InstructiOnS 2 Multiple Unit Stacking 4144 44 44 4 4 44440444
67. URE OUTPUT 2 MNEMONIC OPLO OPHI OPFL OPdP CHYS tcod 5 ANLO ANHI PARAMETER Cycle Time Output Control Action USER SETTING Output Power Lower Limit Output Power Upper Limit Sensor Fail Power Preset Output Power Dampening ON OFF Control Hysteresis Auto Tune Dampening Code Linear Output Range Linear Output Source Linear Output Update time Linear Output Scale Point Low Linear Output Scale Point High CONFIGURE LOCKOUTS 3 LC CONFIGURE SERIAL COMMUNICATIONS 6 5 USER SETTING MNEMONIC PARAMETER USER SETTING sP Access Setpoint bAUd Baud Rate OP Access Output Power ConF Character Frame Format dEv Access Deviation Display Addr Controller Address Hcur Access Heater Current Abrv Abbrev or Full Transmission UdSP Access Display Units PoPt Print Options CodE Access Code Number INP dEv Pld Access PID Values SEt OFP AL Access Alarm s Values OPr rP ALrS Enable Reset Alarm s Pbd Crg SPSL Enable Remote Local Transfer Int Cdb trnF Enable Auto Man Transfer dEr OSt tUNE Enable Auto tune AL1 RSP AL2 HCr CONFIGURE ALARMS 4 AL MNEMONIC PARAMETER USER SETTING CONFIGURE REMOTE SETPOINT 7 rS 7 n2 Alarm 1 Action Mode MNEMONIC PARAMETER USER SETTING rSt1 Alarm 1 Reset Mode dSP1 Remote Setpoint Display Value 1 Stb1 Alarm 1 Standby Enabled INP1 Remote Setpoint Input Value 1 AL 1 Alarm 1 Value dSP2 Remote Setpoint Display Value 2 Act2 Alarm 2 Actio
68. UTPUT ON OUTPUT OFF OUTPUT ON LED OFF LED ON LED OFF LED ON LED OFF LED ON 41 Alarm Reset rSt1 512 Each alarm reset action may be independently configured LAtC Latched Auto Automatic Latched alarms require operator action to reset the alarm condition The front panel buttons can be used to reset an alarm when the controller is in the Hidden Function Mode See page 20 An alarm condition may also be reset via the user input Automatic reset alarms reset by the controller when the alarm condition clears Figure 17 Alarm Reset Sequence depicts the reset actions INPUT ALARM MODE 4 ABSOLUTE LOW ACTING SHOWN ALARM VALUE TIME AUTOMATIC N N me _ 9 OFF 9 OFF MANUAL RESET OFF ON OFF ON MANUAL RESET PERFORMED BY OPERATOR Figure 17 Alarm Reset Sequence Alarm Standby Delay Stb1 Stb2 The alarm s may be independently configured to exhibit a power on standby delay which suppresses the alarm output from turning ON until the temperature first stabilizes outside the alarm region After this condition is satisfied the alarm standby delay is canceled and the alarm triggers normally until the next controller power on This feature also works for deviation and band alarms when the setpoint is changed via keypad This action suppresses nuisance alarms Figure 18 Alarm Standby Delay Sequence depicts a typical op
69. all connections are clean and tight that the correct output board is fitted and that the set up parameters are correct For further technical assistance contact technical support at the appropriate company numbers listed PROBLEMS POSSIBLE CAUSE REMEDIES NO DISPLAY Power off Brown out condition Loose connection or improperly wired Bezel assembly not fully seated into rear of unit Check power Verify power reading Check connections Check installation CONTROLLER NOT WORKING Incorrect parameter set up Check set up parameters IN DISPLAY Defective front panel button Press D to escape then check all buttons for proper operation Replace unit E UP IN DISPLAY Internal problem with controller Replace unit E E2 IN DISPLAY Loss of set up parameters due to noise spike Press D to clear then check all set up parameters a Check sensor input and AC line for excessive noise b If fault persists replace unit E CL IN DISPLAY Loss of calibration parameters due to noise spike Press D to clear then check accuracy of controller a Recalibrate controller b Reset calibration parameters to nominal values See Factory Service Operations Module IN DISPLAY Display value exceeds display range Defective or mis calibrated cold junction circuit Loss of set up parameters
70. ally the primary requires re tuning whenever the secondary PID constants are changed Note For Remote Setpoint controllers the Auto Tune control point is derived from the Remote Setpoint when in Remote Setpoint mode and from the Local Setpoint when in Local Setpoint mode Q US PID CONTROL EXPLANATIONS Proportional Band Proportional band is defined as the band range the process changes to cause the percent output power to change from 0 to 100 The band may or may not be centered about the setpoint value depending upon the steady state requirements of the process The band is shifted by manual offset or integral action automatic reset to maintain zero error Proportional band is expressed as percent of input sensor range For T48 the ranges are fixed for the thermocouple and RTD types For P48 the range is set by the difference between dSP2 and dSP1 OUTPUT REVERSE DIRECT POWER 2 ACTING ACTING 1 P BAND P BAND 01 01 100 0 TEMPERATURE HEATING COOLING SETPOINT Figure 30 Proportional Band Example Thermocouple type T with a temperature range of 600 C is used and is indicated in degrees Celsius with a proportional band of 5 This yields a band of 600 C X 5 30 C The proportional band should be set to obtain the best response to a disturbance while minimizing overshoot Low proportional band settings high gain result in quick controller response at expense of stability and increase
71. alue 999 to 9999 1000 T48 Corresponding temp process value for high output Configure Module 9 Factory Service Operations 9 FS Display Parameter Range and Units Factory Setting Description Comments CodE Factory service function code 48 Calibrate instrument Refer to Calibration Section for details 66 Reset parameters to factory settings 77 twice succession Reset controller calibration to nominal values Caution This operation results in up to 10 reading error USER VALUE CHART P48 CONFIGURE INPUT 1 INP CONTROLLER NUMBER MNEMONIC PARAMETER USER SETTING tYPE Input Type MNEMONIC PARAMETER USER SETTING dcPt Decimal Point SP Setpoint rnd Rounding Increment OPOF Output Power Offset FLtr Digital Filtering OP Output Power dSP1 Display Value 1 ProP Proportional Band InP1 Signal Input Value 1 Intt Integral Time dSP2 Display Value 2 dErt Derivative Time InP2 Signal Input Value 2 AL 1 Alarm 1 Value SPLO Setpoint Lower Limit AL 2 Alarm 2 Value SPHI Setpoint Upper Limit SPrP Setpoint Ramp Rate InPt User Input T48 CONFIGURE INPUT 1 INP MNEMONIC tYPE SCAL dCPt FLtr SHFt SPLO SPHI SPrP InPt PARAMETER Input Sensor Type USER SETTING Temperature Scale Units Temperature Resolution Digital Filtering Input Offset Setpoint Lower Limit Setpoint Upper Limit Setpoint Ramp Rate User Input 29 CONFIG
72. and P48 controllers Parameters that are model number or program dependent will only be displayed when the appropriate options are installed or programmed Some parameters are accessible but may not be applicable for the chosen output control mode type REFERENCE TABLES CONFIGURATION PARAMETER MODULES Configure Module 1 Input Parameters 1 IN T48 These tables are only used for programming the T48 models Use the tables on page 22 if you are programming a P48 Display Parameter Range and Units Factory Setting Description Comments tYPE Input Type tc t Type T TC tc E Type E TC tc J Type J TC tc k Type K TC tc r Type tc S Type S TC tc b Type B TC tc N Type N TC LIN Linear mV display Thermocouple select r385 385 curve RTD r392 392 curve RTD rLIN Linear ohms display tc J RTD select Temperature Scale F C CF If scale is changed be sure to check all parameters Temperature Resolution 0 or 0 0 0 If resolution changed be sure to check all parameters Digital Input Filtering And Display Update 0to4 1 Increase number for more filtering effect 4 500 msec display update rate Adjusted by Auto Tune 21 Display Parameter Range and Units Factory Setting Description Comments SHFt Input Signal Shift correction offset 999 to 9999 1 or 0 1 degree 0 Normally set to 0 Setpoi
73. arm 2 Control PID or ON OFF Output Time proportioning Cycle time Programmable Proportional Gain Adjust Programmable Heat Cool Deadband Overlap Programmable 15 MAIN AND SECOND LINEAR DC OUTPUT optional Main Control or Re transmission programmable update rate from 0 1 sec to 250 sec Second Re transmission only fixed update rate of 0 1 sec Accuracy Rating Voltage 120 240 VAC Max Load Current 1 Amp 35 C 0 75 Amp 50 Min Load Current 10 mA Offstate Leakage Current 7 mA max 60 Hz Operating Frequency 20 to 400 Hz Protection Internal transient snubber 12 MAIN CONTROL Control PID or ON OFF Output Time proportioning or linear DC Cycle time Programmable Auto tune When selected sets proportional band integral time and derivative time values Probe Break Action T48 only Programmable 13 ALARM 1 or 2 alarms model dependent optional Modes Absolute high acting Deviation high acting Inside band acting Heater break alarm Absolute low acting Deviation low acting Outside band acting Reset Action Programmable automatic or latched Standby Mode Programmable enable or disable Hysteresis Programmable Probe Break Action T48 only Upscale Annunciator LED backlight for A1 A2 78 Output Range Accuracy 18 to 28 C 0 to 50 C Compliance Resolution 0 to 10V 0 10 of FS 1 2 LSD 0 30 of FS 1 2 LSD 10k ohm min 1 3500 0 to 20 mA 0 10 o
74. bezel assembly be handled only by the bezel itself Additionally if it is necessary to handle a circuit board be certain that hands are free from dirt oil etc to avoid circuit contamination that may lead to malfunction If it becomes necessary to ship the unit for repairs place the unit in its case before shipping INSTALLING BEZEL ASSEMBLY To install the bezel assembly insert the assembly into the case until the bezel is fully seated against the lip of the case Properly installing the bezel assembly is necessary for watertight sealing CONNECTION DESCRIPTION EMC INSTALLATION GUIDELINES Although this unit is designed with a high degree of immunity to Electro Magnetic Interference proper installation and wiring methods must be followed to ensure compatibility in each application The type of the electrical noise source or coupling method into the unit may be different for various installations Listed below are some EMC guidelines for successful installation in an industrial environment 1 The unit should be mounted in a metal enclosure which is properly connected to protective earth 2 Use shielded screened cables for all Signal and Control inputs The shield screen pigtail connection should be made as short as possible The connection point for the shield depends somewhat upon the application Listed below are the recommended methods of connecting the shield in order of their effectiveness a Connect the shiel
75. cit control over setpoint values ramp and hold phases During ramp phases the Integral Action may lead to overshoot problems In this case the integral action may be slowed or completely disabled by setting the integral time register Periodic Setpoint Write Commands precautions In the case of periodically writing setpoint values to the controller host is running a temperature process profile terminate the write command with the terminator character This instructs the controller to accept the setpoint value but not to write the value to memory This eliminates cycling of the internal memory chip which has a finite life cycle rating 1 million typical This rating should not be exceeded After power loss the setpoint value written will be lost when using Termination of the setpoint write command with the character instructs the controller to save the value to memory In this case the setpoint value will be recalled after a power loss 62 Heater Current Response 48 only The Heater Current register identifies whether the output is on or off at the time it is read This is indicated by the three letter mnemonic HCN or HCF N on F off For example when a read occurs while the output is off this response occurs HCF x x This indicates that the heater current reading is with the main output switched off If the controller responds with HCN x x t
76. d Determines blank secondary display Access code 0 to 250 0 Refer to front panel disable section for access levels 24 Display Parameter Range and Units Factory Setting Description Comments PID values access LOC lockout rEd read only LOC nter Protected Mode lockout Alarm values enable LOC ockout rEd read only Ent e LOC nter Protected Mode lockout Reset alarms enable LOC ockout ENBL enable LOC Hidden Mode lockout SP1 SP2 Remote setpoint enable LOC lockout ENBL enable LOC Hidden Mode lockout Automatic Manual user mode select enable LOC lockout ENBL enable LOC Hidden Mode lockout Auto tune enable Model Number Dependent LOC lockout ENBL enable LOC Hidden Mode lockout Configure Module 4 Alarm Parameters 4 AL Controller returns to configuration access point CnFP NO if alarm s are not installed Display Parameter Range and Units Factory Setting Description Comments ACt1 Alarm 1 action mode A HI absolute high A LO absolute low d HI deviation high d LO deviation low b IN band inside b ot band outside Hcur heater current alarm Heat control output A HI HEAt If changed check alarm values If heat is selected the remaining alarm parameters do n
77. d overshoot Settings that are excessively low produce continuous oscillations at setpoint High proportional band settings low gain result in a sluggish response with long periods of process droop A proportional band of 0 0 forces the controller into ON OFF control mode with its characteristic cycling at setpoint See ON OFF Control page 48 for more information 53 Integral Time Integral time is defined as the time in seconds in which the output due to integral action alone equals the output due to proportional action with a constant process error As long as a constant error exists integral action repeats the proportional action each integral time Integral action shifts the center point position ofthe proportional band to eliminate error in the steady state The units of integral time are seconds per repeat Integralaction also known as automatic reset changes the output power to bring the process to setpoint Integral times that are too fast small times do not allow the process to respond to the new output value This causes over compensation and leads to an unstable process with excessive overshoot Integral times that are too slow large times cause a slow response to steady state errors Integral action may be disabled by setting the time to zero If time is set to zero the previous integral output power value is maintained If integral action is disabled manual reset is available by modifying the output power
78. d the type of output used CYCt 010250 seconds For best control a cycle time equal to 1 10 of the process time constant or less is recommended longer cycle times could degrade temperature control and shorter cycle times provide little benefit at the expense of shortened relay life When using a Logic SSR drive output with the SSR Power Unit a relatively short cycle time may be selected A setting of zero keeps the main control output and front panel indicator off This is useful if using the linear DC output signal for control On some models output 1 can be configured as an alarm output ACt1 under Module 4 AL Output Control Action OPAC For heat and cool applications the main output O1 is normally used for heating reverse acting and the optional cooling output O2 is normally used for cooling direct acting rEv Reverse acting drct Direct acting If O2 cooling is not used then the action can be reverse or direct acting When used for control output the Main Linear DC output operation is affected by this parameter Output Power Limits OPLO amp OPHI Enter the safe output power limits for the process These parameters may also be used to limit the minimum and maximum controller power due to process disturbances or setpoint changes to reduce overshoots by limiting the process approach level OPLO amp OPHI 0 to 100 If the cooling output is selected the limits range from OPLO amp
79. d only at the panel where the unit is mounted to earth ground protective earth b Connect the shield to earth ground at both ends of the cable usually when the noise source frequency is above 1 MHz c Connect the shield to common of the unit and leave the other end of the shield unconnected and insulated from earth ground 3 Never run Signal or Control cables in the same conduit or raceway with AC power lines conductors feeding motors solenoids SCR controls and heaters etc The cables should be run in metal conduit that is properly grounded This is especially useful in applications where cable runs are long and portable two way radios are used in close proximity or if the installation is near a commercial radio transmitter 4 Signal or Control cables within an enclosure should be routed as far away as possible from contactors control relays transformers and other noisy components 4 5 In very electrically noisy environments the use of external EMI suppression devices such as ferrite suppression cores is effective Install them on Signal and Control cables as close to the unit as possible Loop the cable through the core several times or use multiple cores on each cable for additional protection Install line filters on the power input cable to the unit to suppress power line interference Install them near the power entry point of the enclosure The following EMI suppression devices or equivalent are recommended Ferrite
80. display to match the parameter being calibrated Press P when the output is correct or if the parameter is not being calibrated Exit Factory Service Operations press D return to Normal Display Mode 2 Connect a thermocouple probe of known accuracy to the controller Types T E J K and N only Select the probe type used in Configure Module 1 3 Connect a reference temperature probe to the measuring end of the T48 thermocouple probe The two probes should be shielded from air movement and allowed sufficient time to equalize in temperature As an alternative the T48 thermocouple probe may be placed in a calibration bath of known temperature 4 Compare controller display with reference temperature probe or calibration bath Ifthe displayed controller temperature does not equal the reference probe temperature calculate the CJ Error as follows External Meter Action 0 00 10 00 0 00 20 00 Parameter 0 V Calibration 10 V Calibration 0 mA Calibration 20 mA Calibration Display COV C 10V C 0c C 20c Adjust if necessary press P Adjust if necessary press P Adjust if necessary press P Adjust if necessary press P CJ Error reference probe temperature displayed controller temperature Remote Setpoint Calibration 5 Enter Factory Service Operations Module 9 FS Connect DC mA source with accuracy of 0 03 better Parameter Cold Junction Dis
81. duct quality is affected 1 A Remote Setpoint input 0 4 to 20 mA allows for cascade control loops where tighter control quality is required and allows for remotely driven setpoint signal from computers or other similar equipment Straightforward end point scaling with independent filtering and local remote transfer option expands the controller s flexibility The optional RS485 serial communication interface provides two way communication between a controller and other compatible equipment such as a printer PLC HMI or a host computer In multipoint applications up to thirty two the address number of each controller on the line can be programmed from 0 to 99 Data from the controller can be interrogated or changed and alarm output s may be reset by sending the proper command code via serial communications PC software SFCRM allows for easy configuration of controller parameters These settings can be saved to disk for later use or used for multi controller down loading On line help is provided within the software The unit is constructed ofa lightweight high impact plastic case with a tinted front panel The front panel meets NEMA 4X IP65 specifications when properly installed Multiple units can be stacked horizontally or vertically Modern surface mount technology extensive testing plus high immunity to noise interference makes the controller extremely reliable in industrial environments SAFETY SUMMARY All safety related
82. e ILOC Integral Action Lock A low level disables the integral action of the PID computation A high level resumes the integral action trnF Auto Manual Transfer A negative transition places the unit in the manual user mode and a positive transition places the unit in the automatic operating mode The output is bumpless when transferring to either operating mode SPrP Setpoint Ramp A low level terminates setpoint ramping and the controller operates at the target setpoint Terminating setpoint ramping is the same as setting the ramp rate to zero SPrP 0 0 A high level enables the programmed setpoint ramp rate ALIS Alarm Reset On models with alarms low level resets any active alarm s to their inactive state as long as the user input is low SP2 Setpoint 1 Setpoint 2 Select On models with Second Setpoint a low level selects setpoint 2 A high level selects setpoint 1 SPSL or RSP Local Remote Select On models with Secondary Analog Input a negative transition engages Remote Setpoint operation and a positive transition engages Local Setpoint operation The response ofthe controller to the setpoint transfer is set by the setpoint transfer parameter trnF under 7 rS 7 n2 module Prnt Print Request On models with Serial Communications a low level transmits the print option selected in the Serial Communications Module 6 SC Ifthe user input is held low after the printing is complete another
83. e but too much derivative time coupled with noisy signal processes may cause the output to fluctuate too greatly yielding poor control None or too little derivative action usually results in decreased stability with higher overshoots No derivative action usually requires a wider proportional and slower integral times to maintain the same degree of stability as with derivative action Derivative action is disabled by setting the time to zero 1 DEVIATION TIME output PROPORTIONAL OUTPUT POWER DERIVATIVE OUTPUT TIME NOTE TOTAL OUTPUT POWER IS THE SUM OF THE THREE PID SETTINGS DERIVATIVE TIME Figure 32 Derivative Time 54 Output Power Offset Manual Reset If the integral time is set to zero automatic reset is off it may be necessary to modify the output power to eliminate errors in the steady state The output power offset OPOF is used to shift the proportional band to compensate for errors in the steady state The output power offset OPOF parameter appears in the unprotected mode if the integral time equals zero If integral action automatic reset is later invoked the controller continues from the previous output power offset and updates accordingly PID Adjustments To aid in the adjustment of the PID parameters for improved process control chart recorder is necessary to provide a visual means of analyzing the process Compare the actual process response to th
84. e D button is pressed End will momentarily appear and the controller will return to the Normal Display Mode Protected Parameter Mode Reference Table Range and Units Parameter Factory Setting Description Comments Proportional 0 0 to 999 9 of 0 0 is ON OFF Control Band selected input Adjusted by Auto Tune range 4 0 T48 100 0 P48 Integral 0 to 9999 sec 0 is off This parameter does not Time 120 T48 appear if ProP 0 0 Adjusted 40 P48 by Auto Tune Derivative 0 to 9999 sec 0 is off This parameter does not Time 30 T48 appear if ProP 0 0 Adjusted 4 P48 by Auto Tune Alarm 1 999 to 9999 This parameter does not appear value 0 T48 if configured for heat 0 0 P48 Alarm 2 999 to 9999 value 0 48 0 0 48 This parameter does appear if configured for cool Access 0 to 250 code to 0 Unprotected Parameter To gain access to Unprotected Parameter Mode enter the same value for Code as used in parameter lockouts Does not Mode appear if zero is entered in code parameter lockout Returns to Brief display message while the Normal unit returns to Normal Display Display Mode Mode Model Number Dependent HIDDEN FUNCTION MODE The Hidden Function Mode is only accessible from the Normal Display Mode by pressing and holding the P button for three seconds These functions must first be unlocked in Configuration Module
85. e PID response figures with a step change to the process Make changes to the PID parameters in no more than 20 increments from the starting value and allow the process sufficient time to stabilize before evaluating the effects of the new parameter settings P ei Figure 33 Typical Response Curve PID Adjustments SP OVERSHOOT AND OSCILLATIONS INPUT TIME TO DAMPEN RESPONSE INCREASE PROPORTIONAL BAND INCREASE INTEGRAL TIME USE SETPOINT RAMPING USE OUTPUT POWER LIMITS AUTO TUNE WITH HIGHER DAMPENING CODE INCREASE DERIVATIVE TIME CHECK CYCLE TIME SLOW RESPONSE INPUT SP TO QUICKEN m TIME RESPONSE DECREASE PROPORTIONAL BAND DECREASE INTEGRAL TIME INCREASE OR DEFEAT SETPOINT RAMPING EXTEND OUTPUT POWER LIMITS RE INVOKE AUTO TUNE WITH A LOWER DAMPENING CODE DECREASE DERIVATIVE TIME Figure 34 Process Response Extremes 55 MANUAL TUNING FOR PID CONTROL In some unusual cases the Auto Tune function may not yield acceptable control results In this case the controller can be manually tuned to optimize the PID setting according to the process and the desired control requirements Manual Tuning Procedure A chart recorder or data logging device is necessary to measure the time between process cycles 1 Set the Proportional Band ProP from the Unprotected Parame
86. e feedback heater current is below the alarm value 2 Main control output O1 is off for a minimum of 600 msec and the feedback heater current is above 10 0 5 amp of the alarm value For heater ground faults the heater power circuit fuse opens The heater break alarm activates per condition one above This alarm is only useful for controller output cycle times CYCt of 10 seconds or more due to the minimum on and off times of alarm detection The heater break alarm value is usually set in the range of 50 to 80 of the nominal heater current This usually provides sufficient margin against false alarms that may occur from line voltage drops and normal heater aging Set the alarm value after observing the actual heater current readout Ifthe alarm 18 set for latching operation the controller delays alarm action an additional 1 second both on and off alarm detection This suppresses false alarm outputs in the event ofa brief power glitch in the heater circuit A latched heater break alarm requires manual reset If the alarm is set for auto reset non latching once past the 600 msec minimum dwell time the alarm triggers and releases immediately after the condition that caused the alarm clears Alarm Action Figures The alarm action figures describe the status of the alarm output and the front panel indicator for various over under temperature conditions The alarm output wave form is shown with the output in the automatic reset mode Note
87. e ramped at a controlled velocity to limit controller response to large setpoint changes Remote Local Setpoint Transfer Options trnF When switching between Local or Remote Setpoint the response of the controller can be programmed in a variety of ways These responses apply to changes in setpoint mode from the controller s front panel and User Input The table summarizes the responses for Setpoint transfer operations Local to Remote SPtr Parameter Remote to Local nor Output may bump Output may bump Auto No output bump Process No output bump Process error eliminated at rate of error eliminated at rate of integral action integral action trAC Output may bump Local setpoint assumes value of Remote setpoint tracks No Output bump Note In situations where an output bump may occur the setpoint ramp function SPrP can be used to reduce or eliminate bumping when switching between setpoints Heater Current Monitor Module 7 2 or 7 Optional Enter the full scale rating of the current transformers used with the T48 controllers This scales the Heater Current Monitor of the controller to indicate directly in amperes of heater current Hcur 0 0 to 999 9 amperes Alternatively the Heater Current Monitor may be scaled to indicate in percent of nominal heater current 0 0 to 100 0 This may be useful in applications employing several controllers each with nominal heater current readings that are different
88. e used for O1 heat and O2 cool outputs according to the combinations below O1 amp O2 VALID CONTROL MODES O1 MODE 02 MODE MANUAL CONTROL OUTPUT POWER RANGE O1 STATE O2 STATE PID 0 to 100 O1 TP ON OFF ProP 0 0 10096 O1 ON Any other setting O1 OFF PID PID 100 to 100 O1 TP PID ON OFF GAN2 0 0 0 to 100 1 100 0 O1 TP ON OFF ProP 0 0 ON OFF GAN2 0 0 100 1 100 O1 OFF Any other setting O1 OFF TP Time Proportioning 15 FRONT PANEL PROGRAMMING CHART FOR 148 amp P48 CONTROLLERS With Program Disable Active I PROTECTED PARAMETER MODE Bottom display Porameter amp Volues ProP Proportional Band 0 0 0n Off Intt Integral Time if ProP 0 0 dErt Derivative Time if ProP 0 0 AL 1 Alarm 1 Value AL 2 Alarm 2 Value Modify porameter Arrow buttons Enter chonge Advance to next P button D D Return to Normal Display D button If parameter was locked out in 3 LC it will be occessible after below Code CodE Enter programmed code from 3 LC to continue h Model number dependent Controllers with software revisions earlier than V4 0 this would be 7 5 7 HC NORMAL
89. egral Time The low OPLO and high output power limits in Output Parameter 2 OP are ignored when the controller is in Manual Control 47 CONTROL Single Output The controller operates in ON OFF Control when the Proportional Band is set to 0 0 In this control the process will constantly oscillate about the setpoint value The amount of ON OFF Control Hysteresis CHYS in Output Parameter Module 2 OP together with the process characteristics determines the period and amplitude of the oscillations Larger values of hysteresis increase both the amplitude and period of oscillations but also reduce the numberofoutputswitching cycles The Control Action OPAC in Output Parameter Module 2 OP can be set to reverse rEv for heating output on when below the setpoint or direct drct for cooling outputon when above the setpoint applications In controllers with operating system software revision earlier than V4 x the ON OFF Control Hysteresis value is not balanced around the setpoint value In these controllers the Hysteresis 15 totally added to the setpoint in reverse action and totally subtracted from the setpoint in direct action The revision number of the controller s operating system software is shown in the secondary bottom display during controller power up INPUT REVERSE ACTING SP 1 2 CHYS SP SP 1 2 CHYS 01 OFF ON OFF DIRECT
90. er 2 20 warm up 392 200 to 600 7 THERMOCOUPLE INPUT 148 only 3291021100 F Types E J K R 5 B N Linear mV Software selectable OHMS 1 0 to 320 0 Input Impedance 20 MQ all types Lead resistance effect 0 25 385 200 to 600 C 328 to 1100 F Cold junction compensation Less than 1 C 1 5 max error over 0 to 9 P48 RANGE AND ACCURACY 50 C max ambient temperature range Defeated for Linear mV indication mode Input Accuracy Accuracy Max m i 2 5 Impedance Continuous Resolution Resolution 1 for all types or 0 1 for T E J K and N only Range 18 to 28 C 0 to 50 C Overload WIRE COLOR ANSI BS 1843 200 to 400 C blue white 328 to 752 F red blue 200 to 750 C violet brown 328 to 1382 F red blue 200 to 760 C white yellow 328 to 1400 F red blue Accuracies are expressed as percentages after 20 minute warm up The 200 to 1250 C yellow brown controller s accuracy is specified in two ways Accuracy over an 18 to 328 to 2282 F red 28 C range at 10 to 75 RH environment and accuracy over 0 to 50 C 0 to 1768 C black i range at 0 to 85 RH non condensing environment Accuracy over the 32 to 3214 F red wide sensor range reflects the coefficient of the internal circuitry 0 to 1768 C black i 10 USER INPUT Internally pulled up to 5 VD
91. eration sequence 42 INPUT ALARM MODE ABSOLUTE LOW ACTING W AUTO RESET SHOWN ALARM VALUE UNIT TIME STANDBY OFF ON ENABLED OFF ON STANDBY DISABLED Figure 18 Alarm Standby Delay Sequence Alarm Value AL 1 AL 2 The alarm values are either absolute absolute alarms or relative to the setpoint value deviation and band alarms An absolute alarm value is the value that is entered A relative alarm value is offset from the temperature setpoint value by the amount entered and tracks the setpoint value as it is changed AL 1 and AL 2 999 to 9999 If the alarm action is set as a Band Alarm then only a positive value can be entered Alarm Hysteresis AHYS The alarm value s have a programmable hysteresis band to prevent alarm output chatter near the alarm trigger point The hysteresis value should be set to eliminate this effect A value of 2 to 5 is usually sufficient for most applications A single alarm hysteresis value applies to both alarms See the Alarm Action Figures page 40 for the effect of hysteresis on the various alarm types 5 1 to 250 Cooling Parameters Module 5 02 Optional The cooling output 02 15 software selectable with dual alarm models For the P48 this is referred to as the Second Control Output This output operates as an independent cooling output for systems that use heating and cooling To enter the C
92. erial Communications If problems are encountered when interfacing the controller s and host device or printer the following check list can be used to help find a solution 1 Check all wiring Proper polarity of all devices on the serial loop must be observed Refer to previous application examples 2 Check the controller s communication format in module 6 SC Make sure all devices on the serial loop are configured with the same communication format 3 Check the requesting device constructed command string format 4 When sending commands to the controller an asterisk or dollar sign must terminate the command Make sure a carriage return or line feed does not follow the command terminator 5 Check the controller s unit address in module 6 SC It should be zero if the address command is not used in the command string for single controller configurations In multiple controller configurations make sure each controller has a unique unit address 6 Initiate transmissions from the controller by programming the User Input for PrNt in module 1 IN for print and programming module 6 SC at PoPt set INP input to YES As long as the user input is connected to common controller data will be sent 7 With two way communications or multiple controller configurations make sure only one device is communicating at a time 8 If all of the above has been done try reversing the polarity of the serial wires at host device or
93. erminals 13 and 14 2 In Remote Setpoint Input Module 7 configure input signal InP and display value dSP to 0 00 Configure input signal InP2 and display value dSP2 to 20 00 3 Compare the readout in the secondary main display to the current source over the range 0 20 mA The tolerance is 0 2 of full scale LSD 4 Calibrate Remote Setpoint Input if readings are out of tolerance Heater Current Input Check T48 only 1 Connect an AC current source with an accuracy of 0 1 or better Apply a 100 mA signal to terminals 13 and 14 2 In Heater Current Input Module 7 HC Configure HCur for 100 0 3 The readout in the secondary main display should be 100 0 The tolerance is 1 0 of full scale LSD 4 Calibrate Heater Current Input if readings are out of tolerance Error Flag E CL If error flag E CL appears at power up loss of calibration parameters due to noise spikes has occurred Entering code 77 twice in Factory Service Operations Module 9 FS erases the controller calibration values and defaults the values to nominal settings Reading errors of 10 may result It is recommended that the controller be fully re calibrated If using thermocouple only the RTD calibration need not be performed Note The flag may be cleared by stepping through cold junction or linear output calibration procedures without the need to change any calibration values 10 reading error will still
94. f FS 1 2 LSD 0 30 of FS 1 2 LSD 500 ohm max 1 3500 4 to 20 mA 0 10 of FS 1 2 LSD 0 30 of FS 1 2 LSD 500 ohm max 1 2800 Accuracies are expressed as percentages after 20 minute warm up Output accuracy is specified in two ways Accuracy over an 18 to 28 C range at 10 to 75 RH environment and accuracy over a 0 to 50 C range at 0 to 85 RH non condensing environment Accuracy over the wide signal range reflects the coefficient of the internal circuitry Outputs are independently jumper selectable for either 10 V or 20 mA The output range may be field calibrated to yield approximate 10 overrange and a small underrange negative signal 16 REMOTE SETPOINT INPUT optional Input type 0 4 to 20 mA Input Resistance 10 ohms Overrange 5 to 105 Overload 100 mA continuous Scale Range 999 to 9999 degrees or 99 9 to 999 9 degrees Resolution 1 part in 10 000 Accuracy At 25 C 0 1 of full scale 1 2 LSD Over 0 to 50 C range 0 2 of full scale 1 2 LSD Reading Rate 10 sec Setpoint Filtering Programmable Digital Setpoint Ramping Programmable 0 1 to 999 9 degrees minute 17 HEATER CURRENT MONITOR INPUT 748 only optional Single phase full wave monitoring of load currents controlled by main output 01 Input 100 mA AC output from current transformer RLC CT004001 or any CT with 100 mA AC output Display Scale Range 1 0 to 999 9
95. from each other In this case each controller be scaled to indicate the same reading 100 0 independent of each controller s actual heater current For example if using a 50 ampere current transformer and the actual maximum heater current is 38 amperes the Heater Current Monitor scaling value is 50 0 Amperes 38 0 Amperes This scaling value results in a Heater Current Monitor indication of 100 0 at an actual heater current of 38 amperes See Alarm Action page 39 to program a heater break alarm Heur x 100 0 131 6 46 Second Linear DC Analog Output Module 8 A2 Optional The Second Linear DC Analog Output provides retransmission of the conditioned and scaled input signal independent of the Main Linear DC Output Second Linear DC Output Range A2tP Select the type of output range 0 10 0 to 10 V 0 20 0 to 20 mA 0 40 4 to 20 mA The linear DC output range jumper must be set to match the range selected See Linear DC Output Jumper Selection page 12 The linear DC output can be re calibrated to provide up to 5 of over range operation See Linear DC Output Calibration page 71 for more details Second Linear DC Output Scaling Points A2LO A2HI The output can be scaled based on the controller s input display by use of low and high scaling parameters Reverse acting output is possible by reversing the scaling points Factory Service Operations Module 9 FS The Factory Service Operations include con
96. h minimum overshoot OPERATION REVERSE ACTING INPUT 1 SETPOINT CHYS CONTROL POINT 4 CHYS AUTO TUNE COMPLETE PID AUCUNE SETTINGS ARE CALCULATED AND LOADED INTO MEMORY TIME PHASE Aut Aut2 Aut3 Aut4 DISPLAY MODES 01 STATUS 01 0 01 O1 ON 01 Figure 29 Auto Tune Operation The following controller parameters are automatically adjusted by Auto Tune according to the characteristics of the process Proportional Band ProP Integral Time Intt Derivative Time dErt Input Filter Fltr Output Power Dampening OPdP Asshown in Auto Tune Operation Figure 29 Auto Tune Operation cycles the process at a control point 3 4 of the distance between the current process value at the instant Auto Tune is started and the setpoint 3 4 control point was selected to reduce the chance overshoot at setpoint when Auto Tuning at start up If Auto Tuning from setpoint and overshoot is unacceptable temporarily lower the setpoint by an amount of the oscillation andthen Auto Tune Resetthe setpointto the original value when Auto Tune is complete After starting Auto Tune the secondary display indicates the current phase Autl Aut2 Aut3 amp Aut4 If the controller remains Auto Tune phase unusually long the process or connections may be faulty Additionally during Auto Tune it is important that disturbances to
97. he reading is with the main output switched on The output status register is not synchronous in time with heater current register Output Status W The Output Status register indicates the present status of the controller s discrete alarm outputs coils This is a read only register The controller responds with OST followed by a field consisting of 4 bytes The bytes represent the status of the outputs in the following order main output O1 cooling secondary output 2 alarm 2 output 2 alarm 1 output 1 When the output is on the corresponding byte is 1 When the output is off the corresponding byte is 0 Communication Format Data is transferred from the controller over a serial communication channel In serial communications the voltage is switched between a high and low level at a predetermined rate baud rate using ASCII encoding The receiving device reads the voltage levels at the same intervals and then converts the number back to a character The table lists the required voltage levels at the receiver for RS485 interface RS485 a b 200 mV a b gt 200 mV Interface State mark idle space active Data is transmitted one byte at a time Each ASCII character is framed with a beginning start bit an optional error detection parity bit and one or more ending stop bits LE Star bolbi b2 bs Da bs bs 7 doto op Stop DLE parity 15 LE Sta
98. ified rEd Read only Ent Entry lower display content possibilities SP Setpoint Value OP Output Power dEv Setpoint Deviation UdSP Temperature Units T48 bdSP Blank Display P48 Heater Current Readout D Models equipped with Heater Current Option replace DEv readout with Hcur Heater current readout Deviation Note If a parameter is active in the lower display and is then subsequently locked out press D once in the Normal Display Mode to remove it from the display Protected Mode Lockouts CodE Pld and AL The protected mode is active when program disable is active The parameters in the protected mode can be set for one ofthe following modes LOC Lockout Prevents the parameter from appearing in the protected mode rEd Read only Parameter appears but cannot be modified 38 Ent Entry Parameter appears and can be modified The code number allows access to the unprotected mode To enter the unprotected mode from the protected mode the code number entered must match the code number entered here See Front Panel Program Disable page 17 for a description of the various program access levels Oto 250 Pld Permits access to the main PID parameters AL Permits access to the alarm value s Hidden Mode Lockouts ALrS SPSL trnF and tuNE The hidden mode is accessible from the Normal Display Mode by pressing
99. ithout excessive overshoot Operation of the controller can be transferred to manual mode providing the operator with direct control of the output The controller may also be programmed to operate in the ON OFF control mode with adjustable hysteresis Dual 4 digit displays allow viewing of the process temperature and setpoint simultaneously Front panel indicators inform the operator of the controller and output status The control output and the alarm outputs are field replaceable on select models Optional alarm s can be configured to activate according to a variety of actions Absolute HI or LO Deviation HI or LO Band IN or OUT and Heater Current Break with adjustable hysteresis A standby feature suppresses the alarm during power up until the process stabilizes outside the alarm region Optional Main Linear DC output 10 V and 20 mA can be used for control or retransmission purposes Programmable output update time reduces valve or actuator activity The output range can be scaled independent of the input range Optional Second Linear DC output 10 V or 20 mA provides an independent process retransmission while the main Linear DC output is being used for control The output range can be scaled independent of the input range The T48 optional Heater Current Monitor provides a direct readout of process heater current An alarm can be programmed to signal when the heater has failed This provides early warning of system failure before pro
100. l Communications Module 6 SC Optional Unless controller serial configurations match those of the host communicating device front panel serial parameter changing is needed for communication Baud rate and character frame must be the same as the other communicating device The controller address is the unique node address for multiple controllers applications See Serial Communications Interface page 58 for further explanations Baud Rate bAUd The available baud rates are 300 600 1200 2400 4800 or 9600 Character Frame Format ConF The character frame can 701 7 1 7n2 8n1 Controller Address Number Addr Multiple controllers connected the same RS485 interface line must each have a different address number A value of 0 does not require the address specifier command when communicating with the controller The address numbers range from 0 to 99 Abbreviated or Full Transmission Abrv When transmitting data the controller can be programmed to suppress the address number mnemonics units and some spaces by selecting YES An example of abbreviated and full transmission are shown below 65 123 8F lt CR gt lt LF gt Full Transmission YES 123 8 lt CR gt lt LF gt Abbreviated Transmission Print Options PoPt Selecting YES for the print options allows the operator to scroll through the available options using the P button The up and down arrow keys toggle between yes and no
101. l Number Dependent Only appears if locked out from Normal Display Mode Brief display message while the unit returns to Normal Display Mode PROTECTED PARAMETER MODE The Protected Parameter Mode is accessed by pressing the P button from the Normal Display Mode with Program Disable active While in this mode the parameters can be accessed by pressing the P button The temperature or scaled process value after initial setup will be displayed in the main top display The parameter display will appear with the corresponding range and units in the secondary bottom display Each of these parameters can be independently locked out from appearing or from being modified through the Lockout Parameter 3 LC To modify values use the Up or Down arrows while the parameter is displayed If locked the parameter will not show in the Normal Display Mode but can be changed in the Protected Parameter Mode The controller responds to the new values immediately however the change is not committed to non volatile memory until the controller is returned to the Normal Display Mode If power loss occurred before returning to the Normal Display Mode the new values must be entered again To gain access to the Unprotected Parameter Mode with User Input inactive or not programmed for PLOC continue to CodE and press the arrow buttons until the value equals the Code as entered in parameter lockouts When an incorrect code value is entered or when th
102. l respond to transmit commands by sending their address followed by the requested data Read Register Code The Read Register command is used to read data from a register This command must be followed by a Register ID character In full response mode the controller responds to this command by transmitting its Address if greater than 0 corresponding register mnemonic and register data In abbreviated response mode the controller transmits data only The response time to this command is controlled by the type of termination character This is a single register response Write Register Command Code V The Write Register command is used to write data to a register This command must be followed by a Register ID character and Numeric Data A unique command line is required for each register write operation No response occurs for invalid write operations The Read Register command T can be used for readback verification Reset Alarm Command Code R The Reset Alarm command resets the alarm outputs This command must be followed by a Register ID character G for Alarm 1 and H for Alarm 2 This command does not alter the actual alarm mode or value setting Control Action Command Code C The Control Action command is used to affect certain controller operating modes The registers used with this command are Auto Manual mode select Auto Tune mode select and Remote Setpoint mode select After the Register ID character ei
103. larm 2 is not configured as cooling output in Alarm Module 4 AL Cooling output for the P48 is referred to as the second control output Display Parameter Range and Units Factory Setting Description Comments CYC2 Cooling output cycle time 0 to 250 sec 2 0 turns O2 off GAN2 Relative cooling gain 0 0 to 10 0 1 0 0 0 places cooling output into ON OFF Control and db 2 becomes hysteresis value Heating or cooling overlap deadband 999 to 9999 0 Positive value is deadband Negative value is overlap If 2 0 this parameter is cooling ON OFF Control hysteresis Change to Factory Setting prior to Auto Tune 26 Configure Module 6 Serial Communications 6 5 Controller returns to configuration access point CnFP NO ifRS485 serial option is not installed Display Parameter Range and Units Factory Setting Description Comments bAUd Baud rate 300 to 9600 9600 Baud rate of unit must match connected equipment Character Frame format 701 7E1 7n2 8n1 701 7 data odd parity 1 stop was odd 7 data even parity 1 stop was even 7 data no parity 2 stop was none 8 data no parity 1 stop Controller address 0 to 99 0 For multiple unit applications each unit must have a unique node address Abbreviated or full transmission yes no no Selecting yes the controller does
104. n If changed be sure to check all parameters Digital Input Filtering and Display Update Rate FLtr Select the relative degree of input signal filtering and display update rate The filter is an adaptive digital filter that discriminates between measurement noise and actual process changes Therefore the influence on 31 step response time is minimal If the signal is varying too greatly due to measurement noise increase the filter value Additionally with large derivative times control action may be too unstable for accurate control Increase the filter value Conversely if the fastest controller response is desired decrease the filter value The Auto tune procedure sets the filter value appropriate to the process characteristics Also see Output Power Dampening parameter OPdP page 36 for filtering the output Fltr 0 to 4 0 least input filtering 3 most input filtering 4 most input filtering and slower 500 msec display update rate outputs update at 100 msec rate Input Sensor Correction Constant SHFt If the controller temperature disagrees with a reference temperature instrument or ifthe temperature sensor has a known calibration the controller temperature can be compensated by a correction offset SHFt SHFt 999 to 9999 The following equation expresses the relationship Desired Display Temp Controller Temp SHFt Example 1 The controller reads 293 F while a reference instrument indicates 300 F
105. n 150 to terminals 8 9 amp 10 2 Configure Input Parameters Module 1 for linear ohms rLIn input under tYPE 3 Compare the controller read out with the RTD simulator at various points over the range 1 0 to 300 0 ohms tolerance is 0 3 ofspan X 1LSD 4 Calibrate the controller RTD ohms if out of tolerance 69 Voltage Check P48 1 Connect a DC voltage source with an accuracy of 0 1 or better Apply a0 to 10 V signal to terminals 8 amp 9 2 In Input Module 1 configure input signal InP1 and display value dSP1 to 0 00 Configure input signal InP2 and display value dSP2 to 10 00 3 Compare the controller readout to the voltage source over the range 0 10 V The tolerance is 0 3 of reading 0 03 V 4 Calibrate the controller if the readings are out of tolerance Current Check P48 1 Connect a DC current source with an accuracy of 0 196 or better Apply a 0 to 20 mA signal to terminals 8 amp 10 2 In Input Module 1 configure input signal InP1 and display value dSP1 to 0 00 Configure input signal InP2 and display value dSP2 to 20 00 3 Compare the controller readout to the current source over the range 0 20 mA The tolerance is 0 3 of reading 0 04 mA 4 Calibrate the controller if the readings are out of tolerance Remote Setpoint Input Check T48 and P48 1 Connecta DC current source with an accuracy of 0 0396 or better Apply a 0 to 20 mA signal to t
106. n Linear DC Update Time ANUt Optional To reduce excess valve actuator or pen recorder activity the update time ofthe linear output can be set over the range of 0 1 to 250 seconds A value of 0 seconds results in an update time of 0 1 second Main Linear DC Output Scaling Points ANLO ANHI Optional The output is scaled based on the Output Source ANAS display by use of low and high scaling parameters Reverse acting output is possible by reversing the scaling points ANLO Display value that corresponds to 0 V 0 mA 4 mA as selected ANHI Display value that corresponds to 10 V or 20 mA as selected Lockouts Parameter Module 3 L C The controller can be programmed to limit operator access to various parameters control modes and display contents The configuration of the lockouts is grouped into three sections Lower Display Lockouts Protected Mode Lockouts and Hidden Mode Lockouts Lower Display Lockouts SP OP dEv Hcur UdSP and bdSP The contents of the secondary display can be changed in the Normal Display Mode by successively pressing the D button This action scrolls through the possible display parameters when enabled If all parameters are set to lock LOC press D to blank the display The parameters can be set for one of the following LOC Lockout Prevents the parameter from appearing in the secondary display Parameter appears but cannot be modified Parameter appears and can be mod
107. n Mode INP2 Remote Setpoint Input Value 2 rSt2 Alarm 2 Reset Mode FLtr Remote Setpoint Filter Time Constant Stb2 Alarm 2 Standby Enabled bAnd Remote Setpoint Filter Band AL 2 Alarm 2 Value trnF Local Remote Transfer Options ind Aarm Hysteresis value CONFIGURE HEATER CURRENT INPUT 7 HC 7 n2 CONFIGURE COOLING 5 02 MNEMONIC PARAMETER USER SETTING MNEMONIC PARAMETER USER SETTING Heater Current Readout Scaling 2 02 Output Cycle Time CONFIGURE SECOND LINEAR OUTPUT 8 A2 GAN2 Relative Cooling Gain MNEMONIC PARAMETER USER SETTING db 2 Heat Cool Overlap Deadband A2tP Second Linear Output Range A2LO Second Linear Output Low Value A2HI Second Linear Output High Value 30 CONFIGURATION PARAMETER EXPLANATIONS Input Parameter Module 1 IN T48 Models The controller has several input set up parameters that must be programmed prior to setting any other controller parameters Input Type tYPE Select from the list of various thermocouple and RTD sensors The following is a list of the possible sensors tc t Type T TC tc E Type E TC tc J Type J TC tc k Type K TC tc r Type R TC tc S Type S TC tc b Type B TC tc N Type N TC LIN Linear mV display r385 385 curve RTD r392 392 curve RTD rLIN Linear ohms display Temperature Scale SCAL Select either degrees Fahrenheit F or degrees Celsius C If changed be sure to check all parameters Temperature Resolution dCPt Select either 1 or 0 1 degree resolutio
108. n be interrogated or changed alarm output s reset and Auto tune invoked Since the same pair of wires are used for both transmit and receive only one way communication is possible at a time The controller has a variable response time to allow the host device adequate time to release the communication line after issuing a command to the controller Configuration Software The Serial communications option is necessary to work with Red Lion Control s Windows based SFCRM software This software allows for easy controller parameter configuration by computer These settings can be saved to a disk file for later use or used for multi controller down loading On line help is provided within the software Controller Configuration The controller s serial communication format is configured in Serial Communication Program Module 6 SC using the front panel Baud rate and character frame must be matched to the other communicating device The node address parameter is a unique address number assigned to each slave unit on the bus Sending Commands And Data When sending commands to the controller a command string of ASCII characters must be constructed The string varies in length depending on the nature of the command At most a command string consists of a Controller Node Address number not required for address of 0 a Command Code character a Register Identification character for most commands Numerical Data if writing data to the contr
109. n in the secondary bottom display during controller power up ps HEAT COOL DEADBAND db 2 0 SP 4 1 2 CHYS SP CHYS SP 1 2 CHYS Output 1 01 OFF ON OFF Output 2 02 ON OFF ON Figure 24 01 02 ON OFF Control Software Revision V4 0 or Later 49 24 HEAT COOL DEADBAND 45 2 0 SP CHYS 5 5 1 Output 1 01 _ OFF OFF Output 2 02 ON OFF ON Figure 25 01 02 ON OFF Control Software Revisions V3 x or Earlier 5 5 5 5 INPUT HEAT COOL DEADBAND db 2 gt O 1 2 db 2 1 2 CHYS SP 1 2 db 2 1 2 db 2 1 2 CHYS 5 1 2 db 2 1 2 CHYS SP 1 2 db 2 1 2 db 2 1 2 CHYS Output 2 02 02 OFF 02 02 OFF input HEAT COOL DEADBAND 45 2 gt 0 SP 00 2 CHYS SP CHYS SP db 2 Output 2 02 02 02 OFF 02 ON 02 5 5 5 5 INPUT HEAT COOL DEADBAND db 2 lt 0 1 2 db 2 1 2 CHYS SP 1 2 db 2 1 2 db 2 1 2 CHYS 1 2 db 2 1 2 CHYS SP 1 2 db 2 1 2 db 2 1 2 CHYS Output 1 01 Output 2 02 02 ON 02 OFF 02 ON input HEAT COOL DEADBAND db 2 lt 0 SP CHYS SP db 2 CHYS sP SP db 2 l Output 1 01 OFF ON Output 2 02 02 02 OFF 02 ON 02 OFF Figure 26 01 02 ON OFF Control Software
110. nding on system resolution If a heat cool overlap is specified the displayed percent output power is the sum of the heat power O1 and the cool power O2 45 2 999 to 9999 43 When the Cooling Relative Gain is set to zero for ON OFF Control mode this parameter should only be set to a positive value or zero The Heat Cool Operation Figures illustrate the effects of different deadbands 2X PROPORTIONAL BAND 02 100 1 01 100 OUTPUT POWER TEMPERATURE HEAT COOL SETPOINT Figure 19 Heat Cool Operation db 0 DEADBAND POSITIVE VALUE RELATIVE GAIN 2 100 OUTPUT POWER TEMPERATURE RELATIVE GAIN 5 COOL SETPOINT Figure 20 Heat Cool Operation db gt 0 When using the cooling output observe the controlled temperature characteristics If the temperature remains above setpoint with a sluggish return increase the cooling gain Similarly if the temperature drops too sharply withan overallsaw tooth pattern decrease the cooling gain Alterthe heat cool overlap until a smooth response in the controlled temperature is observed during band transition DEADBAND NEGATIVE VALUE es RELATIVE 01 02 100 ANE 5 10 OUTPUT POWER I TEMPERATURE RELATIVE 5 Ls COOL SETPOINT Figure 21 Heat Cool Operation db lt 0 Seria
111. ne command Description Read Value Transmit Write Value Change Reset Alarm Control Action Print Block Request Register Identification Table Register ID Register Parameter Applicable Command Abbreviation Mnemonic Numeric Data Range Engineering Units A Input T T48 TMP P48 INP 999 to 9999 T48 For C P48 Blank Setpoint TV SET 999 to 9999 T48 For C P48 Blank Output power T V manual mode only PWR 99 9 to 100 0 Proportional 0 0 999 9 Integral T V INT 0 to 9999 Derivative TV DER 0 to 9999 Alarm 1 T V R AL1 999 to 9999 Alarm 2 T V R 999 to 9999 Deviation 999 to 9999 Power Offset T V auto OFP 99 9 to 999 9 Setpoint Ramp mode only TV RMP 0 to 9999 Cooling Gain CRG 0 0 to 10 0 Cooling Offset CDB 999 to 9999 Remote Setpoint RSP 999 to 9999 Heater Current HCF or 0 0 to 999 9 A Auto Manual 1 Auto 2 Manual Blank Auto tune 1 Start 2 Stop Blank Local Remote 1 Local 2 Remote Blank Output Status 0000 to 1111 Blank 59 Terminator Table Character Description Comments Command Terminator Slow response 100 to 200 msec setpoint saved t
112. ng increments of 10 20 50 and 100 may also be used to add dummy zeroes to the scaled readings as desired 100 The rounding increment is for the controller s display only and does not affect improve or degrade the control accuracy of the unit 33 Digital Input Filtering and Display Update Rate FLtr Select the relative degree of input signal filtering and display update rate The filter is an adaptive digital filter that discriminates between measurement noise and actual process changes Therefore the influence on step response time is minimal If the signal is varying too greatly due to measurement noise increase the filter value Additionally with large derivative times control action may be too unstable for accurate control Increase the filter value Conversely if the fastest controller response is desired decrease the filter value The Auto tune procedure sets the filter value appropriate to the process characteristics See Output Power Dampening parameter OPdP page 36 for filtering the output Fltr 0 to 4 0 least input filtering 3 most input filtering 4 most input filtering and slower 2 sec display update rate outputs update at 10 sec rate Scaling Points Prior to installing and operating the controller it may be necessary to change the scaling to suit the display units particular to the application Although the unit has been programmed at the factory the scaling will generally have t
113. nt Lower Limit 999 to 9999 0 or 0 1 degree 0 Set low limit below high limit Setpoint Upper Limit 999 to 9999 1 or 0 1 degree 9999 Set high limit above low limit Setpoint Ramp Rate 0 0 to 999 9 degrees minute 0 0 0 0 is off no ramping User Input Model Number Dependent PLOC Program disable ILOC Integral action on off trnF Auto manual select SPrP Setpoint ramp on off ALrS Reset alarm output s SP2 Select SP1 SP2 rSP Select Local Remote PrNt Serial block print Low lock Low off Low manual Low end ramp Low reset Low SP2 Low remote Low block print Configure Module 1 Input Parameters 1 1 P48 These tables are only used for programming the P48 models Use the tables on page 21 if you are programming a T48 Display Parameter Range and Units Factory Setting Description Comments tYPE Input Type Voltage Curr Current Curr Decimal Point 0 0 0 0 00 or 0 000 0 0 If 0 000 is selected scaling points must be a positive value Rounding Increment 1 2 5 10 20 50 or 100 0 1 Used in conjunction with filtering to stabilize the display reading Digital Input Filtering And Display Update 0104 1 Increase number more filtering effect 4 500 msec display update rate Adjusted by Auto Tune Scaling Point 1 Display Value 999 to 9999
114. number allows access to OR unprotected parameter mode and User Input not configuration modules programmed for PLOC Note universal code number 222 be entered to gain access to the unprotected mode and configuration modules independent of the programmed code number UNPROTECTED Unprotected Parameter Mode is accessed pressing the P button from the Normal Display Mode with Program Disable inactive While in this mode the operator has access to the most commonly modified controller parameters by pressing the P button The temperature or scaled process value is displayed in the main top display The parameter display willappear with the corresponding range and units in the secondary bottom display To modify values use the Up or Down arrows while the parameter is displayed The controller responds to the new values immediately however the change is not committed to non volatile memory until the controller is returned to the Normal Display Mode If power loss occurred before returning to the Normal Display Mode the new values must be entered again To gain access to the Configuration Parameter Modules continue to CnFP and press the Up arrow These modules allow access to the fundamental set up parameters of the controller When the program list has been scrolled through or the D button is pressed the controller displays End and returns to the normal display mode The unit
115. o match Main Linear DC Output Source OP InP SP OP SP Active Setpoint Main Linear DC Output Update 0 to 250 secs 0 0 Update rate of 0 1 sec Main Linear DC Output Low Scaling Value 999 to 9999 0 0 Value depends on ANAS assignment Main Linear DC Output High Scaling Value Model Number Dependent 999 to 9999 100 0 Value depends on ANAS assignment Configure Module 3 Lockout Parameters 3 1 Display Parameter Range and Units Factory Setting Description Comments Setpoint access LOC lockout rED read only Ent enter Ent Determines access to temperature setpoint Output power access LOC lockout rED read only Ent enter Ent Determines direct access to output power P indicator illuminates when parameter is selected in display Deviation display access LOC lockout rEd read only rEd Determines display of deviation DV indicator illuminates when parameter is selected in display Does not appear if heater current option is installed Heater current display access T48 only LOC Lockout rEd read only rEd Determines heater current readout DV indicator Illuminates when selected Units display access For T48 LOC lockout rEd read only rEd Determines display of F or C Blank display access For P48 LOC lockout rEd read only rE
116. o E PROM Command Terminator Fast response 2 to 100 msec setpoint not saved to E PROM Examples of Command Strings Example Write 10 0 to Setpoint register with a controller address of 2 Command String N2VB100 Explanation Address 2 Command V Register ID B Numeric Data 100 Terminator with setpoint will not be saved to Example Read input register of controller with an address of 3 Command String N3TA Explanation Address 3 Command T Register ID A Terminator Example Reset Alarm Output 1 of controller with an address of 0 Command String RG Explanation Address not used for address 0 Command R Register ID G Terminator Example Write to Auto Tune control register start Auto Tune on controller with an address of 5 Command String NOSCT1 Explanation Address 5 Command Register ID T Numeric Data 1 start Terminator Command Code Explanations Controller Node Address N When more than one controller is on the serial communication bus a unique controller node address must be assigned to each unit The address range extends from 0 to 99 This is defined in the controller configurations To communicate with a specific controller the address code N followed by the controller s address value must start a command string A controller with an address of 0 does not require the node address command Controllers with an address greater than 0 wil
117. o be changed The controller is unique in that two different scaling methods are available The two scaling procedures are similar in that the operator keys in the display values and either keys in or applies a DISPLAY signal value that corresponds to those scaling points The location of the scaling points should be near the process end limits for the best possible accuracy 100 0 Once these values are 0 0 programmed coordinates on a INPUT h the indicator calculates the graph 4 00mA 20 00mA slope intercept of the signal display graph automatically INP1 4 00 INP2 20 00 span zero interaction occurs 0 0 DSP2 100 0 making scaling a one pass exercise Figure 14 Scaling Points Before programming the indicator it is advised to organize all the data for the programming steps to avoid possible confusion To scale the indicator two signal values and two display values that correspond to the signal values must be known These four values are used to complete the scaling operation An example is listed below Scaling Point 1 Scaling Point 2 0 0 4 00 mA amp 100 0 20 00 mA Reverse acting indication can be accomplished by either reversing the two signal points or the display value points but not both If both are reversed then forward normal acting indication will occur In either case do not reverse the input wires to correct the action Display Values dSP1 amp dSP
118. of units is 1 96 49 8 mm This spacing is the same for vertical or horizontal stacking Note When stacking units provide adequate panel ventilation to ensure that the maximum operating temperature range is not exceeded 1 96 49 8 S MIN j STANDARD PANEL CUT OUT IF NEMA 4 IS NOT REQUIRED THIS PANEL MATERIAL MAY BE REMOVED Figure 3 Multiple Unit Stacking Horizontal Arrangement Caution Disconnect power to the unit and to the output control circuits to eliminate the potential shock hazard when removing the bezel assembly UNIT REMOVAL PROCEDURE To remove a unit from the panel first loosen the panel latch screws Insert flat blade screwdrivers between the latch and the case on either side of the unit so that the latches disengage from the grooves in the case Push the unit through the panel from the rear REMOVING BEZEL ASSEMBLY The bezel assembly shown in Figure 2 must be removed from the case to replace the output board To remove the bezel assembly insert a flat blade screwdriver into the pry slot on either side of the unit Twist the screwdriver handle until the unit is ejected enough to allow removal 3 Figure 2 Bezel Assembly Caution The bezel assembly contains electronic circuits that can be damaged by static electricity Before removing the assembly discharge static charge on your body by touching an earth ground point It is also important that the
119. oller and ending with a string Terminator of or The controller will not respond with an error message to invalid commands 58 Sending Numeric Data Data written to individual registers must be limited to the registers numerical data range See Register Identification Table If more digits are sent the controller only accepts the last four digits of the numeric data Negative numbers must have a minus sign The controller ignores any decimal point and conforms the number to the register identification resolution Example 25 is written to the proportional band register The value recorded by the register is now 2 5 Ifa value of 25 is intended write value of 25 0 or 250 Controller Node Address Description Comments Controller Node Address Specifier Target a specific controller with the next Command Must be followed by a one or two digit 0 99 controller node address number Not required for a node address of 0 Commands Table Comments Read value register command Must be followed by Register ID character A M BB HC or W Write value register command Must be followed by Register ID character B H or J M and appropriate Numeric Data Write alarm register command Must be followed by Register ID character G or H Write control register command Must be followed by Register ID character S U with Numeric Data of 1 or 2 Read block register command Allows multiple reads with o
120. om model to model Refer to the Rear Terminal Assignment Tables or the label on the controller for the terminal numbers corresponding to the model being wired Relay Connections To prolong contact life and suppress electrical noise interference due to the switching of inductive loads it is good installation practice to install a snubber across the contactor Follow the manufacturer s instructions for installation Note Snubber leakage current can cause some electromechanical devices to be held ON Relay Outputs Type Form A Rating 3 Amps 250 VAC or 30 VDC resistive load 1 10 HP 120 VAC inductive load Life Expectancy 100 000 cycles at maximum load rating Decreasing load and or increasing cycle time increases life expectancy 3 AMPS __ u 250 vac LOAD FUSE CONTROLLER AC DC POWER Figure 7 Relay Output Logic SSR Connections 748 only Logic SSR Drive Output Rating 45 mA 4 V min 7 V nominal current limited 7 VDC UNREG FUSE SSR ACI p x NOT POWER ISOLATED g N UNIT ac POWER CONTROLLER LOAD Figure 8 Logic SSR Output Triac Connections T48 only Triac Outputs Type Isolated Zero Crossing Detection Rating Voltage 120 240 VAC Max Load Current 1 Amp 35 C 0 75 Amp 50 C Min Load Current 10 mA Offstate Leakage Current 7 mA max 60 Hz Operating Frequency 20 to 500
121. ontroller during abnormal process conditions Figure 39 Plastics Extruder Application shows one such zone 120V COOLING COOLING EXTRUDER WATER SUPPLY b 2ND INPUT OPTION IN IN 0 USER 240 HEATER es TC RTD POWER E 85 250 ALARM Figure 39 Plastics Application 67 48 Water Processing Application Process Requirements A city water company needs to maintain a steady flow of water for their Unprotected Parameters customer needs They have an existing 0 to 10 VDC flow transmitter to ProP Calculated Auto Tune measure the water flow They need to control the water flow have a high and Intt Calculated Auto Tune low alarm and keep arecorded chart of the flow for later reference The Main dErt XX Calculated by Auto Tune Linear DC output of the P48 is used to control the position of water value to AL 1 90 0 High alarm maintain the desired flow setpoint value The P48 relay outputs are AL 2 20 0 Low alarm programmed to give a high flow alarm and a low flow alarm With the Second 1 IN Configure Input Parameters Linear DC output model the flow measurement to the P48 can be tYPE VOLt Voltage Input retransmitted to a chart recorder dCPt 00 Resolution F
122. ooling Output Module the cooling output of the controller must first be selected in Alarm Module 4 AL When cooling is selected alarm 2 is used for the cooling output The front panel indicator A2 illuminates when the cooling output O2 is on Cooling output power is defined as ranging from 100 full cooling to 0 no cooling unless a heat cool band overlap is used See Output Power Limits in Module 2 for maximum and minimum settings The same PID values control both heat and cool Cooling Output Cycle Time CYC2 A value of 0 turns off the cooling output independent of cooling power demand 2 0 to 250 seconds Cooling Relative Gain GAn2 This parameter defines the gain of the cooling band relative to the heating band A value of 0 0 places the cooling output into ON OFF Control mode with the ON OFF Control Hysteresis CHYS in Output Parameter Module 2 OP becoming the cooling output hysteresis This may be done independent of the main output control mode PID or ON OFF Relative gain is generally set to balance the effects of cooling to that of heating for best control Figures 19 20 amp 21 Heat Cool Operation illustrate the effect of different gains GAN2 0 0 to 10 0 Heat and Cool Overlap Deadband db 2 This parameter defines the area in which both heating and cooling are active negative value or the deadband area between the bands positive value The parameter units are degrees or tenth s of degrees depe
123. ot appear For P48 heat is main control output Alarm 1 reset mode Auto automatic LAtc manual reset Auto Manual reset via Hidden Mode or user Alarm 1 standby function delay yes no no input Power up standby delay Alarm 1 value 999 to 9999 0 T48 0 0 P48 If band alarm action then only a positive value can be entered Alarm 2 action mode A HI absolute high A LO absolute low d HI deviation high d LO deviation low b IN band inside b ot band outside CooL cooling output Hcur heater current If changed check alarm values If cooling is selected the remaining Alarm 2 parameters do not appear For 48 cool is second PID control output 25 Display Parameter Range and Units Factory Setting Description Comments rst2 Alarm 2 reset mode Auto automatic LAtc manual reset Auto Manual reset via hidden Mode or user input Alarm 2 standby function delay yes no no Power up standby delay Alarm 2 value 999 to 9999 0 T48 0 0 P48 If band alarm action then only a positive value can be entered Alarm Hysteresis value 1 to 250 1 48 0 1 48 Model Number or Mode Setting Dependent Applies to both alarms Set to eliminate chatter Configure Module 5 Cooling Parameters 5 2 Controller returns to configuration access point CnFP NO if A
124. perature Check set up parameters SHrt IN DISPLAY T48 RTD probe shorted Check wiring Replace RTD probe CONTROL SLUGGISH OR NOT STABLE Incorrect PID values 2 Improper probe location See PID Control 2 Evaluate probe location OLOL ULUL IN LOWER DISPLAY Signal input exceeds allowable range by 5 74 Check Remote Signal Source REPLACEABLE OUTPUT BOARD DESCRIPTION Output Board The controller is supplied with an output board relay logic SSR or triac installed The output board is configured for the type of Main Control and Alarm Output based upon the model number ordered The output board is field replaceable in many models For models where the output board is not replaceable the controller must be returned to the factory for output board repair See Ordering Information page 81 for available models Replacing Output Board 1 Remove the bezel assembly See Removing Bezel Assembly page 3 2 Lift up on the top bezel board latch while gently pulling out on the bezel display board assembly Do NOT remove the display board from the bezel Remove the output board by pulling it away from the other boards Replace the output board by aligning the board to board connector Be certain the connector is fully mated 4 Connect the bezel display board assembly by guiding the board ends into the bezel latches Slide the assembly on evenly until the
125. play CJC Description Comments Observe the indicated cold junction Display Action Description Comments Temperature temperature Add the calculated CJ Error to the displayed value Enter the sum as the new value for CJC Exit 9 FS and repeat step 4 Note If the initial value for CJC is not within the range 15 0 C to 40 0 C enter 25 0 C for CJC and repeat the Cold Junction Calibration procedure RTD Ohms Calibration rtd This procedure must be performed AFTER an accurate mV calibration Connect one leg of precision resistance accuracy of 0 1 ohm to terminals 9 and 10 together and the other leg to 8 Display Action Description Comments Rtd1 Connect 0 0 ohm jumper wire Wait 10 seconds press Rtd2 Connect 277 0 ohm Wait 10 seconds press P StP1 Apply 0 mA Wait 10 seconds press P StP2 Apply 5 mA Wait 10 seconds press P StP3 Apply 10 mA Wait 10 seconds press P StP4 Apply 15 mA Wait 10 seconds press P StP5 Apply 20 mA Wait 10 seconds press P Heater Current Input Calibration Connect AC mA source with an accuracy of 0 1 or better Display Action StP1 Apply 0 mA AC Wait 10 seconds press P StP2 Apply 5 mA AC Wait 10 seconds press P StP3 Apply 50 mA AC Wait 10 seconds press P StP4 Apply 75 mA AC Wait 10 seconds press P StP5 Apply 100 mA AC
126. printer Some devices have reversed polarity APPLICATION EXAMPLES T48 OEM Paint Sprayer Application An OEM manufacturing spray painting equipment utilizes the T48 to maintain optimumpainttemperature In addition to thelow cost the 1 16 DIN package size permits the OEM to design temperature control into various sized painting equipment fromsmallhand sprayers to large paint booths The heating element used to heat the paint is connected to the Main Control Output OP1 programmed for On Off control Alarm 1 is programmed as Band Inside Acting so that as long as the paint temperature is within manufacturer s specifications for temperature the light is on Alarm 2 is programmed as Band Outside acting so that the NO GO light is lit when the paint temperature is more than 12 outside the manufacturer s specifications of 140 to 150 F A NO GO GO AL2 02 Ele USER INPUT comm 2 9 COMM 01 N O TC RTD 2 POWER J POWER 85 250 VAC Figure 38 OEM Paint Sprayer Application 66 Process Requirements Unprotected Parameters PrOP 0 On Off control AL 1 12 GO light on within setpoint 12 AL 2 12 NO GO light on outside setpoint 12 1 In Configure Input Parameters tYPE tc J Thermocouple type J SCAL F Control and indicate in F dCPt 0 One degree display resol
127. programming the D button is pressed the controller will return to the Normal Display Mode and the programming can be started over In the Configuration Parameter Mode the Up or Down arrow buttons can be pressed to move to the desired Parameter Module The P button is then pressed to enter into that module The main top display will be the parameter and the secondary bottom display will be the parameter value The Up or Down arrow buttons are used to change the desired parameter value and the P button enters the new value and moves to the next parameter The Setpoint value lower display is changed with the Up or Down arrow buttons when it is selected in the Normal Display Mode 14 PARAMETER CONFIGURATION BASIC START UP For basic start up it is important to verify or change Input Parameter Module 1 IN parameters tYPE and SCAL and Output Parameter Module 2 OP parameter OPAC For alarm and heat cool set up it is important to verify or change Alarms Parameter Module 4 AL parameters 1 AL 1 ACt2 and AL 2 If the above Input Parameters or the input wiring connections are not correct then the main top display may display an error message or incorrect value Verify the input programming and wiring If incorrect display continues refer to Troubleshooting page 73 All other parameter configurations are important but will not prevent the controller from showing a correct display PARAMETER CONFIGURATION FOR SERIAL START UP
128. r 7 data b2 bs 64 65 be stop bolb1 b2 64 bs be bz Stop DLE no parity 1 stop Stop Stop 101 no parity 2 DLE Star 8 data Note bg 6715 ASCII data Figure 36 Character Frame To allow the host adequate time to release the bus after a transmission the response time of the controller is programmable The controller utilizes a receiver design that interprets a mark condition for open connections Start Bit and Data Bits Data transmission always begins with the start bit The start bit signals the receiving device to prepare for reception of data One bit period later the least significant bit of the ASCII encoded character is transmitted followed by the remaining data bits The receiving device then reads each bit position as it is transmitted Since the sending and receiving devices operate at the same transmission speed baud rate the data is read without timing errors Parity Bit After the data bits the parity bit is sent The transmitter sets the parity bit to zero one so that the total number of ones contained in the transmission including the parity bit itself is either even or odd This bit is used by the receiver to detect one bit errors occurring in the transmission Given this limitation the parity bit is often ignored by the receiving device The controller ignores the parity bit of incoming data and
129. ramp value is changed during ramping the new ramp rate takes effect If the setpoint is ramping prior to invoking Auto Tune the ramping is suspended during Auto Tune and then resumed afterward using the current temperature as a starting value Deviation and band alarms are relative to the target setpoint not the ramping setpoint The Remote Setpoint input is also controlled by the setpoint ramp feature In situations where the remote setpoint must be rate controlled this parameter can be used to slowly increment or decrement the signal to its final value The target value not the instantaneous ramp value is displayed Setpoint ramp indication is disabled during remote setpoint ramping 32 Note Depending the thermal characteristics the process the process temperature may not track the programmed setpoint rate User Input InPt The user input may be programmed to perform a variety of controller functions The input must be in its active state for 120 msec minimum to perform the function A function is performed when the User Input Terminal 6 is pulled low to common Terminal 8 Note Do not tie the commons of multiple units to a single switch Use either a multiple pole switch for ganged operation or a single switch for each unit Note Low Level is switch closed High Level is switch open PLOC Program Lock A low level enables the program disable function which places the unit in the Protected Parameter Mod
130. re Module 1 Input Parameters 1 IN P48 22 Configure Module 2 Output Parameters 2 OP 23 Configure Module 3 Lockout Parameters 3 24 Configure Module 4 Alarm Parameters 4 AL tes 25 Configure Module 5 Cooling Parameters 5 02 str ttt ttt ttt 26 Configure Module 6 Serial Communications 6 SC 27 Configure Module 7 Remote Setpoint Parameters 7 rS or 7 2 28 Configure Module 7 Heater Current Parameters 7 HC or 7 n2 28 Configure Module 8 Second Linear DC Analog Output 8 A2 999999999999 28 Configure Module 9 Factory Service Operations 9 5 5 55555555555 ee 28 USER PARAMETER VALUE CHART tt hh hh hh Rn n n nn 29 CONFIGURATION PARAMETER EXPLANATIONS ss ccc 31 Input Parameter Module 1 IN T48 Models s s ab re 31 Input Type w q w e s 4 b s s s s s s ah amp E 31 Scale SCAL x w e win s a s 31 Resolution dCPt x t w a wn e 2 53 s lt BP DUAE s
131. ress the D button while InP1 or InP2 is displayed Front panel annunciators and DV flash and the display indicates the signal value applied to the input terminals The controller can be toggled to the key in method by pressing the D button again In this case the previously accepted value is recalled When the desired value is indicated on the display press the P button to store the value and advance to the next parameter Remote Setpoint Filtering Fltr and bANd The remote setpoint signals can be filtered with a time constraint from 1 to 25 seconds or the filter can be disabled The filter is an adaptive first order low pass type As long as the difference between the current reading and the previous reading is less than the filter band value band the filter remains in effect When the difference exceeds the filter band the filter disengages until the difference is less than the filter band value This action allows quick filter response to large setpoint changes while retaining filtering action under normal process conditions 45 Normally the filter band value is set slightly larger than the noise level of the remote input The time constant of the filter is set consistent with the amount of filtering desired Increased filter time constant values are effective for smoothing remote setpoint readings This may be beneficial for cascade operation and other live signal applications Alternatively the remote setpoint can b
132. rformance during EMI disturbance at 10 Vrms Analog output may deviate during EMI disturbance For operation without loss of performance Install power line filter RLC LFIL0000 or equivalent OR Install 2 ferrite cores RLC FCOR0000 or equivalent to AC lines at unit for frequencies above 5 MHz cables routed in metal conduit connected to earth ground Refer to the EMC Installation Guidelines section of the manual for additional information 21 ENVIRONMENTAL CONDITIONS Operating Range 0 to 50 C Storage Range 40 to 80 C T48 Span Drift maximum 130 ppm C main input T48 Zero Drift maximum 1 uV C main input Operating and Storage Humidity 85 max relative humidity non condensing from 0 C to 50 C Vibration according to IEC 68 2 6 5 to 150 Hz in X Y Z direction for 1 5 hours 2gs Shock according to IEC 68 2 27 Operational 20 g 10 g relay 11 msec in 3 directions Altitude Up to 2000 meters 22 CONNECTION Wire clamping screw terminals 23 CONSTRUCTION Black plastic alloy case and collar style panel latch Panel latch can be installed for vertical or horizontal instrument stacking One piece tinted plastic bezel Bezel assembly with circuit boards can be removed from the case to change the output board without removing the case from the panel or disconnecting wiring Unit meets NEMA 4X IP65 requirements for indoor use when properly installed Installation Category II Pollution Degree 2 24 WEIGHT 0 38 lbs
133. s the last line of a print block 18 lt LF gt This character only appears in the last line of a print block Abbreviated Controller Transmission Byte Format The abbreviated response suppresses the node address and register ID characters leaving only the numeric part of the response The numeric field is 5 6 characters long If the decimal point is present the field is 6 characters Negative values have a leading minus sign The data field is right justified with leading spaces The end of the response string is terminated with a carriage return lt CR gt and line feed lt LF gt When print block transmission is finished extra lt SP gt lt CR gt lt LF gt is used to provide separation between the blocks Byte Description 1 6 6 byte data field 4 bytes for number one byte for sign one byte for decimal point lt gt 8 lt LF gt 9 lt SP gt Space This character only appears in the last line print block 10 lt CR gt This character only appears the last line of a print block 11 lt LF gt This character only appears in the last line of a print block Example of Full Field Printout of Factory Settings P48 148 25 0 TMP 87F SET 0 0 SET OF PWR 47 8 PWR 0 0 PBD 100 0 PBD 4 0 INT 40S INT 1205 DER 45 DER 305 AL1 0 0 AL1 OF AL2 0 0 AL2 OF DEV 25 0 DEV 87F OFP 0 0 OFP 0 0 RMP 0 0R RMP 0 0R CRG 1 06 CRG 1 06 CDB 0 0 CDB OF OST 0000 RSP OF HCF 0 0A OST 0101 65 Troubleshooting S
134. s baud rate The number of response characters varies depending on the setting of the full abbreviated transmissions parameter At the end of ts the controller is ready to receive the next command The maximum serial throughput ofthe controller is limited to the sum of ti t2 and tz 64 Full Field Controller Transmission Byte Format The first two characters transmitted are the node address unless the node address assigned 0 in which case spaces are substituted A space follows the node address field The next three characters are the register ID The numeric data is transmitted next The numeric field is 5 6 characters long If the decimal point is present the field is 6 characters Negative values have a leading minus sign The data field is right justified with leading spaces Engineering Units byte is next The end of the response string is terminated with a carriage return lt CR gt and line feed lt LF gt When print block transmission is finished an extra lt SP gt lt CR gt lt LF gt is used to provide separation between the blocks Byte Description 1 2 2 byte Node Address field 00 99 3 lt SP gt Space 4 6 3 byte Register ID field 7 12 6 byte data field 4 bytes for number one byte for sign one byte for decimal point 13 1 byte Engineering Units 14 lt CR gt 15 lt LF gt 16 lt SP gt Space This character only appears in the last line of a print block 17 lt CR gt This character only appear
135. sed to access programming enter the change and scroll through the available parameters in any mode UP DN In the Normal Display Mode the Up Down A W buttons can be used to directly modify the setpoint value or output power manual control only when viewed in the secondary display SECONDARY DISPLAY DISPLAYS ONE THE OPERATIONAL PARAMETERS ALSO DISPLAYS MNEMONIC OR NUMERIC VALUE WHEN MODIFYING A PARAMETER ILLUMINATES WHEN SECONDARY DISPLAY SHOWS OUTPUT POWER ILLUMINATES WHEN SECONDARY DISPLAY SHOWS PROCESS DEVIATION OR HEATER CURRENT DECIMAL POINT FLASHES WHEN LOCAL SETPO a0 AC DV MN 01 4 NT RAMPING IS ACTIVE MAIN DISPLAY DISPLAYS PROCESS TEMPERATURE ALSO DISPLAYS MNEMONIC OF SELECTED PARAMETER IN A CONFIGURATION MODULE ILLUMINATES WHEN ALARM 1 IS ILLUMINATES WHEN ALARM 2 IS ON WHEN COOLING OUTPUT 02 IS ON ILLUMINATES WHEN MAIN CONTROL OUTPUT IS ON umet WHEN UNIT IS IN MANUAL MODE ILLUMINATES WHEN LOCAL SETPOINT IS ACTIVE OFF WHEN REMOTE SETPOINT IS ACTIVE MODEL OR PROGRAMMING DEPENDENT Figure 12 Front Panel 13 INITIAL CONFIGURATION START UP CONTROLLER POWER UP Upon applying power the controller delays input indication and control action for five seconds to perform several self diagnostic tests and to display basic controller information Initially the controller illumina
136. so restricted to these limits SPLO 999 to 9999 SPHI 999 to 9999 Setpoint Ramp Rate SPrP The setpoint can be programmed to ramp independent of the controller s decimal point position and rounding increment The setpoint ramp rate can reduce sudden shock to the process reduce overshoot on start up or setpoint changes or ramp the process at a controlled rate SPrP 1109999 units minute Note Defined here a unit is the LSD of display regardless of decimal point position ramp value of zero disables setpoint ramping Ifthe optional user input is programmed for setpoint ramp it affects the enabling and disabling of setpoint ramping Setpoint ramping is initiated on power up or when the setpoint value is changed Active Setpoint Ramping is indicated by the left most decimal point flashing in the main display SETPOINT TARGET 500 RAMP TERMINATED INITIAL 200 RAMP INITIATED TIME SETPOINT CHANGED L 10 MINUTES Figure 15 Setpoint Ramp Rate Once the ramping setpoint reaches the target setpoint the setpoint ramp rate disengages until the setpoint is changed again If the ramp value is changed during ramping the new ramp rate takes effect If the setpoint is ramping prior to invoking Auto Tune the ramping is suspended during Auto Tune and then resumed afterward using the current display as a starting value Deviation and band alarms are relative to the target setpoint not the ramping setpoint
137. ssible by connecting current signals in series and voltage signals in parallel P48 Figure 6 P48 Signal Connection POWER WIRING AC Power Primary AC power is connected to terminals 11 and 12 labeled AC To reduce the chance of noise spikes entering the AC line and affecting the controller an AC feed separate from that of the load should be used to power the controller Be certain that the AC power to the controller is relatively clean and within the variation limit Connecting power from heavily loaded circuits or circuits that also power loads that cycle on and off contacts relays motors etc should be avoided DC Power DC power 18 to 36 VDC is connected to terminals 11 and 12 labeled DC and DC respectively CAUTION Observe proper polarity when connecting DC voltages Damage to the unit may occur if polarity is reversed 6 CONTROL AND ALARM OUTPUTS For T48 heating cooling and alarms there are up to three types of ON OFF outputs These outputs can be relay logic or Triac for control or alarm purposes Relay outputs can switch user applied AC or DC voltages Logic SSR drive outputs supply power to external SSR power units One Logic SSR Drive output can control up to four SSR power units at one time The Triac output supplies one Amp of AC current for control of an external AC relay or Triac device The P48 is only available with relay outputs Terminal numbers for the outputs and output types vary fr
138. ter Mode to 10 0 for T48 models and 100 0 for P48 models 2 Set the Integral Time Intt and Derivative Time dErt to 0 seconds 3 Set Output Power Dampening Time OPdP in Output Parameter Module 2 OP to 0 seconds 4 Set Output Cycle Time CYCt in Output Parameter Module 2 OP to no higher than 1 10 of the process time constant when applicable 5 Place controller in Manual Control and set Power from the Normal Display Mode to drive the process value to the desired value Make certain that the controller can drive the process to the setpoint Allow the process to stabilize after setting the Power 6 Place controller into Automatic Control If the process will not stabilize and starts to oscillate set the Proportional Band 2x higher and go back to step 5 7 If the process is stable decrease Proportional Band setting by 2x and change the setpoint value a small amount to excite the process Continue with this step until the process oscillates in a continuous nature 8 Fix the Proportional Band to 3x the setting that just caused the oscillations 9 Set the Integral Time to 2x the period of the oscillations 10 Set the Derivative Time to 1 8 0 125 the Integral Time 11 Set Output Power Dampening Time to 1 40 0 025 the period of the oscillation Note This procedure is an alternate to the controller s Auto tune function It will not provide acceptable results if system problems exist 56 REMOTE SETPOINT OPTION
139. terminating character is received by the controller The time duration oft is dependent on the number of characters and baud rate of the channel t 10 X ofcharacters baud rate At the start of time interval the controller starts the interpretation of the command and when complete performs the command function This time interval varies from 2 msec to 100 msec If no response from the controller is expected the controller is ready to accept another command at the end of ty A minimum delay of 100 msec for period t must be observed before sending another command to the same controller If the controller is to reply with data the time interval tz is controlled by the use of the command terminating character The standard command line terminating character is This terminating character results in a response time window of 100 msec minimum and 200 msec maximum This allows sufficient time for the release of the bus by the transmitter Terminating the command line with results in a response time window t5 of 2 msec minimum and 100 msec maximum The faster response time of this terminating character requires that the transmitter release within 2 msec after the terminating character is received At the beginning of time interval ts the controller responds with the first character of the reply As with ti the time duration of t is dependent on the number of characters and baud rate of the channel t 10 X of character
140. tes both displays and all annunciators to verify that all display elements are functioning The controller then displays the programmed input sensor type in the main top display and the revision number of the controller s operating system software in the secondary bottom display The controller checks for correct internal operation and displays an error message E xx if an internal fault is detected See Troubleshooting page 73 for further information Upon completion of this sequence the controller begins displaying the input value and updating the outputs based upon the control calculation PARAMETER CONFIGURATION OVERVIEW The controller is programmed with certain parameter settings from the factory Factory settings are listed in parentheses in the various Configuration of Parameters tables In many cases these settings must be changed to the particulars of the application before proper operation can be started The controller is typically in the Normal Display Mode When changes to parameter configurations are needed the P button is pressed From the factory the controller will enter directly into the Unprotected Parameter Mode Continue to press the P button until CnFP appears in the bottom display At this time press the Up arrow button and 1 In will appear in the bottom display This will be the Configuration Parameter Mode This programming flow is shown in the Front Panel Programming Chart If at any time during front panel
141. ther a 1 or 2 is sent to set a specific controller mode Block Read Register Command Code P The Block Read Register command is used to read data from multiple registers with a single command With this command if no register ID characters follow the controller responds with register data that is preset by the Print Options parameter Module 6 SC This mode is useful for print ticket applications However if Register ID characters follow this command the controller responds with register data indicated by the ID character field This character ID field does not follow the normal Register ID format but instead is a field composed of ASCII encoded bit mapped bytes See Block Read Command Register ID Table 60 Four of these field bytes are used in this format P lt Bytel gt lt Byte2 gt lt Byte3 gt lt Byte4 gt Each byte represents a code that selects a register s for transmission The Block Read Command Byte Table relates specific registers for reads to the field bytes Examples Print Alarm 1 and Alarm 2 values both are in Byte2 table Explanation Bytel 0 Byte2 3 Byte3 amp Byte4 are not needed ASCII String 03 Either the or terminator could be used For those programming in HEX P lt 50 gt 0 lt 30 gt lt 2A gt lt 24 gt HEX String lt 50 gt lt 30 gt lt 33 gt lt 2A gt Print Input Cooling Deadband and Output Status Input is in Byte table and the other two are in
142. troller calibration and reset programming to factory configuration setting Access to each operation is protected by an access code number Entering code 66 restores all parameters to factory settings the unit indicates the operation after the P button is pressed by displaying rSEt in the lower display momentarily Caution Entering code 77 twice in succession erases the controller calibration values and defaults the values to nominal settings Reading errors of 10 may result Do not perform this operation unless the controller has lost calibration Loss of calibration is signaled by an E CL error flag at power up To clear this flag perform calibration procedure as noted in Factory Service Operations Calibration 9 FS page 70 Alternatively stepping through one of the calibration procedures clears the error flag but does NOT validate the calibration accuracy in any manner MANUAL CONTROL The controller be transferred between Automatic Control closed loop On Off or PID control and Manual Control open loop where the control does not work from the setpoint or process feedback Manual operation provides percentage of control of the main output per the direct or reverse action configured in Output Parameter 2 OP OPAC from 0 to 100 power When 2 is configured for cooling 02 Manual operation still provides 0 to 100 power to the main O1 output and provides percentage of control to cooling 02 output
143. troller commons SECOND LINEAR DC OUTPUT WIRING Models with the Second Linear DC output option provide a conditioned and scaled retransmitted signal output The terminals are 13 and 14 The common of this output is isolated from the input common but not from the other commons For proper operation keep this common isolated from all other controller commons USER INPUT WIRING The use of shielded cable is recommended Follow the EMC installation guidelines for shield connection Terminal 6 is the User Input which is programmable for a variety of functions Any form of mechanical switch may be connected to terminal 6 USER INPUT and terminal 8 COMM Sinking open collector logic with less than 0 7 V saturation and off state leakage current of less than 1 may also be used REAR TERMINAL ASSIGNMENTS T48 Models Without RS 485 and Analog Output AC DC Power A2 or 02 Dedicated A1 Dedicated 1 User Input 2nd Input Option AC 9 4810000 DC Model T4810010 T4810003 T4810013 T4810004 T4811000 T4810014 T4811010 T4811100 T4811110 T4811103 T4811113 T4811104 T4820000 T4811114 T4820010 T4820003 T4820013 T4820004 T4820014 T4820200 T4820210 14820203 4820204 74820213 74820214 74821000 74821010 74821100 74821110 74821103 748211
144. troller may result if these terminals are used SIGNAL WIRING Thermocouple T48 When connecting the thermocouple be certain that the connections are clean and tight refer to Figure 4 for terminal connections If the thermocouple probe cannot be connected directly to the controller thermocouple wire or thermocouple extension grade wire must be used to extend the connection points copper wire does not work Always refer to the thermocouple manufacturer s recommendations for mounting temperature range shielding etc For multi probe temperature averaging applications two or more thermocouple probes may be connected to the controller always use the same type Paralleling a single thermocouple to more than one controller is not recommended Generally the red wire from the thermocouple is negative and connected to the controller s common 0 CONNECTION 148 Figure 4 Thermocouple Connection 5 RTD T48 When connecting the RTD be certain that the connections are clean and tight refer to Figure 5 for terminal connections RTD sensors have a higher degree of accuracy and stability than thermocouple sensors Most RTD sensors available are the three wire type The third wire 15 sense lead for canceling the effects of lead resistance of the probe Four wire RTD elements may be used by leaving one of the sense leads disconnected Two wire RTD sensors may be used in either of two ways
145. ts Factory Setting Local Setpoint 999 to 9999 SP1 or SP2 0 for T48 0 0 for P48 Output 99 9 to 100 0 Not limited by Power Read only Unless OPLO amp 2 OP Manual Control Setpoint 999 to 9999 Deviation Read only Parameter Description Comments Range limited by SPLO amp SPHI in 1 In Shows difference between Temp Process top display and Setpoint Heater 999 to 9999 Current Read only Heater Current models show heater current value and not process deviation Units Symbol F or C Read only Blank Blank display T48 models only P48 models only FRONT PANEL PROGRAM DISABLE There are several ways to limit the programming of parameters from the front panel buttons The settings of the parameters in the Lockout Module 3 LC the code number entered and the state and or function programmed for the User Input Terminal 6 will all affect front panel access The following chart describes the possible program disable settings User Input State Code Number Description Full access to all modes and parameter modules Inactive or User 0 Input not programmed for PLOC Active with User Input programmed Access to protected parameter mode only Code number does not for PLOC appear Active with User Any between Access to protected parameter Input programmed 1 amp 250 mode Correct programmed code for PLOC
146. ut Calibration 77222 71 Calibration For PAB sss II III IIIA Mec eeHI RR c c cc 72 Service Operations 9 FS 12 Input Calibration rrr ee 72 Main or Second Linear DC Analog Output 72 Remote Setpoint Calibration 99999999999 72 TROUBLESHOOTING 73 REPLACEABLE OUTPUT BOARD DESCRIPTION ttt n 75 SPECIFICATIONS AND DIMENSIONS ttt ttt ttt ee 76 ORDERING INFORMATION ee 81 GENERAL DESCRIPTION The T48 Controller accepts signals from a variety of temperature sensors thermocouple or RTD elements while the P48 Controller accepts either a 0 to 10 VDC or 0 4 to 20 mA DC input signal Both controllers precisely display the process and provide an accurate output control signal time proportional or linear DC to maintain a process at the desired control point The controllers comprehensive programming allows them to meet a wide variety of application requirements The controller can operate in the PID control mode for both heating and cooling with on demand Auto Tune which will establish the tuning constants The PID tuning constants may be fine tuned by the operator at any time and then locked out from further modification The controller employs a unique overshoot suppression feature which allows the quickest response w
147. ution FLtr q Nominal input signal digital filtering SHFt 0 No shift correction necessary SPLO 140 Limit min setpoint temperature to 140 F SPHI 150 Limit max setpoint temperature to 150 F SPrP 0 0 No setpoint ramping InPt PLOC User Input program lock 2 OP Configure Output Parameters CYCt 2 Not used for On Off control OPAC rEv Use reverse acting for heating OPLO 0 For on off leave at 096 OPHI 100 For on off leave at 10096 OPFL 0 Turn off if sensor fails OPdP 3 Output power dampening 3 seconds CHYS 2 2 degree on off band tcod 0 Not used for On Off control 4 AL Configure Alarm Parameters Act1 b IN Band Inside rst Auto Automatic light on off Stb1 Power up standby AL 1 12 Go light on within setpoint 12 Act2 b ot Band outside rst2 Auto Automatic light on off Stb2 Power up standby AL 2 12 No Go light on outside setpoint 12 AHYS f 1 alarm activation hysteresis Factory Settings 148 Plastics Extruder Application Several T48 controllers are employed to control the temperature ofa plastics extruder Each T48 controls a heating element and a cooling water solenoid to maintain each extruder zone at the desired temperature The Heater Current Monitor option is used for early detection of heater element failure The multi function User Input can be programmed to allow selection of manual operation when connected to common This allows the user to hold the control output of the c
148. with negative value d HI or Band inside acting b IN is selected for the alarm action the indicator is OFF when the alarm output is ON Caution In applications where equipment or material damage or risk to personnel due to controller malfunction could occur an independent and redundant temperature limit indicator with alarm outputs is strongly recommended The indicators should have input sensors and AC power feeds independent from the other equipment The configuration options of the alarm output are model dependent Act1 Alarm 1 Act2 Alarm 2 Absolute High Acting Absolute High Acting Absolute Low Acting A LO Absolute Low Acting Deviation High Acting 4 Deviation High Acting Deviation Low Acting d LO Deviation Low Acting Band Inside Acting b In Band Inside Acting Band Outside Acting b Ot Band Outside Acting Assigns output 01 A1 CooL 02 2 as cooling as control output or second output Assigns A1 as heater Assigns A2 as heater Model Number Dependent Note Deviation and band type alarms track both local and remote setpoint 39 Heater Break Alarm T48 models equipped with the Heater Current Monitor provide an alarm output in the event of a heater or a heater control circuit failure The alarm is dual mode and activates under either of the following two conditions 1 Main control output O1 is on fora minimum of 600 msec and th
149. y 7 5 V StP5 Apply 10 V Connect current calibration source with an accuracy of 0 1 or better StPA Apply 0 mA StPB Apply 20 mA Wait 10 seconds press P Wait 10 seconds press P Main or Second Linear DC Analog Output Calibration 1 Set the Linear DC Output jumper for the range to be calibrated See Linear DC Analog Output Jumper Selection page 12 2 Connect a meter with an accuracy of 0 05 or better to output 3 For each step use the controller arrow keys to adjust the external meter display to match the parameter being calibrated Press P when the output is correct or if the parameter is not being calibrated External Meter Action Display Parameter COV 0 V Calibration 0 00 C 10V 10 V Calibration 10 00 0c 0 mA Calibration 0 00 20 20 mA Calibration 20 00 Adjust if necessary press P Adjust if necessary press P Adjust if necessary press P Adjust if necessary press P Remote Setpoint Calibration Connect DC mA source with an accuracy of 0 03 or better Display Action StP1 Apply 0 StP2 Apply 5 mA StP3 Apply 10 StP4 Apply 15 mA StP5 Apply 20 mA Description Comments Wait 10 seconds press P Wait 10 seconds press P Wait 10 seconds press P Wait 10 seconds press P Wait 10 seconds press TROUBLESHOOTING The majority of problems can be traced to improper connections or incorrect set up parameters Be sure

T48-P48 Instruction Manual - Carlton

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