TEC 910 Manual - Tempco Electric Heater Corporation
Contents
1. TEC 920 Rear View Reset 4 Button Limit Control TEC 910 Rear View Mechanical Contactor Figure 4 1 Over Temperature Protection with Remote Reset 23 24 NOTES Chapter 5 Calibration Do not proceed through this section unless there is a definite need to recalibrate the controller If you recalibrate all previous calibration data will be lost Do not attempt recalibration unless you have the appropriate cali bration equipment If the calibration data is lost you will need to return the controller to your supplier who may charge you a service fee to recalibrate the controller Entering calibration mode will break the control loop Make sure that the system is ready to enter cal ibration mode Equipment needed for calibration 1 A high accuracy calibrator Fluke 5520A calibrator rec ommended with the following functions 0 100mV millivolt source with 0 005 accuracy 0 10V voltage source with 0 005 accuracy 0 20mA current source with 0 005 accuracy 0 300 ohm resistant source with 0 005 accuracy 2 A test chamber providing 25 C 50 C temperature range 3 A switching network SWUIO6K optional for automatic calibration 4 A calibration fixture equipped with programming units optional for automatic calibration The calibration procedure described in the following sec tion is a step by step manual procedure Normal Mode 6 4 seconds 9 4 se2. 1F 52 07 4E 1F 00 02 HI LO RESO 1 IN LO O IN HI 100 0 3 Preset the second group of the parameters SHIF 0 0 FILT 2 CRC16 10 00 01 Func Starting Adar Addr 10 00 11 00 03 06 52 00 13 26 07 4E 1F 51 No of words Bytes HSP1 100 0 LSP1 0 0 SP2 90 0 4 Preset the third group of the parameters A3 HI CRC16 LO 01 Addr Func Starting Addr No of words Bytes Reserved 01 HY 0 1 00 02 00 00 00 00 00 OUT1 2 Reserved 00 00 00 00 00 00 00 00 Reserved Reserved Reserved Reserved 00 Reserved 00 00 00 Reserved 00 00 4E Reserved HSP L 0 1F 75 2F 4A 37 4E 1F 00 00 00 00 00 00 00 02 HI LO HSPH 1000 0 LSP L 100 0 LSP H 0 Reserved 5 Preset the rest parameters Reserved Reserved OUT2 4 CRC16 10 00 28 00 OA 14 00 01 00 01 0O 05 00 00 Addr Func Starting Addr No of words Bytes ADDR 1 BAUD 5 PARI 0 Reserved AL FN 6 AL MD 0 AL HY 0 1 AL FT 1 EIFN 0 DISP 0 CRC16 34 Example 2 Read the process value PV Send the following message to the controller via the COMM port or the programming port Query 03 00 80 00 01 HI LO Addr Func Starti
3. 20 minutes in still air room Room temperature 253 C Figure 5 2 Cold Junction Calibration Setup The 5520A calibrator is configured as a K type thermocouple output with internal compensation Send a 0 00 C signal to the unit under calibration The unit under calibration is powered in a still air room with a temperature of 25 3 C Allow at least 20 minutes for warming up Press for at least 4 seconds The display will blink a moment If the display didn t blink then calibration failed Step 4 Calibrate the gain of cold junction compensation Set up the equipment same as step 3 The unit under cali bration is power in a still air room with temperature 50 3 C Wait at least 20 minutes for warming up The cal ibrator source is set at 0 00 C with internal compensation mode Press for at least 4 seconds The display will blink for a moment If the display didn t blink then calibra tion failed Continued 25 Step 5 Calibrate the RTD reference voltage Send a 100 ohms signal to terminals 3 4 and 5 according to figure 5 3 Table 5 3 RTD Calibration 2 amp D 100 ohms 3 amp amp 3 SUS e sr ele fo Press for at least 4 seconds The display will blink for a moment If the display didn t blink then calibration failed Step 6 Calibrate the RTD serial resistance Change the ohm s value o
4. A 2 Warranty lese 35 e System Designer Read All Chapters Expert User 2 REED Read Page 10 Information in this user s manual is subject to change with out notice Copyright 2013 Tempco Electric Heater Corporation all rights reserved No part of this publication may be repro duced transmitted transcribed or stored in a retrieval sys tem or translated into any language in any form by any means without the written permission of Tempco Electric Heater Corporation Figures amp Tables Page No Figure 1 1 Programming Port Location Figure 1 2 Front Panel Display 3 Figure 1 3 Power Up Sequence 5 Figure 1 4 High Limit Operation 7 Figure 1 5 Low Limit Operation 7 Figure 1 6 High Low Limit Operation 7 Figure 2 1 Mounting Diagram secre 11 Figure 2 2 Lead Termination 11 Figure 2 3 Rear Terminal Connection Diagram 11 Figure 2 4 Power Supply Connections 12 Figure 2 5 Thermocouple Input Wiring 12 Figure 2 6 RTD Input Wiring 13 Figure 2 7 Linear Voltage Input Wiring 13 Figure 2 8 Linear Current Input Wiring 13 Figure 2 9 Event Input Wiring 14 Figure 2 10 Output 1 Wiring 14 Figure 2 11 Output 2 Wiring 15 Figure 2 12 RS 485 Wiring 16 Figure 3 1 Conversion Cu
5. Low Limit Operation HSP1 HSP1 O1 HY LSP1 O1 HY LSP1 oe EOC Figure 1 6 A B C D E F Reset is applied High Low Limit Operation 01 HY Output1 hysteresis 1 7 Parameter Descriptions Parameter Parameter Description R Default Notation Refer to Page ange Value H5P1 rm 100 0 C ep High Limit Set point 1 Low HSPL High HSPH 212 0 F LSP es LSP1 Low Limit Set point 1 Low LSP L High LSP H 32 0 F uie odes T Low 19999 High 45536 Sot 0 J EC J type thermocouple 1 BEC K type thermocouple 2 E EC T type thermocouple 3 EEC E type thermocouple 4 b_EC B type thermocouple 5 r EC R type thermocouple 6 S5 EC S type thermocouple 7 n EC N type thermocouple I cr nPE Input sensor 8 L EC L type thermocouple 1 INPT selection 9 EC C type thermocouple 0 Page 11 amp 23 10 P_EC P type thermocouple 11 PEdn PT 100 ohms DIN curve 12 PE J5 PT 100 ohms JIS curve 13 4 20 4 20 mA linear current input 14 G 20 0 20 mA linear current input 15 8 50 0 60 mv linear millivolt input 16 G 0 1V linear voltage input 17 8 5 0 5V linear voltage input 18 5 1 5V linear voltage input 19 O 0 10V linear voltage input 0 C Degree C unit ume Process unit 1 F Degree F unit 0 UNIT 2 Pu Process unit 1 ES 0 no dP No decimal point RESO Display Resolution 1 dP 1 decimal digit 1 2 dP 2 decimal digits 3 3 dP 3 de
6. Signal Conditioner DC Power Supply Three types of isolated DC power supplies are available to supply an external transmitter or sensor These are 20V rated at 25mA 12V rated at 40mA and 5V rated at 80mA DC voltage is delivered to the output 2 terminals by selecting DCPS for OUT2 in the setup menu Two line Transmitter Set ourz gL PS DC Power Supply Three line Transmitter or sensor Figure 3 5 DC Power Supply Application Bridge Type Sensor Caution To avoid damage don t use the DC power supply beyond its rating current Purchase a power supply with the correct voltage to suit your external devices See ordering code in section 1 2 3 10 Remote Reset If REST is selected for the Event Input Function EIFN terminals 16 and 17 will act as remote reset input Pressing the remote reset button will perform the same function as pressing the RESET key Refer to section 1 4 for RESET key function Setup OUT2 EIFN Remote EIFN REST Figure 3 6 Remote Reset Application Reset 21 3 11 Remote Lock If LOCK is selected for Event Input Function EIFN terminals 16 and 17 will act as remote lock input Turning the remote lock switch on will keep all the parameter settings from being changed If the switch is opened the lock indicator is extinguished and the up down key is enabled Setup lelt OUT EIFN Figure 3 7 Remote Lock Application EIFN LOCK 3 12 Limit Annu
7. a syntactically correct message which contains an illegal value it will send an exception response consisting of five bytes as follows slave address offset function code exception code CRC16 Hi CRC16 Lo Where the offset function code is obtained by adding the function code with 128 ie function 3 becomes H 83 and the exception code is equal to the value contained in the following table Exemption Code Name Cause 1 Bad Function Code Function code is not supported by the controller 2 Illegal data address Register address out of range legal data value Dat valve out of range crate i wt 7 3 Parameter Table Register Parameter Parameter Scale Scale Notes Address Notation Low High 0 Reserved 1 HSPI High Limit Set Point 1 R W 2 LSP1 Low Limit Set Point 1 R W 3 SP2 Set Point 2 value for output 2 R W 4 Reserved 5 Reserved 6 PV HI Historical max value of PV I R 7 PV LO Historical min value of PV z R 8 Reserved 9 INPT Input type selection 0 65535 R W 10 UNIT Process unit 0 65535 R W 11 RESO Display resolution 0 65535 R W 12 IN LO Low scale value for linear input R W 13 IN HI How scale value for linear input R W 14 SNIF PV shift offset value R W 15 FILT PV filter time constant 0 65535 R W 16 T ABN Accumulated time during abnormal condition 0 6553 5 R 17 OUTI Output 1 fu
8. accept a switch signal as well as an open collector signal The event input function EIFN is activated as the switch is closed or an open collector or a logic signal is pulled down 14 2 10 Output 1 Wiring Max 2A Resistive Load 120V 240V Mains Supply Relay or Triac Output To Controller Direct Drive Output 120V 240V o Mains Supply To Controller Output Contactor No Fuse Breaker Relay or Triac SSR Heater Output to Drive Load Contactor Figure 2 10 Output 1 Wiring 2 11 Output 2 Wiring Max 2A Resistive 120V 240V Supply Oo Relay or Triac Output Sensor or Transmitter DC Power Supply Output Figure 2 11 Output 2 Wiring 15 2 12 RS 485 RS 485 to RS 232 network adapter SNA10A or SNA10B Terminator TX1 220 ohms 0 5W Figure 2 12 RS 485 Wiring 16 Chapter 3 Programming 3 1 Process Input Press for 4 seconds and release to enter the setup menu Press to select parameter The display will indicate the parameter symbol and the value or selection for that parameter INPT Selects the sensor type and signal type for the process input UNIT Selects the process unit RESO Selects the location of the decimal point Resolution for most not all process related parameters IN LO Selects the low scale value for the linear type input Hidden if T C or R
9. key is pressed for 4 seconds See section 3 13 Output 1 2 Indicator LIMIT CONTROL OP1 OP2 F C Process Unit Indicator Displays process value menu symbol and error code etc PV HSP1 LSP1 SP2 LOCK Lock Status Indicator 4 Buttons f f control cj R Mie iiw A ai temPco TEC 910 Table 1 1 Display Form of Characters ALALELE IS N Blo FIF ly o cj t e o k e c e H H t L JQ ipjd n h M a R V indicates Abstract Characters How to display a 5 digit number For a number with a decimal point the display will be shifted one digit to the right 199 99 will be displayed as 199 9 4553 6 will be displayed as 4553 For a number without a decimal point the display will be divided into two alternating phases 19999 will be displayed as 4 45536 will be displayed as 4 9999 will be displayed as 9999 NORMAL DISPLAY During normal operation the unit will display the process value and the word SAFE ABNORMAL DISPLAY Whenever the process is outside the normal range the display will display the limit set point value instead of displaying the word SAFE SENSOR BREAK DISPLAY If a break is detected in the sensor circuit the display will show A D FAILURE DISPLAY If failure is detected in the A D converter circuit the display will show Ader POWER UP SEQUENCE Verify that all electrical connections have been made properly before applyin
10. setup calibra tion and testing Communication Port Connection to PC for super visory control Limit Control High limit low limit and high low limit programmable Digital Filter Function First order Time Constant 0 0 2 0 5 1 2 5 10 20 30 60 seconds programmable 28 Environmental and Physical Operating temperature 14 to 122 F 10 C to 50 C Storage temperature 40 to 140 F 40 C to 60 C Humidity 0 to 90 RH non condensing Insulation resistance 20 Mohms min at 500VDC Dielectric strength 2000VAC 50 60 Hz for 1 minute Vibration resistance 10 55 Hz 10 m s for 2 hours Shock resistance 200m s 20g Moldings Flame retardant polycarbonate Dimensions 1 7 8 x 1 7 8 x 3 3 4 Hx Wx D 48 x 48 x 94 mm Depth behind panel 3 3 8 86 mm Weight 33 lbs 150 grams Approval Standards Safety FM Class 3534 Oct 1998 UL873 11th edition 1994 CSA C222 No 24 93 EN61010 1 IEC1010 1 Protective class IP30 front panel indoor use IP20 housing and terminals with protective cover EMC EN61326 Chapter 7 Modbus Communications This chapter specifies the Modbus Communications proto checking None Even or Odd Baud rate may be set to 300 col as RS 232 or RS 485 interface module is installed Only 600 1200 2400 4800 9600 14400 19200 28800 and RTU mode is supported Data is transmitted as eight bit 38400 binary bytes with 1 start bit 1 stop bit and optional parity
11. the alarm hysteresis value AL HY The hysteresis value is introduced to avoid interference in a noisy environment Normally AL HY can be set with a minimum value 0 1 The trigger levels for the process high alarm are SP2 and SP2 AL HY The trigger levels for the process low alarm are SP2 AL HY and SP2 There are two types of alarm mode AL MD that can be selected They are Normal Alarm NORM and Latching Alarm LATCH Normal Alarm AL MD NORM When the normal alarm is selected the alarm output is de energized in the non alarm condition and energized in an alarm condition Latching Alarm AL MD LTCH If the latching alarm is selected once the alarm output is energized it will remain unchanged even if the alarm condition has been cleared unless the power is shut off or the RESET key or remote reset button is pressed Failure Transfer AL FT OFF or ON If a Sensor Break or an A D Failure occurs the alarm output will be on or off according to the setting of AL FT Examples SP2 200 AL HY 10 0 AL MD NORM AL FN PV H A Process proceeds x x T Piu Er Wisi as ma Figure 3 3 Normal Process Alarm 190 190 190 190 orr 190 SP2 200 AL HY 10 0 AL MD LTCH AL FN PV H A Process proceeds l d I 4 l 1 200 200 oN 200 200 200 190 190 190 190 orr 190 I xc Indicates an Alarm Condition Figure 3 4 Latching Process Alarm 19 20 3 7 RS 4
12. the enter key for 4 seconds to enter the setup menu Press the enter key for 8 seconds to enter the calibration mode UP KEY 4 This key is used to increase the selected parameter value when the lock indicator is off DOWN KEY LJ This key is used to decrease the selected parameter value when the lock indicator is off Figure 1 1 Programming Port Location The programming port is used for off line automatic setup and testing procedures only Don t attempt to make any connection to these pins when the unit is actively being used in a control application RESET KEY P This key is used to 1 Revert the limit condition after the process is within the limit 2 Revert the display to the normal display 3 Reset the latching alarm once the alarm con dition is removed 4 Reset the limit annunciator Note If the RESET key is left pressed only ONE reset operation will occur If the unit subsequently goes into a state where reset is required again the RESET key or remote reset contacts must be released opened and pressed closed again UNLOCK KEY R 4 seconds Press the RESET key for 4 seconds to enable up down key function reset the reference data sec tion 3 13 and extinguish the lock indicator However this function is disabled when the remote lock is selected for EIFN Event Input Function See section 3 11 Figure 1 2 Front Panel Display The reference data are reset as long as the reset
13. 7 1 Functions Supported Only function 03 06 and 16 are available for this series of controllers The message formats for each function are described as follows Function 03 Read Holding Registers Query from Master Response from Slave Slave address 0 255 EL Function code 3 a Starting address of register Hi 0 Byte count Starting address of register Lo Data 1 Hi 0 61 128 143 Data 1 Lo No of words Hi 0 Data 2 Hi No of words Lo 1 22 Data 2 Lo CRC16 Hi CRC16 Lo CRC16 Hi CRC16 Lo Function 06 Preset Single Register Query from Master Response from slave Slave address 0 255 lt Function code 6 lt Register address Hi 0 lt c Register address Lo 0 61 128 143 ELM Data Hi LL Data Lo a CRC16 Hi E CRC16 Lo LM Function 16 Preset Multiple Registers Query from master Response from slave Slave address 0 255 a Function code 16 lt Starting address of register Hi 0 LM Starting address of register Lo 0 61 128 143 M No of words Hi 0 E No of words Lo 1 18 EL Byte count 2 36 CRC16 Hi Data 1 Hi CRC16 Lo Data 1 Lo Data 2 Hi Data 2 Lo CRC16 Hi CRC16 Lo 29 30 7 2 Exception Responses If the controller receives a message which contains a corrupted character parity check error framing error etc or if the CRC16 check fails the controller ignores the message However if the controller receives
14. 85 Communication Using a PC for data communication is the most economical method The signal is transmitted and received through the PC communication port generally RS 232 Since a standard PC can t sup port an RS 485 port a network adapter such as SNA10A SNAIOB has to be used to convert RS 485 to RS 232 for a PC if RS 485 is required for data communication Many RS 485 units up to 247 units can be connected to one RS 232 port This means that is a PC with 4 comm ports can communicate with up to 988 units Select COMM for OUT2 in setup menu output 2 will perform RS 485 interface with Modbus RTU mode protocol Setup 1 Select COMM for OUT2 2 Set a different address ADDR for each unit which is connected to the same port 3 Set the baud rate BAUD and parity bit PARI values according to the setup of the PC 3 8 Display Mode The DISP in the setup menu is used to select the display format for normal conditions If PV is selected the display will indicate the process value If SPI is selected the display will indicate HSPI value for high limit control OUT1 HI and high low limit control OQUT1 HI LO or indi cate LSP1 value for low limit control OUT LO If SAFE is selected the display will indicate the word SAFE for normal conditions However if the process value goes beyond high limit or low limit the display will indicate the process value If an error condition occurs the display will indicate the error symbol 3 9
15. Instruction Manual temPco tec 910 L TEC 910 High Limit Control Microprocessor Based Limit Controller Agency Approvals WG CC lt APPROVED PN TEMPCO Electric Heater Corporation 607 N Central Avenue Wood Dale IL 60191 1452 USA amp M s Tel 630 350 2252 e Toll Free 800 323 6859 Pen conos O Fax 630 350 0232 E mail info tempco com Serving Industry Since 1972 Web www tempco com Manual TEC 910 Revision 7 2015 NOTES Warning Symbol A This symbol calls attention to an operating procedure prac tice or the like which if not correctly performed or adhered to could result in personal injury or damage to or destruc tion of part or all of the product and system Do not proceed beyond a warning symbol until the indicated conditions are fully understood and met Using the Manual s Installers eiras perna carnii Read Chapter 1 2 Page No Chapter 1 Overview 1 1 General sis see ve te Pee ee eee RR 1 1 2 Ordering Code 0 cece eee eee 1 1 3 Programming Port 0 000000 2 1 4 Keys and Displays 2 000000 2 1 5 Menu Overview soeces eitad Desr DE E eee eee 6 1 6 Limit Control Operation iacere ecard iia as 7 1 7 Parameter Descriptions 04 8 Chapter 2 Installation 2 1 Unpacking esis aaa cheer Pei ail e 11 2 2 Mounting vs cos 0 0 eee eee aneda 11 2 3 Wiring Precautions 0 00000 11 2 4 Power Wiring 0 0 cee eee 12 2 5
16. Sensor Installation Guidelines 12 2 6 Thermocouple Input Wiring 12 2 7 RTD Input Wiring 000 05 13 2 8 Linear DC Input Wiring 13 2 9 Event Input Wiring csse esceeesre ey ene 14 2 10 Output 1 Wiring lees 14 2 11 Output 2 Wiring seen 15 2 12 RS 485 0 ec ce cette nnn 16 Chapter 3 Programming 3 1 Process Input sereis oki Riad Sia eis 17 3 2 Eamit Control paratu cx e Rr eR eons 17 3 3 Set Point Range 0 0 0 0008 18 3 4 PV Shift ese re RU paw eas Ex FERS 18 3 5 Digital Filter 2 ei crea e eee 18 3 6 Process Alarms 00 0 c eee eee eee 19 3 7 Data communication 2 00 00 20 3 8 Display Mode 02 0 20 3 9 Signal Conditioner DC Power Supply 21 3 10 Remote Reset lslslleleleeesn 21 3 11 Remote Lock sinis iaa sirara a a iaaa 22 3 12 Limit Annunciator 0000 22 3 13 Reference Data 00 000 e eee 22 Chapter 4 Application 23 Chapter 5 Calibration 25 Chapter 6 Specifications 27 Chapter 7 Modbus Communications 7 1 Functions Supported 0 29 7 2 Exception Responses lsseseseses 30 7 3 Parameter Table 0 0 0 2 cee eee 30 7 4 Data Conversion 0 000 cece eee eee 32 7 5 Communication Examples 33 Appendix A Brror Codes cg mr Ren 34
17. TD type is selected for INPT IN HI Selects the high scale value for the linear type input Hidden if T C or RTD type is selected for INPT 3 2 Limit Control How to use IN LO and IN HI If 4 20mA is selected for INPT SL specifies the input sig nal low i e 4mA SH specifies the input signal high i e 20mA S specifies the current input signal value and the conversion curve of the process value is shown as follows Figure 3 1 Conversion Curve for process value input signal S SL SH SL Example A 4 20 mA current loop pressure transducer witt range 0 15 kg cm2 is connected to input then r the following setup Formula PV IN LO IN HI IN LO INPT 4 20 mA IN LO 0 00 UNIT PU IN HI 15 00 RESO 1 DP Of course you may select other value for RESO to alter the resolution OUT1 Selects the output 1 function The available output 1 functions are High Limit Control Low Limit Control and High Low Limit Control Refer to section 1 6 for limit control operation O1 HY Output 1 hysteresis value The hysteresis value is adjusted to a value to eliminate relay jitter in a noisy environment 17 3 3 Set Point Range HSP L Lower limit of HSP1 Hidden if LO is selected for OUT1 HSP H Upper limit of HSP1 Hidden if LO is selected for OUT1 LSP L Lower limit of LSP1 Hidden if HI is selected for OUT1 LSPH Upper limit of LSP1 Hidden if HI is selected for OUT1 HSP L and HSP H in the se
18. TI relay is de energized After the 6 5 second self test period if the process is below the high limit set point HSP1 and above the low limit set point LSP1 the output 1 relay will be energized and the OPI indicator will go off If the process goes above the high limit set point or below the low limit set point the relay will be de energized the OP1 indicator will go on and the display will show the process value After the process is within the normal operation range and the R key is pressed or the remote reset input is applied the relay will be energized and the OPI indicator will go off HSP1 O1 HY OUT Relay ON o C O1HY Output1 hysteresis LOW LIMIT OPERATION If Lo is selected for OUTI the unit will perform low limit control When power is applied the OUTI relay is de energized After the 6 5 second self test period if the process 1s above the low limit set point LSP1 the out put 1 relay will be energized and the OP1 indicator will go off If the process goes below the low limit set point the relay will be de energized the OP1 indicator will go on and the display will show the process value After the process rises above the low limit set point and the R key is pressed or the remote reset input is applied the relay will be energized and the OP1 indicator will go off LSP1 O1 HY LSP1 OFF a pee A B C Reset is applied O1 HY Output1 hysteresis Figure 1 5
19. age 0 1V 3 DC Voltage 0 10V 4 DC Current 0 20 mA 9 Other 0 None 1 Form A Relay 2A 240 Vac 6 Triac Output 1A 240 Vac SSR 7 Isolated 20V 25 mA DC Output Power Supply 8 Isolated 12V 40 mA DC Output Power Supply 9 Isolated 5V 80 mA DC Output Power Supply A RS 485 B Event Input C Pulsed voltage to drive SSR 14V 40mA D Retransmit 4 20mA 0 20mA E Retransmit 1 5V 0 5V F Retransmit 0 10V H Other Output 1 1 Form C Relay 2A 240 Vac 6 Triac output 1A 240 Vac SSR 9 Other discouraged for high limit safety circuits as solid The use of solid state relays contactors are highly state devices can fail in the closed position Accessories TEC99001 Smart Network Adapter for third party software converts 255 channels of RS 485 or RS 422 to RS 232 NetworkTEC99012 Programming Cable TEC99003 Smart Network Adapter for programming port to RS 232 interface TEC99030 Configuration Software 1 3 Programming Port Programming Port TEC99012 is connected here to perform setup and calibration procedures MIU control board Power board Open housing Top view of TEC 910 1 4 Keys and Displays KEYPAD OPERATION SCROLL KEY 1 Select a set point to be displayed 2 Select a parameter to be viewed or adjusted 3 Advance display from a parameter code to the next parameter code ENTER KEY 4 seconds 8 seconds Press
20. agram 11 2 4 Power Wiring The controller is designed to operate at 11 26VAC VDC to 90 264VAC Check that the instal lation voltage corresponds to the power rating indi cated on the product label before connecting power to the controller Near the controller a fuse and a switch rated at 2A 264VAC should be equipped as shown in Figure 2 4 This equipment is designed for installation in an enclosure which provides adequate protection against electric shock The enclosure must be connected to earth ground Local requirements regarding electrical installation should be rigidly observed Consideration should be given to pre vent unauthorized personnel from accessing the power ter minals 2 5 Sensor Installation Guidelines Proper sensor installation can eliminate many problems in a control system The probe should be placed so that it can detect any temperature change with minimal thermal lag In a process that requires fairly constant heat output the probe should be placed close to the heater In a process where the heat demand is variable the probe should be close to the work area Some experimentation with probe location is often required to find the optimum position In a liquid process the addition of agitation will help to eliminate thermal lag Since the thermocouple is basically a point measuring device placing more than one thermocou ple in parallel will provide an average temperature readout and produce better result
21. ation high coefficient 199 99 4553 6 R W 57 Reserved 58 DATE Manufacturing date of the product 0 65535 R W 59 NO Serial number of the product 0 65535 R W 60 HOUR Working hours of the product 0 65535 R W 61 HRLO Fractional value of hour 0 65535 R W 128 PV Process value R 129 HSPIL High limit set point 1 R 130 LSPI Low limit set point 1 R 131 T ABN Accumulated time during abnormal condition 0 6553 5 R 132 ALM Output 1 status 4 0 65535 R 140 PROG Program code 3 0 00 655 35 R 142 CMND Command code 0 65535 R W 143 JOB Job code 0 65535 R W 31 The scale high low values are defined in the following table for the parameters HSP1 LSP1 SP2 PV HI PV HO IN LO IN HI SHIF HSP L HSP H LSP L LSP H PV SV AOLO and AOHI Conditions Non linear Linear input Linear input Linear input Linear input input RESO 0 RESO 1 RESO 2 RESO 3 Scale low 1999 9 19999 1999 9 199 99 19 999 Scale High 4553 6 45536 4553 6 455 36 45 536 2 The scale high low values are defined in the following table for O1 HY and AL HY Conditions Non linear Linear input Linear input Linear input Linear input input RESO 0 RESO 1 RESO 2 RESO 3 Scale low 0 0 0 0 0 0 00 0 000 Scale High 6553 5 65535 6553 5 655 35 65 535 3 The PROG code is defined by 5 XX where XX denotes the software version number For example PROG 5 10 means the product is TEC 910 with software version 10 4 The least sig
22. cimal digits inLo Low scale value for Low 19999 High IN HI INLO linear Input Page 11 8 0 mr High scale value for T INHI linear Input Page 11 Low IN LO High 45536 100 0 SHF PV Shift offset 200 0 C 200 0 C 0 0 SPIF Value Low 360 0 F High 360 0 F 0 amp 0 second time constant 1 G 2 0 2 second time constant 2 amp 5 0 5 second time constant 3 1 second time constant FiLE pM 4 2 2 seconds time constant FILT Page 15 5 5 5 seconds time constant 2 6 O 10 seconds time constant 7 2 20 seconds time constant 8 32 30 seconds time constant 9 amp 60 seconds time constant 0 Hi High limit control outi Output 1 Function 1 Lo Low limit control 0 OUT1 2 Hi Lo High Low limit control 12 R0 Range e o1 H8 Output 1 Hysteresis i T o o 1 O1 HY Value Low 0 1 High 10 0 C 18 0 F 4 0 0 C iin Lower Limit of HSP1 Low 19999 High HSP H 82 0 F HSP H we 1000 0 C HSPH Upper Limit of HSP1 Low HSP L High 45536 1832 0 F LSP L 100 0 LSPL Lower Limit of LSP1 Low 19999 High LSP H C1 aS O LSP H 0 0 C LSBE Upper Limit of LSP1 Low LSP L High 45536 32 0 F Le 0 nonE No Function a DUIS Output 2 Function 1 dCP5 DC power supply output 2 oan RS 485 Communication 3 ALn Alarm Output 4 L Fin Limit Annunciator 5 i Fn Input Event 6 4 28 4 20 mA analog retransmission output 5 7 8 2G 0 20 mA analog re
23. conds Ad Step 1 S 4 seconds peser ADG Step 2 amp 4 4 seconds Step 3 Sj 4 seconds Y RESE CJG m Step A E 9 4 seconds Y IRESET gt Rt Step 5 6 4 4 seconds Y RESE SR ES Step 6 5 i 4 seconds Figure 5 1 Flow Chart for Manual Calibration Manual Calibration Procedures e Press Enter Key for six seconds to enter calibration mode See Figure 5 1 Step 1 Calibrate the Zero of the A to D converter Short terminal 4 and 5 then press for at least 4 seconds The display will blink for a moment until a new value is obtained If the display didn t blink then the calibration failed Step 2 Calibrate the Gain of the A to D converter Send a span signal to terminals 4 and 5 with the correct polarity The span signal is 60mV for thermocouple input 1V for 0 1V input 10V for 0 10V input and 20mA for 0 20mA input Press for at least 4 seconds The display will blink for a moment If the display didn t blink then cal ibration failed Step 3 Calibrate the offset of the cold junction compen sation Set up the equipment according to the following diagram for calibrating the cold junction compensation Note that a K type thermocouple must be used 5520A Calibrator K TC K rt Allow at least
24. ction DISP Normal display format PV HI Max historical PV PV LO Min historical PV T ABN Abnormal time Note 1 The flow charts show a complete listing of parameters For the actual application the number of available parameters are dependent on the setup conditions and should be less than that shown in the flow charts Note 2 Press LA key for 4 seconds to enable up down key function and extinguish the LOCK indicator 1 6 Limit Control Operation HIGH LIMIT OPERATION If Hi is selected for OUTI the unit will perform high limit control When power is applied the OUT1 relay is de energized After the 6 5 second self test period if the process is below the high limit set point HSP1 the output 1 relay will be energized and the OPI indicator will go off If the process goes above the high limit set point the relay will be de ener gized the OPI indicator will go on and the display will show the process value After the process falls below the high limit set point and the R key is pressed or the remote reset input 1s applied the relay will be energized and the OP1 indicator will go off HSP1 OUT1 Relay ON 1 OFF t A B C Reset is applied D o p d 1 3 Figure 1 4 High Limit Operation HIGH LOW LIMIT OPERATION If Hi Lo is selected for OUTI the unit will per form high low limit control When power is applied the OU
25. eplacement Figure 2 5 Thermocouple Input Wiring 2 7 RTD Input Wiring The RTD connections are shown in figure 2 6 with the compensating lead connected to ter minal 19 For two wire RTD inputs terminals 19 and 20 should be jumpered A three wire RTD offers the capability of lead resistance compensation provided that the three leads are of same gauge and equal length Two wire RTD should be avoided if possible for the purpose of accuracy A 0 4 ohm lead resistance of a two wire RTD will produce 1 C temperature error 2 8 Linear DC Input Wiring DC Linear voltage and linear current connections are shown in figure 2 7 and 2 8 0 60mV 0 1V 0 5V 1 5V IL 0 10V Figure 2 7 Linear Voltage Wiring SEE elk ex PUT Tes Three Wire RTD Two Wire RTD Figure 2 6 RTD Input Wiring 0 20mA or 4 20mA c Figure 2 8 Linear Current Wiring e AJ 5 amp 5 e e DID 13 2 9 Event Input Wiring Fol ole elale a co L3 e 4 isis w Open Collector Input 461 ek diell Mel elelee gE ia IM Switch Input Figure 2 9 Event Input Wiring The event input can
26. f the calibrator to 300 ohms Press co for at least 4 seconds The display will blink for a moment If the display didn t blink then calibration failed Input modification and recalibration procedures for a linear voltage or a linear current input 1 Change resistor R61 3 3K on the control board with the recommended values specified in Table 5 1 Low temperature coefficient resistors with 1 50ppm should be used for RA and RB Adjust the DIP switch according to Table 1 1 T C RTD 0 6OmV ak 0 5V 1 5V 324K 3 92K 0 10V 649K 3 92K 2 Perform step 1 to calibrate the linear input zero 3 Perform step 2 but send a span signal to the input terminals 4 and 5 instead of 60mV The span signal is 1V for 0 1V input 5V for 0 5 V or 1 5 V input 10V for 0 10V input and 20mA for 0 20mA or 4 20mA input 26 Chapter 6 Specifications Power 90 264 VAC 49 63 Hz 10VA 5W maximum 11 26VAC VDC 10VA 5W maximum Input Resolution 18 bits Sampling rate 5 times second Maximum rating 2VDC minimum 12VDC maximum 1 minute for mA input Temperature effect 1 5uV C Sensor lead resistance effect T C 0 2uV ohm 3 wire RTD 2 6 C ohm of resistance difference of two leads 2 wire RTD 2 6 C ohm of resistance sum of two leads Burn out Current 200nA Common Mode Rejection Ratio CMRR 120dB Sensor Break Detection Sensor open for TC RTD and mV inputs below 1mA for 4 20mA input below 0 25V for 1 5V input unavailable f
27. g power to the unit During power up a self test procedure will be performed within 6 5 seconds During the self test period all outputs are left off When the self test procedure is complete the unit will revert to normal operation Figure 1 3 Power Up Sequence LIMIT CONTROL OP1 OP2 T C PV HSP1 LSP1 SP2 LOCK JIR TEC 910 me temPco TEC 910 LIMIT CONTROL OP1 OP2 Fo C D IJ d F ICi PV HSP1 LSP1 SP2 LOCK MRJ xEC 910 LIMIT CONTROL OPi OP2 SE PV HSP1 LSP1 SP2 LOCK LIMIT CONTROL OP1 OP2 Cy R xEC 910 LIMIT CONTROL OP1 0P2 F e Je Hr c PV HSP1 LSP1 SP2 LOCK c 4 v R temPco TEC 910 LIMIT CONTROL OP1 OP2 F C wee 71 456 i PV HSP1 LSP1 SP2 LOCK c5 4 Gy RJ temPco TEC 910 All segments of display and indicators are left off for 0 5 seconds All segments of display and indicators are lit for 1 second Displays program code of the product for 1 second The diagram at left shows program no 1 with version 21 Displays date code for 1 second This diagram shows year 2001 month February date 25th This means that the product was produced on February 25th 2001 Note the month code is A for October B for November and C for December Displa
28. ge due to transit report it and file a claim with the carrier Write down the model number serial number and date code for future reference when correspon ding with our Service Department The serial number SN and date code D C are labeled on the box and the housing of the unit 2 2 Mounting Make the panel cutout according to the dimensions shown in figure 2 1 Remove the mounting clamps and screws and insert the controller into the panel cutout Reinstall the mounting clamp and screws Gently tighten the screws until the front panel fits snugly in the cutout eb wey Pa 1 25 32 46 mm t nel Cutout IS Panel 86 mm 94 mm Figure 2 1 Mounting Diagram 9 32 max 7 0 mm min qi ae qa Spade Connector for 6 Stud Figure 2 2 Lead Termination 2 3 Wiring Precautions e Before wiring verify the correct model number and options on the label Switch off the power while check ing e Care must be taken to ensure that the maximum voltage rat ing specified on the label is not exceeded e It is recommended that the power for these units be pro tected by fuses or circuit breakers rated at the minimum value possible e All units should be installed inside a suitably grounded metal enclosure to prevent live parts from being accessi ble to human hands and metal tools e All wiring must conform to appropriate standards of good practice and local codes and regulations Wiring must be suitable f
29. ht to modify specifications and designs without prior notice Not responsible for typographical errors 35 Complete Your Thermal Loop System With Over 100 000 Various Items Available from Stock Electric Heating Elements Videographic Data Recorders Thermocouples and RTD Assemblies Temperature Measurement SCR Power Controls Current Indicators Solid State Relays Thermocouple and Power Lead Wire Mechanical Relays Wiring Accessories TEMPCO s Visionary Solutions The Electric Heating Element Temperature Controls and Temperature Sensors Handbook REQUEST YOUR FREE 960 PAGE COPY TODAY Call 800 323 6859 or E mail info tempco com Specify Print Edition CD ROM or Both c Serving Industry Since 1972 Experience the Advantages of our Diverse and Innovative Products Mn K o TEMPCO Electric Heater Corporation p WF gt 607 N Central Avenue Wood Dale IL 60191 1452 USA Pee coro Tel 630 350 2252 Fax 630 350 0232 Committed to Excellence Web www tempco com Copyright 2013 TEHC All Rights Reserved 2P100E14 36
30. nciator If Output 2 is designated as an Limit Annunciator L_AN the output relay will track the Limit setpoint If the limit setpoint is or has been reached by the process value then the limit annunciator will be energized and the OP2 indicator LED will be lit and remain unchanged until the reset key or remote reset input is applied 3 13 Reference Data There are three reference data points stored by the control and accessed in the setup menu The reference data are read only data The maximum historical PV displayed by Pt which shows the maximum process value since the last UNLOCK operation The minimum historical PV displayed by P Zo shows the minimum process value since the last UNLOCK operation The abnormal time displayed by 45n which shows the total accumulated time minutes during the process which has been in abnormal condition since the last UNLOCK operation The values of the reference data will be initiated as soon as the RESET key is pressed for 4 seconds UNLOCK operation After the UNLOCK operation the PV HI and PV LO values will start from the current process value and T ABN value will start from zero 22 Chapter 4 Application An oven uses a single phase heater to heat the process A single loop tem perature control TEC 9100 is used to regulate the temperature A TEC 910 limit control is used to protect the process from being overheated The wiring diagram is shown below Temperature Control L N
31. nction 0 65535 R W 18 Reserved 19 Reserved 20 OI HY Output 1 hysteresis value 2 2 R W 21 Reserved R W 22 Reserved 23 Reserved 24 Reserved 25 Reserved 26 Reserved 27 Reserved 28 HSP L Lower limit of HSP1 R W 29 HSP H Upper limit of HSP1 R W 30 LSP L Lower limit of LSP1 1 R W 31 LSP H Upper limit of LSP1 R W 32 Reserved Register Parameter Parameter Scale Scale Notes Address Notation Low High 33 Reserved 34 AOFN Analog output function 0 65535 R W 35 OUT2 Output 2 function 0 65535 R W 36 Reserved 37 Reserved 38 Reserved 39 COMM Communication function 0 65535 R W 40 ADDR Address 0 65535 R W 41 BAUD Baud rate 0 65535 R W 42 PARI Parity bit 0 65535 R W 43 AOLO Analog output scale low E 2 R W 44 AL FN Alarm function 0 65535 R W 45 AL MD Alarm mode 0 65535 R W 46 AL HY Alarm hystersis value 2 2 R W 47 AL FT Alarm failure transfer 0 65535 R W 48 EIEN Event input function 0 65535 R W 49 DISP Normal Display format 0 65535 R W 50 AOHI Analog output scale high R W 51 ADO mV calibration low coefficient 1999 9 4553 6 R W 52 ADG mV calibration high coefficient 1999 9 4553 6 R W 53 CJTL Cold junction calibration low coefficient 199 99 455 36 R W 54 CJG Cold junction calibration high coefficient 1999 9 4553 6 R W 55 REF RTD calibration low coefficient 1999 9 4553 6 R W 56 SR RTD calibr
32. ng Addr No of words CRC16 Example 3 Perform reset function same effect as pressing t key Query 06 00 8E 68 25 HI LO Addr Func Starting Addr CMND 26661 CRC16 Example 4 Read 22 parameters at most one time Query 03 00 16 HI LO Addr Func Starting Addr No of words CRC16 Table A 1 Error Codes and Corrective Actions rror Display Error Description Corrective Action Code Symbol Communication error bad Correct the communication 10 E function code software to meet the protocol requirements 14 Communication error register Don t issue an over range address out of range register address to the slave Communication error attempt Don t write a read only data or a to write a read only data or a protected data to the slave protected data Communication error write a Don t write an over range data value which is out of range toa to the slave register register Input sensor break or input current below 1 mA if 4 20 mA is selected or input voltage below 0 25V if 1 5V is selected Replace input sensor A to D converter or related Return to factory fi ir component s malfunction eee FOr repair WARRANTY Tempco Electric Heater Corporation is pleased to offer sug gestions on the use of its products However Tempco makes no warranties or representations of any sort regard ing the fitness for use or the application of its products by
33. nificant bit LSB of ALM shows the status of output 1 LSB 1 if output 1 is ON normal condition The second bit of ALM shows the status of output2 7 4 Data Conversion The word data are regarded as unsigned positive data in the Modbus message However the actual value of the parameter may be a negative value with decimal point The high low scale values for each parameter are used for the purpose of such conversion Let M Value of Modbus message A Actual value of the parameter SL Scale low value of the parameter SH Scale high value of the parameter M 3535 a sr A SH SL s SL SH SL 65535 32 7 5 Communication Examples Example 1 Download the default values via the programming port The programming port can perform Modbus communications regardless of the incorrect setup values of address baud parity stop bit etc It is especially useful during the first time configuration for the controller The host must be set with 9600 baud rate 8 data bits even parity and 1 stop bit The Modbus message frame with hexadecimal values is shown as follows 1 Unlock the controller 06 oo s 68 2C HI LO Addr Func Reg Addr 2 Preset the first group of the parameters CMND 26668 CRC16 10 00 09 00 07 OE oo ot 00 00 Addr Func Starting Addr No of words Bytes INPT 1 UNIT 0 00 01 4E
34. or other inputs Sensor break responding time Within 4 seconds for TC RTD and mV inputs 0 1 second for 4 20mA and 1 5V inputs Characteristics Characteristics ens ag See sae EIS o x29 EET EE Pe eras e Tae NE Es Bes eo ESI ee PETS Dew p ewe e snam azua 3mAto27mA 0 0596 1 3V to 11 5V 0 0596 Table 6 1 Input Characteristics Event Input Triac SSR Output Logic Low 10V minimum 0 8V maximum Logic High 2V minimum 10V maximum Functions Remote reset remote lockout Output 1 Output 2 Relay Rating 2A 240VAC 200 000 life cycles for resistive load DC Voltage Supply Characteristics Installed at Output 2 Ripple Isolation Type Tol Max Output si eles Current Voltage Barrier 20V AO 5V 25 mA 0 2 Vp p 500 VAC 5V AO 15V 80mA 0 05 Vp p 500 VAC Rating 1A 240VAC Inrush Current 20A for 1 cycle Min Load Current 50mA rms Max Off state Leakage 3mA rms Max On state Voltage 1 5V rms Insulation Resistance 1000Mohms min at 500VDC Dielectric Strength 2500VAC for 1 minute 27 Data Communication Interface RS 232 1 unit RS 485 up to 247 units Protocol Modbus protocol RTU mode Address 1 247 Baud Rate 0 3 38 4 Kbits sec Data Bits 8 bits Parity Bit None even or odd Stop Bit 1 or 2 bits Communication Buffer 50 bytes User Interface 4 digit LED Displays 0 4 10 mm Keypad 4 keys Programming Port For automatic
35. or the voltage current and temperature rating of the system e Beware not to over tighten the terminal screws The torque should not exceed 1N m 8 9 Ib in or 10 KgF cm e Unused control terminals should not be used as jumper points as they may be internally connected causing dam age to the unit e Verify that the ratings of the output devices and the inputs as specified in chapter 6 are not exceeded e Except the thermocouple wiring all wiring should use stranded copper conductor with maximum gauge of 18 AWG Electrical power in industrial environments contains a certain amount of noise in the form of transient voltage and spikes This electrical noise can adversely affect the operation of microprocessor based controls For this rea son we strongly recommend the use of shielded thermo couple extension wire which connects the sensor to the controller This wire is a twisted pair construction with foil wrap and drain wire The drain wire is to be attached to ground at one end only OUT2 pala k L 90 264VAC RS 485 o A or 11 16VAC VDC 2 TAE rE Event Input n2 7 A NC 8 RTD no AS C B 4 o9 OUT i G B us cl g 15 2A 10 CAT Il 240VAC mn Notes 50 C max air ambient Use copper conductors except on T C input ASTM thermocouples USA the red colored lead is always negative Figure 2 3 Rear Termination Connection Di
36. rive and triac The input signal is digitized by using an 18 bit Analog to Digital converter Its fast sampling rate 5 times second allows the TEC 910 to control fast processes such as pressure and flow in addition to temperature RS 485 digital communication is available as an additional option This option allows the TEC 910 to be integrated with a supervisory control system An alarm output is 1 2 Ordering Code TEC 910 OOO 12 3 another option A variety of alarm functions and alarm modes can be programmed for a specific application The DC power supply output option is used for an external sen sor or transmitter The standard event input option can be programmed for remote reset or remote lock out signal input The limit annunciator option can be used to control an alarm buzzer Three different methods can be used to program the TEC 910 1 Use the keys on the front panel to program the unit manually 2 Use a PC and setup software to program the unit via the RS 485 port 3 Use a PC and configuration software to program the unit via the programming port High accuracy maximum flexibility fast response and user friendly operation are the main features of the TEC 910 high limit controller O 4 L Option Power Input L i 4 90 264 Vac 47 63 Hz 5 11 26 Vac or Vdc 9 Other Signal Input 1 Standard Input Thermocouple J K T E B R S N L C P RTD PT100 DIN PT100 JIS mV 0 60 mV 2 DC Volt
37. rve for Linear Type Process Value so tea snes a cacra a 17 Figure 3 2 Filter Characteristics 18 Figure 3 3 Normal Process Alatm 52i usas 19 Figure 3 4 Latching Process Alarm 19 Figure 3 5 DC Power Supply Application 21 Figure 3 6 Remote Reset Application 21 Figure 3 7 Remote Lock Application 22 Figure 4 1 Over Temperature Protection with Remote Reset eee en 23 Figure 5 1 Flow Chart for Manual Calibration 25 Figure 5 2 Cold Junction Calibration Setup 25 Figure 5 3 RTD Calibration esses 26 Table 1 1 Display Form of Character 3 Table 6 1 Input Characteristics 27 Table A 1 Error Codes and Corrective Actions 34 NOTES Chapter 1 Overview 1 1 General The TEC 910 limit control is an over temperature protec tion or a high limit safety device with a latching output that removes power in an abnormal condition when the process temperature is higher than the high limit set point or lower than the low limit set point The unit is powered by 11 26 or 90 264V DC VAC supply voltage incorporates a 2 amp form C relay for limit control a universal input which is fully programmable for PT100 thermocouple types J K T E B R S N L and 0 60mV and an option port is available for one of the following functions RS 232 RS 485 communication interface and Retransmission Alternative output options include SSR d
38. s 0 nonE No event function Efn Event input function 1 rESE Remote reset for output 1 EIFN output 1 on 1 2 Lo LE Remote lock for the unit d 5P 0 PY Process Value I DISP Normal display format 1 SP Set point 1 0 2 SAFE Display Safe PY Historical Max value of PV PV HI Page 23 Low 19999 High 45536 Polo Historical Min value of PV Low 19999 High 45536 PLLO Page 25 Efibn Accumulated Time during 1 c AGN abnormal condition Low 0 High 6553 5 minutes Chapter 2 Installation Dangerous voltages capable of causing death are sometimes present in this instrument Before instal lation or beginning any troubleshooting procedures the power to all equipment must be switched off and isolated Units suspected of being faulty must be disconnected and removed to a properly equipped workshop for testing and repair Component replacement and internal adjustments must be made by a qualified maintenance person only To minimize the possibility of fire or shock hazards do not expose this instrument to rain or excessive moisture Do not use this instrument in areas under hazardous conditions such as excessive shock vibration dirt moisture corrosive gases or oil The ambient temperature of the area should not exceed the maximum rating specified in chapter 6 2 1 Unpacking Upon receipt of the shipment remove the unit from the car ton and inspect the unit for any shipping damage If there is any dama
39. s in most air heated processes 2 6 Thermocouple Input Wiring Thermocouple input connections are shown in figure 2 5 The correct type of thermocouple extension lead wire or compensating cable must be used for the entire distance between the unit and the thermocouple ensuring that the correct polarity is observed throughout Junction terminal blocks or splices in the cable run should be avoided if pos sible If the length of the thermocouple plus the extension wire is too long it may affect the temperature measurement A 400 ohms K type or a 500 ohms J type thermocouple lead resist ance will produce approximately 1 C temperature error 12 Fuse e e Je e 9 5 90 264 VAC or L o 11 26 VAC VDC UJ Figure 2 4 Power Supply Connections Proper sensor type is also a very important factor in obtain ing precise measurements The sensor must have the correct temperature range to meet the process requirements In spe cial processes the sensor might have requirements such as leak proof anti vibration antiseptic etc Standard sensor limits of error are 4 F 2 C or 0 75 of the sensed temperature half that for special limits of error plus drift caused by improper protection or an over temper ature occurrence This error is far greater than controller error and cannot be corrected on the sensor except by proper selection and r
40. the Purchaser The selection application or use of Tempco products is the Purchaser s responsibility No claims will be allowed for any damages or losses whether direct indirect incidental special or consequential Specifications are sub ject to change without notice In addition Tempco reserves the right to make changes without notification to the Purchaser to materials or processing that do not affect compliance with any applicable specification TEC Temperature Controllers are warranted to be free from defects in material and workmanship for two 2 years after delivery to the first purchaser for use Tempco s sole responsibility under this warranty at Tempco s option is limited to replacement or repair free of charge or refund of purchase price within the warranty period specified This warranty does not apply to damage resulting from trans portation alteration misuse or abuse RETURNS No product returns can be accepted without a completed Return Material Authorization RMA form TECHNICAL SUPPORT Technical questions and troubleshooting help is available from Tempco When calling or writing please give as much background information on the application or process as possible E mail techsupport tempco com Phone 630 350 2252 800 323 6859 Note Information in this manual was deemed correct at the time of printing The policy of Tempco is one of continuous development and product improvement and we reserve the rig
41. transmission output 8 0 1V analog retransmission output 9 8 5 0 5V analog retransmission output 10 5 1 5V analog retransmission output 11 amp i G 0 10V analog retransmission output 0 8 3 0 3 Kbits s baud rate 1 2 6 0 6 Kbits s baud rate bBud Baud rate of digital 2 1 2 1 2 Kbits s baud rate communication 3 2 4 2 4 Kbits s baud rate BAUD Page 25 9 4 4 8 4 8 Kbits s baud rate 5 5 9 6 9 6 Kbits s baud rate 6 14 9 14 4 Kbits s baud rate 7 19 8 19 2 Kbits s baud rate 8 28 8 28 8 Kbits s baud rate 9 38 4 38 4 Kbits s baud rate Continued 10 Default we 0 2 Range m 0 E En 8 bit even parity a l Parity pitoi digital 1 odd 8 bit odd parity 2 nonE 8 bit none parity 0 PY Process Value Anal tput sly i a 1 HSP High Limit Set point 1 0 2 LSP I Low Limit Set point 1 folo Analog Output Low o l 0 0 C AOLO Scale Value Low 19999 High 45536 32 0 F AoH i 100 0 C alog Output High AOHI Scale Value s Low 19999 High 45536 212 0 F ALFn Alarm Function 0 P H A Process value high alarm AL FN 1 P L A Process value low alarm BLRd 6 norn Normal alarm action 0 ALLMD Alarm mode 7 LEch Latching alarm action I Nt Alarm hystersis value Low 0 1 High 10 C 18 F 0 1 BLFL 0 oF F Alarm Output goes off as AL FT Alarm failure transfer unit fails 1 1 on Alarm Output goes on as unit fail
42. tup menu are used limit the adjustment range 3 4 PV Shift In certain applications it is desirable to shift the controller display value PV from its actual value This can be easily accomplished with this control by using the PV shift function Cycle the unit to the SHIF parameter by using the scroll key in setup menu The num ber you adjust either positive or negative will be added to the actual value The SHIF function will alter the process variable PV only SHIF PV shift offset value 3 5 Digital Filter In certain applications the process value is too unstable to be read To improve this a programmable low pass filter is incorporated in the TEC 910 This is a first order filter with the time constant specified by the FILT parameter which is found in the setup menu The default value of FILT is set at 0 5 seconds before the unit is shipped Adjust FILT to change the time constant from 0 to 60 seconds 0 seconds means no filter is applied to the input signal The filter is characterized by Figure 3 2 below Figure 3 2 Filter Characteristics Time 3 6 Process Alarms If Output 2 is designated as an Alarm Output the alarm function AL FN can be setup for Process Value High Alarm PV H A or Process Value Low Alarm PV L A The process alarm sets an absolute trigger level When the process exceeds that absolute trigger level an alarm occurs The trigger level is determined by the setting of the set point 2 value SP2 and
43. ys the serial number 001 999 for 1 second Displays the hours used for 2 seconds The diagram at left shows that this unit has been used for 23456 7 hours since production 1 5 Menu Overview Setup Mode Press Press for 4 sec for 8 sec PV Value gt Calibration Mode SP1 or SAFE Sl HSP1 Value High limit setpoint 1 value a j INPT Input type UNIT Process unit RESO Display resolution Low scale value for linear 1 LSP1 Value Low limit IN HI High scale value for linear setpoint 1 input SHIF PV shift offset value FILT PV filter time constant OUT1 Output 1 function O1 HY Output 1 hysteresis value HSPL Lower limit of HSP1 HSPH Upper limit of HSP1 LSP L Lower limit of LSP1 LSPH Upper limit of LSP1 OUT Output 2 function Address for digital ADDR communiEaten BAUD Baud rate PARI Parity bit AL FN Alarm function AL MD Alarm mode AL HY Alarm hysteresis value value SP2 Value Set point 2 __ value EE 9j 9 I9 9 9j jo ja O KY KY KY AAAA AAAA AAAA AAA AAAA NANNAN AL FT Alarm failure transfer EIFN Event input fun
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