SSI America 7SL User's Manual
Contents
1. 6 c 11 A A No 1 OUT 2 OUT 1 7 NO_ 12ss 2 RS485 8l i3 c Nc 3 Q be OT 14 sge TC M DGIS 5 z38 10 5 15 5 A Measuring Inputs NOTE Any external components like Zener diodes etc connected between sensor and input terminals may cause errors in measurement due to excessive and or not balanced line resistance or possible leakage cur rents TC Input 10 NOTE When a relay output is used to drive an inductive load connect an external snubber network RC across the terminals R G o M o in accordance with the following table Load c R P Resistor and Current uF 9 VV Capacitor Voltage lt 40 mA 0 047 100 1 2 260 Vac lt 150 mA 0 1 22 2 260 Vac lt 0 5 Amp 0 33 47 2 260 Vac 7sl 1 00 p65 7 NOTE 1 Do not run input wires with power cables 2 For TC wiring use proper compensating cable preferably shielded see Thermocouple Compen sating Cable Color Codes 3 Shielded cable should be grounded at one end only 9 17 02 2 39 PM Linear Input NOTE 1 Do not run input wires with power cables 2 High line resistance can cause measurement errors 3 When shielded cable is used ground it at one end only to avoid ground loop currents 4 The input i2. m 3 mo DOC er DJE ee Kat 5 a H Oo Da o F cies D15 r Ea oiga Aiea 13 781 1 00 p65 13 9 17 02 2 39 PM CONFIGURATION REY FUNCTIONS RESET In Configuration Mode used only to scroll back parameters v Used in Configuration Mode to decrease the parameter value A Used in Configuration Mode to increase the parameter value FUNC Monitors Modifies parameters W A Loads the default parameters A FUNC or V FUNC Increases decreases values at a higher rate when modifying parameters A RESET or V RESET Jumps to the Maximum or Minimum parameter value when modifying parameters CONFIGURATION PROCEDURE 1 Remove the instrument from its case 2 Open switch V101 See illustrations under Prelimi nary Hardware Settings 3 Re insert the instrument in its case 4 Switch on power to the instrument The upper display will show COnF 5 Press the W key and the lower display will show the firmware version Press the FUNC key to start the configuration proce dure with the first parameter L1 Press the RESET key to start the configuration procedure with the last parameter d1 7sl 2 00 p65 14 The following is a complete list ofparameters The lower display will show the parameter code L1 to d1 and the upper display will show the selection code or numerical value No timeout is applied in the configuration mode L1 Serial Interface Protocol
3. ON j i ALM LED FLASH OFF El ACR ACK Alarm acknowledgment from AR parameter or serial link Alarm Status Relay energized P3 dir Relay de energized P3 rEV Example for P2 H L Alarm threshold No alarm status j i i l ON i H i ALM LED FLASH FLASH i OFF El ACR ACR ACK Alarm acknowledgment from AR parameter or serial link Hysteresis Alarm status Relay Alarm Status Relay energized P3 dir Relay de energized P3 rEV 7sl 2 00 p65 18 P3 Alarm Action Skipped if option not is available or P1 none dir Direct action Relay energized in alarm condition rEV Reverse action Relay energized in non alarm condition P4 Alarm Standby Function Skipped if option is not available or P1 none OFF Standby function disabled On Standby function enabled If the alarm is programmed as band or deviation this function masks the alarm condition at start up and ata Su setpoint change until the process variable reaches the alarm threshold plus or minus hysteresis This standby function masks a Process Alarm condition at start up until the process variable reaches the alarm threshold plus or minus hysteresis PF Time Constant for Filter on Measured Value for Alarm Action Skipped if option is not available or P1 none Range From 0 filter OFF to 8 seconds First order filter with selected time constant n 1 Safety L
4. Available only if P1 AL p AL b or AL d Lower display AA Upper display OFF ON Select ON and press the FUNC key in order to acknowledge the alarm ON Alarm Acknowledged OFF Alarm Not Acknowledged Software Key Skipped if n1 0 or 1 Lower display nn Upper display Numeric password to LOCK UNLOCK the device NOTE The upper display will initially show the LOCK status ON the device is LOCKED OFF the device is UNLOCKED Setpoint Threshold Lower display Su Upper display Setpoint threshold value Range Span limits From S1 to high span limit when C1 Hi Lo Setpointi Threshold Available when C1 Hi Lo Lower display S1 Upper display Setpoint threshold value Range From low span limit to Su Setpoint Threshold Hysteresis Lovver display HS Upper display Hysteresis value Range From 0 1 to 10 0 of span value or 1 LSD 781 3 00 p65 22 Alarm Threshold optional Available only if P1 AL P AL b or AL d Lower display AL Upper display Alarm threshold value Range Span limits if process alarm P1 AL P From O to 500 if band alarm P1 AL b From 500 to 500 if deviation alarm P1 AL d Alarm Hysteresis optional Available only if P1 AL P AL b or AL d Lower display HA Upper display Hysteresis value Range From 0 1 to 10 0 of span value or 1 LSD Serial Link optional The device can be connected to a host computer via serial link The host can put th
5. Skipped if option is not available OFF No serial interface nbUS Modbus jbUS Jbus L2 Serial Link Device Address Skipped if option is not available or L1 OFF From 1 to 255 NOTE The device can connect up to 31 instruments L3 Baud Rate for Serial Link Skipped if option is not available or L1 OFF Set value from 600 to 19200 baud 19200 baud is shown on display as 1920 L4 Byte Format for Serial Link Skipped if option is not available or L1 OFF 8E 8bits even parity 80 8 bits odd parity 8 8 bits without parity 9 17 02 2 40 PM i 0 TC J 1 TC K 2 TC T 3 TC E 4 TC N 55 TC S 6 TC R 1 TC B 8 TC L 9 TC U 10 TC G 11 TC D 12 TC C 13 TC Plat II 14 RTD Pt 100 15 Linear 16 Linear 17 Linear 18 Linear 19 Linear 20 Linear 21 Linear 22 Linear 23 TC J 24 TC R 25 TC T 26 TC E 27 TC N 28 TC S 29 TC R 30 TC B 31 TC L 32 TC U 335 TC G 34 TC D 35 TC C 36 TC Plat II 37 RTD Pt100 7sl 2 00 p65 From From From From From From From From From From From From From From From From From From From From From From From From From From From From From From From From From From From From From From 100 100 200 100 100 50 50 0 100 200 0 0 0 100 200 0 12 Input Type and Range Value to to to to to to to to to to to to to to to to to to to to to to to to to to to
6. ce O e Instruction Manual PN 31302 MODEL 7SL HIGH LOW LIMITROLS 1 16 DIN FOUR DIGIT HIGH LOW LIMITROL MODEL 07SL 91 000 0 0 0 Field No 1234 567 8 9 101112 13 14 15 Fields 1 through 4 BASE 07SL Limitrol High Low Limit shipped as High Limit Field 5 INPUT 9 TC types J R T E N S R B L U G D C and Platinel Il and Pt 100 RTD 0 to 20 mAdc and 4 to 20 mAdc 0 to 60 mVdc and 12 to 60 mVdc 0 to 5 Vdc or 1 to 5 Vdc 0 to 10 Vdc or 2 to 10 Vdc Note All inputs are factory calibrated and selectable by jumper Factory set at Type J 781 0 00 p65 2 Field 6 OUTPUT High Low Limit 1 Relay Form C Fields 7 8 ALARMS OPTIONS 00 None 10 One alarm Relay Form A 11 One alarm Relay Form A plus RS485 and one logic input Note vvhen code 11 is specified instrument length is 122 mm Field 9 POVVER SUPPLY 3 100 to 240 Vac 5 24 Vac Vdc Fields 10 through 15 RESERVED 9 17 02 2 35 PM Congratulations Unpack the Congratulations on your purchase of one of the easiest to Instrument configure high low Limitrols on the market Aftera3 step configuration procedure your process will be up and running Wiring Guide to simple set up S A Configuration To set up the Limitrol only 3 steps are required 1 Wire the instrument page 7 2 Configure the instrument page 14 3 Check the operating parameters page 22 Operating Paramet
7. 10 counts b Push the FUNC button b The upper display shows OFF the lower displays shows UL c Set calibrator to 0 000 V even if the minimum range value is 2 V d Push the A button the display changes to ON e After a few seconds start calibration by pushing the FUNC button When this calibration is complete the instrument will go to the next parameter UH 10 Volt Input Final Scale Value a Set the calibrator to 10 000 V b Push the A button the displays will show ON and 10UH c After a few seconds start calibration by pressing the FUNC button When this calibration is complete the instrument will go to the next parameter 34 7sl 6 00 p65 34 9 17 02 2 44 PM MAINTENANCE 1 2 3 oo 7 Remove power from the power supply terminals and from relay output terminals Remove the instrument from case Using a vacuum cleaner or acompressed air jet max 3kg cm remove dust and dirt which may be present on the louvers and on the internal circuits being careful to not damage the electronic components Clean external plastic or rubber parts only with a cloth moistened with ethyl alcohol pure or denatured C H OH or isopropyl alcohol pure or denatured CH CHOH or water H O Verify that there are no loose terminals Before re inserting the instrument in its case be sure it is perfectly dry Re insert the instrument and turn i
8. D Serial Interface For units built vvith optional RS 485 communication No m MA AYA s M T A B B R pal BB A U T E M COMMON E 13 N T es Maximum cable length 1 5 Rm 9 10 mile at 9600 baud NOTE According to ElA specification for RS 485 a The A terminal of the generator shall be negative vvith respect to the B terminal for a binary 1 MARR or OFF state b The A terminal of the generator shall be positive with respect to the B terminal for a binary 0 SPACE or ON state 7sl 1 00 p65 11 The RS 485 interface can connect up to 31 instruments with the remote master unit see below 9 17 02 2 39 PM l N m AA AJA S T R ie B B B B U COMMON N 13 T I N 11 S T R m U M 13 E N EE T taz 2 T i gt Z im E Power Line and grounding N L2 4 POWER SUPPLY 100 to 240 Vac 5 24 Vac Vdc R S T L1 N L2 R S T L1 NOTE 1 Before connecting the power line check that the voltage is correct see Model Number 2 For supply connections use 16 AWG or larger wires rated for at least 75 C 3 Use copper conductors only 4 Do not run input wires with power cables 5 Polarity does not matter for 24 Vdc wiring 6 The power supply input is not fuse protected Ple
9. away as possible from input or communication cables Relay output Protected by varistor OUT 1 Form C contact rating of 3 Amps 250 Vac resistive load OUT 2 Form A Contact rating of 2 Amps 250 Vac resistive load Number of operations 2 x 10 at the specified rating NOTES 1 To avoid shock and possible instrument damage connect power last 2 For power connections use 16 AWG or larger wires rated for 75 C 3 Use copper conductors only 4 Do not run input wires with power cables 781 1 00 p65 10 C 2 Inductive Loads High voltage transients may occur when switching induc tive loads Through internal contacts these transients may introduce disturbances which can affect the perfor mance of the instrument The same problem may occur when a switch is used in series with the internal contacts as shown below oe Lc E POWER LINE LOAD For all the outputs the internal protection varistor assures protection up to 0 5 Amp on inductive loads Itis good electrical practice to install an additional RC net work across and as close to the external contacts as possible The value of capacitor C and resistor R are shown in the following table Load c R P Resistor and Current uF Q W Capacitor Voltage lt 40mA 0 047 100 1 2 260 Vac lt 150mA 0 1 22 2 260 Vac lt 0 5 Amp 0 33 47 2 260 Vac 9 17 02 2 39 PM
10. to to to to to to to to to to to lt lt lt lt z3336 d d d ddddd ARAAAARARARARAA r2 Decimal Point Position Available only for linear range r1 15 to 22 No decimal One decimal place Two decimal places Three decimal places r3 Low Scale Range Value Available only for linear range r1 15 to 22 Range From 1999 to 9999 r4 High Scale Range Value Available only for linear range r1 15 to 22 Range From 1999 to 9999 r5 Offset Adjustment Range From 500 to 500 Offset value algebraically added to the measured value r6 Time Constant for Filter on Displayed Value Range From 0 filter OFF to 8 seconds First order filter with selected time constant r7 Alarm Action on Fault uP The alarm assumes an upscale reading doun The alarm assumes a downscale reading C1 Type of Limit Action Hi High limit for heating process Lo Low limit for cooling process Hi Lo Band limit for special process C2 Acknowledgment Mode O Theacknowledgment action is ignored if performed when setpoint is exceeded l The acknowledgment action is recognized also when the setpoint is exceeded In this case the control output is instantaneously restored when process variable is within setpoint 9 17 02 2 40 PM Control Output Function The relay output operates in fail safe mode relay de energized during reset condition and latching mode The control output turns OFF
11. 10 seconds in the Normal Display Mode The lower display shows the parameter identification code while the upper display shows the parameter value The value of these parameters can be modified with the A and V keys Press the FUNC key again to store the new value and advance to the next parameter If no keys are pressed within the timeout period see t1 the display will automatically return to the Normal Dis play Mode in the previous display and any modifications of the last displayed parameter will be lost 781 3 00 p65 21 21 All parameters except AA can be modified only when the device is UNLOCKed The LOCK UNLOCK status can be selected in configura tion using parameter n1 or during the operating mode with the parameter password To switch from LOCKED to UNLOCKED enter the n1 parameter setting To switch from UNLOCKED to LOCKED enter any number other than the n1 parameter setting When the device is in remote the serial link controls the device no parameters can be modified Key Functions in Parameter Display Mode FUNC Press the FUNC key again and the instrument stores the new setting if changed and goes to the next parameter Aorv Changes the setting of the selected parameter RESET Press and hold for more than 1 second to initiate reset 9 17 02 2 41 PM OPERATING PARAMETERS Some of the following parameters may not appear depending on the configuration Alarm Acknowledge
12. 4 and V pushbuttons buttons it is possible to select betveen ON and OFF To go to the next parameter vvithout modifying the calibration press the FUNC button when the display shows OFF To entera calibration value press the FUNC button vvhen the dis play shows ON Press the FUNC button to shov the first calibration code on the lower display Repeatedly press the FUNC button until the desired calibration parameter code appears NOTE by pushing the SMRT button it is possible to go back to a previous parameter without memorizing the new calibration Entering Calibration Values Following is a detailed sequential procedure for entering and checking values for each calibration parameter tL TC Input Initial Scale Value a Connect calibrator and instrument as shown in Figure 2 10 l 9 Figure 2 Calibrator Connection b The upper display shows OFF the lower displays shows tL c Set calibrator to 0 000 mV d Push the A button the display changes to ON e After a few seconds start calibration by pushing the 781 6 00 p65 31 31 FUNC button When this calibration is complete the instrument will go to the next parameter tH TC Input Final Scale Value a Set the calibrator to 60 000 mV b Push the A button the displays will show ON and tH c After a few seconds start calibration by pressing the FUNC button When this calibration is complete the inst
13. as shown in Figure 7 10 4 9 Figure 7 Calibrator Connection b The upper display shows OFF the lower displavs shows AL c Setcalibrator to 0 000 mA even ifthe minimum range value is 4mA d Push the A button the displav changes to ON e After a few seconds start calibration bv pushing the FUNC button When this calibration is complete the instrument will go to the next parameter AH Current Input Final Scale Value a Set the calibrator to 20 mA b Push the A button the displays will show ON and AH c After a few seconds start calibration bv pressing the FUNC button When this calibration is complete the instrument will go to the next parameter A Current Input Check The display shows A followed by a number showing the measured value in counts a Check the calibration linear by setting 0 000 mA the readout must be equal to A 000 00 10 counts 20 000 mA the readout must be equal to A 300 00 10 counts 10 000 mA the readout must be equal to A 150 00 10 counts b Push the FUNC button to go to the next parameter 33 7sl 6 00 p65 33 nL 5 VOLT Input Initial Scale Value a Connect calibrator and instrument as shown in Figure 8 10 l 9 Figure 8 Calibrator Connection b The upper display shows OFF the lower displavs shows nL c Set calibrator to 0 000 V even
14. autozero measurement When a fault is detected the output goes OFF and the alarm assumes an upscale downscale reading in accordance with r7 Error Messages On powerup the instrument performs a self diagnostic test When an error is detected the lower display shows an Er indication while the upper display shows the code of the detected error 7sl 4 00 p65 23 23 Error List 100 150 200 XXX 301 307 400 500 502 510 Error in EEPROM writing Short circuit on CPU s outputs Error on protect register in EEPROM Configuration parameter error Error on calibration of selected input rj input calibration error Error on operative parameter Error on autozero measurement Error on reference junction measurement Error during calibration procedure Dealing with Error Messages 1 When a configuration parameter error is detected repeat the configuration procedure of that specific parameter 2 If an error 400 is detected simultaneously press the V and A keys to load the default parameters and then repeat the control parameter setup 3 For all other errors contact your Service Representative 9 17 02 2 42 PM DEFAULT PARAMETERS Loading Default Operating Parameters The control parameters can be loaded with predeter mined default values These are the settings loaded into the instrument prior to shipment from the factory To load the default values proceed as follows a Press and hold the W key and press th
15. if C1 Hi Lo If this display was active at power down it will be active at povverup 4 The upper display shows the total time hh mm of the last reset condition while the lower displays shows t if no data is available the upper display will show The information is lost at power down and at powerup the device will display the process variable 5 The upper display shows the maximum value of process variable detected during the last reset con dition while the lower display shows Ph if no data is available the upper display will show This information is not available if C1 Lo The information is lost at power down and at powerup the device will display the process variable NOTE In case the reset condition was generated by a fault condition in the measure variable the upper display will indicate M Err 781 3 00 p65 20 20 6 The upper display shovvs the minimum value of the process variable detected during the last reset con dition while the lovver display shows PL if no data is available the upper display will show This information is not available if C1 Hi The information is lost at power down and at powerup the device will display the process variable NOTE incase the reset condition was generated by a fault condition in the measure variable the upper display will indicate M Er At powerup the display will show the process variable unless otherwise
16. key press the A key the display will show pag r LI J C e Press the A key to select Table 1 European or Table 2 American default parameters the display will show f Press the FUNC key the display will show I Mm L L LI J ILI This indicates that the loading procedure has been initiated After about 3 seconds the procedure is com plete and the instrument reverts to the COnF display The following is a list of the default configuration param eters loaded during the procedure 25 25 Default Configuration Parameter List PARA Table 1 Table 2 European American nbUS nbus 1 1 19200 19200 8E 8E Type J 100 to 1000 C Type J 150 to 1830 F 100 150 1000 1830 0 0 1 second 1 second uP uP Hi Hi 1 0 Auto Auto 0 0 1 second 1 second nonE nonE H A H A Ac rEV rEV OFF OFF 1 second 1 second 0 0 10 seconds 9 17 02 2 42 PM 30 seconds SPECIFICATIONS Case RABS Grey darh color RAL 7043 Self extinguishing degree VO according to UL 94 Front panel Designed and tested for IP65 and NEMA 4X for indoor location when panel gasket is installed Tests were performed in accordance with IEC 529 CEI 70 1 and NEMA 250 1991 STD Installation Panel mounting Rear T
17. when the setpoint is ex ceeded when C1 Hi or C1 Lo When C1 Hi Lo control output turns off when the process is greater than Su or less than S1 The control output remains OFF until the process is within setpoint and the acknowledge action has been performed the sequence of action may or may not be important depending on parameter C2 The upper display flashes when the setpoint is exceeded and returns to a steady display when the process is within setpoint When the control output is OFF the RESET LED is ON if C2 0 or flashes if C2 1 When C2 1 the RESET LED is steady ON when control output is OFF and acknowledged The reset condition can be stored in permanent memory see C4 Acknowledgment can be performed by pressing the RESET key by momentarily closing the external dry contact or by a command from the serial link The length of the reset condition and max min values detected are stored in memory and available for viewing until the next reset condition occurs The information is lost at power down During a reset condition the values are continuously updated and can be monitored 7sl 2 00 p65 16 Example of limit function when C1 Hi and C2 O HS 7 Setpoint XL NN r EET EA ES threshold i i i hysteresis Su IN Setpoint threshold ON F 1 tt Relay OUT 1 H jer di OFF l gt ON i ji i rm Reset LED l OFF Hi A Flash i I i Uppe
18. Maximum of 85 RH non condensing Thermocouple J K T E N S R B L U G D C Platinel Il RTD Pt100 mVdc Vdc mAdc The type of inputs are key board and jumper selectable 27 Range N oa o A co o 10 1 12 13 14 15 16 17 18 19 TC type J 100 to 1000 150 to 1830 F TC type K 100 to 1370 150 to 2500 F TC type T 200 to 400 330 to 750 F TC type E 100 to 800 150 to 1470 F TC type N 100 to 1400 150 to 2550 F TC type S 50 to 1760 60 to 3200 F TC type R 50 to 1760 60 to 3200 F TC type B 0 to 1820 C 32 to 3300 F TC type L DIN43710 1977 100 to 900 C 150 to 1650 F TC type U DIN43710 1977 200 to 600 330 to 1110 F TC type G W W 26 Re 0 to 2300 C 0 to 4170 F TC type D W 3 Re W 25 Re 0 to 2300 C 0 to 4170 F TC type C 0 to 2300 C 0 to 4170 F TC type Platinel II 100 to 1400 150 to 2550 F RTD PT100 200 to 850 330 to 1560 F Linear 0 to 20 mA Linear 0 to 60 mv Linear 0 to 5 V Linear 0 to 10 V 9 17 02 2 43 PM Source Impedance 100 2 maximum for TC mV input Less than 20 per wire for RTD input Input Impedance Greater than 1 MQ for TC mV input Greater than 400 KQ for 5V to 10V input range Less than 5 Q for mA input Cold Junction Automatic compensation from 0 to 50 C Digital Input Input from dry contact voltage free to restart process optional Control OUT 1 Relay form C 3 Am
19. V rms for 1 minute EC Compatibility Conforms with 89 336 EEC directives re garding electro magnetic compatibility Emission Complies with Generic emission standard EN50081 2 Immunity Complies with the generic im munity standard EN50082 2 Conforms with 72 23 EEC and 93 68 EEC directives regarding low voltage It complies with the safety requirements for electrical equip ment for measurement control and laboratory use Generic Standard EN61010 1 Installation Category II Keyboard Sampling Time 250 ms for linear input 500 ms for TC RTD input 9 17 02 2 43 PM Display Update Time 500 ms The display value can be filtered Reference Accuracy 0 2 fsv 1 digit 25 C and nominal power supply voltage Temperature Drift Less than 200 ppm C of full span for mV and TC ranges 1 2 4 5 9 14 CJ excluded Less than 300 ppm C of full span for mA Vand TC ranges 11 12 13 CJ excluded Less than 400 ppm C of full span for RTD range 15 and TC range 10 CJ excluded Less than 500 ppm C of full span for TC ranges 3 6 7 CJ excluded Less than 600 ppm C of full span for TC range 8 NOTE Precision and drift guaranteed for T gt 300 C 570 F Reference Junction Drift 0 1 C C Common Mode Rejection Ratio 120 dB 50 60 Hz Normal Mode Rejection Ratio 60 dB 50 60 Hz Ambient Temperature 0 to 50 C Storage Temperature Humidity Input m 7sl 5 00 p65 20 to 70 C
20. anual reset NOTE For band alarm H A H A Ac H L signifies outside band alarm while L A L A Ac L L signifies inside band alarm For every alarm configuration LED flashes relay placed in alarm status 7sl 2 00 p65 17 P2 H A Ac LED lit steady Al M i Relay in alarm status sti exists No LED flashing Ack Relay in alarm status Alarm LED off P2 L A clears Relay not in alarm status LED lit steady FE PEYAR s i Ak Relay not in alarm status sti exists No LED flashing Ack Relay in alarm status Alarm LED off Pe LAS clears Relay not in alarm status AG LED lit steady Alarm Relay in alarm status P2 H L still exists No LED flashing Ack Relay in alarm status LED OFF Ack Relay not in alarm status P2 LL Aam clears No LED flashing Ack Relay in alarm status Ack Alarm Acknowledgment For relay status see configuration parameter P3 Example for P2 H A Alarm Hysteresis PJ Nom z n threshold Alarm status FT R lt 5 Relay i No alarm status ON a ALM LED FLASH FLASH OFF ACK ACK Alarm acknowledgment from AK parameter or serial link Alarm Status Relay energized P3 dir Relay de energized P3 rEV 9 17 02 2 40 PM Example for P2 H A A c Alarm threshold Hysteresis 7 FLASH Alarm status Relay No alarm status
21. ase provide it externally Power Supply Type Current Voltage 24 Vac Vde T 500 mA 250 V 100 240 Vac T 125 mA 250 V When the fuse is damaged the instrument should be returned to your supplier to check the power supply 7 Safety requirements for permanently connected equipment Include a switch or circuit breaker in the installation Place the switch in close proximity to the equipment and within easy reach of the operator Mark the switch as the disconnecting device for the equipment NOTE A single switch or circuit breaker can drive more than one instrument 8 When the NEUTRAL line is present connect it to terminal 4 9 To avoid shock and possible instrument damage connect power last 7sl 1 00 p65 12 PRELIMINARV HARDWARE SETTINGS 1 Remove the instrument from its case 2 Set J106 according to the following table Input CTTC R192 180K SH120 Closed CH101 Open 9 17 02 2 39 PM J106 Input Type 7 8 T C RTD 0 60 mV 12 60 mV open standard configuration 0 5 V 1 5V open 0 10V 2 10 V open 0 20 mA 4 20 mA close Limitrol with RS 485 246 8 J106 El El El El LJ V101 G cw 135 7 gt l a wra a HB I 5 Limitrol without RS 485 J186 274 oo 0 o ho 30 5o 70
22. bit with without parity 1 stop bit Parity Even Odd Watch dog Hw Sw is provided for automatic restart Protection Internal dip switch for calibration and con figuration parameter protection 9 17 02 2 43 PM References UL 94 Tests for flammability of plastic materials for pans in devices and appliances CEI 70 1 IEC 529 Degrees of protection provided by enclo sures IP Code NEMA 250 1991 Enclosures for equipment 1000 Volts maximum Measurements and control instruments for panel mounting Nominal front and cut out dimensions Electromagnetic compatibility Generic emission standard Part 2 Industrial environment Limits and methods of measurement of radio disturbance characteristics of in dustrial scientific and medical ISM radio frequency equipment EN 50082 2 Electromagnetic compatibility Part 2 Industrial environment ENV50140 Electromagnetic compatibility Basic im munity standard Radiated radio frequency electro mag netic field Immunity test IEC 1000 4 2 Electromagnetic compatibility EMC Part 4 Testing and measurement tech nique Section 2 Electrostatic discharge immunity test EN 61000 4 8 Electromagnetic compatibility EMC Part 4 Testing and measurement tech niques Section 8 Power frequency magnetic field immunity test IEC 1000 4 4 Electromagnetic compatibility Part 4 Testing and measurement techniques Section 4 Electrical fast transient burst immunity t
23. e A key the displays will show or b Press either the V or A key the display will show L J I c Press the FUNC key the display will show 1 IDI e hee This indicates that the loading procedure has been initiated After about 3 seconds the loading procedure is complete and the instrument reverts to the Normal Display Mode The following is a list of the default operating parameters loaded during the procedure 24 7sl 4 00 p65 24 Default Operating Parameters List Parameter Default Value Alarm Acknowledge OFF Software Key Unlock Setpoint Threshold Low range value if low limit High range value if high or high low limit Setpoint Threshold Low range value Setpoint Threshold Hysteresis 0 1 Alarm Threshold Low range if process alarm 100 if deviation or band alarm Alarm Hysteresis 0 1 Loading Default Configuration Parameters The configuration parameters can be loaded with prede termined default values These are the settings loaded into the instrument prior to shipment from the factory To load the default values proceed as follows a Internal switch V101 must be open b The upper display will show r r LL L J c Press the W key the lower display will show the firmware version FC Luu crt MILI 9 17 02 2 42 PM 7sl 4 00 p65 d Still holding the W
24. e device in LOCAL parameters are controlled via keyboard or in REMOTE functions and parameters are controlled via serial link REMOTE is signified by the decimal point to the left of RMT which is on the right side of the numeric display Via serial link it is possible to read and or to modify allthe operative and configuration parameters The following conditions must apply to implement this function 1 Configure parameters L1 through L4 with the front keyboard 2 The device must be in the Operating mode Control output is OFF during the download procedure At the end of configuration downloading procedure the device preforms an automatic reset and returns to normal condition 9 17 02 2 41 PM ERROR MESSAGES Overrange Underrange and Sensor Break Indications This device detects process variable faults OVERRANGE UNDERRANGE OR SENSOR BREAK When the process variable exceeds the span limits established by configuration parameter ri an OVERRANGE condition will appear as L i An UNDERRANGE condition will appear as CI D DI A sensor break is signaled as OPEN On the mA V input a sensor break can be detected only when the range selected has a zero elevation 4 20 mA 12 60 mV 1 5 V or 2 10 V On the RTD input shrt is signalled when input resis tance is less than 15 Q short circuit sensor detection This device detects reference junction errors or errors on the internal
25. ent can be mounted on a panel up to 15 mm 0 591 in thick with a square cutout of 45 x 45 mm 1 772 x 1 772 in For outline refer to Dimensions and Panel Cutout Panel surface texture must be better than 6 3 umm The instrument is shipped with a rubber panel gasket 50 to 60 Sh To assure the IP65 and NEMA 4 protection insert the panel gasket between the instrument and the panel as shown below Install the instrument as follows 1 Insert the instrument in the gasket 2 Insert the instrument in the panel cutout 3 Pushing the instrument against the panel insert the mounting bracket 4 Torque the mounting bracket screws between 0 3 and 0 4 Nm 2 66 and 3 54 Ibf in 5 To insure NEMA 4X IP65 protection make sure the instrument does not move within the cutout m 7sl 1 00 p65 5 W su R SU Su RRON SU 9 17 02 2 39 PM L DIMENSIONS AND PANEL CUTOUT 1 890 in 48 mm ___ 48 mm 1 890 in 75mm 10mm 2 953 in 0 0 394 in 60 mm ede in 45 mm 0 0 6 mm 1 772 in 0 0 024 in EE 7sl 1 00 p65 45mm 0 0 6 mm 1 772 in 0 0 024 in Il qg Mila Es 122 mm 4 803 in w RS 485 105 mm 4 134 in w o RS 485 9 17 02 2 39 PM II WIRING GUIDELINES Terminal Lavout
26. enths of C Make sure the display readout is equal to the value read on the measuring device Then push the FUNC button to go to the next parameter PL RTD Input Initial Scale Value a Connect a resistor box and the instrument as shown in Figure 5 8 9 10 Figure 5 Resistor Box Connection 7sl 6 00 p65 32 b Set 0 00 Q on the resistor box c Push the A button the displays show ON and PL d After a few seconds start calibration by pushing the FUNC button When this calibration is complete the instrument will go to the next parameter PH RID Input Final Scale Value a Set resistor box to 375 00 Q b Push the A button the displays will show ON and PH c After a few seconds start calibration by pressing the FUNC button When this calibration is complete the instrument will go to the next parameter P RTD Check The display Figure 6 shows P followed by a number showing the measured value in counts P 300 00 Figure 6 RTD Calibration Check Display a Check the calibration linear by setting 0 00 Q the readout must be equal to P 000 00 10 counts 125 000 Q the readout must be equal to P 101 90 10 counts 375 00 Q the readout must be equal to P 300 00 10 counts b Push the FUNC button to go to the next parameter 9 17 02 2 44 PM sill AL Current Input Initial Scale Value a Connect calibrator and instrument
27. erminal Block 15 screw terminals with safety rear cover Dimensions Unit with RS 485 communications DIN 43700 48 x 48 mm x 122 mm 1 890 x 1 890 in x 4 803 in Dimensions Unit without RS 485 communications DIN 43700 48 x 48 mm x 105 mm 1 890 x 1 890 in x 4 134 in Cutout 45 x 45 mm 1 772 x 1 772 in Weight 250 g 8 75 oz Upper Display 4 digits 7 segment red LED s with decimal point 7 62 mm high 0 3 in Lower Display 2 digits 7 segment red LED s with decimal point 7 62 mm high 0 3 in 2 red LED annunciators for RESET Indicates control output status as follows a With configuration parameter C2 0 LED ON when Output is OFF LED OFF when Output is ON b With configuration parameter C2 1 LED flashes when Output is OFF LED ON when Output is OFF and acknowledged LED OFF when Output is ON Indicator 7sl 5 00 p65 26 ALM indicates alarm status as follows Flashes when alarm is ON ON when alarm has been acknowledged OFF when alarm is OFF RMT Adecimal point on the right side of the upper display flashes to indicate the device is controlled by serial link Four keys covered by polyester mem brane labelled RESET A V 8 FUNC Power Supply 100 to 240 Vac 50 60 Hz switching or 24 Vac Vdc with interruptions less than 100 ms Power Supply Variation 15 to 10 for 100 to 240 Vac 10 to 10 for 24 Vac Vdc Power Consumption 8 VA max Insulation Resistance Greater than 100 MQ Insulation Strength1500
28. ers H i Y 7sl 0 00 p65 3 9 17 02 2 35 PM Table of Contents 1 16 DIN FOUR DIGIT HIGH LOW LIMITROL 2 Guide to simple set up MOUNTING REQUIREMENTS DIMENSIONS AND PANEL CUTOUT WIRING GUIDELINES PRELIMINARY HARDWA CONFIGURATION KEY FUNCTIONS a CONFIGURATION PROCEDURE 14 OPERATING MODE Normal Display Mode Indicators 20 Rey Functions in Normal Display Mode Parameter Display Mode Key Functions in Parameter Display Mode OPERATING PARAMETERS nn ERROR MESSAGES DEFAULT PARAMETERS SPECIFICATIONS CALIBRATION PROCEDURE General Guidelines Calibration Parameters Procedure ae Entering Calibration Values MAINTENANCE 781 0 00 p65 4 CAUTION USE WIRE SUITABLE FOR 75 C MINIMUM NOTES For supply connections use No 16 AWG or larger wires rated for at least 75 C Use copper conductors only Class 2 wiring must be a minimum of 1 4 inch from any Class 1 conductors 9 17 02 2 35 PM MOUNTING REQUIREMENTS Select a mounting location vvith the follovving characteristics 1 Minimal vibration 2 An ambient temperature range between 0 and 50 C 32 and 122 F 3 Easy access to the rear of the instrument 4 No corrosive gases sulfuric gas ammonia etc 5 No water or other fluid i e condensation 6 Relative humidity of 20 to 80 non condensing The instrum
29. est DIN 43700 EN 50081 2 EN 55011 781 5 00 p65 29 29 ENV50141 Electromagnetic compatibility Basic im munity standard Conducted disturbances induced by radio frequency fields Immu nity test DIN 43710 1977 Thermocouples Reference table Thermocouples Part 1 Reference table Thermometer Reference table IEC 584 1 DIN 43760 9 17 02 2 43 PM CALIBRATION PROCEDURE Calibration parameters are logically divided into groups of two parameters each initial scale value and final scale value A calibration check is provided after entering the values of each group Itis also possible to perform a calibration check without making an entry press the FUNC button twice when OFF is displayed The instru ment goes directly to the group check Before beginning calibration be sure the internal DIP switch V101 is open WARNING Perform the calibration procedure according to J106 jumper positions as shown in Figure 1 Other wise the stored calibration values may be lost J106 jiput MPE 12 1341 56 78 TVC RID 0 60 mV 12 60 mV open standard configuration open open 0 5 V 1 5V close open open 0 10V 2 10 V open close open open open close SH120 Closed CH101 Open Figure 1 J106 Settings General Guidelines a The instrument should be mounted in its case in order to keep the internal temperature constant b Ambienttemperature shou
30. if the minimum range value is 1V d Push the A button the display changes to ON e After a few seconds start calibration bv pushing the FUNC button When this calibration is complete the instrument will go to the next parameter nH 5Voltinput Final Scale Value a Set the calibrator to 5 000 V b Push the A button the displays will show ON and nH c After a few seconds start calibration bv pressing the FUNC button When this calibration is complete the instrument will go to the next parameter n 5 Volt Input Check The display shows n followed by a number showing the measured value in counts a Chech the calibration by setting 0 000 V the readout must be equal to n 000 00 10 counts 5 000 V the readout must be equal to n 300 00 10 counts 2 500 V the readout must be equal to n 150 00 10 counts b Push the FUNC button to go to the next parameter 9 17 02 2 44 PM UL 10 VOLT Input Initial Scale Value U 10 Volt Input Check a Connect calibrator and instrument as shovvn in The display shows 10UH followed by a number show Figure 9 ing the measured value in counts 10 j a Check the calibration by setting zana 0 000 V the readout must be equal to rm U 000 00 10 counts 9 10 000 V the readout must be equal to U 300 00 10 counts 5 000 V the readout must be equal to Figure 9 Calibrator Connection U 150 00
31. ldbe stable Avoid drift due to air conditioning or other mechanical devices c Relative humidity should not exceed 70 d Minimum warm up time of at least 20 minutes e Operate as much as possible in a noise free environment 781 6 00 p65 30 f during calibration connect one input at a time to the rear terminal block g Use calibrators vvith the follovving Accuracy TC Input 0 005 output 0 001 range 5 mV RTD Input 0 02 0 0025 Q decade CJ Compensation better than 0 1 C Current Transformer 0 1 mA AC rms Resolution TC Input 1 mV RTD Input 10 ma CJ Compensation better than 0 1 C Current Transformer 0 1 mA AC rms Calibration Parameters Follovving is a complete list of calibration symbols Code Parameter tL TC Input Initial Scale Value tH TC Input Final Scale Value t TC Input Check rJ Cold Junction Compensation rJ Cold Junction Compensation Check PL RTD Input Initial Scale Value PH RTD Input Final Scale Value P RTD Input Check AL Current Input Initial Scale Value AH Current Input Final Scale Value A Current Input Check nL 5 Volt Input Initial Scale Value nH 5 Volt Input Final Scale Value n 5 Volt Input Check UL 10 Volt Input Initial Scale Value UH 10 Volt Input Final Scale Value U 10 Volt Input Check 9 17 02 2 44 PM Procedure Switch on the instrument the upper display will show COnf Press the A button the upper display will show CAL Using the
32. mpedance is equal to Less than 5 Q for 20 mAdc input Greater than 1 MQ for 60 mVdc input Greater than 400 RO for 5 Vdc and 10 Vdc input 781 1 00 p65 8 RTD Input RTD RTD o o Col o o NOTE 1 Do not run RTD wires with power cables 2 Ground shielded cable at one end only 3 Use the correct size copper wires 4 The resistance of the 3 wires must be the same B Logic Input This input is used as a remote reset Safety note Do not run logic input wiring with AC power cables Use an external contact with a contact rating greater than 0 5 mA 5 Vdc The instrument needs 100 ms to recognize a contact status variation Logic input 14 e e 9 17 02 2 39 PM Thermocouple Compensating Cable Color Codes Thermocouple Material British B American ANSI MC 96 1 German DIN 43710 French NFE 18 001 J L Iron Constantan K Nickel Chromium Nickel Aluminum Platinum Platinum 13 Rhodium Platinum Platinum 10 Rhodium Chromel Constantan Platinum 30 Rh Platinum 6 Rh Nicrosil Nisil 781 1 00 p65 9 17 02 2 39 PM C 1 Relay Outputs NO OUT 1 OUT 1 1 C OUT1 Class 1 2 NC OUT 1 3 NO The cable used for relay output wiring must be as far
33. ock c UNLOCKed The device is always UNLOCKed and all parameters can be modified LOCKed The device is always LOCKed and no parameters can be modified From 2 to 9999 This number is a password to be used in run time see nn to LOCK UNLOCK the device 9 17 02 2 40 PM ti Timeout Selection tn10 10 second timeout tn30 30 second timeout d1 Digital Input contact closure This is a read only parameter Enb Digital input enabled diS Digital input disabled The digital input is used as a remote process restart The configuration procedure is now complete The display should show COnF 7sl 2 00 p65 19 9 17 02 2 40 PM OPERATING MODE 1 Remove the instrument from its case 2 Set switch V101 to the closed position 3 Re insert the instrument in its case 4 Switch on the instrument Normal Display Mode On powerup the device starts in the Normal Display Mode By pressing the A or V key it is possible to change the displayed information therefore one of the follovving display modes can be selected 1 The upper display shovvs the measured value vvhile the lovver display shows the Pu Process variable 2 The upper display shows the setpoint threshold while the lower display shows Su If this display was active at povver dovvn it vvill be active at povverup 3 The upper display shows the setpointi threshold while the lovver display shows S1 This information is available only
34. p 250 Vac resistive load with varistor on contacts Relay operates in failsafe mode High limit for heating process Low limit for cooling process High Low limit for special process Acknowledgment Mode To restart the process two conditions must apply a The process returns within setpoint b The operator has acknowledged the process from keyboard digital input or serial link The a and b sequence may or may not matter depending on C2 see C2 Power Up Mode Automatic or Manual restart When in automatic restart the control outputis guar anteed OFF for 1 second Setpoint Threshold Span limits Threshold hysteresis From 0 1 to 10 0 of span value or 1 LSD whichever is greater Limit Type OUT 2 Relay form A 2 Amp 250 Vac resistive load OUT 2 is used as alarm output optional 7sl 5 00 p65 28 Alarm Function Process alarm Deviation alarm Band alarm Tvpe of Alarm High Low Outside Inside if band alarm Direct Reverse Automatic Manual reset Standbv sequence No standbv sequence Alarm Threshold Span limits for process alarm From 0 to 500 digits for band alarm From 500 to 500 digits for deviation alarm Alarm Hvsteresis From 0 1 to 10 0 of span value or 1 LSD whichever is greater Serial Interface RS 485 Opto isolated optional Protocol Type Modbus Jbus RTU mode Device Address From 1 to 255 NOTE The interface can support up to 31 devices Baud Rate 600 up to 19200 baud Format 1 start bit 8
35. r display FLASH FLASH Steady I A B c A B C Acknowledgment action by RESET button digital input or serial link NOTE Acknowledgment B has no effect Example of limit function when C1 Hi and C2 1 Su Setpoint threshold Hysteresis ON ioe Relay OUT 1 i H OFF ON Reset LED OFF Flash Upper displav Steadv FLASH FLASH FLASH FLASH A B A B Acknowledgment action by RESET button digital input or serial link 9 17 02 2 40 PM C3 Reset at Power up Auto Automatic reset nAn Manual reset C4 Reset Memory 0 The reset condition will be saved at next power up it will be reactivated The reset condition will be lost in case of power down C5 Time Constant for Filter on Measured Value for Reset Action Range From 0 filter OFF to 8 seconds Note First order filter with selected time Constant P1 Alarm Function Skipped if option not available nonE Not provided AL P Process alarm AL b Band alarm AL d Deviation alarm When C1 Hi Lo AL b and AL d are not available P2 Alarm configuration Skipped if option is not available or P1 none H A High alarm with automatic reset L A Low alarm with automatic reset H A Ac High alarm with automatic reset and acknowledge L A Ac Low alarm with automatic reset and acknowledge H L High alarm with manual reset L L Low alarm with m
36. rument will go to the next parameter t TC Input Check The display Figure 3 shows t followed by a number showing the measured value in counts t 300 00 Figure 3 TC Calibration Chech Display a Check the calibration linear by setting 0 000 mV the readout must be equal to 1 000 00 10 counts 60 000 mV the readout must be equal to t 300 00 10 counts 30 000 mV the readout must be equal to t 150 00 10 counts b Push the FUNC button to go to the next parameter rJ Cold Junction Compensation NOTE Make sure tL and tH are correctly calibrated before attempting rJ calibration a Measure the temperature close to terminals 9 and 10 using an appropriate instrument for example MEMOCAL See Figure 4 9 17 02 2 44 PM 10 l d 9 Figure 4 Measure Temperature Near Terminals Measuring Device b Wait a few minutes to allow temperature stabilization of the entire svstem compensation cable sensor calibrator and instrument c The displavs show rJ and OFF Using the V or 4 button make the readout value equal to the temperature measured by the measuring device in tenths of C d After a few seconds start calibration by pushing the FUNC button When this calibration is complete the instrument will go to the next parameter rJ Cold Junction Compensation Check The displays show rJ and the cold junction temperature in t
37. stated in one of the above display options If at power off the device was in reset condition and configured to save it C4 0 and or it was programmed for manual reset at startup C3 1 then at the next power up the lower display will be flashing Indicators RESET Indicates control output status as follows a With configuration parameter C2 0 LED ON when Output is OFF LED OFF when Output is ON b With configuration parameter C2 1 LED flashes when Outputis OFF LED ON when Output is OFF and acknowledged LED OFF when Output is ON Indicates alarm status as follows Flashes when alarm is ON ON when alarm has been acknowledged OFF when alarm is OFF ALM A 9 17 02 2 41 PM ME zli Key Functions in Normal Display Mode FUNC By pressing it the display changes from Normal Display Mode to Parameter Display Mode Pressing it for more than ten seconds initiates the Lamp Test During the Lamp Test the device functions normally while all display segments and LED s are lit with a 50 duty cycle No timeout is applied to a lamp test Press the FUNC key again to end the Lamp Test A or W By pressing these keys it is possible to change the displayed information See Normal Display Mode on previous page RESET Press and hold for 1 second to initiate reset Parameter Display Mode The FUNC key initiates the Parameter Display Mode when pressed for less than
38. t ON 7sl z 00 p65 35 35 9 17 02 2 46 PM 170 IU0 LHL S00 02 SSi Super Systems Cincinnati OH 800 666 4330 http www supersystems com Manual Part No 31302 7SL 7sl z 00 p65 36 Copyright 2001 Super Systems Inc 9 17 02 2 46 PM
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