DIGITAL PANEL METER N30U TYPE USER`S MANUAL
Contents
1. 1 Choice of the measured value compensation Concerns only the _4 9999 99999 work in the mode of temperature or resistance measurement The wire linking the meter with the sensor defines the resistance for RTD sensors however for thermocouples the compensa tion is defined by the cold junc tion temperature The choice of a value beyond the range causes the switching of the automatic compensation on Introduction of values 0 20 causes the switching of the manual compensation on for the resistance or tempera ture measurement by means of HTD resistance thermometers 0 60 C causes the switching of the manual compensation on for thermocouples The measurement time is expressed in seconds The result on the display presents the mean value counted in the Cnt1 period This parameter is not taken into consideration during the measurement in counter modes Table 2 Number of points of the individual characteristic For a value lower than 2 the individual characteristic is switched off The number of segments is the number of points decreased of one The individual characteristic is not taken into consideration in the CountH and HoUr modes The point value for which we will expect 19999 99999 Yn n point number Expected value for Xn 19999 99999 18 Table 3 Parameter m Minimal position of the decimal point When displaying the measured value display format This para2. tE r R thermocouple of R type tE S S thermocouple of S type 0_10U voltage measurement range 10 V 20A current measurement range 20 mA O 60n voltage measurement range 60 mV HoUr current time 4001 w r Reserved 4002 w r Heserved Measurement time expressed in seconds This time defines the averaging time of the measured RA wir 1 3600 value The displayed value is the mean value calculated from the Cnt1 period 4004 w r Reserved 4005 w r Reserved 4006 w r Reserved 4007 w r Reserved 32 Number of points of the individual characteristic For the value 1 the individual characteristic 4008 IndCp 21 is switched off Segments of the individual characteristic are defined by parameters Xn and Yn where n point number Minimal position of the decimal point when 4009 d P i 4 displaying the measured value Value Description 0 0 0000 1 00 000 2 000 00 0000 0 00000 Display colour when the displayed value is smaller than coLLo 4010 Coldo wi 2 Descnpuon red green orange Display colour when the displayed value is higher than coLLo and smaller than coLHi 4011 CoLbE wi Description red green orange Display colour when the displayed value is higher than coLHi 4012 CoLUp wir w Value Description red green orange p
3. that the event took place Events can be only erased Bit 15 Break of the supply Bit 14 Re set of the RTC clock Bit 13 Not used Bit 12 Lack of communication with data memory Bit 11 Wrong settings 4048 Status w r 0 65535 Bit10 Manufacturer s setting restored Bit 9 Lack of measured values in data memory Bit 8 Not used Bit 7 Output plate is detected Bit 6 Output plate error or lack of calibration Bit 5 Not used Bit 4 Not used Bit 3 Wrong configuration of the individual characteristic Bit 2 Not used Bit 1 Not used Bit O Averaging period is not elapsed Meter status Describes the current state of the meter Successive bits represent the given event The bit set on 1 means that the event took place Events can be only cancelled Bit 15 Not used Bit 14 Not used Bit 13 Not used 4049 Status2 w r Bit 12 Not used Bit 11 Not used Bit 10 Not used Bit 9 Not used Bit 8 Not used 37 Bit 7 LED4 Signaling of alarm nr 4 Bit 6 LED3 Signaling of alarm nr 3 Bit 5 LED2 Signaling of alarm nr 2 4049 Status z o Bit 4 LED1 Signaling of alarm nr 1 Bit 3 Status of the alarm relay nr 4 Bit 2 Status of the alarm relay nr 3 Bit 1 Status of the alarm relay nr 2 Bit O Status of the alarm relay nr 1 Table 10 7200 7600 19999 99999 Lower display colour The value is placed in two suc cessive 16 bit registers These registers i
4. Features of the N30U meter display colour individually programmed in three intervals programmable thresholds of displayed overflows 2 NOC relay alarms operating in 6 modes 2 switched relay alarms with a switching contact operating in 6 modes option signaling of measuring range overflow e automatic setting of the decimal point programming of alarm and analog outputs with the reaction on the selected input quantity main or auxiliary input real time clock with the function of the clock supply support in case of the meter supply decay programmed averaging time function of walking window with the averaging time up to 1 hour monitoring of set parameter values locking of introduced parameters by means of a password recount of the measured quantity on the base of the 21 point individual characteristic service of the interface with MODBUS protocol in the RTU mode option conversion of the measured value into a standard programmable current or voltage signal option highlight of any measuring unit acc to the order e signaling of alarm operation switching the alarm on causes the highlight of the output number e galvanic separation between connections alarm supply input analog output output of the auxiliary supply RS 485 interface Protection grade from frontal side IP65 Meter overall dimensions 96 x 48 x 93 mm with terminals The meter casing is made of plastic 7
5. Fig 1 View of the Digital Meter 2 METER SET The set is composed of xL 1 pc SAIS Sl e Manual E 1 pe AUN AW WSS CGC ER 1 pc Set of clamps to fix the meter in the 4 pcs deor labels with Units usas cec caso iere ee tico tede ca 2 pcs zd EE 1 pc When unpacking the meter please check whether the type and execu tion code on the data plate correspond to the order 6 3 BASIC REQUIREMENTS OPTIONAL SAFETY In the safety service scope the N30U meter meets the requirements of the EN 61010 1 standard Mentioned below applied symbols mean especially important one must acquaint with this information before connecting the meter The non observance of notices marked by this symbol can occasion injures of the personnel and a damage of the instrument One must take note of this when the instrument is working inconsistently to the expectations Possible consequences if disregarded Observations concerning the operational safety N All operations concerning transport installation and commissioning as well as maintenance must be carried out by qualified skilled personnel and national regulations for the prevention of accidents must be observed Before switching the meter on one must check the correctness of connections Do not connect the meter to the network through an auto
6. To obtain the connection to the computer a RS 485 interface card or a suitable converter is indispensable e g PD51 or PD10 The connection way of devices is shown on the fig 12 A Computer B N30U meter N30U meter N30U meter Fig 12 Connection Way of the RS 485 interface The designation of transmission lines for the card in the PC computer depends on the card producer 29 6 2 Description of the MODBUS Protocol Implementation The implemented protocol is in accordance with the PI MBUS 300 Rev G of Modicon Company specification Set of the serial link parameters of N30U meters in MODBUS protocol e meter address 1 247 e baud rate 4800 9600 19200 38400 57600 115200 bit s e work mode RTU z ramk w formacie 8n2 8 1 801 8n1 e maximal response time 100 ms The parameter configuration of the serial link consists in the settlement of the baud rate bAUd parameter device address Addr parameter and the format of the information unit prot parameter Notice Each meter connected to the communication network must have e unique address different from addresses of other devices connec ted to the network e identical baud rate and type of information unit 6 3 Description of Applied Functions Following MODBUS functions have been implemented in the N3OU meter e O3 readout of the register group O4 readout of input registers O6 write a signle register 16 wri
7. the resignation of the write JoMssed yun 99 euin y p y Jo SEGUE UBIIUBIH jo des uononpoJju At 83 yun 298 135 jndino owed indio y eu AAA jo puy Jo puly Been jo piouseuu jo adAy sjndino p JOMO _ appe v dA Huy luy uv d Hoddns Soy i8m0 jo edAj 4 7031 Vd d viv ployseJu Ajquenb Buijeubis jddn semo hindujo ed 031 HJd V d riv pjouseJul jquenb lt 2831 zHid cV ev uuJeje JO PIOUS9JUI Kinuenb Guijeubis jaddn joadky La41 LHid LV d bv Era ANO O9 nojoo jurod 0100 Jo JnoJoo Jno JnoJoo Pac seiuj _ 19981 9 pP IN EWIUIIN IH109 01109 dnjo9 eq109 d P onsu Aqulod X ojoeJeuo 9joeJeuo pIAIpUI y Jo y Jo PIAIpul PIAIpUI jo jo juiod 1527 1uiod 1527 y Jo 8U Jo JequinN Julo
8. this menu all programmable meter parameters are only ava ilable for readout In this mode the menu Ser is not available The exit from the monitoring menu is carried out by means of the button In the monitoring menu parameter symbols are displayed alternately with their values The service algorithm of the meter is presented on the fig 7 13 181 OW NOEN 24 Jo 7 i ur 19940102 uonduosul piomssed 00014 a oul eui jo 19e4109u SU euululuJ jo Kejdsiq ewu plJomssed eui Jo eui Jo 3 eui 9 spuooes Ce CZJCE gt en eA INSAWSYNSVAW jo Ke dsiq spuooes e 25 JO 14 5 4 Programming The pressure of the button and holding it down through ca 3 seconds causes the entry to the programming matrix If the entry is pro tected by a password then the safety code symbol SEC is displayed alternately with the set value 0 The write of the correct code causes the entry in the matrix the write of an incorrect code causes the display of the ErCod symbol The matrix of transitions to the programming mode is presented on the fig 8 The choice of the level is made by means
9. 510 in relation to the individual character value istic a s l EMF measured on meter terminals 7022 7511 uv when measuring temperature by means of thermocouples Resistance measured on the mean line only for the resistance measure Ohm ment or when measuring temperature by means of resistance thermometers B 7 UPDATING OF SOFTWARE Function enabling updating of software from the computer of the PC with software LPCon was implementation in meter N30U from ver sion of software 1 10 in the realization with the interface RS485 Free software LPCon and update files are accessible on the side www lumel com pl The connected to the computer convertor RS485 is required on USB to the updating e g the convertor PD10 b LUMEL UPDATER v 1 05 x File Device Parameters Options Updating Language Help e em 4 pen Save Options Load Gy of par Alarm 4 Analog output Access code amp clock sing of status Send Refresh COMS RTU 8N2 9600 1000ms a 1 Identification Pie 13 42 Device N30 U COM5 M Disconnect File Z N30U_1_Ti hex zl Messages Port opened Device found N30 U v 1 10 File opened Sending data please wait Done 00 01 23 225555 ok Program view a LPCon b updating of software Warning Before doing update curre
10. DIGITAL PANEL METER N30U TYPE USER S MANUAL CE Contents o RE N C APPLICATION AND METER DESIGN 5 6 BASIC REQUIREMENTS OPERATIONAL SAFETY 7 INSTALLATION waciki aua enini i UN d cu aad fn 8 SERVIGE DD cd cL cn RD abd es 11 185 INTERFACE iva Davos 28 UPDATING OF SOFTWARE 42 p ERROR CODES 4d TECHNICAL DATA cecidi en donar ien ceno eo 45 ORDER CODES ditis ai ERR 48 MAINTENANCE AND 50 User s manual for meters with firmware version gt 2 00 1 APPLICATION AND METER DESIGN The N30U meter is a programmable digital panel meter destined for measurements of signals originating from standard sensors destined for temperature measurements and for the measurement of analog standard signals applied in automation Additionally meter enables the indication of the current time The readout field is a LED display which allows the exposition of results in colours red green and orange The measured input signal can be arbitrary converted by means of a 21 point individual characteristic
11. V for remaining circuits altitude above sea level 2000 m 47 10 ORDER CODES Table 14 Supply 85 253 V 45 65 HZ rens 1 20 40V a c 40 400 Hz 20 60 V d c 2 Additional outputs mo 0 OC output 5485 analog outputs 1 OCoutput 5485 analog outputs switched relay outputs 2 Unit unit code number acc tab 15 XX Version Sao GONNA ___ __ gt 00 custom Mmade XX Language OI P ae ROZA E OE X Acceptance tests without extra quality requirements eee aa aaa aaa aaa aaa aaa aa aaaaaziaainsii 0 with an extra quality inspection certificate 1 acc e ustomer s request iR resi C LASS A XE EA opis X after agreeing with the manufacturer ORDER EXAMPLE the code N30U 1 0 26 00 E 0 means N30U programmable digital meter type 1 supply 85 253 V a c d c 45 65 Hz 0 lack of additional outputs 26 unit acc to the table 3 00 standard version E English language 0 without extra quality requirements 48 Code of the highlighted unit Table 15 1 after agreeing with the manufacturer 49 11 MAINTENANCE AND GUARANTEE The N30U digital panel meter do
12. ayed overflow the meter still carries out the measurement e he meter controls currently the value of the introduced parameter at the moment In case when the introduced value overflows the upper range given in the table 1 the meter will make automatically the change into the maximal value Similarly in case when the introduced value overflows the lower change range given in the table 1 the meter will make automatically the change into the minimal value 5 4 6 Display Format The N3OU meter adapts automatically the display format precision to the value of measured quantity So that the function could be fully used one must choose the format 0 0000 then the meter will display the me asured value with the possible highest accuracy This function does not operate for the time display where the format is set automatically The current time mode HOUr is displayed in the 24 hours format in the shape hh mm where hh current hour and mm current minute Caution Remember that the display with a higher resolution is not al ways desired it can conduct to a deterioration of the indication stabi lity 26 5 5 Manufacturers Parameters Standard settings of the N30U meter are presented in the table 7 These settings can be restored by means of the meter menu through the choice of the option Set from the menu Ser Table 7 Level in the matrix 0 m 0 0 ee 19999 99999 1000 ar P_A1 P_A2 P_A3 P_A4 tYP1
13. d 1514 1514 LZA LZH LH uones Ayquenb jueuJeJ peunsee N 10 Jo d L Fig 8 Programming Matrix 16 5 4 2 Changing Floating Point Values The change is carried out in two stages the transition to the next stage follows after pressing the button 1 setting the value from the range 19999M 99999 similarly as for integral values 2 setting of the decimal point position 00000 0000 0 000 00 00 000 0 0000 the 4 button shifts the decimal point to the left however the button shifts the decimal point to the right The pressure of the button during the change of the parameter value will cause the resignation of the write 5 4 3 Characteristic of Programmed Parameters Programmed parameters and the range of their quantity changes are presented in the table below Table 1 Parameter Description Range of changes Pt1 Pt100 5 Pt500 Pt10 Pt1000 rEZL measurement of resistance up to 400 Q rEZH measurement of resistance up to 4000 Q tE J J Fe CuNi tE h NiCr NiAI Kind of the connected input tE n N NiCrSi NiSi signal tE E E NiCr CuNi tE r R PtRh13 Pt tE S S PtRh10 Pt O 10U voltage measurement range 10 V 20A current measurement range 20mA O 60n voltage measurement range 60mvV HOUr current time if
14. e individual characteristic 7316 7658 Dm 19999 99999 Pointnr 15 7318 7659 19999 99999 Expected value for the point nr 19 Point of the individual characteristic 320 7660 neo wir 19999 99999 7322 7661 19999 99999 Expected value for the point nr 20 Point of the individual characteristic 7324 7662 19999 99999 Point nr21 7326 7663 19999 99999 Expected value for the point nr 21 40 6 6 Registers Only for Readout Table 11 Write Name w i Name of the quantity readout Constant identifying the device The value 183 means the N30U meter Status is register describing the current state of the meter 16 bit registers These registers include the same data as 32 bit registers from the area 7500 The value is placed in 32 bit registers The value placed In two successive 7000 7500 identifier po f It is a register defining the control of the 7006 7503 Minimal value of the currently displayed value Maximal value of the currently 7010 7505 Currently displayed value value BE Wire Password of analog to digital 7016 7508 RAA przetwornika analogowo cy rowego Temperature of terminals the mea Terminal LL M ore temperature surement is only carried out during the temperature measurement by means of thermoelectric sensors or during time measurements 41 11 Mess red Measured value not recalculated 7020 7
15. efault settings have been restored Press any button to ErdEF transit to a normal work ErCAL 44 9 TECHNICAL DATA Measuring ranges Table 13 Pt100 Pt500 205 855 C 200 850 C Pt1000 4000 4000 Q Thermocouple of J type Thermocouple of K type 0 1 lt lt lt lt Thermocouple of N type Thermocouple of E type Thermocouple of R type Thermocouple of 5 type Voltage input O 10 V 1435 18 V 10 40 24 24 mA 20 20 mA 10 63 mV 0 60 mV 00 00 23 59 0 5 sec 24 h Current imput Voltage input 60 mV Current time Poo P500 ______ Poo 40000 Thermocouple of J type Thermocouple of K Thermocouple of N type Thermocouple of E type __ Thermocouple of R type Thermocouple of S type Voltage input 0 10V _ Curentimput _______ Voltage input 60 mV ____ Additional error of automatic thermocouple cold junction temperature compensation lt 1 C of automatic wire resistance compensation for thermoresistors lt 0 5 C of automatic wire resistance compensation for resistance measurement lt 0 20 of temperature changes for analog outputs 50 of the class 10K for analog inputs 100 96 of the class 10 K Inputs parameters resistance of the supply input V gt 1MQ resistance of the current input mA 12 10 current flowing through the resistance thermometer 270 10 uA resistance of wires connecting
16. es not require any periodical mainte nance In case of some incorrect operations LE From the Shipping Date During the Period Given in the Annexed Guarantee Card One should take the meter down from the installation and return it to the Manufacturer s Quality Control Dept If the meter has been used in compliance with the instructions the Manufacturer warrants to repair it free of charge After the Guarantee Period One should turn over the meter to repair it in a certified service workshop The disassembling of the casing causes the cancellation of the granted guarantee Our policy is one of continuous improvement and we reserve the right to make changes in design and speci fications of any products as engineering advances or necessity requires and revise the above specifications without notice 50 oT LUMEL LUMEL S A ul Stubicka 1 65 127 Zielona G ra Poland Tel 48 68 45 75 100 exchange Fax 48 68 45 75 508 http www lumel com pl N30U 09A Export Department Tel 48 68 45 75 302 or 304 Fax 48 68 325 40 91 e mail exportQlumel com pl
17. f the value YES causes the write of standard no do nothing parameters into the meter YeS causes the write of The value of manufacturer s manufacturer s settings parameters is presented in the table 7 Setting of the current time The introduction of a wrong time cancels the introduction of time 0 00 23 59 The introduced value is not taken On unit highlight switched on Off unit highlight switched off Highlight of the unit Introduction of a new password SEC The introduction of the value O 0 60000 switches the password off Ze Display test The test consists in YeS causes the test start a successive lighting up of digital 9 The pressure of the display segments Alarm diodes and unit highlighting diodes should be lighted no do nothing 5 4 4 Individual Characteristic N30U meters can recalculated the measured value into any value thanks to the implemented individual characteristic function The indivi dual characteristic rescales the input signal measured according to the set characteristic The way of the individual characteristic interaction on the meter operation has been presented on the fig 9 Displayed value Measured Individual pna value characteristic aeg outputs Control of alarms interface RS 485 Fig 9 Action of the Individual Characteristic The user can introduce maximally twenty functions through giving inter vals and expec
18. h to preserve the following depen dence H1 H2 H3 Hn If the above is not fulfilled the individual characteristic function will be automatically switched off will not be realized and a diagnostic flag will be set in the status register 5 4 5 Alarm types The meter is equipped with 2 alarm outputs with contact make contact and two alarm outputs with NOC NCC contact make and break contact option Each of alarms can work in one of the six modes The work of alarms in modes is presented in the fig 12 n on n off on off Two remaining modes h on and h off mean suitably always switched on and always switched off These modes are destined for the manual simulation of alarm states Alarm Alarm output output Output switched off Output switched on Output Output switched off switched on gt p PrL PrH Measured PrL PrH Measured quantity quantity a n on b n off Alarm Aa output output Output switched Output switched od Output switched off p PrL PrH Measured PrL PrH Measured quantity quantity C on d off Fig 11 Alarm Types a n on b n off c on d off E Caution N e n case of alarms of n on n off on off types the write of PrL gt PrH will cause the alarm switching off e n case of a measuring range overflow the reaction of the relays is compatible with written PrL PrH tYP parameters In spite of the dis pl
19. hen meter is power on Warning Power loss during firmware update could result permanent meter damage 43 8 ERROR CODES After switching the meter to the network or during the work messages about errors can appear Messages about errors and their reasons are presented below Table 12 Error message Description Overflow of upper value of the measuring range value or the programmed indication range The message can also mean a break in the sensor circuit thermocouples or resistance thermometers Overflow of lower value of the measuring range value or the programmed indication range The message can also mean a shorting in the sensor circuit thermocouples or resistance thermometers Communication error with the data memory Contact the service workshop Parameter error Wrong configuration data Manufacturer s settings will be restored after pressing any button Error of measured values stored by the meter measured maximal and minimal values Press any button to transit to a normal work After pressing the button during 1 sec the ErdEF message will be displayed Lack of calibration of analog outputs Press any button to transit to the normal work Analog outputs will not be serviced Contact the service workshop Error of calibration The work is stopped The meter is not in the state to carry out measurements in a correct way Incorrect checksum of calibration coefficients or lack of calibration D
20. imensions 4 1 Lead out of Signals Signals led out on the meter connectors are presented on the fig 4 Circuits of successive groups of signals are separated between them Additional output signals option G gt O gt RS 485 A mA OC O 85 253 VZ RPT 24 V 60 mV max 30 mA Thermocouples Fig 4 Description of Signals on Connection Strips e 0 10 V input for the measurement 10 V voltage e GND mass for the 0 10 V input and 0 20 mA input e 0 20 mA input for the measurement of 20 mA current e 60 mV TC input for the measurement of 60 mV voltage or for the connection of RTD sensors e R PT input for the resistance measurement or for the connection of RTD sensors The compensation wire has been marked by a broken line e OC open collector output of npn type signaling of the measuring range overflow 4 2 Examples of Connections An example of the N30U meter connection to different signals is pre sented on the fig 5 Standard signals 0 10 V and 0 20 mA Thermocouple Voltage 0 60 mV gt O lt Z E T 5 gt 60 mV Resistor RTD sensor Resistor RTD sensor in a two wire system in a three wire system R PT Thermocouples Connection of a two wire Connection of a three wire transducer 4 20 mA transducer 0 10 V gt O 85 253 V gt O 85 253 V Fig 5 Ways ofthe meter Connection F
21. input 1 clock 35 4030 tYPa m Type of analog output Description voltage input O 10 V current input 0 20 mA current input 4 20 mA Description 4800 bit s 9600 bit s 19200 bit s 38400 bit s 57600 bit s 115200 bit s Description RTU 8N2 RTU 8E1 RTU 801 RTU 8N1 Meter address The write of the value O causes the interface switching off Update transmission parameters Causes the application of introduced RS 485 interface settings Write of standard parameters Description without changes set standard parameters Description without password Entry in parameters preceded by a request about the password 65 9 259 Creme This parameter occurs in the ggmm format where gg means hours mm means minutes The introduction of a wrong hour will cause the setting of 23 however the introduction of wrong minutes will generate the setting of the value 59 36 4038 unit w r 0 1 Switch on off the unit highlight Value Description 0 highlight swiched off 1 highlight swiched on 4039 w r 0 1 Reset of extrem values Value Description 0 no change 1 Reset of min and max values Reserved Meter status Describes the current state of the meter Successive bits represent the given event The bit set on 1 means
22. le 4 Support of alarm signaling In the situation when the support function is switched on After the alarm state retrea the signaling diode is not blanked It signals the alarm state till its blank ing moment by means of the oFF function switched off on function switched on bination This function concerns only and exclusively the alarm signaling thus relay contacts will operate without support accord ing to the chosen type of alarm Table 5 Parameter EN InP1 main input indicated Input quantity which the analog value output has to react on Hour real time clock 10U voltage 0 10 V Type of analog output O0 20A current 0 20 mA 4 20A current 4 20 mA Lower threshold of the analog output give the value on which we want to obtain the minimal 19999 99999 value of signal on the analog Output Upper threshold of the analog output give the value on which we want to obtain the maximal 19999 99999 value of signal on the analog output 10 V or 20 mA 21 cd Table 5 4 8 4800 bit s 9 6 9600 bit s 19 2 19200 bit s 38 4 38400 bit s 57 6 57600 bit s 115 2 115200 bit s Baud rate of the RS485 interface Type of transmission frame of the RS 485 interface Address in the MODBUS net work The write of the value O 0 247 switches the interface off Table 6 Parameter Write of manufacturer s settings The setting o
23. meter is not taken into consideration during tCountH and HoUr modes Display colour when the displayed value is ower than CoLLo Display colour when the displayed rEd red CoLbE value is higher than CoLLo and lower grEEn green than CoL Hi orAnG orange Display colour when the displayed value is higher than CoL Hi Lower threshold of colour change 19999 99999 Upper threshold of colour change 19999 99999 Lower threshold of display narrowing Values below the declared threshold ovrLo are signaled on the display by the 19999 99999 _____ S Upper threshold of display narrowing Values above the declared threshold ovrHi are signaled on the display by the sss elg dele Table 4 ALr1 ALr2 13 74 Parameter 2 InP1 Main input indicated Input quantity steering the alarm value HoUr Real time clock 19 20 Alarm type Fig 11 presents the graphical imaging of alarm types Lower alarm threshold Upper alarm threshold Delay of alarm switching cd Table 4 n on normal transition from 1 n oFF normal transition from 1 on switched on oFF switched off H on manually switched on till the change time of the alarm type the alarm output remains switched on H oFF manually switched off till the change time of the alarm type the output alarm remains switched off for good 19999 99999 19999 99999 0 32400 cd Tab
24. nclude the same data as 32 bit registers from the area 7600 The value is placed in 32 bit registers 7202 7601 CoLHI 19999 99999 Upper threshold of the display colour change Lower threshold of the display Upper threshold of the display 1206 7603 19999 99999 narrowing 1208 PRL 1 Lower threshold of alarm 1 7210 7605 PrH1 w r Upper threshold of alarm 1 7 Teo wr 19999 00050 Unperhwesho o semi 38 ra 7601 wr 19995 2056 Uspertwesoorama reas sers 1 29 0090 Upper tresbld o analog out me 7615 wir Resevea oi me 7616 0 0000 Resevea m ron UU ms mw w ram 7619 w oso mo 7620 0 6000 Reseed rate r w eo oof Point of the individual characteristic 7246 7623 19999 99999 Expected value for the point nr 1 Point of the individual characteristic 7250 7625 19999 99999 Expected value for the pointnr2 value for the point nr 2 Point of the individual characteristic 7254 7627 19999 99999 Expected value for the pointnr 3 value for the point nr 3 Point of the individual characteristic 7258 7629 19999 99999 Expected value for the point nr 4 Point of the individual characteristic 7262 7631 Seat we bart 19999 99999 Expected value for the poi
25. nt nr 5 Point of the individual characteristic 7266 7633 ERE 19999 99999 Expected value for the point nr6 Point of the individual characteristic 7270 7635 19999 99999 Expected value for the pointnr7 value for the point nr 7 Point of the individual characteristic 7274 7637 19999 99999 Expected value for the point nr 8 Point of the individual characteristic y 7284 7642 7288 7644 2 ma 9 9999 99999 Expected value for the point nr 9 Point of the individual characteristic 9999 99999 Point nr 10 1 Point of the individual characteristic 9999 99999 Point nr 12 19999 99999 Expected value for the point nr 12 Point of the individual characteristic 19999 99999 Pointiar 15 19999 99999 Expected value for the point nr 13 Point of the individual characteristic 19999 99999 Pantnr 14 1 7298 7649 19999 99999 Expected value for the point nr 14 1 Point of the individual characteristic 19999 99999 Point nr 15 19999 99999 Expected value for the point nr 15 Point of the individual characteristic 19999 99999 Point nr 16 Point of the individual characteristic 7308 7654 19999 99999 Polntnr 17 7310 7655 Y17 wir 19999 99999 Expected value for the point nr 17 Point of the individual characteristic 7312 7656 Pm 19999 99999 Point nr 18 7314 7657 19999 99999 Expected value for the point nr 18 Point of th
26. ntly settings of meter should be saved by program LPCon because when software is updated default settings of meter are restored After starting LPCon s software COM baudrate transmission mode and adress should be set It can be done in Options Then N30U meter should be selected from Device Push icon Load to read and save current settings Open window Lumel Updater LU figure 13b from Updating Updating of devices firmware Push Connect Update progress is shown in Messages section Text Port opened appear after correctly opened port Putting meter in update s mode can be done in two ways remote from LU with settings from LPCon port baudrate transmission mode and adress or by turning power on while button pressed updating by standard communication parameters baudrate 9600 kb s mode 8N2 AL1 led signals that device is ready for update LU will show message Device found with name and cur rent version of firmware Using button a valid file should be selected If the file is correct message File opened will show Send button should be pressed During firmware update AL1 AL4 leds indicate process progress If firmware update is successful device starts normal opera tion and message Done and update duration will show Close LU and go to Restoration of manufacturer s parameters Select checkbox and press Apply button Next press Send button to restore previously read parameters Current firmware version can be checked w
27. of the button however the entry and moving through the para meters of the chosen level is carried out by means of the 4 44 buttons Parameter symbols are displayed alternately with their current values In order to change the value of the chosen parameter one must use the button For resignation from change one must use the button In order to exit from the chosen level one must chose the symbol and press the button To exit from the programming matrix one must press the button during ca 1 second Then the symbol End appears for ca 3 seconds and the meter transits to the display of the measured value In case of leaving the meter in the parameter programming mode the automatic abandon of the programming mode follows parameter and next the menu after 30 seconds and the meter transits to display the measured value 5 4 1 Value Change Way of the Selected Parameter In order to increase the value of the selected parameter one must press the 4 button A single pressure of the button causes the increase of the value of 1 The increase of value when displaying the digit 9 causes the set of on this digit The change of the digit follows after pressing the button In order to accept the set parameter one must hold down the button Then the write of the parameter follows and the display of its symbol alternately with the new value The pressure of the button during the change of the parameter value will cause
28. or the connection of input signals in environments with a high noise level one must apply shielded wires 10 5 SERVICE 5 1 Display Description Alarm indexes Measured value Backlighted Averaging period gt unit has not elapsed Value increase Resignation button button Value change Acceptation button button Fig 6 Description of the Meter Frontal Plate 5 2 Messages after Switching the Supply on After switching the supply on the meter displays the meter name N30U and next the program version in the r x xx shape where x xx is the number of the current program version or the number of a custom made execution Next the meter carries out measurements and displays the value of the input signal The meter sets up automatically the decimal point position when displaying the value The format number of places after the decimal point can be limited by the user 11 5 3 Functions of Buttons Acceptation button entry in programming mode hold down 3 seconds moving through the menu choice of level entry in the mode changing the parameter value acceptation of the changed parameter value stop the measurement when holding down the button the result is not updated The measurement is still carried out button increasing the value display of maximal value The pressure of the button causes the display of the maximal value during ca 3 seconds en
29. tYP2 tYP3 tYP4 PrL1 Pre PrL3 PrL4 Level in the matrix _ ___ PrH1 PrH2 PrH3 PrH4 DD 2000 dLY1 dLY2 dLY3 dLYA OLEO off 6 INTERFACE RS 485 N30U programmable digital meters have serial links in RS 485 stan dards for the communication in computer systems and with other de vices fulfilling Master function An asynchronous communication cha racter protocol MODBUS has been implemented on the serial link The transmission protocol describes ways of information between devices through the serial link 6 1 Connection Way of the Serial Interface The RS 485 standard allows to a direct communication of 32 devices on a single serial link of 1200 m long at baud rate 9600 b s For the 26 connection of a higher quantity of devices it is necessary to apply ditional intermediate separating systems e g PD51 converter The lead out interface line is presented on the fig 4 obtain a cor rect transmission it is necessary to connect lines A and B in parallel with their equivalents in other devices he connection must be made through a shielded wire The wire shield must be connected to the pro tection terminal in the nearest possible neighbourhood of the meter connect the shield only in a single point to the protection terminal The GND line serves to the additional protection of the interface line at long connections Then one must connect GND signals of all devices on the RS 485 bus
30. te of the register group 17 identification of the slave device 30 6 4 Register The register map of the N30U meter is presented below Notice given addresses are physical addresses In some computer pro grams logic addressing is applied then addresses must be increased of 1 Table 8 Range SR 4000 4049 integer 16 bits Value placed in a 16 bit register Value placed in two successive 16 bit registers Registers include the 7000 7039 float 32 bits same data as 32 bit register from the area 7500 Registers are only for readout Value placed in two successive 16 bit registers Registers include the 7200 7326 float 32 bits same data as 32 bit register from the area 7600 Registers can be read out and written Value placed in a 32 bit register TOUS TS Registers are only for readout Value placed in a 32 bit register 7600 7663 float 32 bits Registers can be read out and written 31 6 5 Registers for Write and Readout The value is placed in 16 bit registers write w readout r Table 9 Description Input type Pt100 Pt5 Pt500 Pt10 Pt1000 rEZL Resistance range 400 rEZL Resistance range 4000 9 tE J J thermocouple of J type tE h thermocouple of type tE n N thermocouple of N type 05 N tE E thermocouple of E type
31. ted values for successive points The programming of the individual characteristic consists on the defi nition of the number of points which the input function will be linearized by On must remember that the number of linearizing functions is of one 23 smaller than the number of polnts Next one must program successive points by giving the measured value Hn and the expected value cor responding to it value which has to be displayed Yn The graphic in terpretation of the individual characteristic is presented on the fig 10 Expected value Y10 Y7 Y6 Y5 Y4 Y3 Y2 Y1 H1 H2 H3 H4 H5 H6 H7 H8 H9 H10 Measured value Input function Linearized function Hys 10 Individual Characteristic During the function approximation one must remember that for the ap proximation of functions strongly differing from the linear characteristic higher the number of linearizing segments smaller the error related to the linearization If measured values are smaller than H1 recalculations will be made on the base of the first straight line calculated on the base of points H1 Y1 an H2 Y2 However for values higher than Hn where n the last declared measured value the value to display will be calculated on the base of the last assigned linear function Note All introduced points of the measured value Hn must be arran 24 ged in the increasing sequence suc
32. the resistance thermometer with transmitter 10 45 Relay outputs relays voltageless contacts load capacity 250 V 0 5A relays switched voltageless contacts load capacity 250 V 0 5A option Analog outputs option rogrammable current 0 4 20mA load resistance x 500 programmable voltage O 10V load resistance gt 500 Q Output of auxiliary supply 24 V d c 30 mA Alarm output OC option output of OC type passive npn 30 V d c 30 mA Serial interface RS 485 option Transmission protocol MODBUS RTU Error of analog output 0 296 of the set range Protection level ensured by the casing frontal side IP65 terminal side IP10 Weight 0 2 kg Overall dimensions 96 x 48 x 93 mm with terminals Reference conditions and rated operating conditions supply voltage 85 253 V d c a c 40 400 Hz or 20 40 V a c 40 400 Hz 20 60 V d c ambient temperature 25 23 559C storage temperature 30 70 C relative air humidity 25 95 inadmissible condensa tion of water vapour work position any 46 Standards fulfilled by the meter Electromagnetic compatibility e noise immunity acc to EN 61000 6 2 e noise emissions acc to EN 61000 6 4 Safety requirements acc to EN61010 1 standard isolation between circuits basic installation category III pollution level 2 maximal phase to earth work voltage 300 V for the supply circuit and 50
33. transformer Before removing the meter housing one must switch the supply off and disconnect measuring circuits The meter is designed to be installed and exploited in electromagnetic industrial environment conditions When connecting the supply one must remember that a switch or a circuit breaker should be installed in the building This switch should be located near the device easy accessible by the opera tor and suitably marked as an element switching the meter off Non authorized removal of the housing inappropriate use incorrect installation or operation creates the risk of injury to personnel or meter damage For more detailed information please study the User s Manual 4 INSTALLATION The meter has separable strips with screw terminals which enable the connection of external wires of 1 5 mm cross section for input signals and 2 5 mm for other signals One must prepare a hole of 92 06 x 45 06 mm in the panel which the thickness should not exceed 6 mm The meter is adapted to be mounted in a panel The meter must be introduced from the panel front with disconnected supply voltage Be fore the insertion into the panel one must check the correct placement of the seal After the insertion into the hole fix the meter by means of clamps fig 2 Fig 3 Overall D
34. try in the level of the parameter group moving through the chosen level change of the chosen parameter value increasing the value Button to change the digit display of minimal value The pressure of the button causes the display of the maximal value during ca 3 seconds entry in the level of parameter group moving through the chosen level change of chosen parameter value shift on the next digit resignation button entry in the menu monitoring the meter parameters by holding down ca 3 seconds exit from the menu monitoring meter parameters resignation of the parameter change absolute exit from the programming mode by holding down ca 3 seconds 12 The pressure of the button combination and holding tnem down ca 3 seconds causes the reset of alarm signaling This operation acts only when the support function is switched on The pressure of the 4 button combination causes the era sing of the minimal value The pressure of the button combination causes the era sing of the maximal value The pressure and holding down the button ca 3 seconds cau ses the entry in the programming matrix The programming matrix can be protected by the safety code The pressure and holding down the button during 3 seconds causes the entry in the menu monitoring meter parameters One must move through the monitoring menu by means of a buttons In
35. ut quantity controlling the alarm Description Main input clock 33 4014 1 w r 0 5 Type of alarm 1 description fig 6 Value 0 Description 4015 dLY1 0 32400 Delay of alarm 1 in seconds 4016 LEd1 NM Support of alarm 1 signaling Description Support switched off Support switched on put quantity controlling the alarm Description Main input clock Type of alarm 2 description fig 6 Description 4019 dLY2 0 32400 Delay of alarm 2 in seconds Support of alarm 2 signaling Description Support switched off Support switched on 4021 P_a3 w r 0 1 Input quantity controlling the alarm Value Description 0 Main input 1 clock 34 4022 tyP3 w r Type of alarm 3 description fig 6 Value Description 4023 dLY3 Ca 0 32400 Delay of alarm 3 in seconds Support of alarm 3 signaling Description Support switched off Support switched on nput quantity controlling the alarm Description Main input clock Type of alarm 4 description fig 6 Value Description 0 4027 dLY4 0 32400 Delay of alarm 4 in seconds Support of alarm 4 signaling Description Support switched off Support switched on 4029 P an T 0 1 Input output Value Description 0 Main
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