DIGITAL PANEL METER N30U TYPE USER'S MANUAL
Contents
1. mw 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 28 connection of a higher quantity of devices it is necessary to apply ad ditional intermediate separating systems e g PD51 converter The lead out interface line is presented on the fig 4 To obtain a cor rect transmission it is necessary to connect lines A and B in parallel with their equivalents in other devices The 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 To obtain the connection to the computer a RS 485 interface card or a suitable converter is indispensable e g PD51 or PD10 The connection2. 7200 7600 CoLLo 19999 99999 change 7202 7601 wir 19999 90999 UPPer dd ce Ulsplay colguy 7204 7602 ovrLo wir 19999 99999 Lower m e display 7206 7603 wir 19999 99999 Upper M cd display 7208 7604 PRL 1 w r 19999 99999 Lower threshold of alarm 1 7210 7605 PrH 1 w r 19999 99999 Upper threshold of alarm 1 7212 7606 PRL 2 w r 19999 99999 Lower threshold of alarm 2 7214 7607 PrH2 w r 19999 99999 Upper threshold of alarm 2 7216 7608 PRL3 w r 19999 99999 Lower threshold of alarm 3 7218 7609 PrH3 w r 19999 99999 Upper threshold of alarm 3 7220 7610 PRL 4 wir 19999 99999 Lower threshold of alarm 4 38 7222 7611 PrH 4 wir 9999 99999 Upper threshold of alarm 4 7224 76 AnL wir 9999 9999 99999 99999 Lower threshold of analog output Upper threshold of analog output 9999 99999 Reserved 0 60000 Reserved 0 60000 Reserved 9999 99999 Reserved 9999 99999 Reserved o o o n w n 0 60000 Reserved 0 60000 Reserved 9999 99999 Reserved Point of the individual characteristic 7244 7622 H1 w r 9999 99999 Point nr 7246 7623 Y1 wir 9999 99999 Exp
3. SBUEUO juod Jnojoo jo Bpa Jno oo Jnojoo Jnoloo wpap sawed 18M0 eda seiyjiemo Jeddn 8IPPIW JeNo leululN Kejdsiq H109 01109 dnjo5 eq109 d P dSIp 21191 SI Alulod X JUlOd 9oeJedo eloeJeUo peseyo JOEJEUO SU Jo 94 Jo PIAIPU PIAIPU sjuod pialpul jo se lulod jse y y JO Jo JequnN ulodlsJl 14109 1514 LZA LZH LH dopul pul euin uones Ajuenb jndui usdwoo painseayy jo nseaW jo pury Joed ElejeweJed LdA dul 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 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 InP 1 Parameter symbol Description Range of changes Pt1 Pt100 Pt5 Pt500 Pt10 Pt1000 rE
4. Value Description 0 Delay of alarm 1 in seconds 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 Value Description wir 0 32400 Delay of alarm 2 in seconds Support of alarm 2 signaling 4021 Description Support switched off Support switched on P_a3 wir 0 1 Input quantity controlling the alarm Value Description 0 Main input 1 clock 34 4022 tyP3 wir 0 5 Type of alarm 3 description fig 6 Value Description 0 4023 dLY3 wir 0 32400 Delay of alarm 3 in seconds Support of alarm 3 signaling Description Support switched off Support switched on Input 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 wit 0 1 Input ve ee output Value Description 0 Main input 1 clock 35 4030 tYPa Type of analog output Description voltage input 0 10 V current input 0 20
5. symbol 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 IndCp number of points decreased of one Tam The individual characteristic is not taken into consideration in the CountH and HoUr modes The point value for which we will expect Hn Yn n point number 19999 99999 Yn Expected value for Xn 19999 99999 18 Table 3 dISP Parameter Symbol Description Range of changes inimal position of the decimal point 0 0000 0 When displaying the measured value 00 000 1 d_P display format This parameter is not 000 00 2 aken into consideration during tCountH 0000 0 3 and HoUr modes 00000 4 Display colour when the displayed CoLdo value is ower than CoLLo Display colour when the displayed rEd red CoLbE value is higher than CoLLo and lower grEEn green han CoLHi orAnG orange Display colour when the displayed value CoLuP is higher than CoL Hi CoLLo Lower threshold of colour change 19999 99999 CoLHi 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 symbol Upper threshold of display narrowing Values above the declared threshold ovrHi are signaled on the display by the ARR symbol Table 4 ALr1 ALr2 ALr3 ALr4 Param
6. Setting of the current time The introduction of a wrong time HOUR cancels the introduction of time 0 00 23 59 The introduced value is not taken On unit highlight switched Mons on unit Highligntotthe unit Off unit highlight switched off 22 Display test The test consists in YeS causes the test start a successive lighting up of digital tESt display segments Alarm diodes The Pressure of the and unit highlighting diodes button ends the test should be lighted no do nothing 5 4 4 Individual Characteristic 30U 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 value characteristic orana og outputs Control of alarms RS 485 interface Fig 9 Action of the Individual Characteristic The user can introduce maximally twenty functions through giving inter vals and expected 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 sma
7. Status1 0 65535 Bit10 Manufacturer s setting restored Lack of measured values in data memory Not used Output plate is detected Output plate error or lack of calibration Not used Not used Wrong configuration of the individual characteristic Not used Bit 1 Not used Bit 0 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 Bit 12 Not used Bit 11 Not used Bit 10 Not used Bit 9 Not used Bit 8 Not used Status2 4049 Status2 z o Bit 7 LED4 Signaling of alarm nr 4 Bit 6 LEDS Signaling of alarm nr 3 Bit 5 LED2 Signaling of alarm nr 2 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 0 Status of the alarm relay nr 1 2 o o S a 2 o o e oo Go gx 9 go E go DZ 50 58 oe I o9 SL CN 9 c an E 2 E D g gt 2 e The value is placed in 32 bit registers Table 10 Description Lower threshold of the display colour
8. conneciion 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 unit Averaging period has not elapsed Value increase button Resignation 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 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 ca 3 seconds moving through the menu choice of level entry in the mode changing the parameter value acceptation of the changed parameter value gt stop the measurement when holding down the button the result is not updated The measurement is still carried out CA button increasing the value display of maximal value The pressure of the button causes the display of the maximal value during ca 3 seconds entry
9. way of devices is shown on the fig 12 A A Computer N30U meter B B A N30U meter T 1 B 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 with frame format 8n2 8e1 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 N30U meter e 03 readout of the register group 04 readout of input registers 06 write a signle register 16 write of the register group 17 identification of the slave device 30 6 4 Register map The register m
10. 34 m 06 kA 35 07 W 36 S 08 kW 37 h 09 MW 38 m 10 var 39 obr 11 kvar 40 szt 12 Mvar 41 imp 13 VA 42 rps 14 kVA 43 m s 15 MVA 44 l s 16 kWh 45 rev min 17 MWh 46 r p m 18 kvarh 47 mm min 19 Mvarh 48 m min 20 kVAh 49 l min 21 MVAh 50 m min 22 Hz 51 szt h 23 kHz 52 m h 24 Q 53 km h 25 kQ 54 m h 26 C 55 kg h 27 s 56 Vh 28 K XX on order 1 after agreeing with the manufacturer 49 11 MAINTENANCE AND GUARANTEE The N30U digital panel meter does not require any periodical mainte nance In case of some incorrect operations 1 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 2 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 51 LUMEL LUMEL S A ul Stubicka 1 65 127 Zielona G ra Poland Tel 48 68 45 75 100 exchange Fax 48 68 45
11. 44 9 TECHNICAL DATA easuring ranges Table 13 Kind of input Indication range Class Pt100 Pt500 205 855 200 850 C Pt1000 4009 0 4100 0 400Q 40009 0 40100 0 40009 Thermocouple of J type 200 1200 C 100 1200 C Thermocouple of K type 200 1370 C 100 1370 01 Thermocouple of N type 200 1300 C 100 1300 C Thermocouple of E type 200 1000 100 1000 C Thermocouple of R type 50 1768 C 50 1760 C Thermocouple of S type 50 1768 C 50 1760 C Voltage input O 10 V 13 13 V 10 10 V Current imput 24 24 mA 20 20 mA Voltage input 60 mV 10 63 mV 0 60 mV Current time 00 00 23 59 0 5 sec 24 h Additional error of automatic thermocouple cold junction temperature compensation SIC of automatic wire resistance compensation for thermoresistors 20 5 C of automatic wire resistance compensation for resistance measurement of temperature changes Inputs parameters lt 0 20 for analog outputs 50 of the class 10 K for analog inputs 100 of the class 10 K resistance of the supply input V resistance of the current input mA current flowing through the resistance thermometer resistance of wires connecting the resistance thermometer with transmitter lt 10 Q gt 1MQ 12 1096 270 x 10uA 45 Relay outputs relays NOC voltag
12. 5 4 5 Alarm types The N30U meter is equipped with 2 alarm outputs with NOC 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 A A 1 1 Output Output Y switched on o switched off Output Output switched off switched onj l z PrL PrH Measured PrL PrH Measured quantity quantity a n on b n off Alarm Alarm output output A 4 oe 1 A Output Output Output 5 switched 0 switched oi Switched od Output on Output TT Output switched off switched off switched off gt 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 25 Caution e Incase of alarms of n on n off on off types the write of PrL gt PrH will cause the alarm switching off e Incase of a measuring range overflow the reaction of the relays is compatible with written PrL PrH tYP parameters In spite of the dis played overflow the meter still carries out the measurement e The meter controls currently the value of the introduced parameter at the moment In case when the introduced
13. 7 10 ORDER CODES Table 14 DIGITAL PANEL METER N30U Ex x pochoc x x Supply 85 253 V a c 45 65 HZ Of 0 esee 1 20 40V a c 40 400 Hz 20 60 Vd C 2 Additional outputs ca S v 0 OC output RS485 analog outputs 1 OCoutput RS485 analog outputs switched relay oUtpUls usuwasz as w erras 2 Unit unit code number acc tab 15 XX Version Either AAAA custom made Language asc m English GNET Acceptance tests without extra quality requirements with an extra quality inspection certificate s ACC to customer s request cea AAAA A AAAA BEE 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 C acc to the table 3 00 standard version E English language 0 without extra quality requirements 48 Code of the highlighted unit Table 15 Code Unit Code Unit 00 Lack of unit 29 01 V 30 RH 02 A 31 pH 03 mV 32 kg 04 kV 33 bar 05 mA
14. 7284 7642 H11 w r 19999 99999 Point nr 11 7286 7643 Y11 w r 19999 99999 Expected value for the point nr 11 7288 7644 H12 wir 19999 99999 Point of the individual characteristic Point nr 12 7290 7645 Y12 wir 19999 99999 Expected value for the point nr 12 Point of the individual characteristic 7292 7646 H13 w r 19999 99999 Point nr 13 7294 7647 Y13 w r 19999 99999 Expected value for the point nr 13 7296 7648 H14 wir 19990 99999 Point of the individual characteristic 7298 7649 Y14 w r 19999 99999 Expected value for the point nr 14 7800 7650 H15 wit 19999 99999 Point of the individual characteristic 7302 7651 Y15 w r 19999 99999 Expected value for the point nr 15 7804 7652 wir 19999 99999 Point of the individual characteristic 7306 7653 Y16 w r 19999 99999 Expected value for the point nr 16 7808 7654 H17 wit 19999 99999 Point of the individual characteristic 7310 7655 Y17 wir 19999 99999 Expected value for the point nr 17 7812 7656 wir 19999 99999 Point of the individual characteristic 7314 7657 Y18 w r 19999 99999 Expected value for the point nr 18 7816 7658 H19 wit 19999 99999 Point of the individual characteristic 7318 7659 Y19 wir 19999 99999 Expected value for the point nr 19 Point of the individual characteristic Poi
15. 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 export lumel com pl
16. DIGITAL PANEL METER N30U TYPE USER S MANUAL C Contents BASIC REQUIREMENTS OPERATIONAL SAFETY RS 485 INTERFACE O Oa R User s manual for meters with firmware version gt 2 00 APPLICATION AND METER DESIGN e METER SET ge INSTALLATION m liduiee UPDATING OF SOFTWARE ener tentent tentant ERROR CODES n sa ean mean an aaa na anaaz aaa tns inane ata ans tn ata anna TECHNICAL DATA ORDER CODES cccccctssesssesstssssssesensensensensssessuscuseeseesusnenseneas MAINTENANCE AND 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 the 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 Features of the N30U meter display colour individually programmed in three intervals programmable thresholds of displayed overfl
17. ZL measurement of resistance up to 400 Q rEZH measurement of resistance up to 4000 Q tE J J Fe CuNi tE h K NiCr NiAl tYP1 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 0_10U voltage measurement range 10 V O 20A current measurement range 20mA O 60n voltage measurement range HOUr current time 17 cd Table 1 Choice of the measured value compensation Concerns only the 19999 99999 work in the mode of temperature Introduction of values or resistance measurement The o 39 Q causes the switching wire linking the meter with the of the manual compensation on sensor defines the resistance or the resistance or tempera Con RTD sensors however for ure measurement by means of thermocouples the compensa RTD resistance thermometers tion is defined by the cold junc tion temperature The choice of a 0 60 causes the switching value beyond the range causes of the manual compensation on the switching of the automatic or thermocouples compensation on The measurement time is expressed in seconds The result on the display presents the mean Cnt1 value counted in the Cnt1 period 1 3600 This parameter is not taken into consideration during the measurement in counter modes Table 2 Ind Parameter Description Range of changes
18. alue Measured value not recalculated in relation to the individual character istic a s l 7022 7511 EMF O HV EMF measured on meter terminals when measuring temperature by means of thermocouples 7024 7512 Resistance O Ohm Resistance measured on the mean line only for the resistance measure ment or when measuring temperature by means of resistance thermometers 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 Measured v atout MDE mele Kors nru e 00 tuns a 1 m Pota pawi T DIT ETT occi M CI 4 a Port CONS Disconnect File N33 T Te El Cieni Messages Port opened al Device found W30 Ty 1 10 ile opened Sending data please wait Done 00 01 23 2 225555 i 08 55 03 Pic 13 Program view a LPCon b updating of software 42 Warning Before doing update currently 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 port ba
19. ap of the N30U meter is presented below Notice All given addresses are physical addresses In some computer pro grams logic addressing is applied then addresses must be increased of 1 Table 8 Range fm Value type Description 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 5 A Value placed in a 32 bit register 7500 7519 float 32 bits 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 Table 9 E a g Description 2 38 2 SZ Input type 0 Pt1 Pt100 1 Pt5 Pt500 2 Pt10 Pt1000 3 rEZL Resistance range 400 Q 4 rEZL Resistance range 4000 Q 5 tE J J thermocouple of J type 6 tE h thermocouple of K type 7 tE n N thermocouple of N type 8 tE E E thermocouple of E type 9 tE r R thermocouple of R type 10 tE S S thermocouple of S t
20. ected value for the point nr 1 7248 7624 H2 wit 9999 99999 Point of the individua characteristic oint nr 2 7250 7625 Y2 wir 9999 99999 Expected value for the point nr 2 7252 7626 H3 wit 9999 99999 Point of the individual characteristic oint nr 3 7254 7627 wir 9999 99999 Expected value for the point nr 3 7256 7628 H4 wit 9999 99999 Point of the individual characteristic oint nr 4 7258 7629 Y4 wir 9999 99999 Expected value for the point nr 4 7260 7630 H5 wit 9999 99999 oint of the individual characteristic oint nr 5 7262 7631 Y5 w r 9999 99999 Expected value for the point nr 5 7264 7632 H6 wit 9999 99999 Point the individual characteristic oint nr 6 7266 7633 Y6 wir 9999 99999 Expected value for the point nr 6 7268 7634 H7 wit 9999 99999 Point the individual characteristic oint nr 7 7270 7635 Y7 wir 9999 99999 Expected value for the point nr 7 7272 7636 H8 wit 9999 99999 Point the individual characteristic oint nr 8 7274 7637 Y8 wir 9999 99999 Expected value for the point nr 8 7276 7638 H9 wit 9999 99999 Point of the individual characteristic Point nr 9 39 7278 7639 Y9 w r 19999 99999 Expected value for the point nr 9 Point of the individual characteristic Point nr 10 7280 7640 H10 w r 19999 99999 7282 7641 Y10 w r 19999 99999 Expected value for the point nr 10 Point of the individual characteristic
21. eless 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 lt 500 Q programmable voltage O 10V load resistance 2 500 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 2 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 40 400 Hz 20 60 V d c ambient temperature 25 23 55 storage temperature 30 70 relative air humidity 25 95 inadmissible condensa tion of water vapour work position any power consumption lt 6VA 46 Standards fulfilled by the meter Electromagnetic compatibility noise immunity acc to EN 61000 6 2 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 V for remaining circuits altitude above sea level 2000 m 4
22. enu 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 18919 NOEN eui jo UUIUOBIV 9911S 7 BH uondiosul jo Aejdsiq 1oeuoou lt eur Aqua 1081109 puomssed eu 6uyoedD ane jeuuuiu jo Ke dsiq Aiowew wieje au jo euuixetu PJOMSSEd jo jo Bursei3 ayy jo uononpoaul spuooes rr Cx Cg Ces LNAWSYNSVAN spuooes CET anjen jewixew jo Kejdsig SJojeurejed Jelau JO nuejy 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 le
23. eter TT symbol Description Range of changes P A1 InP1 Main input indicated P A2 P A3 Input quantity steering the alarm value HoUr Real time clock P_A4 19 cd Table 4 n on normal transition from Ona 1 n oFF normal transition from 1 na 0 on switched on tYP1 oFF switched off tYP2 Alarm type Fig 11 presents the H on manually switched tYP3 graphical imaging of alarm types on till the change time of the tYP4 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 PrL1 PrL2 li ower alarm threshold 19999 99999 PrL3 PrL4 PrH1 Upper alarm threshold 19999 99999 ri EN PrH3 PP PrH4 dLY1 dLy2 Delay of alarm switchin 0 32400 witching m dLY3 Y dLY4 20 cd Table 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 LEd1 Ng the alarm state till its blank LEd inamomentby means ofthe tunelon aliened of LEd4 button com 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 out Parameter WE s
24. 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 them 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 a 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 4 Jand a buttons In this m
25. ircuits of successive groups of signals are separated between them Additional output signals option RPT 24Vdc 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 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 R PT input for the resistance measurement or for the connection of RTD sensors The compensation wire has been marked by a broken line OC open collector output of npn type signaling of the measuring range overflow 4 2 Examples of Connections An example of the N3OU 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 0 10V Resistor RTD sensor in a two wire system 1 2 3 4 5 6 7 8 R PT Connection of a two wire transducer 4 20 mA 112134 12113 1415116 21314 5 7 s 1 2 s 4 516178 112 13 4 15 67 60 mV Resistor RTD sensor in a three wire system 1 2131415161718 R PT Thermocouples Connection of a three wire transducer 0 10 V 1 2 3 4 12 13 14 15 16 O 85 253 V LT O 85 253 V Fig 5 Ways of the meter Connection For the
26. k or during the work messages about errors can appear Error message essages about errors and their reasons are presented below Table 12 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 ErFrt Communication error with the data memory Contact the Service workshop ErPar Parameter error Wrong configuration data anufacturer s settings will be restored after pressing any button ErdEF Default settings have been restored Press any button to ransit to a normal work ErFPL Error of measured values stored by the meter measured maximal and minimal values Press any button to transit anormal work After pressing the button during 1 sec he ErdEF message will be displayed ErCAo Lack of calibration of analog outputs Press any button o transit to the normal work Analog outputs will not be serviced Contact the service workshop ErCAL 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
27. ller than the number of points 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 A Y10 Y9 YT Y5 Y4 4 Y2 Y1 H1 H2 H3 H4 H5 H6 H7 H8 H9 H10 Measured value Input function Linearized function Rys 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 such 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
28. 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 0 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 Password for parameters Description without password Entry in parameters preceded by a request about the password Xr Teu wr 0 259 cam 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 Switch on off the unit highlight Description highlight swiched off highlight swiched on 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 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 18 Not used Bit 12 Lack of communication with data memory Bit 11 Wrong settings
29. meter value will cause the resignation of the write 15 piomssed 159 yun y euin y a wanes i puepuels Kejdsiq 1 Jo uononponu aur an 28S 3543 4noH 238 188 138 jndjno Bojeue awed 8 EJ indino Bojeue eu ou ded jo puly pneg Jo poison jo plouseq Sindjno Jeddn i Ippe youd pnyq v d Huy uv d yoddns Buljeubis yqal Aejap PAIP adh vdA piouseuul Jeddn vHid tlid 18M0 i z wee Joy Ayquenb jndul jo DEM d vuv yoddns 6ulleuflS 031 Aejap uue v AIP edA Jeddn Hid JeNo eld wueje Ayuenb ndu jo ed ev d e xriv yoddns Guijeubis 2041 Aejap Z 1P adh pjouseJuy Jeddn H4d Joy JouseJu Ayuenb demo ed AL ZAC zd d ev molheAo 1HJAo OTJAO hud 10 yoddns kejap adh ploysaiy PIOUS9JU Kinuenb BujeufiS Jeddn 19401 jedA Laa1 LATP LdA Hid Lid Hiv
30. nt nr 20 7322 7661 Y20 w r 19999 99999 Expected value for the point nr 20 7320 7660 H20 w r 19999 99999 Point of the individual characteristic 7324 7662 H21 w r 19999 99999 Point nr 21 7326 7663 Y21 w r 19999 99999 Expected value for the point nr 21 40 6 6 Registers Only for Readout Table 11 Write w readout 7 Name of the quantity 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 Constant identifying the device Identifier The value 183 means the N30U meter Status is register describing the current Status state of the meter Control It is a register defining the control of the analog output Minimal value of the currently displayed Minimum value Maximal value of the currently Maximum displayed value Displayed value Currently displayed value Current time Current time Wire Wire resistance for resistance resistance measurement measured value ADC analog to digtal converter value Temperature of terminals the mea surement is only carried out during the temperature measurement by means of thermoelectric sensors or during time measurements Terminal temperature 41 Table 11 7020 7510 Measured v
31. ows 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 _ Fig 1 View of the N30U Digital Meter 2 METER SET The set is composed of iN30U eer it er nci abr ret nea e
32. romagnetic 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 45406 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 48 tH 67 max 93 Ce CA Fig Overall Dimensions 4 1 Lead out of Signals Signals led out on the meter connectors are presented on the fig 4 C
33. rue a Ree e 1 pc User s manual eet prete orae 1 pc Guarantee arcd eese PAR WEK 1 pc Set of clamps to fix the meter in the panel 4 pcs Set of labels with units en 2 pcs 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 AN One must take note of this when the instrument is working inconsistently to the expectations Possible consequences if disregarded Observations concerning the operational safety 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 autotransformer 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 elect
34. udrate 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 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 manufacturers parameters Select checkbox and press Apply button Next press Send button to restore previously read parameters Current firmware version can be checked when 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 networ
35. 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 N30U 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 Manufacturer s 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 Parametru symbol Level in the matrix Standard value tYP1 1 Pt Con HO a O 19999 99999 1000 27 tYP1 1YFZ tYP3 tYP4 PrL1 PrL2 PrL3 PrL4 P PrH1 PrH2 PrH3 PrH4 BA 2000 dLY1 dLY2 LEd1 LEd2 em f em me el mw
36. vel is made by means of the button however the entry and moving through the para meters of the chosen level is carried out by means of the and 4 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 a 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 0 on this digit The change of the digit follows after pressing the lt 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 para
37. ymbol Description Range of changes InP1 main input indicated P An Input quantity which the analog value output has to react on Hour real time clock 0 10U voltage 0 10 V tyPA Type of analog output 0 20A current 0 20 mA 4 20A current 4 20 mA Lower threshold of the analog output give the value on which AnL 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 AnH 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 bAud Baud rate of the RS485 interface 38 4 38400 bit s 57 6 57600 bit s 115 2 115200 bit s r8n2 rot Type of transmission frame of the r8E1 RS 485 interface r801 r8n1 Address in the MODBUS net Addr work The write of the value 0 0 247 switches the interface off Table 6 SEr Parameter symbol Description Range of changes Write of manufacturer s settings The setting of the value YES causes the write of standard no do nothing SEt parameters into the meter YeS causes the write of The value of manufacturer s manufacturer s settings parameters is presented in the table 7 Introduction of a new password SEC The introduction of the value 0 0 60000 switches the password off
38. ype 11 O 10U voltage measurement range 10 V 12 O 20A current measurement range 20 mA 13 0_60n voltage measurement range 60 mV 14 HoUr current time 4001 wit Reserved 4002 wir Reserved Measurement time expressed in seconds This m whan noe aaa calculated from the Cnt1 period 4004 wir Reserved 4005 wit Reserved 4006 wit Reserved 4007 wit 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 Wi 0 4 displaying the measured value Value Description 0 0 0000 1 00 000 2 000 00 3 0000 0 4 00000 Display colour when the displayed value is smaller than coLLo 4010 Coldo wr 0 2 Value Description 0 red 1 green 2 orange Display colour when the displayed value is higher than coLLo and smaller than coLHi 4011 coLbE wr 0 2 Value Description 0 red 1 green 2 orange Display colour when the displayed value is higher than coLHi 4012 ColUp wr 0 2 Value Description 0 red 1 green 2 orange put quantity controlling the alarm Description Main input clock 33 4014 tyP1 w 0 5 Type of alarm 1 description fig 6 0 32400
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