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USER`S MANUAL

1. 34 8 ERROR CODES xii uento ee 49 9 FIRMWARE UPDATING 9 1 Software L1 level 50 9 2 Software L2 level update eese 53 10 TECHICAL SPECIFICATION eee 54 11 ORDERING CODE nennen tir tana tnra amer 59 1 APPLICATION The N27P is a programmable digital device used to measure the parameters of single phase electrical networks The meter measures and calculates the following values phase voltage e 10 minutes mean voltage current e active power reactive power apparent power active power factor ratio of reactive active power mean active power phase shift input of active energy e output of active energy e input of reactive energy e Output of reactive energy apparent energy e frequency e 10 seconds mean frequency time maximum and minimum values of phase to neutral voltage current active power reactive power apparent power active power factor tangent frequency average active power It is possible to enter transformer ratio of used external current or voltage transformers which will be accounted for in the mea surement and calculation of all values All values and configu ration parameters are accessible through the RS485 and USB interfaces The meter output signals are
2. N27P 1 2 an Y Range 32A 63A Figure 3 N27P wiring diagrams ZA 5 OPERATION 5 1 Description of front panel N27P Display 1 USB interface Control buttons Figure 4 Front panel 5 2 Messages after switching the power supply on After switching the power on the meter shows infor mation about manufacturer software version and device serial number Then the meter goes to display the measured values 11 6 MENU 6 1 Display USB connection Alarm indicators indicator _ Upper Data transmission displayed indicators value R receiving T transmitting Energy character Main displayed capacitive value Selection with use of button inductive consumed produced Additional displayed value Selec tion with use of button V Figure 5 N27P meter display 12 The main displayed value is selected using the UP button in the following sequence Ak ka LL ER EB Figure 6 Selecting main displayed value The additional displayed value is selected using the DOWN button YJ in the following sequence EM NUES Figure 7 Selecting additional displayed value The upper displayed value is selected from the meter menu DISPLAY UP DISPLAY 14 6 2 Menu structure The N27P parameters may be modified from the dis play menu level and hold it for about 3 seconds Use the U
3. active power averaging time in progress Status 2 register address 4077 R Bits 15 7 reserved Bit 8 1 result of active power substraction is positive Bit 7 1 result of reactive power substraction is positive Bit 6 1 capacitive reactive power max Bit 5 1 capacitive reactive power min Bit 4 1 capacitive reactive power Bit 3 1 alarm 2 indication Bit 2 1 alarm 1 indication Bit 1 1 alarm 2 active Bit O 1 alarm 1 active 44 Table 11 Ad Address dress of of 16 bit 32 bit 3 pa tl 5 registers regi sters 6000 7000 7500 R Voltage U 6002 7002 7501 R Current A 6004 7004 7502 R Active power P 6006 7006 7503 R Reactive power var 6008 7008 7504 R Apparent power S VA 6010 7010 7505 R Active power factor 6012 7012 7506 R Active reactive power ratio 6014 7014 7507 R Frequency Hz 6016 7016 7508 R Average active power PAV 15 30 60 minute 6018 7018 7509 R Reserved 6020 7020 7510 R Reserved 6022 7022 7511 R Cosine of angle between U and 6024 7024 7512 R Angle between U and 9 6026 7026 7513 Consumed active energy number 100 of register overflows 7514 zero MWh ed after 99999999 9 kWh is ex ceeded 6028 7028 7514 R Consumed active energy meter
4. 1900 W AL 96 So AL H 105 0 AL L7 95 Set INPUT VALUE ACTIVE POWER OUTPUT TYPE n on LOW LEVEL IN 95 5 HIGH LEVEL IN 105 Alarm settings example 2 Set early warning of the possibility of exceeding ordered power equal 1MW on the level 90 settled with 15 minutes Current transformer 2500 5 A nominal voltage 400 V Maximal momentary power 1 5 MW Calculating nominal active power of N27P meter P 400 V x 2500 500 x 5 1 MW 500 x 2000 W 100 90 0 of demand power nominal power 90 0 x 1 MW 1 MW 90 0 of nominal range Ordered power power to use 1 Mwh 4 quarters of the hour 900 Mws 90 810 Mws the remaining 10 at maximal power consumption would be used in time 900 MWs 1 5 MW 10 x 900 MWs 1 5 MW 60 s Figure 9 shows example of using demand power parameter to turn on the alarm Delay is set to 0 seconds In the example above for remaining 10 of demand power at maximal power consumption a device could operate 60 s witho ut exposing the recipient to penalties With alarm turn on delay set to 60 seconds alarm would not be turned on 27 Imported power Ordered power 1 5 MW energy 1 MW 4 100 96 90 96 0 gt 8 00 00 8 07 30 7 8 14 05 8 15 00 State of Relay contacts enabled 1 5 Relay disabled 0 gt Ordered power AL_H 90 0 AL_L 89 9 CTime of delay AL dt on 0 sec Figure
5. version for direct measurement version with analogue output 42 Energy values are in kilowatt hours kilo VAR hours in double 16 bit registers so the values from relevant registers need to be divided by 10 as follows Active energy consumed value of register 4060 65536 value of register 4061 10 kWh Active energy supplied value of register 4062 x 65536 value of register 4063 10 kWh Inductive reactive energy value of register 4064 x 65536 value of register 4065 10 kVarh Capacitive reactive energy value of register 4066 x 65536 value of register 4067 10 kVarh Apparent energy value of register 4068 x 65536 value of register 4069 10 kVA Status 1 register address 4076 R Bit 15 1 non volatile memory failure Bit 14 1 inputs calibration error Bit 13 1 analogue output calibration error Bit 12 1 parameters error Bit 11 1 energy value error Bit 10 1 reserved Bit 9 0 version with 2 relays 1 version with 1 relay and 1 analogue output Bit 8 0 1 A 5 A current range 1 32 A 63 A current range Bit 7 1 reserved Bit 6 1 reserved Bit 5 1 reserved Bit 4 1 USB connected Bit 3 1 measured voltage value is out of range for frequency measurement 43 Bit 2 1 frequency averaging time in progress Bit 1 1 voltage averaging time in progress Bit O 1
6. TIME 30000 GG 00 23 MM 00 59 Password preventing access to modify the meter settings When this option is activated any attempt to access the meter menu results in the password requ est When an incorrect password is entered the user may use the menu in the read only mode Clearing the password is described in section 6 2 The 0 setting me ans that the password protection is disabled Set the time in the HH MM format When you confirm the time the seconds will zero Date DATE DD 01 31 MM 01 12 RRRR 2000 2099 Set the date in the DD MM YYYY format Language LANGUAGE ENGLISH POLSKI Set menu language EN GLISH 32 7 SERIAL INTERFACES 7 1 RS485 list of parameters Identifier device address baud rate transmission mode unit of information maximal time to start response maximal registers amount to read in one query implemented functions 209 0xD1 1 247 4 8 9 6 19 2 38 4 57 6 115 2 kbit s Modbus RTU 8N2 8E1 801 8N1 100 ms when reading 1000 ms when writing 56 x 4 bytes registers 105 x 2 bytes registers 03 read registers 04 read input registers 06 write 1 register 16 write n registers 17 device identification Factory settings address 1 baud rate 9600 mode RTU 8N2 Broadcasting address 253 33 7 2 USB list of parameters Interface USB is dedicated on
7. 300 V for measuring circuits 600 V cat II 300 V cat III for remaining circuits 50V altitude above sea level 2000 m 58 11 ORDERING CODE Current measurement range 1 A 5 A a c 32 A 63 A a c outputs 2 relay otputs 1 relay output and 1 analog output 0 4 20 mA Table 14 Version standard custom made Language Polish Acceptance tests without extra requirements with an extra quality inspection certificate acc to customer s request must be agreed with the manufacturer 59 ORDER EXAMPLE The code N27P 1100E0 means N27P N27P meter 1 for indirect measurements in the 1 A 5 Arange 1 two relay outputs 00 standard version E English version 0 without extra requirements 60 61 62 63 LUMEL LUMEL S A ul Stubicka 1 65 127 Zielona Gora Poland Tel 48 68 45 75 100 Fax 48 68 45 75 508 e mail lumelQ lumel com pl http www lumel com pl Export Department Tel 48 68 45 75 302 Fax 48 68 32 54 091 e mail export lumel com pl N27P 09A
8. 60 minute 6120 7120 7560 R Maximum average active power 15 30 60 minute 6122 7122 7561 R Reserved 6124 7124 7562 R Reserved 6126 7126 7563 R Reserved 6128 7128 7564 R Reserved 6130 7130 7565 R Minimum cosine p 6132 7132 7566 R Maximum cosine 6134 7134 7567 R Minimum shift angle 6136 7136 7568 R Maximum phase angle 6138 7138 7569 R Minimum 1 3 current A 6140 7140 7570 R Maximum 1 3 current A 6142 7142 7571 R Reserved In case of values below the lower limit the value is 1e20 in case of values above the upper limit or errors it is 1e20 48 8 ERROR CODES After turning the meter on some error codes can appear on dis play Error reasons are described as follow Following error codes means Error Calibration loss of meter calibration values Please con tact your service provider Error Memory non volatile memory failure Please contact your service provider Error Parameters invalid configuration values Pressing ENTER e button disables the error message Please resto re factory settings Error Energy invalid energy values Pressing ENTER e button disables the error message Values will be reset Error Intercommunication firmware update finished with error Please try again if error remains please contact your service provider During normal operation some error messages can appear
9. Console 23 10 2013 08 43 08 AM Device configuration downloaded correctly 23 10 2013 08 43 08 Modbus Slave devi MITP M178 0 80 23 10 2013 08 43 08 AM 25 10 2013 08 43 04 AM Con v 0 1 55 Check for Copyright 2013 S A Figure 11 eCon main window 50 LUMEL UPDATER v 1 12 Device LUMEL N27P L1 hd Port COM2 Connect Backward compatibility mode Setup D N27P_L1_v080 img Messages Port opened Device found N27P L1 firmware v 0 80 bootloader v 1 20 File opened Sending data please wait Done Disconnecting 00 03 25 15 00 23 Figure 12 Main window of firmware updating software Attention After the firmware is updated the factory configuration is set So it is recommended to save actual configuration to file using eCon application When eCon is started Figure 11 set the communication parameters on the left side of application main window and then click Connect The meter will be automatically recognized In N27P configuration region the meter configuration should be read and save to file for later restoration Then from the menu at the top of the application select Update Firmwa re Application LUMEL UPDATER LU will appear Figure 12 In this application select the correct serial port on which N27P meter is instal led and press the Connect button In the Message window act
10. ana NORMAL tings TING MAL logue output The NOR REG MAL option controls 4044 the output on the basis REG of the perfformacne 4045 specified by the valu es set in LOW VALUE HIGH VALUE LOWE LEVEL HIGH LEVEL fig 9 In REG 4044 or REG 4045 options the analogue output is permanently control led by the value set in LOW LEVEL or HIGH LEVEL respectively 8 Value at error ERROR 0 00 Value set at the ana 22 00 VALUE 22 00 logue output in case mA mA of error occurrence 9 Device ADDRESS 1 247 Device address in the 1 address MODBUS protocol 10 Transmission MODE 8n2 Selection of trans RTU 8n2 mode RTU 8e1 mission mode for 801 the RS485 interface RTU 8n1 1 Baudrate BAUDRATE 4800 Speed of the RS485 9600 bit s interface bit s 9600 bit s 19200 bit s 38400 bit s 57600 bit s 115200 bit s 30 lout A i gt DW GW Controlled value Figure 10 Control of the analogue output 6 8 Service settings The service settings can be programmed in the SERVICE menu according to table 8 Table 8 SERVICE i Facto 5 Parameter Parameter Modifica Remarks Description ry set symbol tion range tings 1 Restore DEFAULT NO Option to restore the NO default PARAM YES default factory set settings tings for the meter configuration parame ters acc to table 1 31 Access password Time PAS SWORD
11. galvanically isolated from the input and power supply signals Figure 1 Meter for direct measurements left Meter for indirect measurements right 2 METER SET The meter set comprises N27P User Manual Warranty Card Accessories The following accessories can be ordered for the N27P meter USB A miniUSB cable 1 m black order code 1126 27 1 028 6 3 BASIC REQUIREMENTS SAFETY OF USE The symbols used in the manual have the following meaning Warning Potentially hazardous situations Read before connecting the device Failure to observe recommendations marked with this symbol can result in heavy personal injuries and device damage Caution Generally useful notes Read them to make the device use easier Pay attention to these notes when the device is not working correctly Possible consequences if the information is disregarded In terms of safety of use the meter conforms to EN 61010 1 Safety notes N Electrical connections should be made by a person with required licences to install electrical devices Check the correctness of connections before turning the meter on Removal of the meter cover during the warranty period makes the warranty null and void The meter is intended for installation and use in industrial electromagnetic environments The building electrical installation should have a switch or a circui
12. kWh measuring up to 99999 9 kWh 6030 7030 7515 R Supplied active energy number of 100 register overflows 7516 zeroed af MWh ter 99999999 9 kWh is exceeded 45 6032 7032 7516 R Supplied active energy meter mea kWh suring up to 99999 9 kWh 6034 7034 7517 R Inductive reactive power number of 100 register overflows 7517 zeroed af Mvarh ter 99999999 9 kvarh is exceeded 6036 7036 7518 R Inductive reactive power meter kvarh measuring up to 99999 9 kvarh 6038 7038 7519 R Capacitive reactive power number 100 of register overflows 7520 zero Mvarh ed after 99999999 9 kvarh is ex ceeded 6040 7040 7520 Capacitive reactive power meter kvarh measuring up to 99999 9 kvarh 6042 7042 7521 R Apparent energy number of regi 100 ster overflows 7522 zeroed after MVAh 99999999 9 kVAh is exceeded 6044 7044 7522 R Apparent energy meter measuring kVAh up to 99999 9 kVAh 6046 7046 7523 R Reserved 6048 7048 7524 R Reserved 6050 7050 7525 R Reserved 6052 7052 7526 R Reserved 6054 7054 7527 R Reserved 6056 7056 7528 R Reserved 6058 7058 7529 R Control current for continuous output 1 mA 6060 7060 7530 R Bargraph reading 6062 7062 7531 R Energy consumption in in the Power Guardian mode 6064 7064 7532 R 1 3 of th
13. next turning on blocking time s 4039 RW 0 1 Alarm 2 output indication keeping 0 1 yes 39 4040 RW Analogue output 1 input signal 0 off 1 voltage 2 current 3 active power 4 reactive power 5 apparent power 6 Power Factor 7 tangent p 8 frequency 9 average active power 10 10 minutes average voltage 11 10 seconds average frequency 12 current 3 13 demand power 4041 4042 RW RW 0 1 1440 1440 Analogue output 1 output type 0 0 20 mA 1 4 20 mA value x10 Analogue output 1 low input 4043 RW 1440 1440 Analogue output 1 high input value x10 1000 4044 RW 0 2200 Analogue output 1 low output value x100 4045 RW 0 2200 Analogue output 1 high output value x100 2000 4046 RW Analogue output 1 output mode 0 normal 1 register 4044 2 register 4045 4047 RW 0 2200 Analogue output 1 value at error 2200 4048 RW 1 247 Device address 40 4049 RW Transmission mode 0 8N2 1 8E1 2 801 3 8N1 4050 RW Baud rate 0 4800 bit s 1 9600 bit s 2 19200 bit s 3 38400 bit s 4 57600 bit s 5 115200 bit s 4051 Reserved 4052 RW 0 1 Update transmission param
14. 6 28 kvar 0 5 of range Apparent power 1 00 36 28 kVA 0 5 of range Power Factor 1 0 1 0 5 of range Tangent 1 2 0 1 2 1 96 of range Angle 180 180 1 96 of range Active energy 0 9 999 999 9 kWh 0 5 96 of measu red value Reactive energy 0 9 999 999 9 kvarh 0 5 of measu red value Typical processing time 12s Maximum processing time 22s Power consumption in power supply circuit lt 5VA in voltage circuit lt 0 2 VA incurrent circuit 0 05 VA for 1 A 5 A version 2 5 VA for 32 A 63 A version 55 Relay outputs Analog output Serial interfaces Voltage transformer NO type contacts load capacity 250 V 0 5 A number of cycles 1 105 programmable current maximal range 0 22 mA load resistance 0 250 disposable voltage 15V basic error 0 2 of range resolution 0 05 of range RS485 address 1 247 mode 8N2 8E1 801 8N1 baud rate 4 8 9 6 19 2 38 4 57 6 115 2 kbit s USB for configuration 1 1 2 0 address 1 tryb 8N2 baud rate 9 6 kbit s maximal USB wire length USB 3m broadcasting address 253 transmission protocoll modbus RTU time to start response 100 ms read 1000 ms write ratio Ku 0 1 4000 0 Current transformer ratio Ki 1 10000 Test voltages power supply alarm outputs 2 1 kV d c measurement inputs 3 2 kV d c RS485 and USB interfaces analogue out
15. 9 Measurement of demand active power synchronized with the clock for 15 minutes with alarm set at 90 of utilization Set U INPUT VALUE DEMAND POWER OUTPUT TYPE n on LOW LEVEL 90 0 96 HIGH LEVEL IN 89 9 CURRENT RATIO 500 PW AVG SYNCH MOVING WINDOW or CLK 15 MIN DELAY ON 0 5 60 s 28 6 7 Programming the outputs The outputs can be programmed in the OUTPUT menu accor ding to table 7 Table 7 OUTPUT 5 Parameter Parameter Range Remarks Description Factory symbol value 1 Input parame INPUT table 6 code acc to table 6 ACTIVE ter of analogue VALUE POWER output 2 Type of analo OUTPUT 0 20 mA The output ran 0 20 mA gue output TYPE 4 20 ge can be selected mA 3 Low value of LOW 144 0 Low value of input para 0 0 input para LEVEL IN 144 0 meter LV in fig 9 Cor meter responds to LOW LEVEL in the analogue output 4 High value of HIGH 144 0 High value of input para 100 0 input para LEVEL IN 144 0 meter HV in fig 9 Cor meter 926 respondstoHIGHLEVEL in the analogue output 5 Low level LOW LEV 0 00 Low signal on analo 0 00 mA of analogue OUT 22 00 gue output LL in fig 9 output mA 6 High level HIGH LEV 0 00 High signal on analo 20 00 of analogue OUT 22 00 gue output HL in fig 9 mA output mA 29 7 Manual set MAN SET NOR Manual control of
16. Error reasons are described as follow exceeding the upper programmed value of the measu ring range In addition this message may appear when the vol tage and or current is too low or too high to measure Power factor tangentgp bellow 5 Un 1 In or over 120 Un In f bellow 5 96 Un or over 120 96 Un exceeding the lower programmed value of the measu ring range 49 9 FIRMWARE UPDATING The implemented functions of N27P meter allows software updates from a PC with the software eCon Free software eCon and update files are available on www lumel com pl Updating is done via the USB interface of N27P meter N27P meter s sof tware consists of two layers L1 and L2 The update can be per formed for one or both levels 9 1 Software L1 level update Device configurator Update firmware Guide vy mem Seria number 13090001 firmware 0 00 Filter BA M All Transducers Transmission parameters C meters O controllers N30P RF modules Name 400 sav 1 0 4000 0 Communication 1 1 10000 Port Miornik Moter N27P COM2 v Measuring of all values v Device 1D 1 Sine Baud rate 9600 ti Inductive and capacitive v mode RTUSN2 v Walking window 15 min v Timeout 2000 ms 100 0 144 0 144 0 L use the factory settings of the module Save Status port connected Device N27P N27P 0 80 o Serial port Modbus TCP
17. GRAPH Display Selection of Selection of Selection of Percent of input settings value displayed input parameter bargraph style parameters as on upper line of for bargraph 100 of bargraph display ALARM 1 INPUT VALUE OUTPUT TYPE LOW LEVEL IN HIGH LEVEL IN DELAY ON Alarm 1 Selection of input Selection of Low level ofinput High level ofinput Delay for alarm 1 setting signal output type signal signal turning on ALARM 2 INPUT VALUE OUTPUT TYPE LOW LEVEL IN HIGH LEVEL IN DELAY ON Alarm 2 Selection of input Selection of Low level of input High level ofinput Delay for alarm 2 setting signal output type signal signal turning on OUTPUT INPUT VALUE OUTPUT TYPE LOW LEVEL IN HIGH LEVEL IN LOW LEV OUT Output Selection of input Selection of Low level of input High level of input Low level of settings signal output type signal signal output signal SERVICE DEFAULT PARAM PASSWORD TIME DATE LANGUAGE Service Restore factory Menu lock Time settins Date settings Selection of settings settings password menu language 16 REACT PW REACT EN PWAVG SYNCH DEMAND POWER MODE MODE Reactive power Reactive energy Avarage power Ordered power calculation calculation synchronization method method method DELAY OFF LOCK TURN ON SIGNAL MAINT Delay for alarm 1 turning off Restart interlock Maintenance of alarm indication DELAY OFF Delay for alarm 2 LOCK TURN ON Restart interlock SIGNAL MAINT Mai
18. P and DOWN buttons QE and hold it for about 3 seconds Use the UP and DOWN buttons to navigate the menu To accept choice press ENTER to cancel or exit press the UP and DOWN buttons simultaneously or wait 15 seconds Another way to go level up is to select the last position on every submenu C The menu structure is shown in table 1 Note You can protect the editing of parameters from the display menu with a password In such case it is possible only to view the meter settings and not to modify them To set or change the password use the SERVICE PASSWORD menu option If you forgot the password carry out the following procedure to remove it 1 Turn the meter power off 2 Press simultaneously and hold the UP and DOWN buttons 3 KA 3 Turn the meter power on 4 Wait for about 5 seconds and release the buttons 15 Table 1 INPUT VOLTAGE CURRENT VOLTAGE RATIO CURRENT RATIO INPUT SYNCH RANGE RANGE Parameters of input Voltage range of Current range of Voltage transfor Current transfor Input synchroni votalge input current input mer ratio mer ratio zing method CLEAR CLR EN COUNT CLRAVG CLR 10 MINV CRL MIN MAX CRL TIME CNT POWER Counters Reseting energy Reseting 10 minu Reseting minimal Reseting turning reseting counters Reseting tes and maximal and maximal on counter average power values counters values counters counter DISPLAY UPPER DISPLAY BARGRAPH PAR BARGRAPH SYM BAR
19. RAIL MOUNTED NETWORK METER TYPE N27P USER S MANUAL CE Contents 1 APPEICATON 5 2 METER SET 6 3 BASIC REQUIREMENTS SAFETY OF 7 4 INSTALLATION 4 1 Mounting method 4 2 Connections 5 OPERATION 11 5 1 Description of front panel 11 5 2 Messages after switching the power supply 11 6 MENU eek ail 12 6 17 DISpIaY 12 6 2 Menu 15 6 3 Programming the inputs 18 6 4 Reseting counters 20 6 5 Display settings 1 nein 21 6 6 Programming the alarms 22 6 7 Programming the outputs 6 8 Service settings 2 31 7 33 7 1 5485 list of 33 7 2 USB list of parameters 34 7 3 Map of N27P meter registers
20. WINDOW CLK 15 MIN CLK 30 MIN CLK 60 MIN Average active power synchronization MOVING WINDOW 15 moving window CLK 15 MIN measuring synchronized with clock every 15 minutes CLK 30 MIN measuring synchronized with clock every 30 minutes CLK 60 MIN measuring synchronized with clock every 60 minutes MOVING WINDOW Demand 9 power DEMAND POWER 144 0 144 0 Demand power to predi ct power consumption in percent of nominal value 100 0 meter for direct measurements 19 6 4 Reseting counters Reseting counters can be done from the CLEAR menu according to table 3 Table 3 CLEAR in Parameter Parameter Range Remarks Descrip Factory symbol tion value NO Reseting active ener Reseting CLREN ACTIVE gy reactive energy 1 energy COUNT REACTIVE apparent energy NO counters APPARENT counters or all of ALL them Reseting average CLR 10 NO 2 power MIN V YES ne counters Reseting 10 minu CLR MIN NO 3 tes avera YES NO ge voltage counter Reseting minimal KASUJ NO 4 and maxi MIN MAX YES NO mal value counters CLR TIME NO 9 CNT YES on counter 20 6 5 Display settings Additional display settings are available on DISPLAY position of menu according to table 4 Table 4 DISPLAY Parameter Parameter Range Remarks Descrip Factory symbo
21. e current A 6066 7066 7533 Time seconds 46 6068 7068 7534 Time hours minutes 6070 7070 7535 Date month day 6072 7072 7536 R Date year 6074 7074 7537 R Reserved 6076 7076 7538 R Status 1 6078 7078 7539 R Status 2 6080 7080 7540 R Time when U gt 0and orl gt 0 hours 6082 7082 7541 R Time of work hours 6084 7084 7542 Number of power activations 6086 7086 7543 R Minimum voltage V 6088 7088 7544 R Maximum voltage V 6090 7090 7545 Minimum current A 6092 7092 7546 Maximum current A 6094 7094 7547 R Minimum active power 6096 7096 7548 R Maximum active power 6098 7098 7549 R Minimum reactive power var 6100 7100 7550 Maximum reactive power var 6102 7102 7551 R Minimum apparent power VA 6104 7104 7552 R Maximum apparent power VA 6106 7106 7553 R Minimum active power factor 6108 7108 7554 Maximum active power factor 6110 7110 7555 R Minimum active reactive power ratio 6112 7112 7556 R Maximum active reactive power ratio 6114 7114 7557 R Minimum frequency Hz 6116 7116 7558 R Maximum frequency Hz 47 6118 7118 7559 R Minimum average active power 15 30
22. ed on the meters display while the meter is booting NO Caution Turning off the meter during update process may cause permanent damage of the meter 53 10 TECHNICAL DATA Measuring ranges and admissible basic errors for indi rect measurement version table 12 and for indirect measure ment version table 13 Table 12 Measured value Measuring range Basic error Currentln 1A 0 005 1 200 A 5A 0 025 6 000 A LU Voltage L N 100 V 5 0 120 0 0 2 of range 400 V 20 0 480 0 V Frequency 45 0 66 0 100 0 Hz 0 2 of mea sured value Active power 2 88 kW 1 00 W 2 88 kW 0 5 of range Reactive power 2 88 kvar 1 00 var 2 88 0 5 96 of range kvar Apparent power 1 00 VA 2 88 kVA 0 5 96 of range Power Factor 1 0 1 0 5 of range Tangent 1 of range Angle 180 180 1 of range Active energy 0 9 999 999 9 kWh 0 5 96 of mea sured value Reactive energy 0 9 999 999 9 kvarh 0 5 of mea sured value 54 Measured value Measuring range Table 13 Basic error Curren In 32A 0 160 38 40 A 0 2 of range 63A 0 315 75 60 A Voltage L N 0 2 of range 100 V 5 0 120 0 V 400 V 20 0 480 0 V 9j Frequency 45 0 66 0 100 0 Hz 0 2 eel measu red value Active power 36 28 kW 1 00 W 36 28 kW 0 5 of range Reactive power 36 28 kvar 1 00 var 3
23. es average voltage 11 10 seconds average frequency 12 current 3 13 ordered power 4025 RW Alarm 1 output output type 0 n on 1 n off 2 on 3 off 4 h on 5 h off 4026 RW 1440 1440 Alarm 1 output low input value x10 990 4027 RW 1440 1440 Alarm 1 output high input value x10 1010 4028 RW 0 3600 Alarm 1 output turning on delay s 4029 RW 0 3600 Alarm 1 output turning off delay s 4030 RW 0 3600 Alarm 1 output next turning on blocking time s 4031 RW 0 1 Alarm 1 output indication keeping 0 no 1 yes 38 4032 RW 0 2 13 Alarm 2 output input signal 3 0 off 1 voltage 2 current 3 active power 4 reactive power 5 apparent power 6 Power Factor 7 tangent p 8 frequency 9 average active power 10 10 minutes average voltage 11 10 seconds average frequency 12 current 3 13 ordered power 4033 RW 0 5 Alarm 2 output output type 0 n on 1 n off 2 0 3 off 4 h on 5 h off 4034 RW 1440 1440 Alarm 2 output low input value x10 4035 RW 1440 1440 Alarm 2 output high input value x10 4036 RW 0 3600 Alarm 2 output turning on delay s 4037 RW 0 3600 Alarm 2 output turning off delay s 4038 RW 0 3600 Alarm 2 output
24. ess and hold si multaneously DOWN and UP buttons 2 Z for about 2 s a n on Alarm state AL_L AL_H Measured value 24 b n off Alarm state AL_H Measured value AL_H Measured value gt AL_H Measured value Figure 8 Alarm types 25 Selecting the output values Table 6 Item value in the 4024 Displayed pa Value for per cent 4032 parameter calculations 100 4040 regi ster 00 OFF No value output disabled off 01 VOLTAGE Voltage Un V 02 CURRENT Current In A 03 ACTIVE PWR Active power Un x In x cos 0 W 04 APPARENT PWR Reactive power Un x In x sin 90 Var 05 MOC POZORNA Apparent power Un x In VA 06 POWER FACTOR Power factor PF 1 07 TANGENT tangent 1 08 FREQUENCY frequency 100 Hz 09 AVG ACTIVE PW Averaged active power x Un x In x cos 0 W 10 10MIN VOLTAGE Averaged 10 minu Un V te voltage 11 10SEC FREQ Averaged 10 se 100 Hz cond frequency 12 CURRENT 3 One third of the In A current 13 DEMAND POWER Demand power 3 x Un x In x cos 0 W 26 Alarm settings example 1 Set alarm of n on type for active power nominal ranges 5 A 400 V Alarm turning on at 2100 W turning off below 1900 W Calculating nominal active power P 400 V x 5A 2000 W 2000 W 100 2000 W 100 2100 W AL H
25. eters 0 no changes 1 update 4053 RW 0 1 Language 0 english 1 polish 4054 RW 0 1 Set default values 0 no changes 1 set default values 4055 RW 0 59 Time seconds 4056 RW 0 2359 Time hh 100 mm 4057 RW 101 1231 Date mm 100 dd 4058 RW 2000 2099 Date yyyy 4059 Reserved 4060 R 0 65535 Active energy consumed 2 most significant bytes 4061 R 0 65535 Active energy consumed 2 least significant bytes 4062 R 0 65535 Active energy supplied 2 most significant bytes 41 4063 R 0165535 Active energy supplied 2 least significant bytes 4064 R 0 65535 Reactive energy inductive 2 most significant bytes 4065 R 0265535 Reactive energy inductive 2 least significant bytes 4066 R 0 65535 Reactive energy capacitive 2 most significant bytes 4067 R 0165535 Reactive energy capacitive 2 least significant bytes 4068 R 0 65535 Apparent energy 2 most significant bytes 4069 R 0165535 Apparent energy 2 least significant bytes 4070 R Reserved 4071 R Reserved 4072 R Reserved 4073 R Reserved 4074 R Reserved 4075 R Reserved 4076 R 0 65535 Status 1 register 4077 R 0 65535 Status 2 register 4078 R 0 65535 Serial number 2 most significant bytes 4079 R 0 65535 Serial number 2 least significant bytes 4080 R 0 65535 Software version x100 4081 R 0 65535 Reserved 4082 R 0 65535 Reserved 4083 R 0 65535 Reserved
26. l tion value VOLTAGE Selection of UPPER ACTIVEPOWER meter to display FREQUE 1 display pisplay POWERFACTOR oper line of displa NCY value TANGENT FREQUENCY 5 CURRENT 3 Input BAR 2 signal for GRAPH table 6 see table 6 VOLTAGE bargraph PAR Selection of bar graph style NO displaying values changing in range from 0 to 120 of input signal YES displaying BAR values changing in iod GRAPH ee range from 120 NO U SYM to 120 of input signal If measu red value is equal or greater than 120 of nominal value then bargraph will display with sing value 120 21 Bargraph range BAR GRAPH 0 120 Settings tage value of in put parameter as a nominal value of bargraph For exam ple after selecting BARGRAPH PAR as VOLTAGE and setting BARGRAPH 96 to 50 0 at no minal voltage range as 400 V you will get the 100 bargraph reading at measured voltage equal 200 V 100 96 6 6 Programming the alarms The alarms can be programmed from the ALARM 1 ALARM 2 menus according to table 5 Table 5 ALARM 1 ALARM 2 Parameter Parameter Range Remarks Description Factory symbol value 1 Input INPUT table6 see table 6 ACTIVE signal VALUE POWER 22 Type of OUTPUT n on Setting the alarm type n on alar
27. ly for meter configuration Identifier 209 0xD1 device address 1 baud rate 9 6 kbit s transmission mode Modbus RTU unit of information 8N2 maximal time to start response 100 ms when reading 1000 ms when writing maximal registers amount to read in one query 56 x 4 bytes registers 105 x 2 bytes registers e implemented functions 03 read registers 04 read input registers 06 write 1 register 16 write n registers 17 device identification Broadcasting address 253 7 3 Map of N27P meter registers In the N27P meter the data are placed in 16 bit and 32 bit registers The process variables and meter parameters are placed in the address space of registers in the method which depends on the variable type Bits in the 16 bit registers are numbered from the least significant to the most significant bits 60 615 The 32 bit registers include the float type numbers in the IEEE 754 standard The registers ranges are presented in table 9 The 16 bit registers are shown in table 10 34 The 32 bit registers with their equivalent 2x16 bit registers are presented in table 11 The registers addresses in tables 10 and 11 are physical addresses Table 9 AE Value type Description range 4000 4083 Integer Meter configuration The va 16 bits lue is placed in 16 bit register 6000 6143 Float The value placed in two successive 2x16 bits 16 bit registers The regis
28. m TYPE n off The alarm types n on output on n off on and off are pre off sented graphically h on Figure 8 The h on type h off turns the alarm on per manently the h off turns the alarm off permanen tly Alarm 1 controls the first meter relay output Alarm 2 controls the se cond meter relay output in case of meter with two relay outputs or only indicates the alarm oc currence on the display Low value LOW 144 0 Low value of the me 99 0 96 of input LEVEL IN 144 0 9o ter controlled parame Signal ter In Figure 8 this va lue is marked as AL L High value HIGH 144 0 High value of the me 101 0 96 of input LEVEL IN 144 0 96 ter controlled parame signal ter In Fgure 8 this va lue is marked as AL H Alarm DELAY ON 0 3600 Alarm turn on de 0 5 turn on s lay in seconds delay Alarm DELAY 0 3600 Alarm turn off de 0 s turn off OFF s lay in seconds delay Blocking LOCK 0 3600 The next activation of 0 s next alarm TURN ON 5 the alarm is blocked activation for the specified time in seconds Before this time expires the next alarm will be ignored 23 Keeping SIGNAL NO Keeping the alarm signal NO the alarm MAINT YES If this option is activated signal when the alarm condition indication disappears the display shows flashing alarm number This option is 8 particularly useful as a memory of short alarms To cancel the alarm indi cation pr
29. nergy 3 apparent energy 4 all energy counters 4012 RW Reserved 4013 RW 0 1 Reseting average power counter 0 0 no change 1 reset 36 4014 RW 0 1 Reseting 10 minutes average voltage 0 0 no change 1 reset 4015 RW 0 1 Reseting minimal and maximal 0 values 0 change 1 reset 4016 RW 0 1 Reseting turning on counter 0 0 no change 1 reset 4017 RW 0 1 Reseting alarm indications 0 4018 RW 0 5 Upper displayed value 0 0 voltage 1 current 2 active power 3 Power Factor 4 tangent 5 frequency 4019 R Reserved 4020 R Reserved 4021 RW 0 13 Bargraph input signal il 0 off 1 voltage 2 current 3 active power 4 reactive power 5 apparent power 6 Power Factor 7 tangent 8 frequency 9 average active power 10 10 minutes average voltage 11 10 seconds average frequency 12 current 3 13 demand power 4022 RW 0 1 Bargraph bargraph style 0 0 normal 0 120 96 1 symmetrical 120 120 96 37 4023 RW 0 1200 Bargraf procent wej cia bargrafu 1000 100 1000 4024 RW Alarm 1 output input signal 0 off 1 voltage 2 current 3 active power 4 reactive power 5 apparent power 6 Power Factor 7 tangent 8 frequency 9 average active power 10 10 minut
30. ntenance of turning off alarm indication HIGH LEV OUT OUTPUT MODE ERROR VALUE ADDRESS MODE BAUDRATE High level of Output mode Output signal Device address Transmission Transmis output signal level on error mode sion speed 17 6 3 Programming the inputs The inputs can be programmed from the INPUTS menu according to table 2 Table 2 INPUTS T Parameter Parameter Range Remarks Descrip Factory symbol tion value Voltage VOLTAGE 100 400 V Selection of input voltage 400 V 1 range RANGE range 2 Current CURRENT 5A 32 Selection of input current 5 A 63 range RANGE 63 A range Voltage VOLTAGE 0 1 4 000 0 1 0 3 transformer RATIO ratio Current CURRENT 1 10 000 1 4 transformer RATIO ratio Input INPUT WITH VOL WITH VOLTAGE all pa WITH synchroni SYNCH TAGE rametrs are measured VOLTAGE 5 SR WITH CUR WITH CURRENT cur RENT rent and frequency only Reactive REACT PW TRIANGLE TRIANGLE TRIAN MODE SINUS HAR GLE power 5 5 calculation MON Q vS P method SINUS HARMON k 6 Q U l sin U 1 i l k HARMONIC NUM BER 21 FOR 50 Hz 18 FOR 60 Hz Reactive REACT EN CAPAC INDUC CAPAC IINDUC capa CAPAC energy MODE POSIT NEGA citiv or inductive energy IINDUC Tal Wealeulation TIVE POSIT NEGATIVE po C sitive or negative energy 18 Synchro nization of average active power PW AVG SYNCH MOVING
31. put 0 7 kV d c 56 Protection grade ensured by the casing Weight Dimensions Mounting IP 50 IP 00 from the frontal side from the terminal side lt 0 2 kg 53 X 110 X 60 mm on rail 35 mm Reference and rated operating conditions supply voltage input signal power factor analog output ambient temperature ambient temperature relative humidity admissible peak factor current voltage external magnetic field short overload 1 5 voltage input current input operating position preheating time 85 253 V a c 40 400 Hz 90 300 V d c 0 0 005 1 2 In 0 05 1 2 Un for current voltage 0 0 01 1 2 In 0 0 05 1 2 Un for power factors Pfi tg i frequency 45 66 100 Hz sinusoidal THD lt 8 1 0 1 0 20 22 mA 10 23 55 C 25 85 C lt 95 without condensation 2 2 0 40 400 A m 2 Un max 1000 V 10 In vertical 15 minutes 57 Additional errors in of the basic error from frequency of input signals lt 50 from ambient temperature changes lt 100 10 Electromagnetic compatibility noise immunity acc to EN 61000 6 2 noise emissions acc to EN 61000 6 4 Safety requirements to EN 61010 1 standard isolation between circuits basic installation category III for voltage above 300 cat Il pollution level 2 maximal phase to earth voltage for supply circuit
32. t breaker located near the device easily accessible and properly marked 4 INSTALLATION 4 1 Mounting method The N27P meter can be installed in modular distribu tion boards on the 35 mm rail bracket The meter enclosure is made of plastic and its dimensions are 53 x 110 x 60 5 mm On the outside of the meter there are screw terminal blo cks to connect the measurement signals using the leads up to 5 3 mm in cross section 1 A 5 A and up to 16 mm 32 63 A and the remaining signals using the leads up to 2 5 The meter dimensions are shown in Figure 2 i om 20 nm pee a B Figure 2 Meter dimensions The meters shall not be installed on the rail in direct contact with other heat emitting devices e g successive N27P meters Leave the minimum 5 mm space between devices to enable radiation of heat from the enclosure to the ambient air Otherwise the temperature in direct vicinity of the meter may exceed the rated operating temperature 4 2 Connections The meter connections are shown in Figure 3 L1 10 o 2 m lt a gt 5 5 00 2 g Y z 3 W NO2 1 GND m nov 7 8 9 10 11 12 13 14 15
33. ters contain byte order the same data as the 32 bit registers 3210 from the 7500 area Read only registers 7000 7143 Float The value placed in two successive 2x16 bits 16 bit registers The registers contain byte order the same data as the 32 bit registers 1032 from the 7500 area Read only registers 7500 7571 Float The value placed in one 32 bits 32 bit register Read only registers Table 10 Regi ster 5 Range Description S o address Q c 4000 RW 0 30000 Password 0 4001 RW 0 1 Input voltage range 1 0 range 100 V 1 range 400 V 4002 RW 0 1 Input current range 1 0 range 1 A 32 A 1 range 5 A 63 A 4003 RW 1 40000 Voltage transformer ratio x 10 10 35 4004 RW 1 10000 Current transformer ratio 1 4005 RW 0 1 Input synchronization 0 0 measurement of all values 1 measurement of current only 4006 RW 0 1 0 triangle 0 2 2 52 1 sine k o U Iysin U I i l k harmonic number 21 for 50 Hz 18 for 60 Hz 4007 RW 0 1 Reactive energy calculation 0 method 0 inductive and capacitive 1 positive and negative 4008 RW 0 3 Synchronization of averaged power 0 0 15 minutes walking window 1 15 minutes 2 30 minutes 3 60 minutes 4009 RW 1440 1440 Demand power x10 1000 4010 RW Reserved 4011 RW 0 4 Reseting energy counters 0 0 no change 1 active energy 2 reactive e
34. ual infor 51 mations are posted After successful connecting to the meter message Port opened will appear The meter displays UPDATE message and a progress bar on its display When LU properly detected the meter the application show information about software version and bootloader version At this point you must specify the correct firmware file by cli cking button When file is corrected LU posts message File opened Then press the Send button During the software update both LU and the meter shows the progress bar After a successfull finishing the meter reboots sets factory settings and goes to normal operation LU post message DONE and duration of updating process In the next step the previously saved configuration should be restored from eCon menu Caution Turning off the meter during update process may cause per manent damage of the meter 52 9 2 Software L2 level update Software L2 level update can be done via USB interface To perform follow the procedure 1 Turn off N27P meter 2 Plug USB cable to meters connector and to the PC on other side 3 Press and hold ENTER button and then turn the meter on 4 Release the button and wait till new removable disk drive named CRP2 ENABLD appear 5 Click left mouse button twice to open the disk drive and show its content Remove existing file named firmware bin Copy the new file in place of prevoiusly deleted 8 Reboot the meter Actual firmware version is display

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