Lumel N27P User Manual
  1. Manuals
  2. Brands
  3. Lumel Manuals
  4. Measuring Instruments
  5. N27P
  6. User manual

Lumel N27P User Manual

Rail mounted network meter
Hide thumbs Also See for N27P:
Table of Contents

Advertisement

Quick Links

Download this manual
rail mounted network meter
N27P
user's manual
1

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the N27P and is the answer not in the manual?

Questions and answers

Related Manuals for Lumel N27P

Summary of Contents for Lumel N27P

  • Page 1 N27P user’s manual...

  • Page 3: Table Of Contents

    6.7 Programming the outputs ............29 6.8 Service settings ..............31 7. SERIAL INTERFACES ..............33 7.1 RS485 – list of parameters ............. 33 7.2 USB – list of parameters ............34 7.3 Map of N27P meter registers ..........34 8. ERROR CODES ................49...
  • Page 4 9. FIRMWARE UPDATING ..............50 9.1 Software L1 level update............50 9.2 Software L2 level update............53 10. TECHICAL SPECIFICATION ............54 11. ORDERING CODE ............... 59...

  • Page 5: Application

    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 • 10 minutes’ mean voltage • current • active power •...

  • Page 6: Meter Set

    N27P meter ......1 pc User Manual ......1 pc Warranty Card ......1 pc CD ........... 1 pc Accessories: The following accessories can be ordered for the N27P meter: - USB A/miniUSB cable – 1 m, black; order code: 1126-271-028...

  • Page 7: Basic Requirements, Safety Of Use

    3. BASIC REQUIREMENTS, SAFETY OF USE The symbols used in the manual have the following meaning: Warning! Potentially hazardous situations. Read before connecting device! Failure to observe recommendations marked with this symbol can result in heavy personal injuries and device damage Caution! Generally useful notes.

  • Page 8: Installation

    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.
  • Page 9 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.

  • Page 10: Connections

    4.2 Connections The meter connections are shown in Figure 3. Range 32 A / 63 A 63 A Range 1 A / 5 A Figure 3. N27P wiring diagrams...

  • Page 11: Operation

    5. OPERATION 5.1 Description of front panel Display 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.

  • Page 12: Menu

    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 Additional displayed value. Selec- produced tion with use of button „▼”. Figure 5. N27P meter display...
  • Page 13 The main displayed value is selected using the UP button in the following sequence: Current Active power Reactive Voltage power Apparent Frequency power Power Factor Tangent j Figure 6. Selecting main displayed value...
  • Page 14 The additional displayed value is selected using the DOWN button in the following sequence: Produced active Inductive reactive energy energy Consumed Capacitive active energy reactive energy Apparent Bargraph energy Figure 7. Selecting additional displayed value The upper displayed value is selected from the meter menu (DISPLAY→UP DISPLAY).

  • Page 15: Menu Structure

    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 UP and DOWN buttons ( ) and hold it for about 3 seconds. Use the UP and DOWN buttons ( ), to navigate the menu.
  • Page 16 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 CLR AVG CLR 10 MIN V CRL MIN-MAx...
  • Page 17 REACT PW REACT EN PW AVG 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 Restart interlock Maintenance of turning off alarm indication DELAY OFF...

  • Page 18: Programming The Inputs

    6.3 Programming the inputs The inputs can be programmed from the INPUTS menu according to table 2. Table 2 INPUTS Parameter Parameter Range Remarks/Descrip- Factory symbol tion value Voltage 100 V, 400 V 400 V VOLTAGE Selection of input voltage RANGE range range...
  • Page 19 MOVING Synchro- MOVING PW AVG Average active power SYNCH synchronization: WINDOW nization of WINDOW MOVING WINDOW CLk 15 MIN average – 15-minutes moving CLk 30 MIN active window CLk 60 MIN power CLk 15 MIN – measuring synchronized with clock every 15-minutes CLk 30 MIN - measuring synchronized with clock...

  • Page 20: Reseting Counters

    6.4 Reseting counters Reseting counters can be done from the CLEAR menu according to table 3. Table 3 CLEAR Parameter Parameter Range Remarks/Descrip- Factory symbol tion value Reseting active ener- Reseting ACTIVE gy, reactive energy, CLR EN energy REACTIVE apparent energy COUNT counters...

  • Page 21: Display Settings

    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 symbol tion value VOLTAGE CURRENT Selection of para- Upper ACTIVE POWER UPPER meter to display on FREQUE- display POWER FACTOR...

  • Page 22: Programming The Alarms

    Settings a percen- tage value of in- parameter a nominal value of bargraph. For exam- ple, after selecting BARGRAPH PAR. Bargraph BAR- 0...120 [%] as VOLTAGE and 100 [%] range GRAPH % setting BARGRAPH % to 50.0 % at no- minal voltage range as 400 V, you will get the 100 % bargraph...
  • Page 23 Type of OUTPUT n-on Setting the alarm type. n-on alarm TYPE n-off The alarm types n-on, output n-off, on and off are pre- 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.
  • Page 24 keeping SIGNAL keeping the alarm signal. the alarm MAINT If this option is activated, signal when the alarm condition indication disappears, the display shows flashing alarm number. This option is particularly useful as a memory of short alarms. To cancel the alarm indi- cation, press and hold si- multaneously DOWN and UP buttons (...
  • Page 25 Measured value b) n-off Alarm state Alarm state Measured value Measured value c) on Alarm state Measured value d) off Alarm state Measured value Figure 8. Alarm types Alarm state...
  • Page 26 Selecting the output values: Table 6 Item/ value in the 4024, Displayed Value for per cent Value type 4032, parameter calculations (100 %) 4040 regi- ster No value /output disabled off/ VOLTAGE Voltage Un [V] * CURRENT Current In [A] * ACTIVE PWR.
  • Page 27 2500: nominal voltage 400 V. Maximal momentary power 1.5 MW. Calculating: nominal active power of N27P meter: P = 400 V x 2500 A (500 x 5 A) = 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;...
  • Page 28 Imported Ordered power power (energy) Time State of contacts Relay enabled Relay disabled Ordered power AL_H = 90.0 % AL_L = 89.9 % CTime of delay AL_dt_on = 0 sec Figure 9. Measurement of demand active power, synchronized with the clock for 15 minutes, with alarm set at 90 % of utilization Set: INPUT...

  • Page 29: Programming The Outputs

    6.7 Programming the outputs The outputs can be programmed in the OUTPUT menu accor- ding to table 7. Table 7 OUTPUT Parameter Factory Parameter Range Remarks/Description symbol value Input parame- INPUT table 6 (code acc. to table 6) ACTIVE ter of analogue VALUE POWER output...
  • Page 30 Manual set- MAN SET- NOR- Manual control of ana- NORMAL tings TING logue output. The NOR- REG. option controls 4044 the output on the basis REG. perfformacne 4045 specified by the valu- es set in LOW VALUE, HIGH VALUE, LOWE LEVEL, HIGH LEVEL (fig. 9). In REG. 4044 or REG.

  • Page 31: Service Settings

    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 Facto- Parameter Modifica- Parameter Remarks/Description ry set- symbol tion range tings Restore DEFAULT Option to restore the...
  • Page 32 Access PAS- 0... Password preventing password SWORD 30000 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.

  • Page 33: Serial Interfaces

    7. SERIAL INTERFACES 7.1 RS485 – list of parameters • Identifier: 209 (0xD1) • device address: 1..247 • baud rate: 4.8, 9.6, 19.2, 38.4, 57.6, 115.2 kbit/s • transmission mode: Modbus RTU • unit of information: 8N2, 8E1, 8O1, 8N1 • maximal time to start response: 100 ms when reading...

  • Page 34: Usb - List Of Parameters

    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.
  • Page 35 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 Address Value type Description range 4000 - 4083 Integer Meter configuration. The (16 bits) placed 16-bit register.
  • Page 36 4004 1..10000 Current transformer ratio 4005 Input synchronization: 0 – measurement of all values 1 – measurement of current only 4006 0 – triangle √ −P 1 – sine ∑ ⋅I ⋅sin (∢U i =1 k – harmonic number (21 for 50 Hz, 18 for 60 Hz) 4007 Reactive energy calculation...
  • Page 37 4014 Reseting 10-minutes average voltage 0 – no change 1 – reset 4015 Reseting minimal and maximal values 0 – no change 1 – reset 4016 Reseting turning-on counter 0 – no change 1 – reset 4017 Reseting alarm indications 4018 0...5 Upper displayed value...
  • Page 38 4023 0...1200 Bargraf – procent wejścia bargrafu 1000 (1000 – 100 %) 4024 0...13 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 φ...
  • Page 39 4032 0...13 Alarm 2 output – input signal 0 – off 1 – voltage 2 – current 3 – active power 4 – reactive power 5 – apparent power 6 – Power Factor 7 – tangent φ 8 – frequency 9 – average active power 10 –...
  • Page 40 4040 0...13 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 φ 8 – frequency 9 – average active power 10 –...
  • Page 41 4049 0...3 Transmission mode 0 – 8N2 1 – 8E1 2 – 8O1 3 - 8N1 4050 0...5 Baud rate 0 – 4800 bit/s 1 – 9600 bit/s 2 – 19200 bit/s 3 – 38400 bit/s 4 – 57600 bit/s 5 –...
  • Page 42 4063 0..65535 Active energy supplied 2 least significant bytes 4064 0..65535 Reactive energy inductive 2 most significant bytes 4065 0..65535 Reactive energy inductive 2 least significant bytes 4066 0..65535 Reactive energy capacitive 2 most significant bytes 4067 0..65535 Reactive energy capacitive 2 least significant bytes 4068 0..65535 Apparent energy 2 most significant bytes 4069...
  • Page 43 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 x 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...
  • Page 44 Bit 2 - „1” - frequency averaging time in progress Bit 1 - „1” - voltage averaging time in progress Bit 0 - „1” - 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 0 - „1” - alarm 1 active...
  • Page 45 Table 11 Address dress Description 16-bit 32-bit registers regi- sters 6000/7000 7500 Voltage U 6002/7002 7501 Current I 6004/7004 7502 Active power P 6006/7006 7503 Reactive power Q 6008/7008 7504 Apparent power S 6010/7010 7505 Active power factor 6012/7012 7506 Active/reactive power ratio 6014/7014 7507...
  • Page 46 6032/7032 7516 Supplied active energy (meter mea- suring up to 99999,9 kWh) 6034/7034 7517 Inductive reactive power (number of register overflows 7517, zeroed af- Mvarh ter 99999999,9 kvarh is exceeded) 6036/7036 7518 Inductive reactive power (meter kvarh measuring up to 99999,9 kvarh) 6038/7038 7519 Capacitive reactive power (number of register overflows 7520, zero- Mvarh...
  • Page 47 6068/7068 7534 Time – hours, minutes 6070/7070 7535 Date – month, day 6072/7072 7536 Date – year 6074/7074 7537 Reserved 6076/7076 7538 Status 1 6078/7078 7539 Status 2 6080/7080 7540 Time when U >0 and / or I > 0 hours 6082/7082 7541...
  • Page 48 6118/7118 7559 Minimum average active power 15, 30, 60-minute 6120/7120 7560 Maximum average active power 15, 30, 60-minute 6122/7122 7561 Reserved 6124/7124 7562 Reserved 6126/7126 7563 Reserved 6128/7128 7564 Reserved 6130/7130 7565 Minimum cosine φ 6132/7132 7566 Maximum cosine φ 6134/7134 7567 Minimum φ shift angle 6136/7136 7568 Maximum φ phase angle 6138/7138...

  • Page 49: Error Codes

    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 –...

  • Page 50: Firmware Updating

    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.
  • Page 51 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 actual infor-...
  • Page 52 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.

  • Page 53: 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.

  • Page 54: Techical Specification

    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 Current In 0.005 .. 1.200 A~ 0.2 % of range 0.025 .. 6.000 A~ Voltage L-N 100 V 5.0 ..
  • Page 55 Table 13 Measured value Measuring range Basic error Curren In 0.160 .. 38.40 A~ 0.2 % of range 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 0.2 % of measu- Frequency 45.0 .. 66.0 … 100,0 Hz red value Active power -36.28 kW...1.00 W...36.28 kW...
  • Page 56 Relay outputs: NO type contacts load capacity 250 V~/0.5 A~ number of cycles 1x10 Analog output programmable: current (maximal range) 0..+22 mA load resistance: 0...250 Ω disposable voltage: 15V basic error: 0.2 % of range resolution: 0.05 % of range Serial interfaces RS485: address 1..247; mode: 8N2, 8E1, 8O1,8N1; baud rate: 4.8, 9.6, 19.2, 38.4, 57.6, 115.2 kbit/s, USB for configuration: 1.1 / 2.0,...
  • Page 57 Protection grade ensured by the casing: from the frontal side IP 50 from the terminal side IP 00 Weight < 0.2 kg Dimensions 53 x 110 x 60 mm Mounting on rail 35 mm Reference and rated operating conditions - supply voltage 85..253 V a.c.
  • Page 58 Additional errors: in % of the basic error - from frequency of input signals < 50 % - from ambient temperature changes < 100 % / 10°C Electromagnetic compatibility: - noise immunity acc. to EN 61000-6-2 - noise emissions acc. to EN 61000-6-4 Safety requirements: according to EN 61010-1 standard •...

  • Page 59: Ordering Code

    11. ORDERING CODE Table 14 N27P- X X XX X X 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 Version: standard custom-made* Language: Polish...
  • Page 60 ORDER EXAMPLE: The code N27P-1100E0 means: N27P - N27P meter, 1 - for indirect measurements in the 1 A/5 A range, 1 - two relay outputs, 00 - standard version, E - English version, 0 - without extra requirements.
  • Page 64 LUMEL S.A. ul. słubicka 4, 65-127 Zielona Góra, Poland tel.: +48 68 45 75 100, fax +48 68 45 75 508 www.lumel.com.pl Informacja techniczna: tel.: (68) 45 75 140, 45 75 141, 45 75 142, 45 75 145, 45 75 146 e-mail: sprzedaz@lumel.com.pl...

Table of Contents