Lumel N20PLUS User Manual
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Lumel N20PLUS User Manual

Digital panel meter
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DIGITAL PANEL METER
N20
PLUS
USER'S MANUAL
1

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Summary of Contents for Lumel N20PLUS

  • Page 1 DIGITAL PANEL METER PLUS USER’S MANUAL...

  • Page 3: Table Of Contents

    Contents 1. APPLICATION AND METER DESIGN ........5 2. METER SET ................. 6 3. BASIC REQUIREMENTS, OPERATIONAL SAFETY ....6 4. INSTALLATION ................8 5. SERVICE..................10 6. MODBUS REGISTER MAP ............18 7. ERROR CODES ................ 22 8. TECHNICAL DATA ..............23 9.

  • Page 5: Application And Meter Design

    The free eCon software (available at www.lumel.com.pl) is destined for the configuration of the N20PLUS meter. The meter should be connected to a PC computer via the RS485 to USB converter, e.g. PD10.

  • Page 6: Meter Set

    The protection grade of the meter from the front side is IP65. Dimensions 96 x 48 x 64 mm (including terminals). The meter housing is made of self-extinguishing plastic. Fig. 1. view of the N20PLUS meter 2. METER SET The set is composed of: - N20PLUS meter ........
  • Page 7 In the safety service scope, the N20PLUS meter meets the requirements of the EN 61010-1 standard. 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.

  • Page 8: Installation

    4. INSTALLATION The meter has separable strips with screw terminals which enable the con- nection of external wires of 2.5 mm . In the version for current measure- ment, the plug enables permanent fi xing to the socket by means of screws. One must prepare a hole of 92 +0.6 ...
  • Page 9 RS485 Sygnały pomiarowe Sygnały pomiarowe zasilanie zasilanie RS485 RS485 Fig. 4. Electrical connections of the N20PLUS meter Rys. 4. Połączenia elektryczne miernika N20 Rys. 4. Połączenia elektryczne miernika N20 PLUS PLUS Rys. 4. Połączenia elektryczne miernika N20 PLUS Rys. 4. Połączenia elektryczne miernika N20 Rys.

  • Page 10: Service

    5. SERVICE 5.1. Display Description Measured Highlighted value unit Alarm indexes Indexes of actual value displaying Fig. 6. Frontal panel 5.2. Messages after the Supply Connection   After connecting the supply, the meter displays the X, where X the letter marking the execution of the meter: U – voltage measure- ment, I –...
  • Page 11 5.3. Meter Configuration The free eCon software (available at www.lumel.com.pl) is destined for the N20PLUS meter configuration. The meter should be connected to a PC computer via the RS485 to USB converter, e.g. PD10, and then in the E-Con program, select the transmission parameters according to those set in the meter.
  • Page 12 b) decimal point – measurement precision. We have 5 possible display configurations at choice. When choosing, one must follow the measurement precision, e.g.: for the 10 V range – the measurement error is 0.02 V, so the choice of precision with three places after the decimal point does not give more precise measurements.
  • Page 13 Table 1 Averaging Number of Updating of displayed values time averaging time 0.5 s every 0.5 s every 0.5 s every 0.5 s every 0.5 s 10 s every 0.5 s 15 s every 0.5 s 20 s every 0.5 s c) thresholds of displayed overflows: one can narrow limits beyond which overflows will be displayed, taking into consideration the individual characteristic.When the measured value is beyond 0…110% of the...
  • Page 14 5.4.3. Setting of Alarm Parameters rametry alarmów ki A i B są parametrami charakterystyki indywidualnej. Two alarms are available in the N20PLUS meter. Both alarms are working independently and each of them has 6 working modes: u N20 dostępne są dwa alarmy. Oba pracują niezależnie i każdy z nic Parametry alarmów...
  • Page 15 Remaining types of the alarm: h-on – always switched on; h-off – always switched off. 5.4.4. Communication Parameters The N20PLUS meter is equipped with an isolated RS-485 interface and communication takes place via the Modbus RTU protocol. The following parameters are available to configure the correct communication: - address on the Modbus, can take values from the range 1 ...
  • Page 16 5.4. Manufacturer Parameters Table 2 Parameter description Range/value Manufacturer value Display colour of the measured red, green, orange upper value Display colour of the measured red, green, orange orange middle value Display colour of the measured red, green, orange green lower value 105% of rated value Un, Upper threshold - KpH...
  • Page 17 n-on, n-off, on, off, h-on, Action mode of the alarm output 1 n-on h-off Upper value of the alarm 1 105% of rated value Un, -19999…99999 switching - Aon In, or 200°C Lower value of the alarm 1 100% of rated value Un, -19999…99999 switching - Aoff In, or 100°C...

  • Page 18: Modbus Register Map

    6. MAP OF MODBUS REGISTERS In the N20PLUS meter, the data is placed in 16 and 32 bit registers. Parameters and measured values of the meter are placed in the address space in a way depending on the variable value type. In 16-bit registers, bits are numbered from the youngest to the oldest (b0-b15).
  • Page 19 4003 Display color for values 0 - orange b e t w e e n K p L a n d K p H 1 - red thresholds (Fig. 7) set in 2 - green registers 7602 and 7603 4004 Display color for values above 0 - orange the KpH threshold (Fig.
  • Page 20 4012 Restoring factory parameters 0 - do not do anything of the meter 1 - restore parameters 4013 The meter status, read only value, represents the current operating status. 4014 reserved Not applicable 4015 reserved Not applicable 4016 reserved Not applicable 4017 reserved Not applicable...
  • Page 21 Table 5 Register Address Description Changes range type 7600 Parameter A of the individual -19999…99999 characteristic (section 5.4.2.d) 7601 Parameter B of the individual -19999…99999 characteristic (section 5.4.2.d) 7602 Value of exceeding the upper -19999…99999 display value 7603 Value of exceeding the lower -19999…99999 display value 7604...

  • Page 22: Error Codes

    7. ERROR CODES After connecting the meter to the network, messages about errors may appear. Causes of errors are presented below: Overflow of the upper value of the programmed indica- tion range. In the option with Pt100, it also signals the incorrect connection of the wire to the terminal 4.

  • Page 23: Technical Data

    7. TECHNICAL DATA Measuring ranges: INPUTS: Measuring ranges of Un voltage: -165 mV...-150 mV...150 mV...165 mV -1 mV...0 mV...150 mV...165 mV -82,5 mV...-75 mV...75 mV...82.5 mV input resistance > 1 M -1 mV...0 mV...75 mV...82.5 mV -1 V... 0 V...10 V...11 V -11 V...
  • Page 24 Additional errors in rated operating conditions: - compensation of reference  0.2% of the range junction temperature changes: - compensation of wire resistance changes:  0.2% of the range - from ambient temperature changes:  (0.1% of the range/10 K) Averaging time: £...
  • Page 25 Short duration overload capacity (3 s): - sensor inputs 30 V - voltage input 10 Un - current input 10 In Readout field 5-digit three-colour LED displays: - digit height: 14 mm, - colours: green, orange, red - indication range: -19999...99999 Ensured protection grade from frontal side IP 65 acc.

  • Page 26: Execution Codes

    9. ORDERING CODES Table 6 N20PLUS X X XX XX Input: Pt100: -50...400 °C Thermocouple J: -50...1200 °C Thermocouple K: -50...1370 °C 0...20 mA 4...20 mA  20 mA 0...75 mV 0...10 V  10 V 0...150 mV  75 V ...
  • Page 27 - After agreeing with the manufacturer ORDERING EXAMPLE: The Code N20PLUS 910100E0 - means: N20ZPLUS meter with voltage input on  10 V, supply 85... 253 V a.c., standard version, user’s manual in English, without aditional quality requirements. Unit„V”...
  • Page 28 LUMEL S.A. ul. Sulechowska 1, 65-022 Zielona Góra, POLAND tel.: +48 68 45 75 100, fax +48 68 45 75 508 www.lumel.com.pl Export department: tel.: (+48 68) 45 75 139, 45 75 233, 45 75 321, 45 75 386 fax.: (+48 68) 32 54 091...

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