Lumel NR30IoT User manual

rail mounted power network meter
to IoT applications
NR30IoT
user’s manual

Contents
1APPLICATION...................................................................................................................................3
2METER SET.......................................................................................................................................3
3BASIC REQUIREMENTS, OPERATIONAL SAFETY ...................................................................3
4INSTALLATION ................................................................................................................................4
5DESCRIPTION...................................................................................................................................4
5.1 Current inputs...............................................................................................................................4
5.2 Voltage inputs...............................................................................................................................4
5.3 Connection of the meter ...............................................................................................................5
5.4 External connections diagram ......................................................................................................6
6COOPERATION WITH S4AO ..........................................................................................................9
7NR30IoT PROGRAMMING............................................................................................................10
7.1 Frontal panel...............................................................................................................................10
7.2 6.2. Messages after Switching the Supply on.............................................................................11
7.3 Starting operation .......................................................................................................................11
7.4 Language selection.....................................................................................................................12
8O P E R AT IN G MODES .....................................................................................................................12
8.1 Measurement mode ....................................................................................................................15
Measurement of voltage and current harmonics...............................................................................16
8.2 Parameters mode ........................................................................................................................16
8.3 Alarm mode................................................................................................................................18
Display mode ........................................................................................................................................20
8.4 Archiving mode..........................................................................................................................23
8.5 Ethernet mode ............................................................................................................................27
8.6 Modbus mode.............................................................................................................................28
8.7 Settings mode .............................................................................................................................29
8.8 Information mode.......................................................................................................................29
9EXTENDED FUNCTIONALITY ....................................................................................................30
10 MEASURED VALUES ARCHIVING .............................................................................................30
10.1 INTERNAL MEMORY..........................................................................................................30
10.2 COPYING THE ARCHIVE ...................................................................................................30
10.3 STRUCTURE OF ARCHIVE FILES.....................................................................................31
10.4 DOWNLOADING THE ARCHIVE ......................................................................................32
11 SERIAL INTERFACES....................................................................................................................32
11.1 RS485 INTERFACE – the list of parameters.............................................................................32
11.2 Examples of registers reading and saving..................................................................................32
11.3 Ethernet 10/100-BASE-T...........................................................................................................35
11.3.1 Connection of 10/100 BASE-T interface............................................................................35
11.3.2 Web server...........................................................................................................................36

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11.3.3 FTP server ...........................................................................................................................38
11.3.4 Modbus TCP/IP ..................................................................................................................40
11.3.5 MQTT Protocol...................................................................................................................40
12 MAP OF REGISTERS OF NR30IoT METER.................................................................................53
13 FIRMWARE UPGRADE..................................................................................................................74
13.1 Update of the meter website ...................................................................................................74
13.2 Firmware upgrade...................................................................................................................75
13.2.1 Firmware upgrade – for loader version v1.0x (x=1..9)..............................................................75
13.2.2 Firmware upgrade – for loader version 2.xx (x=00..99)................................................................76
14 ERROR CODES ...............................................................................................................................76
15 TECHNICAL DATA.........................................................................................................................77
16 ORDERING CODES........................................................................................................................80

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1 APPLICATION
NR30IoT meter is a digital programmable instrument designed to measure network parameters
of single-phase 2-wire and three-phase 3 and 4-wire balanced and unbalanced systems.
The measured values are displayed on a 20 x 4 LCD character display. The meter enables controlling
and optimizing the operation of power electronics devices, systems and industrial installations.
It provides measurement of: RMS voltage and current, active, reactive and apparent power, active,
reactive and apparent energy, power factors, frequency, harmonic currents and voltages / up to 51st /,
THD of current and voltage, average active and apparent power, P Demand, S Demand, averaged
current I Demand /15, 30 or 60 minutes/. Voltages and currents are multiplied by given voltage and
current ratios of measuring transformers / for indirect connections /. Indications of power and energy
take into consideration values of programmed ratios. The values of the measured quantities can be
transmitted to the host system through RS485 interface or Ethernet interface, relay outputs signal
overruns of the selected parameters.
The meter has a galvanic separation between the individual blocks of:
- power supply,
- voltage inputs,
- current inputs (for versions In 1 A/ 5 A),
- RS485 Interface,
- Ethernet Interface:
- alarm outputs,
2 METER SET
Complete set of the Analyzer includes:
1. NR30IoT meter 1 pc.
2. User’s manual – Quick Start 1 pc.
3 BASIC REQUIREMENTS, OPERATIONAL SAFETY
In terms of operational safety, the meter meets the requirements of DIN EN 61010-1.
Safety instructions:
•The meter installation and connection should be made by qualified personnel. All available
protection requirements must be taken into consideration.
•Before turning the meter on verify the connections.
•Prior to removing the meter housing, always turn the supply off and disconnect the
measurement circuits.
•Removal of the meter housing during the warranty period voids the warranty.
•The meter meets the requirements for electromagnetic compatibility in industrial environment.
•A switch or a circuit-breaker should be installed in the building or facility. It should be located
near the device, easily accessible to the operator, and suitably marked.

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4 INSTALLATION
The meter is adapted for installation in a modular installation switchgears on a 35 mm support rail.
The housing of the meter is made of plastic.
Housing dimensions are 105 x 110 x 60 mm. Outside the meter there are screw terminal strips that allow
connection of external wires with a cross-section up to 5.3 mm2 / indirect measurements/ and up to 16
mm² /direct measurements.
Fig.1. Overall dimensions of NR30IoT meter
5 DESCRIPTION
5.1 Current inputs
All current inputs are galvanically isolated (internal current transformers). The meter is adapted for direct
connections / up to 63 A / or for use with external current transformers / 1 A or 5 A /. Displayed values of
currents and derivative quantities are automatically converted according to the introduced external
current transformer ratio.
5.2
Voltage inputs
Quantities at voltage inputs are automatically calculated by the amount of introduced ratio of the
external voltage transformer. Voltage inputs are defined in the order as 3x57.7/100 V up to 3x100/170 V
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or 3x230/400 V up to 3x400/690 V.
5.3
Connection of the meter
Description of the meter external terminals is shown in Fig 2.
Fig.2. Connection of the meter: a) in the version for indirect connections (1 / 5 A)
b) in the version for direct connections ( 63 A )
a)
b)
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Direct measurement
in 4-wire network
5.4 External connections diagram
Fig.3. Direct, semi-direct and indirect measurement in 1-phase network
Fig.4. Direct measurement in 4-wire network version 63 A
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Indirect measurement
in 4
-wire network
Fig.5. Input signal connection in 3-phase 4 - wire network
Semi-indirect measurement
in 4
-wire network
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Indirect measurement using 2 current
transformers and 2 or 3 voltage
transformers in 3
- wire network.
Semi-direct measurement
using 2 current transformers in
3
- wire network.
Fig.6. Input signal connection in 3-phase 3 - wire network
Direct measurement in 3 - wire network
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6 COOPERATION WITH S4AO
For NR30IoT versions with the S4AO block of 4 analog outputs, side connector for connecting blocks
is included. The connector can also be ordered separately: order code 24-171-01-00016
Fig.7. Connecting blocks using the side connector
Fig.8. Connection of NR30IoT with S4AO using RS485 interface
The S4AO module communicates with the NR30IoT meter via the RS485 Modbus Master interface,
therefore cooperation with S4AO excludes the use the NR30IoT meter RS485 interface for
communication with another Master.
connector
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