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

NR30IoT-09C_R1 2User's manual
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

NR30IoT-09C_R1 3User's manual
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.

NR30IoT-09C_R1 4User's manual
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
I
o
T

NR30IoT-09C_R1 5User's manual
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)
IoT
IoT

NR30IoT-09C_R1 6User's manual
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
IoT
IoT
IoT

NR30IoT-09C_R1 7User's manual
Indirect measurement
in 4
-wire network
Fig.5. Input signal connection in 3-phase 4 - wire network
Semi-indirect measurement
in 4
-wire network
IoT
IoT

NR30IoT-09C_R1 8User's manual
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
IoT
IoT
IoT

NR30IoT-09C_R1 9User's manual
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
I
o
T

NR30IoT-09C_R1 10 User's manual
7 NR30IoT PROGRAMMING
7.1 Frontal panel
Fig.9. Frontal panel
NR30IoT meter has 3 buttons and a 20 x 4 LCD character display.
Description of the frontal panel:
value increase key
and moving up
button to decrease the value
and moving down
accept key
USB socket
V,A,W,var, VA,
Wh, varh,
Hz,
units of displayed quantities
k, M, G
kilo = 103,
Mega = 10
6,
Giga = 10
9
U1,I1, P1, ...
..EnQ
Indications of displayed
parameters
L, C
markers of the type of load
inductive, capacitive
The values of measured parameters are presented on active pages selected by subsequent
pressing of the buttons (next page) or (previous page).
Page size is determined by any 3 quantities selected from Table 1 and displayed on the screen. Defining
pages is described under Displaying mode.
I
o
T

NR30IoT-09C_R1 11 User's manual
The information bar at the top of the screen shows the status of the alarm outputs, alarm conditions, file
archive memory status, archiving status. There is also an Ethernet connection symbol on the information
bar, indicators of receiving and transmitting data to the RS485 line. In the case of reverse phase
sequence, the symbol "!” flashes. When displaying the minimum, maximum or harmonic values, the
corresponding information appears.
Fig.10. Information bar
Symbol
Information
MIN
MAX
Pressing the
button displays the minimum, maximum or current value (no symbol)
of the displayed quantity.
!
If voltage signals are connected in reverse sequence, the symbol indicating the phase
sequence error flashes.
A1, A2
Status of alarm outputs. In the event of an alarm (s), the corresponding symbols are
displayed.
1 2 3
Signaling of meeting the alarm conditions
File archive memory status
Moo
Percentage of usage of the file archive memory, e.g. M28
M?
Lack of archive memory or incorrect archive memory file system
F
97
It blinks every 1 second. Less than 7% of free space left in the file archive memory. Time to
complete filling the archive of
files about 14 days at 1 sec. interval. Immediately delete
unnecessary files via FTP
. When the file archive is full to 95%, the overwrite mode is started,
in which during further archiving and creating new archive files, the oldest archived files are
deleted.
D
54
It blinks every 1 second. Copying from internal memory to the file archive memory. The field
displays the percentage of copying progress.
E
Ethernet connection symbol
R T
Indicator of receiving and transmitting data to the RS485 line
7.2 6.2. Messages after Switching the Supply on
7.3 Starting operation
When power is turned on, the meter displays the logo, NR30IoT meter name, version, current firmware
version and MAC for versions with Ethernet, and then switches to measurement mode displaying the
page which was set as the last one. Displayed information:
Alarm 1,2,3
conditions
Min, max values
or harmonic
number
Phase sequence
error
Data transmission
RS-485
Ethernet
connected
Memory status
of the file archive

NR30IoT-09C_R1 12 User's manual
Fig.11. Welcome screen
NR30IoT – meter type, brand
Bv:01.06 – bootloader version no., Fv:0.80 – firmvare version no.
U: 3x230.0...3x400.0 V – voltage versions
63 – current versions
7.4
Language selection
The preset language is English. To select a different language, press and hold the button for about
10 seconds. The language selection menu will then appear. The language selection is made with the
or buttons and then confirmed again by pressing the accept button.
8 OPERATING MODES
The NR30IoT meter has 9 operating modes:
Measurement – normal operation mode. The values of quantities are displayed according to pre-
programmed pages or pages configured by the user in the Displaying mode.
Parameters – configuration of parameters of the meter,
Alarms – alarm configuration Alarm 1, Alarm 2,
Displaying – configuration of displayed pages,
Archiving – configuration of archived quantities,
Ethernet – configuration of Ethernet interface parameters,
Modbus – configuration of RS485 interface parameters,
Settings – settings: password, language, time, date,
Information – preview of program version, serial no., MAC address,
To enter from the Measurement mode into any mode, press and hold the button for about 3
seconds.
Use buttons to select the appropriate mode and accept with
Return to the measuring mode is done by pressing at the same time

NR30IoT-09C_R1 13 User's manual
Fig.12a. Programming matrix
Fig.12b. Programming matrix

NR30IoT-09C_R1 14 User's manual
Fig.12c. Programming matrix
Ethernet
Address
es
DHCP
Mode
IP Address
Subnet
mask
Gateway
address
DNS Address
MAC Address

Deact.
Act.

Auto
10Mb/s
100Mb/s
000.000.000.000
255.255.255.00
0
000.000.000.00
0
008.008.008.008
aa.bb.cc.00.21.01
Acquired from DHCP or entered manually when DHCP is deactivated.
Modbus
TCP
Address
Port
Max. connection
limit
Waiting time [s]
001
00502
1
001
FTP
Command port
Data port
00021
01025
WWW
Port
00080
MQTT
Connection
status
IP Address
Port no.
Publish time
[s]
Client name
Topic Name
Parameters
MQTT
On / Off
Save to
FRAM
- Disconnected
- Connecting
- Connected
000.000.000.000 01883 0005 NR30IoT-MQTT-
CLIENT
NR30IoT -MEAS-
TOPIC
standard

Voltages

Currents

Powers

Energies

others

Harmonics U1

Harmonics U2

Harmonics U3

Harmonics I1

Harmonics I2

Harmonics I3

Minimums
Maximums
Off
On
No
Yes
Fig.12d. Programming matrix

NR30IoT-09C_R1 15 User's manual
Fig.12e. Programming matrix
8.1 Measurement mode
In the Measurement mode, the values of quantities are displayed acc. to the pre-programmed or user-
configured pages in the Displaying mode.
The change of the page is done by pressing (next page) or button (previous page).
Pressing the button displays the minimum, maximum or current value (no symbol) of the
displayed quantity. Resetting minimum values is done by brief pressing the button, and then
; resetting maximum values by pressing respectively and .
When displaying inductive or capacitive reactive power or energy, a marker is displayed that indicates
the nature of the load ”L” at inductive load or “C” at capacitive load.
When displaying active energy, the "+" sign displays active energy import or "-" active energy export.
Exceeding the upper or lower indication range is indicated on the display by ∧∧∧∧ or ∨∨∨∨. When
measuring averaged values (P DMD, S DMD, I DMD ) single measurements are done with a 0.25
second quantum. Averaging time can be chosen: 15, 30 or 60 minutes. Until the time all averaged
samples are obtained, the values are calculated from already measured samples.
The current in the neutral wire IN is calculated from phase current vectors.
Fig.13. Screen of the measuring mode of the meter

NR30IoT-09C_R1 16 User's manual
Measurement of voltage and current harmonics
The choice of harmonics is made by selecting page 23 dedicated to displaying harmonic values of
voltages U1, U2, U3 and currents I1, I2, I3 simultaneously for 3-phases. The number of the displayed
harmonic can be changed in the range 2..63 after pressing the button and then
or .
Fig.14 Screen 23 - visualization of harmonics
8.2
Parameters mode
This mode is used to set the meter parameters. To enter the Parameters mode, press the button
Fig.15. Screen for selecting Parameters mode
for approx. 3 seconds, and then press the or select the Parameters mode and accept
with the button . Access to configuration of parameters is protected by password, if it has been
introduced and is different from zero. When the password is 0000, the password prompt is bypassed. If
the password is incorrect, the message "Incorrect password" is displayed. Read-only menu.” is
displayed. Then you can view the parameters, but the changes are blocked.
When the password is valid or not entered, we can set values according to Table 1.
Using we select a parameter and confirm using the button .Then using we
select the parameter feature or the desired parameter values are set. The active position is indicated by
the cursor .The selected characteristic or value of the parameter should be confirmed by
pressing the button or canceled by simultaneous pressing . To exit the Parameter
procedure, press the button or wait for about 120 seconds. Exit the Parameters selection
menu after pressing the button again or, after waiting for about 120 seconds.
Table 1
No.
Parameter name
Characteristic / value
Description
Default
value
1
Connection wire
3Ph-4W
3Ph-3W
1Ph-2W
Network type
3 phase 4 wire
3 phase 3 wire
1 phase 2 wire
3Ph-4W
2
Current range
1A, 5A
Input range:1A or 5A
5A
3
Voltage L-N
57.7 .. 100.0 V;
or
Phase input voltage
57.7 V
or

NR30IoT-09C_R1 17 User's manual
230.0 .. 400.0 V;
230.0 V
4
Voltage L-L
100.0 .. 170.0 V;
or
400.0 .. 690.0 V;
Phase-to-phase input voltage
100.0
or
400.0
5
VT primary
1 .. 1245183 V
Primary voltage of transformer
100
6
VT secondary
0.1 .. 01000.0
Secondary voltage of transformer
100.0
7
CT primary
1…20000
Primary current of transformer
5
8
CT secondary
1...1000
Secondary current of transformer
5
9
Demand integ. time
15 min, 30 min, 60 min
Averaging time
of active power P DMD,
of apparent power S DMD,
of current I Demand
15 min
10
AVG synchronization
none, with RTC
Averaging synchronized with
real time clock
none
11
Volt. Connector 2
U1, U2, U3
U1
12
Volt. Connector 5
U1, U2, U3
U2
13
Volt. Connector 8
U1, U2, U3
U3
14
Curr connector 1-3
I1,-I1,I2,-I2,I3,-I3
I1
15
Curr connector 4-6
I1,-I1,I2,-I2,I3,-I3
I2
16
Curr connector 7-9
I1,-I1,I2,-I2,I3,-I3
I3
17
Del energy counters
No, active, reactive,
apparent, all
Resetting watt-hour meters
No
18
Del demand values
No, Yes
Resetting averaged values
No
19
Set defaults param
No, Yes
Default settings of parameters
No
•During a parameter change, it is checked whether the value is within the range. In the case of setting
the value out of range, the value is set to the maximum value (when the value is too high) or to the
minimum value (when the value is too low).
•When changing the parameter "Voltage L - N", the parameter "Voltage L - L" is automatically converted
( x √3 ),
when changing the parameter "Voltage L - L", the parameter "Voltage L - N" is automatically converted (
x √3 ),
For the configuration of NR30IoT meters you can also use our free eCon software available at
www.lumel.com.pl.

NR30IoT-09C_R1 18 User's manual
8.3 Alarm mode
Select the Alarms mode in options and approve the choice by pressing .
Fig.16. Alarm mode screens
Table 2
No.
Parameter name
range
Notes / description
Default value
1
Settings
Logical conditions
C1
C1 v C2 v C3
C1
∧
C2
∧
C3
(C1
∧
C2) v C3
(C1 v C2)
∧
C3
C1
2
RLY state if AL on
on/off
State of relay with activated
alarm Deactivated/Activated
on
3
Holdback alarm off
on/off
Lock of alarm deactivation
off
4
Disp. alarm event
on/off
When the function of alarm signaling
is switched on, then after the state of
emergency the alarm symbol is not
blanked, but it begins to flash.
The signaling lasts until pressing the
buttons
The function only applies to the
alarm signaling, thus relay contacts
will act without maintaining,
according to the selected type of
alarm.
off
5
Set AL defaults
No / Yes
Default settings of parameters
No

NR30IoT-09C_R1 19 User's manual
6
Condition C1
Condition C2 Condition C2
Values
U1,I1,P1,Q1,…,gg:m
m
Value at the alarm output,
parameter acc. to table 7
U1
7
Condition type
n_on, noFF, on,oFF,
H_on,
HoFF, 3non, 3noF,
3_on, 3_oF
acc. to Fig. 17
n-on
8
Lo limit condition
-144.0…144.0
Lower value of condition
in % of the nominal value of
input quantity acc. to table 7
99.0
9
Hi limit condition
-144.0…144.0
Upper value of condition
in % of the nominal value of
input quantity acc. to table 7
101.0
10
Delay condition on
0 … 3600
Delay of condition act.
in seconds
0
11
Delay condition off
0 … 3600
Delay of condition deactivation
in seconds
0
12
Hldbk cond. off->on
0 … 3600
Locking the condition
reactivation in seconds
0
13
Display cond. event
On/off
Signaling of condition occurrence
When the function of maintaining is
switched on, after the state of
condition is finished, the condition
symbol is not blanked, but it begins
to flash.
The signaling lasts until pressing the
buttons
off
When the entered ”Upper condition value ” is lower than the ”Lower condition value ”, the condition is
disabled.
Fig.17. Types of conditions: a) n_on b) noFF c) on d) OFF
Other types of conditions:
−H_on – always met;
−HoFF – always not met,
−3non – when the value of the measured quantity exceeds the "Upper value of condition” at any
State of condition
State of condition
State of condition
State of condition
Condition fulfilled
Condition
fulfilled
Condition
fulfilled
Condition
fulfilled
Condition
fulfilled
Condition
not met
Condition not met
Condition not met
Condition
not met
Condition
not met
Lower
condition
value
Upper
condition
value
Lower
condition
value
Upper
condition
value
Lower
condition
value
Upper
condition
value
Lower
condition
value
Upper
condition
value
Measured value
Measured value
Measured value
Measured value