Lumel ND30IoT User manual

POWER NETWORK METER
ND30IoT
USER’S MANUAL

Contents
1 APPLICATION..............................................................................................................................2
2 METER SET.................................................................................................................................2
3 BASIC REQUIREMENTS, OPERATIONAL SAFETY...................................................................3
4 INSTALLATION............................................................................................................................3
5 METER DESCRIPTION...............................................................................................................4
5.1 Current inputs .......................................................................................................................4
5.2 Voltage inputs........................................................................................................................4
5.3 External connection diagrams...............................................................................................5
6 ND30IoT Programming................................................................................................................9
6.1 Front panel............................................................................................................................9
6.2 Starting work.......................................................................................................................11
6.3 Language selection.............................................................................................................11
7 OPERATING MODES................................................................................................................12
7.1 Measurement mode............................................................................................................16
7.1.1 Measurement of voltage and current harmonics...............................................................17
7.1.2 Analog indicator ................................................................................................................17
7.2 Parameters mode................................................................................................................18
7.3 Alarms mode.......................................................................................................................21
7.4 Analog output mode............................................................................................................23
7.5 Display mode......................................................................................................................24
7.6 Archiving mode....................................................................................................................28
7.7 Ethernet mode.....................................................................................................................31
7.8 Modbus mode.....................................................................................................................32
7.9 Settings mode ....................................................................................................................33
7.10 Information mode .............................................................................................................34
8 MEASURING VALUES ARCHIVING..........................................................................................35
8.1 INTERNAL MEMORY.........................................................................................................35
8.2 COPYING ARCHIVE ..........................................................................................................35
8.3 ARCHIVE FILES STRUCTURE..........................................................................................36
8.4 DOWNLOADING ARCHIVE ...............................................................................................36
9 SERIAL INTERFACES...............................................................................................................37
9.1 RS485 INTERFACE – list of parameters.............................................................................37
9.2 Examples of registers' readout and write............................................................................37
9.3 Ethernet interface 10/100-BASE-T......................................................................................40
9.3.1 Connecting 10/100-BASE-T interface.........................................................................40
9.3.2 Web Server.................................................................................................................41
9.3.2.1 General view........................................................................................................42
9.3.2.2 Web user selection .............................................................................................42
9.3.3 FTP Server..................................................................................................................43
9.3.3.1 FTP user selection................................................................................................44
9.3.4 Modbus TCP/IP...........................................................................................................46
9.3.5 MQTT protocol.............................................................................................................46
10 MAP OF ND30IoT METER REGISTERS.................................................................................58
11 SOFTWARE UPGRADE...........................................................................................................80
11.1 Upgrade of the meter website...........................................................................................80
11.2 Firmware update - main program of the meter..................................................................81
12 ERROR CODES.......................................................................................................................82
13 TECHNICAL DATA...................................................................................................................82
14 ORDERING CODE...................................................................................................................86

ND30IoT-09A 2 User's manual
1 APPLICATION
The ND30IoT meter is a programmable digital instrument designed for the measurement
of 1-phase 2-wire and 3-phase 3 and 4-wire power network parameters in balanced or
unbalanced systems. The measured values are displayed on a 3,5’’ TFT full-color screen,
resolution: 320 x 240 pixel. The meter enables control and optimization of the power electronic
devices, systems and industrial installations.
The meter provides measurement of: RMS of voltage and current, active, reactive and apparent
power, active, reactive and apparent energy, power factors, frequency, the harmonics of current
and voltage /up to 51st/, THD of voltage and current, averaged 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 the measuring transformers. Power and
energy indications take into account all programmed ratio values. The value of each measured
value can be transmitted to the master system via the RS-485 or Ethernet interface. Three relay
outputs signal the overflow of the chosen value and the programmable analog output maps the
assigned parameter. The temperature inputs can be used to control the temperature of the
transformers windings, motors.
There is a galvanic separation between following units of the meter:
- supply
- voltage inputs
- current inputs
- RS485 interface
- Ethernet interface
- alarm outputs
- analog output
- temperature input Pt100
- binary inputs 0/5...24 V d.c.
2 METER SET
Complete set of the meter includes:
1. ND30IoT meter 1 pc
2. seal 1 pc
3. screw clamp to fix in the panel 4 pcs
4. plug with 16 screw terminals 1 pc
5. plug with 14 screw terminals 1 pc
6. user's manual 1 pc

ND30IoT-09A 3 User's manual
Fig. 1. Meter set
3 BASIC REQUIREMENTS, OPERATIONAL SAFETY
In terms of operational safety the controller meets the requirements of the EN 61010-1 standard.
Remarks concerning safety:
The meter should be installed and connected only by a qualified personnel. All relevant
safety measures should be observed during installation.
Always check the connections before turning the meter on.
Prior to taking the meter housing off, always turn the supply off and disconnect the
measuring circuits.
Removal of the meter housing during the warranty period voids the warranty.
This meter conforms to all requirements of the electromagnetic compatibility in the
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 by the operator, and suitably marked.
4 INSTALLATION
The meter is intended to be fixed to the panel with mounting brackets as presented on Fig. 1.
The meter housing is made of a self-extinguishing plastics.
Fig. 2. Meter fitting

ND30IoT-09A 4 User's manual
Housing overall dimensions 96 x 96 x 77 mm, dimensions of the assembly hole 92.5 x 92.5 mm.
There are screw terminal strips on the outer side of the meter which enable the connection of
external wires of diameter up to 2.5 mm2.
Fig. 3. Overall dimensions of the ND30IoT meter
5 METER DESCRIPTION
5.1 Current inputs
All current inputs are galvanically isolated (internal current transformers). The meter is adapted to
work with external measuring current transformers / 1 A or 5 A /. Displayed current values and
derivative values are automatically converted in relation to the introduced external current
transformer ratio.
5.2 Voltage inputs
All voltage inputs are galvanically isolated (internal transformers). Values on voltage inputs are
automatically converted according to the introduced ratio of the external voltage transformer.
Voltage inputs are specified in the order as 3x57.7/100 V, 3x230/400 V or 3x110/190 V,
3x400/690 V.
IoT

ND30IoT-09A 5 User's manual
5.3 External connection diagrams
External connections are shown in Fig. 4.
a) version with binary inputs
Fig. 4. Meter connections
2120191816 1715141312
A1
26252422 23
A2
BGNDI
ND30IoT
L1 L2 L3 N
A
RS485
+
0.. 20
27
296 7431 1185
IL1 IL2 IL3
B1 B2
mA +(-) -(+) +(-) -(+)
Option

ND30IoT-09A 6 User's manual
Fig. 5. Direct measurement, indirect and semi-indirect in a 1-phase network
Direct measurement
in 4-wire network
ND30IoT
296 7431 1185
L1
S2
S1
P
2
P1
N
b
a
B
A
1
11 3
2
L1
S2
S1
P
2
P1
N
13
N
L1
211
ND30IoT
296 7431 1185
N
L1
L2
L3

ND30IoT-09A 7 User's manual
Fig. 6. Meter connections of input signals in a 3-phase 4-wire network
ND30IoT
296 7431 1185
L2
L3
N
S
2
S
1
P
2
P
1
S
2
S
1
P
2
P
1S
2
S
1
P
2
P
1
L1
Semi-indirect measurement
in 4-wire network
L1
L2
L3
N
b
a
B
A
b
a
B
A
b
a
B
A
ND30IoT
296 7431 1185
S
2
S
1
P
2
P
1
S
2
S
1
P
2
P
1S
2
S
1
P
2
P
1
L1
L2
L3
N
b
a
B
A
2
5
8
b
a
B
A
Indirect measurement
in 4-wire network
ND30IoT
296 7431 1185
L1
L2
L3
Direct measurement in
a 3-wire network

ND30IoT-09A 8 User's manual
Fig. 7. Meter connections of input signals in a 3-phase 3-wire network
L1
L2
L3
b
a
B
A
b
a
B
A
b
a
B
A
ND30IoT
296 7431 1185
L1
L2
L3
b
a
B
A
2
5
8
b
a
B
AS
2
S
1
P
2
P
1
S
2
S
1
P
2
P
1
Indirect measurement using 2 current
transformers and 2 or 3 voltage
transformers in a 3-wire network
ND30IoT
296 7431 1185
L2
L3
S
2
S
1
P
2
P
1
S
2
S
1
P
2
P
1
L1
Semi-indirect measurement
using 2 current
transformers in a 3-wire
network

ND30IoT-09A 9 User's manual
6 ND30IOT PROGRAMMING
6.1 Front panel
Fig. 8. Front panel
The ND30IoT meter has 6 buttons and a full-color graphic screen.
Front panel description:
f1, ... , f8 8 field displays - the digits for
readout and settings,
DMD Averaged value indicator (Demand)
V, A, W, var,
VA, Wh,
varh,
H
units of the displayed values k, M kilo = 103, Mega = 106
U1, I1,
P1, ...
EnQ
displayed parameters markings The markers indicating the inductive,
capacity load character
The values of the measured parameters are shown on the active pages selected by subsequent
pressing the buttons (next page) or (previous page).
The page consists any 8 values selected from the Table 1 and displayed simultaneously on the
display. The page definition is described in the Display mode. Depending on the location, meter
buttons can perform different functions. Functions are described in the bar on the bottom of the
screen. If the button lacks description, it is inactive at the moment.
Fig. 9. Buttons marking – example
Information bar at the top of the screen displays the status of the alarm outputs, alarm conditions,
T1 and T2 temperature of the sensors connected to the first and second input of PT100, files
archive memory status, archive status, a symbol of Ethernet connection, the indicators of
receiving and transmitting data on the RS485 link, date and real-time clock. A symbol "phase
sequence error" will be blinking in case of a negative phase sequence.
Function
of button 1
Function
of button 2
Function
of button 3
Function
of button 4
Function
of button 5
Function
of button 6

ND30IoT-09A 10 User's manual
a) version with Pt100 inputs
b) version with binary inputs
Fig. 10. Information bar

ND30IoT-09A 11 User's manual
6.2 Starting work
After switching the supply on, the meter displays the ND30IoT meter name, version, current
software version and MAC for the version with Ethernet and then moves to the measurement
mode and last saved page. Displayed information:
ND30IoT v:1.00 – meter type, program version number
Bootloader v.01.05 – bootloader version number
U: 57.7/230.0 V – voltage versions
I: 1.0/5.0 A – current versions
MAC: AA:BB:CC:DD:EE:FF
Fig. 11. Screen of meter measuring mode
6.3 Language selection
The preset language is English. To select a different language, press and hold the Menu button
for about 10 seconds. The language selection menu will appear. The language selection is made
with the or buttons and then confirmed again by pressing the OK button.

ND30IoT-09A 12 User's manual
7 OPERATING MODES
The ND30IoT meter has 10 operating modes:
Measure – normal work mode. In the Measure mode the values are displayed according to the
pages that are preset at the factory or configured by the user.
Parameters – meter parameters configuration
Alarms – Alarm 1, Alarm 2 configuration
Analog output – analog output configuration
Display – displayed pages configuration
Archiving – archived values configuration
Ethernet – Ethernet interface configuration
Modbus – RS485 interface parameters configuration
Settings – settings: password, language, time, date
Information – preview of a program version, serial number, MAC address
To move from the Measure mode to any other mode, press the button for approx. 3
seconds.
Buttons allow to select the appropriate mode, to accept press the button
To return to a measurement mode use the button
Menu
Select
Exit

ND30IoT-09A 13 User's manual
Fig. 12a. Programming matrix

ND30IoT-09A 14 User's manual
Fig. 12b. Programming matrix

ND30IoT-09A 15 User's manual
Fig. 12c. Programming matrix
Fig. 12d. Programming matrix

ND30IoT-09A 16 User's manual
Fig. 12e. Programming matrix
7.1 Measurement mode
In the Measure mode the values are displayed according to the pages that are preset at the
factory or configured by the user in the Display mode.
Changing the page is done by pressing the buttons or .
Preview of the maximum or minimum values respectively is done while the button or
is pressed down. Reset of maximum or minimum values is done by pressing the button
while viewing their values, i.e. first the button or and then must be
pressed.
Simultaneously pressing the button and will copy internal memory to files archive.
When reactive power or reactive inductive or capacity energy is displayed, this indication is
accompanied by a symbol of the load character: for an inductive load or for a capacity
load.
When displaying the active power, the sign "+" is displayed for active energy import or "-" for
active energy export.
Exceeding of the upper or lower indication range is signaled on the display by or .
For measurement of the averaged values (P DMD, S DMD, I DMD) single measurements are
carried out with 0.25 second quantum. Averaging time to choose from: 15, 30 or 60 minutes. Until
all samples of the averaged values are acquired, the values are calculated from already
measured samples.
Min Min
Max
Del Del
Max
Max Min

ND30IoT-09A 17 User's manual
Current value in the neutral wire IN is calculated from phase current vectors.
7.1.1 Measurement of voltage and current harmonics
The choice of harmonics is done by selecting the pages dedicated to display the values of
voltage harmonics U1, U2, U3 and currents I1, I2, I3 simultaneously for 3-phase (page 11). The
number of a displayed harmonics can be changed in the range of 2..51 by the buttons or
Page 12 shows a bar chart of the harmonics for each phase: voltage at the top and currents at
the bottom of the screen. Page 12 shows a bar chart of the harmonics. The choice of displayed
harmonics is done by pressing a button . The button is used to select the groups
of harmonics: harm2- harm26, harm27 - harm52 or harm2- harm51.
Fig. 13. Screens 11 and 12 - visualization of harmonics
7.1.2 Analog indicator
Page 13 shows the mapping of the selected quantity on the analog indicator. The
selection of displayed quantity is made in the Display mode as described in item 7.5,
by selecting page 13. Preview or hiding of the maximum or minimum values takes place after
pressing the or button respectively. Deleting the maximum or minimum values is
done by pressing the and then or button.If the lower or upper scale
threshold is exceeded, the message BOTTOM SCALE or UPPER SCALE appears.
L1,2,3 +
Max Min
Del Max Min

ND30IoT-09A 18 User's manual
Fig.13a. Screen 13 - visualization of the analog indicator
7.2 Parameters mode
This mode is used to determine the parameters of the meter. To enter Parameters mode press
the button for approx. 3 seconds and next using the button or select
Parameters mode, to accept press the button . The parameters configuration mode is
protected by a password, if it was entered and it is different from zero. The password prompt is
skipped for the password 0000. If the password is incorrect, the message "Wrong password.
Read only menu" is displayed. Then it is possible to view the parameters, but the changes are not
possible.
Fig. 14. Screens while entering a password
If the password is correct or it has not been entered, you can set the values according to Table 2.
Buttons are used to choose the parameter, to accept press the button .
Then use the buttons to choose the features of a parameter or set the requested
parameter values, i.e. you can choose the digit in the decimal position by the button or
the digit value by the button or . The active position is signaled by the cursor.
Set value or parameter can be accepted by the button or canceled by pressing .
Exit from the Parameters procedure follows pressing simultaneously the button or after
waiting for approx. 120 seconds. Exit from the Selecting parameters menu follows pressing the
button or after waiting for approx. 120 seconds.
Menu
OK
Select
Select
Cancel
Esc
Exit

ND30IoT-09A 19 User's manual
Fig. 15. Screens of Parameters mode
Table 1
Ite
mParameter name Feature / value Description Default settings
1 Connection wire 3 phase -4 wire
3 phase -3 wire
1 phase -2 wire
Type of power network
3-phase 4-wire
3-phase 3-wire
1-phase 2-wire
3 phase -4 wire
2 Current input range 1A, 5A Input range: 1A or 5A 5A
3 Voltage input range 3x57.7/100 V;
3x230/400 V;
or
Choice of the ranges
depending on the
ordering code
3x230/400 V
or
3x400/690 V
Menu button min. 3 sec.
Button
Select
The buttons
Button
Select
- choice of the features
OK - acceptance
Cancel - resignation
Measurement