Lumel NR30 series User manual

RAIL MOUNTED POWER NETWORK METER
NR30
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
7NR30 PROGRAMMING ................................................................................................... 10
7.1 Frontal panel .............................................................................................................. 10
7.2 6.2. Messages after Switching the Supply on............................................................. 11
7.3 Starting operation ....................................................................................................... 11
8OPERATING MODES ...................................................................................................... 12
8.1 Measurement mode ................................................................................................... 15
8.1.1 Measurement of voltage and current harmonics.................................................. 16
8.2 Parameters mode....................................................................................................... 16
8.3 Alarm mode ................................................................................................................17
8.4 Display mode.............................................................................................................. 20
8.5 Archiving mode........................................................................................................... 23
8.6 Ethernet mode............................................................................................................ 27
8.7 Modbus mode............................................................................................................. 28
8.8 Settings mode ............................................................................................................ 28
8.9 Information mode ....................................................................................................... 28
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 ........................................................................ 30
10.4 DOWNLOADING THE ARCHIVE............................................................................ 31
11 SERIAL INTERFACES ..................................................................................................... 31
11.1 RS485 INTERFACE – the list of parameters .............................................................. 31
11.2 Examples of registers reading and saving.................................................................. 32
11.3 Ethernet 10/100-BASE-T............................................................................................ 34
11.3.1 Connection of 10/100 BASE-T interface .............................................................. 35
11.3.2 Web server .......................................................................................................... 36
11.3.3 FTP server ........................................................................................................... 37

NR30-09A User's manual 2
11.3.4 Modbus TCP/IP.................................................................................................... 39
12 MAP OF REGISTERS OF NR30 METER ........................................................................ 39
13 FIRMWARE UPGRADE ................................................................................................... 56
13.1 Update of the meter website ................................................................................... 56
13.2 Firmware upgrade - the main program of the meter................................................ 57
14 ERROR CODES............................................................................................................... 57
15 TECHNICAL DATA ........................................................................................................... 58
16 ORDERING CODES ........................................................................................................ 61

NR30-09A User's manual 3
1 APPLICATION
NR30 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. NR30 meter 1 pc.
2. User’s manual 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
mm
² /direct measurements.
Fig.1. Overall dimensions of NR30 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
or 3x230/400 V up to 3x400/690 V.

NR30-09A User's manual 5
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)

NR30-09A User's manual 6
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

NR30-09A User's manual 7
Indirect measurement
in 4-wire network
Fig.5. Input signal connection in 3-phase 4 - wire network
Semi-indirect measurement
in 4-wire network

NR30-09A User's manual 8
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.
Direct measurement in 3 - wire network

NR30-09A User's manual 9
Fig.6. Input signal connection in 3-phase 3 - wire network
6 COOPERATION WITH S4AO
For NR30 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 NR30 with S4AO using RS485 interface
The S4AO module communicates with the NR30 meter via the RS485 Modbus Master interface,
connector

NR30-09A User's manual 10
therefore cooperation with S4AO excludes the use the NR30 meter RS485 interface for
communication with another Master.
7 NR30 PROGRAMMING
7.1 Frontal panel
Fig.9. Frontal panel
NR30 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 = 106, Giga = 109
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

NR30-09A User's manual 11
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.
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) o
f
t
he 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. M
28
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
f
illing the archive of files about 14 days at 1 sec. interval. Immediately delete unnecessary files via FTP.
D
54
It blinks every 1 second. Copying from internal memory to the file archive memory. The field displays
t
he 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, NR30 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

NR30-09A User's manual 12
Fig.11. Welcome screen
NR30 – meter type, brand
Bv:01.06 – bootloader version no., Fv:0.80 – firmvare version no.
U: 3x230.0...3x400.0 V – voltage versions
63 A – current versions
8 OPERATING MODES
The NR30 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

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Fig.12a. Programming matrix
Fig.12b. Programming matrix

NR30-09A User's manual 14
Fig.12c. Programming matrix
Fig.12d. Programming matrix

NR30-09A User's manual 15
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

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8.1.1 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..51 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

NR30-09A User's manual 17
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 NR30 meters you can also use our free eCon software available at
www.lumel.com.pl.
8.3 Alarm mode
Select the Alarms mode in options and approve the choice by pressing .

NR30-09A User's manual 18
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
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

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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
phase - the condition will be met. The condition is disabled when the value of the measured
value at all phases is less than the "Lower value of the condition."
3noF – when the value of the measured quantity is lower than the "Lower value of condition” at
any phase - the condition will be met. The condition is disabled when the value of the measured
value at all phases is higher than the "Upper value of the condition."
3_on – when the value of the measured quantity at any phase will be between the "Lower value
of condition," and "Upper value of condition" - the condition is met. The condition will be disabled
if the value of the measured quantity is below the "Lower value of condition" or above the
State of condition State of condition
State of condition State of condition
Condition fulfilled Condition
ful
filled
Condition
fulfilled
Condition
fulfilled
Condition
fulfilled
Condition
not met
Condition not met
Condition not metCondition
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