Lumel ND10 TYPE User manual

1
METER OF NETWORK
PARAMETERS
ND10 TYPE
USER’S MANUAL

3
Contents
1.APPLICATION ................................................................... 3
2.METER SET ...................................................................... 3
3.BASIC REQUIREMENTS AND OPERATIONAL SAFETY ..................... 3
4.INSTALLATION .................................................................. 3
5.METER DESCRIPTION .......................................................... 4
6.ND10 METER PROGRAMMING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7.SOFTWARE UPGRADE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8.RS-485 INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
9.ERROR CODES .................................................................24
10. TECHNICAL DATA .............................................................. 24
11. ORDERING CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

ND10-09/1 User's manual
3
1 APPLICATION
The ND10 meter is a digital programmable panel meter destined for the measurement of the 3-
phase, 4-wire power network parameters in balanced and unbalanced systems. It is also capable of
displaying measured quantities and their simultaneous digital transmission. The meter is also capable of
controlling and optimization of the power electronic devices, systems, and industrial installations.
The meter can be used for measuring: RMS value of voltage and current; active, reactive and apparent
power; active and reactive energy, power parameters; frequency, 15-, 30- and 60-minute mean active
power and THD. Additionally, a current in the neutral wire is calculated from the phase current vectors .
Voltage and current values are multiplied by given voltage and current ratios of measuring transformers.
Power and energy indications take into account all programmed ratio values. Any and all measured values
can be sent to the master via the RS-485 interface. The relay outputs signal alarm when selected
parameters exceed set limits. Impulse output can be used for consumption check of the 3-phase real
energy. This meter is also able to detect and signal incorrect phase sequence.
The meter is powered by the measuring circuit, i.e. from the voltage output.
There is a galvanic separation between following units of the meter:
- voltage and current inputs,
- RS-485 output,
- impulse output.
2 METER SET
Complete set of the meter includes:
- ND10 Meter 1 pcs.
- user's manual 1 pcs.
- warranty card 1 pcs.
- seal 1 pcs.
- panel mounting bracket 4 pcs.
3 BASIC REQUIREMENTS, OPERATIONAL SAFETY
ND10 Meter fully conforms with the requirements of EN 61010-1 standard.
Additional comments 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.
•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.
•Building power network should include switch or automatic circuit breaker positioned in the
convenient vicinity of the meter. It should be properly marked and available to operator at all times.
4 INSTALLATION
ND10 Meter is adapted to be mounted to the panel with mounting brackets (see Fig. 1). Meter housing
is made of plastic.
Housing dimensions: 96 x 96 x 77 mm. On the outer side of the meter there are screw and tab terminal
strips that can be used for connecting external wires with diameter up to 2.5 mm2.
Prior to installation a 92,5+0.6 x 92,5+0.6 mm slot must be made in the panel. The thickness of the panel
material should not exceed 15 mm. The meter must be placed in the panel from the front. During
installation the powering voltage must be off. When the panel is inserted in the slot, mount it in place with
provided mounting brackets.

ND10-09/1 User's manual
4
1
2
Fig. 1. Meter fitting
Fig. 2. Meter dimensions
5 METER DESCRIPTION
5.1 Current n puts
All current inputs are galvanically isolated (internal current transformers). The meter is suited to operate
together with external measuring current transformers. Displayed values of currents as well as their
derivative values are automatically calculated using set ratio value of the external transformer. Current
inputs are specified in the order as either 1 A or 5 A.
5.2 Voltage nputs
Displayed values of voltages as well as their derivative values are automatically calculated using set ratio
value of the external transformer. Voltage inputs are specified in the order as either 3 x 57.7/100 V, 3 x
230/400 V or 3 x 290/500 V.

ND10-09/1 User's manual
5
5.3 Connect on d agrams
Semi-indirect measurement
in a 4-wire network
Direct measurement
in a 4-wire network
L1
L2
L3
N
1819202123 2224252627
5678911
B A
GNDI
RS 485 AL1
ND10
+
WYimp
34 2
1213141517 16
1
AL2
1819202123 2224252627
5678911
BAGNDI
RS485 AL1
L1
L2
L3
ND10
N
+
WYimp
34 2
1213141517 16
1
S
1
S
2
P
1
P
2
S
1
S
2
P
1
P
2
S
1
S
2
P
1
P
2
AL2

ND10-09/1 User's manual
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Caution: It is recommended to connect ND10 meters (RS-485) to a computer with a
shielded wire.A shield should be connected to ground in a single point. Shielded wire must be used in case
there are many interferences in the environment.
Fig 4. Connection diagrams of the meter in the 4-wire network.
Indirect measurement using
3 current transformers
and 3 voltage transformers
in 4-wire network
L1
L2
L3
S
1
S
2
P
1
P
2
S
1
S
2
P
1
P
2
S
1
S
2
P 1
P
2
N
1819202123 2224252627
5678911
BA GNDI
RS485 AL1
ND10
+
WYimp
34 2
1213141517 16
1
a
b
A
B
a
b
AB
a
bA
B
AL2

ND10-07/1 User's manual
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6 ND10 METER PROGRAMMING
6.1 Front panel
Fig. 5. Front panel
Front panel description:
1 – cancel button (ESC)
2 – move left button
3 – decrease value button
4 – increase value button
5 – move right button
6 – confirm button (ENTER)
7 – digital data transmission symbols
8 – connection / alarm symbols
9 – unit at displaying THD and power guard
10 – THD value display symbols
11 – power coefficient and power tangent
display symbol
12 – mean active power value display symbol
13 – menu safety symbol
14 – units of the displayed values
15 – 3-phase values display symbol
16 – base values ratios
17 – field for displaying base values, power, THD,
date, mean values, frequency, time and power
guard
18 – min / max value symbols
19 – symbols of value-phase connection
20 – power and energy characteristics symbol

ND10-07/1 User's manual
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6.2 Power-on messages
After connection of voltage inputs the meter performs a display test and displays the ND10 meter
name, build and current software version.
where: r n.nn is a number of the current software version or special build number.
b n.nn is a bootloader version number.
Fig. 6. Meter start messages
Caution! If the display shows Err Cal or Err EE message, please contact the maintenance
service.
6.3 Parameter d splay
In the measurement mode, values are displayed according to set tables. Pressing button (left)
or (right) allows user to switch between displayed base values (table 1). Pressing button
(down) displays minimal value and pressing button (up) displays maximal value. When these
values are displayed, pressing the ESC button resets all minimal or maximal values. When
buttons and are pressed simultaneously, respective mean 3-phase values are displayed,
together with minimal and maximal values (see Table 2).
RS-485 interface allows setting the values that are to be displayed.
Error display is described in section 8.
When reactive power is displayed, this indication is accompanied by a symbol of the load: capacity
load ( ) or inductive load ( ).
Base values displayed in the field 17 (Fig. 5.). Option (parameter) shown in the Table 1 indicated that
displaying of this parameter may be turned off in register 4056 via RS485. Turning this parameter off
(from U to tg) disables displaying their respective mean / 3-phase values.
Table 1
Displayed symbols L1,V L2,
L3
L12,V
L23,
L31
L1,A
L2,
L3
L1,W
L2,
L3
L1,Var
L2,
L3
L1,VA
L2,
L3
L1,PF
L2,
L3
L1,tg
L2,
L3
kWh
Values
displayed
row 1 U1 U12 I1 P1 Q1 S1 PF1 tg1 Active
energy
consumed
row 2 U2 U23 I2 P2 Q2 S2 PF2 tg2
row 3 U3 U31 I3 P3 Q3 S3 PF3 tg3
Display fixed optio
nal fixed fixed option al optiona loptio nal optio nal optional

ND10-07/1 User's manual
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Displayed symbols -, kWh kVarh kVarh L1, THD U L2,
L3
L1, THD I
L2,
L3,
Values
displayed
row 1
Active
output
energy
Reactive
energy
(inductive)
/
Reactive
energy
(positive)
Reactive
energy
(capacity)
/
Reactive
energy
(negative)
THD U1 % THD I1 %
row 2 THD U2 % THD I1 %
row 3 THD U3 % THD I1 %
Display optional optional optional optional optional
Displayed symbols HZ 3L, W PAVG A % Date/time
Values
displayed
row 1 f(L3) ΣP3-phase (15,
30
or 60 min.) I(N) Ordered power
consumption
(within 15, 30 or
60 min.)
Year
row 2 min min min Month.day
row 3 max max max Hours : minutes
Display optio
nal optional optional optional optional
Mean values and corresponding minimal and maximal values (when pressed on the first 8
base value screens, following markers are highlighted: 3L, ,) .
Table 2
Displayed symbols 3L, V 3L, V 3L,A 3L, W 3L, Var 3L, VA 3L, PF 3L, tg
Values
displayed
row 1 ULNav.
3-phase
ULLav.
3-phase
Iav.
3-phase P Q S PF tg
row 2 min min min min min min min min
row 3 max max max max max max max max
When upper limit of the indication range is exceeded, it is indicated by two horizontal lines in upper
part of the display. Conversely, when lower limit is exceeded, it is indicated by two horizontal lines in
the lower part of the display. When mean power is measured ΣP3-phase separate measurements are
made for 15-second quantum. Depending on chosen value (15 min, 30 min, 60 min) calculated mean
value is based on 60, 120 or 240 measurements. After the meter is turned on or after the power is
reset, the first value will be calculated in 15 seconds after turning meter on or resetting. Until all
probed values of the active power are acquired, mean power value is calculated from values already
measured. Current in the neutral wire I(N) is calculated from phase current vectors.
When alarms are activated, symbols A1 and/or A2 are displayed. When alarms are deactivated and
alarm signalization latch is turned on, flashing symbols A1 and/or A2 are displayed.

ND10-07/1 User's manual
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6.4 Operat ng modes
Fig. 7. ND10 meter operating modes
O or
3 sec
O or
3 sec
3 sec
O or 30 sec
O or 30 sec
Tryb POMIAR
TEST
Par out ALr1
min max
lub
= 0
T
N
Change of quantity
value
dAtE
Data mode
Parameters acc. to
the table 7
T
Selection
of quantities for
modification
MEASURING mode
S switching on
Supply
Display of minimum
Aand maximum value Change
of displayed
basic quantities
Display of mean
and 3-phase quantities
Erasing of alarm
support
Preview of configured
parameters
rEAd onLY SEC code Introduce the code
O or
O or
O or 30 sec
Selection
of
parameters
Meterparameters mode
Parameters acc. to the
table 3
def = Y manufacturer’s
parameters
Output parameters mode
Parameters acc. to the
table 4
def = Y manufacturer’s
parameters
Parametersofalarm1or2
mode Parametersacc. to the
table 5
def = Y manufacturer’s
parameters
O or
30 sec
O or
30 sec
O or
30 sec
O or
30 sec
30
sec 30 sec 30
sec
30 sec
30 sec
30
sec
30
sec
30
sec
O or
Selection
of quantities for
modification
Selection
of quantities for
modification
O or
Selection
of quantities for
modification
O or
O or
O or
O or
O or
Change of quantity
value Change of quantity
value Change of quantity value
O or
O or
O or
O or
min
Erasing Erasing
T tSE
or
ALr2