Lumel ND10 TYPE Manuel utilisateur
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METER OF NETWORK PARAMETERS
ND10
USER’S MANUAL
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Contents
1. APPLICATION ................................................................... 5
2. METER SET ...................................................................... 6
3. BASIC REQUIREMENTS AND OPERATIONAL SAFETY ..................... 6
4. INSTALLATION .................................................................. 7
5. METER DESCRIPTION ......................................................... 8
5.1 Current inputs .............................................................. 8
5.2 Voltage inputs ............................................................. 8
5.3 Connection diagrams ..................................................... 9
6. ND10 METER PROGRAMMING .............................................. 12
6.1 Front panel ................................................................ 12
6.2 Power-on messages ..................................................... 13
6.3 Parameter display ........................................................ 14
6.4 Operating modes ......................................................... 17
6.5 Parameter settings .......................................................18
6.5.1 Setting of meter parameters ......................................... 19
6.5.2 Setting of output parameters ......................................... 21
6.5.3 Setting of alarm parameters ......................................... 22
6.5.4 Setting date and time .................................................29
7. SOFTWARE UPGRADES ...................................................... 30
8. RS-485 INTERFACE ........................................................... 32
9. ERROR CODES ................................................................. 46
10. TECHNICAL DATA ............................................................. 48
11. ORDERING CODES ............................................................ 52
12. MAINTENANCE AND GUARANTEE ...........................................53
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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 cur-
rent 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 consump-
tion 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.
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2. METER SET
Complete set of the meter includes:
- ND10 Meter 1 pcs.
- user’s manual 1 pcs.
- seal 1 pcs.
- panel mounting bracket 4 pcs.
3. BASIC REQUIREMENTS AND
OPERATIONAL SAFETY
In the safety service scope, the transducer meets to
requirements of the EN 61010-1 standard.
Observations Concerning the Operational Safety:
• The meter should be installed and connected only
byaqualiedpersonnel.Allrelevantsafetymeasuresshould
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 electromag-
netic 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 opera-
tor at all times.
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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.
Fig. 1. Meter tting.
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Fig. 2. Meter dimensions.
5. METER DESCRIPTION
5.1. Current inputs
All current inputs are galvanically isolated (internal current trans-
formers). 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
speciedintheorderaseither1Aor5A.
5.2 Voltage inputs
Displayed values of voltages as well as their derivative values
are automatically calculated using set ratio value of the external
transformer.Voltageinputsarespeciedintheorderaseither
3 x 57,7/100 V, 3 x 230/400 V or 3 x 290/500 V.
96 76,7
69
22
92
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5.3 Connection diagrams
OUT
Direct measurement
in a 4-wire network
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OUTimp
Semi-indirect measurement
in a 4-wire network
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