Lumel NA5PLUS User manual

METER WITH A MULTICOLOURED
BARGRAPH
NA5PLUS
USER’S MANUAL

NA5Plus-09 User’s Manual 2___ _______________________________
Contents
1. APPLICATION.............................................................................................................3
2. NA5PLUS SET...........................................................................................................3
3. BASIC REQUIREMENTS, OPERATIONAL SAFETY..................................................4
4. INSTALLATION...........................................................................................................5
4.1. Installation............................................................................................................5
4.2. External connections diagram..............................................................................6
5. Operation....................................................................................................................8
5.1 Changing meter parameters from the keyboard..................................................10
6. RS-485 Interface.......................................................................................................22
6.1. Serial interface connection method....................................................................22
6.2 MODBUS protocol...............................................................................................22
6.3 Description of the MODBUS protocol functions..................................................22
6.4 Map of NA5Plus meter registers.........................................................................24
6.5 Registers for recording and reading....................................................................25
6.6 Read-only registers.............................................................................................32
7. Meter configuration with E-Con software..................................................................33
8. METER PROGRAMMING EXAMPLES....................................................................34
9. BEFORE YOU REPORT A DEFECT.........................................................................35
10. SOFTWARE UPDATE.............................................................................................37
11. TECHNICAL DATA..................................................................................................38
12. ORDERING CODES...............................................................................................41

NA5Plus-09 User’s Manual 3___ _______________________________
1. APPLICATION
NA5Plus series meters with a bar graph have a universal input designed to measure
temperature, resistance, voltage from shunts, standard signals, dc voltage and dc current. They
can be used in various industries, such as: food industry, pumping stations and sewage
treatment plants, chemical industry, weather stations, meteorological stations, breweries. They
are intended for the visualisation of the measured quantity and evaluation of change trends of
controlled technological processes. They can also be used in automation systems where
programmed controllers are applied.
NA5Plus meters have, depending on the version, one or two continuous outputs (voltage or
current), 4 relay outputs or 8 open collector (OC) type outputs, as well as an RS-485 interface.
The meters are programmable via the keyboard and via RS-485.
NA5Plus meters perform the following functions:
measurement of the input quantity and displaying it on the display and the bar graph,
recalculations of the input signal into indication on the base of the individual multipoint
characteristics,
arithmetical functions: raising to a power, extraction of roots,
programming of colours and bar graph resolutions,
signalling of exceeding the set alarm values;
recording of the measured signal in programmed time intervals,
storage of maximum and minimum values,
programming of the measurement averaging time,
programming of the indication resolution,
deadlock of the parameter introduction by means of a password,
conversion of the measured quantity into a voltage or current output signal,
RS-485 interface support in MODBUS RTU protocol.
Fig. 1: View of NA5Plus meter.
2. NA5PLUS SET
The complete set of NA5Plus meter includes:
•NA5Plus Meter 1 pc
•user’s manual 1 pc
•signal terminal strip (16 terminals) 2 pcs
•supply terminal strip (3 terminals) 1 pc
•holders to fix the meter in the panel 2 pcs

NA5Plus-09 User’s Manual 4___ _______________________________
3. BASIC REQUIREMENTS, OPERATIONAL SAFETY
Meaning of the symbols used in this manual:
Warning!
Warning of potentially dangerous situations. It is especially important to
read and understand these instructions before connecting the device.
Failure to meet the instructions that are marked with this symbol can
result in serious injury of personnel and damage to the device.
Caution!
Generally useful notes. Following these instructions ensures easy
operation of the device. The user must take them into account when the
operation of the device does not meet the user’s expectations.
Possible consequences when these instructions are not followed!
In terms of operational safety, the meter meets the requirements of DIN EN 61010-1.
Safety instructions:
The assembly and the installation of the electrical connections may be carried out only
by a duly qualified electrician.
The person performing the installation is responsible for the safety of the system in
which devices is installed.
Before turning on the module verify the connections.
Removal of the meter housing during the warranty period voids the warranty. The
module power supply must be turned off and the input circuits disconnected before
opening the housing.
The device is intended for installation and use in industrial electromagnetic
environments.
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.
In the event of damage, the meter can be repaired only by the service authorized by the
manufacturer.
Before using the repaired meter make sure that it is working properly.
Connection of the meter and/or its usage inconsistently with this manual can reduce the
operational safety of the meter.

NA5Plus-09 User’s Manual 5___ _______________________________
4. INSTALLATION
4.1. Installation
The NA5Plus meter is designed to be mounted on a panel. For this purpose, a 44.0 x 137.5
mm hole should be prepared in the panel. The thickness of the material from which the panel
was made should be in the 1.45 mm range.
In the back of the meter housing there are detachable terminal strips, enabling connection of
power supply, input signals, output signals and RS482 interface with wires with a cross-section
of up to 2.5 mm2. The dimensions of the meter are shown in Fig. 2.
Fig. 2: Dimensions of the meter

NA5Plus-09 User’s Manual 6___ _______________________________
4.2. External connections diagram
The connections of the meter are shown in Figure 3. In the event when the meter is powered
with DC voltage, the voltage polarity does not matter.
Fig. 3: Electrical connections of NA5Plus meter
*) optional elements, depending on the meter's version

NA5Plus-09 User’s Manual 7___ _______________________________
Resistance thermometer in two-wire
system or resistance measurement Resistance thermometer in three-
wire system
Thermocouple or ± 75mV, ±
300 mV voltage
± 10 V, ± 600 V voltage input ± 40 mA current input ± 5 A current input
Fig. 4: Input signals connection method
8 open collector outputs (OC)
continuous outputs (voltage / current)
Interface RS-485 (MODBUS)
Fig. 5: Output signals connection method
depending on the version
Taking into consideration electromagnetic interference it is recommended to use shielded
conductors for the connection of input and output signals. The power supply must be
connected by means of a two-wire conductor with a suitable cross-section ensuring its
protection by means of an installation fusible cut-out, in case of a short-circuit.
The requirements concerning the supply cable are regulated by EN 61010-1 p.6.10 standard.
1 2 3
R
1 2 3
R2 3-
+
3 4 5 6
GND ± 600 V
3 4 5 6
GND ± 300 mA
3 4 5 6
GND ± 5 A
GND OC8 OC7 OC6 OC5 OC4 OC3 OC2 OC1
27 28 29 30 31 32 33 34 35
RL4 RL3 RL2 RL1
28 29 30 31 32 33 34 35
4 relay outputs
23 24 25 26
AN2 AN1
++
--

NA5Plus-09 User’s Manual 8___ _______________________________
5. Operation
After connecting external signals and switching on the power supply, the meter displays the
type and current version of the meter program.
After ca 3 seconds, the meter switches automatically to the operating mode in which it carries
out measurements and displays the measured value on the display and the bar graph.
Depending on alarm parameters settings, the resolution and bar graph type, alarm thresholds
are also displayed on the bar graph. The meter blanks automatically insignificant zeros.
Fig. 6: Description of the front panel of the NA5Plus meter
Functions of the keys:
accept button
–entering the programming mode (hold this key for about 3 seconds).
–entering the chosen parameter level,
–entering the parameter value changing mode
–accepting the changed parameter value.
display
accept button
increase value button
resignation button
bargraf
lower alarm threshold
upper alarm threshold

NA5Plus-09 User’s Manual 9___ _______________________________
value increase key
–displaying the minimum and maximum values successively for
subsequent measurement channels
–navigating the preview menu or programming matrix
–changing the value of the selected parameter - increasing the value
cancel key
–entering the menu of registered results
–entering the parameter preview menu (hold for about 3 seconds)
–exit from the preview menu or programming matrix
–resignation from the parameter change
Pressing and holding the key for about 3 seconds causes entering the programming
mode. The programming mode is secured with the seC security code.
Pressing and holding the key for about 3 seconds causes entering the menu of the
preview and the menu of recorded values. Navigating the preview menu is done using the
key. In this menu, all programmable parameters of the meter are available for read-out,
with the exception of service parameters. The exit from the preview menu is done by means of
the key.
An overview of the recorded values is possible after pressing the key on the resl
parameter in the preview menu. The recorded result number is displayed alternately
with the value e.g. n320/2!74. Navigating the recorded values is done using the key.
Holding this key for longer than about 2 seconds will speed up the browsing. Pressing the
key at any time will display the number of recorded results. The exit from the viewing recorded
values is done by pressing the key.

NA5Plus-09 User’s Manual 10___ _______________________________
Fig. 7 The NA5Plus meter operation algorithm
Displaying the following symbols and inscriptions on the display means:
err incorrectly entered security code
**** upper measuring range exceeded or no sensor
____ lower measuring range exceeded or no sensor
errC error of the conductor resistance compensation. Conductor not connected or damaged
5.1 Changing meter parameters from the keyboard
Pressing the key for approx. 3 s causes the display of the SEC message alternately
with the factory-set value of 0. Entering the correct code results in entering the programming
mode. Figure 8 shows the transition matrix in the programming mode. The key allows for
moving around the main parameters groups, e.g.: Ch1, bAr1, AL1, AL2,etc.
Pressing the key on the given level, causes the entry into parameters of this level.
Moving around a given level takes place by means of the key. To change the value, use the
key. To cancel the parameter change, press the key. The same key is used to
exit the selected level and programming matrix to the measurement.
The transitions matrix in the programming mode is shown in Figure 9.
During operation of the meter in the programming mode, the measurement result is displayed
on the bar graph, except for selecting the display test function.
password
entry mode
seC
3 s
Correct
password
programming
matrix
yes
no
display of the
inscription
err
Matrix
navigation
- entrance to the selected level
- entry to parameter changes
- exit from the programming
matrix
resetting of alarm
outputs
Measurement
3 s
Preview
menu
Displaying the minimum
value
Displaying the maximum
value
preview recorded
values
3 s
Navigation
around next
values
navigating
through the
preview