ENA3D Energy Meter
Product Information
The 3PH Energy Meter is a technical device used for measuring
electrical energy consumption. It is designed for installation and
comes with a user manual for proper usage. The product is
manufactured by ETI d.d. and is available in the ENA3D and ENA3
models.
The meter features buttons and indication LEDs for easy
operation. The buttons include Measurements Menu, Value Decrease,
Value Increase, and Confirm selection. The indication LEDs display
various parameters such as Voltage (True RMS), Current, Frequency,
True Power, Volt-Amp Reactive, Volt-Amp Apparent, Total Harmonic
Distortion Voltage %, Total Harmonic Distortion Current %,
Watt-hours, Volt-Amp Reactive hours, Inductive Load, Capacitive
Load, Temperature (internal temperature sensor), and Alarm Relay
status.
The product also includes an electrical diagram for
installation, providing guidance on wiring connections. There are
two wiring diagrams available: 144×144 and 9 MOD.
For proper setup and configuration, the meter offers a set-up
menu with basic and advanced parameters. The basic set-up menu
allows users to adjust parameters such as current transformer
ratio, voltage transformer ratio, and power reading interval. The
advanced menu provides additional parameters for customization.
Product Usage Instructions
- To enter the basic set-up menu:
- Press the Measurements Menu button for 5 seconds.
- The display will show the Basic Set-up Menu.
- Press the Value Increase or Value Decrease button to show the
parameter value. - Press the Confirm selection button to enter and change the
parameter value. - Use the Value Increase or Value Decrease button to adjust the
value. - Once the value is correct, press the Confirm selection button
to return to Basic parameters. - Use the Value Increase or Value Decrease button to scroll
through the programmable parameters. - Program all parameters until the last one.
- After the last parameter, press the Confirm selection button
again to save all data. - All LEDs will light up for a few seconds.
- If the display shows an error message, it means the data could
not be saved. In this case, you need to program all the parameters
again in the Basic set-up menu.
- To enter the advanced menu:
- Press the Measurements Menu button for 5 seconds.
- The display will show the Basic Set-up Menu.
- Press both the Value Decrease and Value Increase buttons for 2
seconds until the display shows the Advanced Menu. - Press the Value Increase or Value Decrease button to show the
parameter value. - Press the Confirm selection button to enter and change the
parameter value. - Use the Value Increase or Value Decrease button to adjust the
value. - Once the value is correct, press the Confirm selection button
to return to Advanced parameters.
3PH – ENERGY METER
TECHNICAL MANUAL OF INSTALLATION
ENA3D
ENA3
INDEX
1 – BUTTONS AND INDICATION LEDs: …………………………………………………………………….. 2 2 – ELECTRICAL DIAGRAM FOR INSTALLATION: ……………………………………………………… 2 3 – SET-UP MENU: ……………………………………………………………………………………………………. 3 4 – ENTER THE ALARMS MENU: ………………………………………………………………………………. 5 5 – MEASUREMENTS FUNCTIONS:……………………………………………………………………………6 6 – TECHNICAL DATA: ……………………………………………………………………………………………… 7 7 – TERMINAL CONNECTIONS: ………………………………………………………………………………… 8 8 – DIMENSIONS: ……………………………………………………………………………………………………… 9
REGISTERS MODBUS-RTU TABLE ON REQUEST
!!! IMPORTANT !!! READ THE INSTALLATION MANUAL BEFORE USE.
THE SAFETY OF THE PRODUCT IS STRICTLY RELATED TO ITS USE THAT HAS TO BE DONE AS SPECIFIED BY THE MANIFACTURER.
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1 – BUTTONS AND INDICATION LEDs:
1.1 Buttons:
– Measurements Menu – Value Decrease – Value Increase – Confirm selection
1.2 Indication LEDs
V
– Voltage (True RMS)
A
– Current
Hz
– Frequency
Cos – Cos
W
– True Power
VAr
– Volt-Amp Reactive
VA
– Volt-Amp Apparent
V% THD – Total Harmonic Distortion Voltage %
A% THD – Total Harmonic Distortion Current %
Wh
– Watt-hours
VArh – Volt-Amp Reactive hours
IND
– Inductive Load
CAP – Capacitive Load
TEMP – Temperature (internal temperature sensor)
1-2-3 – Alarm Relay status
k
– Multiplier measure x1000
M
– Multiplier measure x1000000
2 – ELECTRICAL DIAGRAM FOR INSTALLATION: 2 / 9
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144×144 – Wiring Diagram:
9 MOD – Wiring Diagram:
Q1 – The installer has to provide an external disconnection device; this breaker has to be easily reachable and identified as: “disconnection device”.
( ) – Without transformer . = 1
For higher supply voltage than the supported range, insert one transformer each Phase and set . with transformer ratio.
3 – SET-UP MENU: 3.1 ENTER THE BASIC SET-UP MENU:
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a) Press
button for 5 seconds.
b) The display will show
c) Press
button to show the parameters value .
d) Press
button to enter and change the parameter value.
e) Press
button to increase or
button to decrease value.
f) When the value is OK press
button to return at Basic parameters.
g) Press
or
button to scroll the programmable parameters.
h) Proceed and program all parameters until the last .
i) After last parameter press again
button to save all data, display will shows and exit the Basic set-up Menu.
All LEDs will light for a few seconds.
l) If the display shows , an error has happened and was not possible to save the data.
Therefore it will be necessary to program again all the parameters on the Basic set-up menu.
Basic Set-up Menu:
PAR.
NAME
DESCRIPTION
RANGE
DEFAULT
. .. Current transformer ratio.
5 … 50000
5
. . (1) . (2)
. . . .
Voltage transformer ratio (ex. VLINE / VSET = 500 / 400 = 1.25) Power Reading Interval. Average time filter Value.
0.40 … 100 60s … 360s
1 … 20
1.00 90s
4
(1) – Parameter . adjusts the time window width for the integration of current and power maximum demand. (2) – Parameter . allows to modify the stabilising effect that the Average function applies to all readings.
3.2 ENTER THE ADVANCED MENU:
a) Press the
button for 5 seconds.
b) The display will show
c) Press
both buttons for 2 seconds until the display shows
d) Press
button to show .
e) Press
button to enter and change the parameter value.
f) Press
button to increase or
button to decrease value.
g) When the value is OK press
button to return at Advanced parameters.
h) Press
or
to scroll the programmable parameters.
i) Press
button to increase or
button to decrease the value.
l) Proceed and program all parameters until the last .
m) After last parameter press again
button to save all data, display will shows and exit the Advance Menu.
All LEDs will flash for a few seconds.
n) If the display shows , an error has happened and was not possible to save the data.
Therefore it will be necessary to program again all the parameters on the Advance Menu. Advance Set-up Menu:
PAR.
NAME
DESCRIPTION
RANGE DEFAULT
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.
–
Mains Connection
0 = Three-Phase
1 = Single-Phase
. . Voltage Reference for Measures (steps of 5)
L/L – Three-Phase L/N – Single-Phase
..
1 = CT on L1 Direct 2 = CT on L1 Inverse
. .. Sense of CT current
1 = CT on L2 Direct 2 = CT on L2 Inverse
..
1 = CT on L3 Direct 2 = CT on L3 Inverse
.
–
Frequency
1 = 50 HZ
2 = 60 HZ
. . Serial interface TTL
0 = Disable
1 … 99 = Enable
. .
.
–
Temperature scale
0 = °C
1 = °F
–
List of settable Alarms (view details on the next Alarms Menu)
0 Proprietary 9600 Bds
EVEN
1 Bit Stop
1 Modbus 19200 Bds EVEN
1 Bit Stop
2 Modbus 9600 Bds
EVEN
1 Bit Stop
3 Modbus 4800 Bds
EVEN
1 Bit Stop
4 Modbus 2400 Bds
EVEN
1 Bit Stop
5 Modbus 1200 Bds
EVEN
1 Bit Stop
6 Modbus 19200 Bds
ODD
1 Bit Stop
7 Modbus 9600 Bds
ODD
1 Bit Stop
Serial
8 Modbus 4800 Bds
ODD
1 Bit Stop
–
Protocol
9 Modbus 2400 Bds
ODD
1 Bit Stop
Type
10 Modbus 1200 Bds
ODD
1 Bit Stop
11 Modbus 19200 Bds NONE
1 Bit Stop
12 Modbus 9600 Bds
NONE
1 Bit Stop
13 Modbus 4800 Bds
NONE
1 Bit Stop
14 Modbus 2400 Bds
NONE
1 Bit Stop
15 Modbus 1200 Bds
NONE
1 Bit Stop
16 Proprietary 9600 Bds
NONE
1 Bit Stop
17 Proprietary 4800 Bds
NONE
1 Bit Stop
18 Proprietary 9600 Bds
ODD
1 Bit Stop
* The values 1 to 99 indicate the device number when the units are connect on a serial interface.
0 … 1 220 … 440
1 … 2 1 … 2 0 … 99 0 … 1
0 … 18
0 400
1
1 1 * 0
0
3.3 TO SET DEFAULT PARAMETERS:
– In parameter, press all buttons together
for 5 seconds, on display will shows
Now the device will restart.
ATTENTION: All settings made on the device will be lost and all steps will be restored to default setting.
4 – ENTER THE ALARMS MENU:
a) Press
button for 5 seconds.
b) The display will show
c) Press
both buttons for 2 seconds until the display shows
d) Press
button several time until the display shows .
e) Press
button to enter in list of settable Alarms, display shows .
f) Press
or
buttons to scroll Alarms that can be set: . > . > . > . > . > . > .
g) Press
button to display the values set for the selected Alarm.
h) The display shows .
i) Press
or
buttons to scroll Alarm values that can be set: . > . . > . . > . > (only for .)
l) Press
button to enter and change the desired Alarm values.
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m) Press
button to increase or
button to decrease value.
n) When the value is OK press
button to save value and return at Alarm values.
o) After setting all the desired Alarm values press
button to return at list of settable Alarms.
p) After setting all the desired settable Alarms press
button to return at Advanced parameters.
q) Press
button to get another Advanced parameter.
r) After last parameter press again
button to save all data, display will shows and exit the Advance Menu.
All LEDs will flash for a few seconds.
s) If the display shows , an error has happened and was not possible to save the data.
Therefore it will be necessary to program again all the parameters on the Advance Menu.
Alarms Set-up:
PAR.
. . . . . . .
Description Too High Voltage Too Low Voltage Too High Current Over Temperature
THD % I Low Cos Discard Freq. Hz
Range Enable . (default)
0 = disable 110 … 150 (110)
0 = disable 80 … 95 (95)
50 … 500000 (100)
0 = disable 30° … 60° (60°)
0 = disable 5 … 200 (120)
0 = disable 0.5 … 0.95 (0.90)
0 = disable ±1 … ±5 (5)
Delay Time . . (default)
1 … 240 (10) 1 … 240 (10) 1 … 240 (10) 1 … 240 (10) 1 … 240 (10) 1 … 240 (10) 1 … 240 (10)
Value time . . (default)
Min / Sec (Sec)
Min / Sec (Sec)
Min / Sec (Sec)
Min / Sec (Sec)
Min / Sec (Sec)
Min / Sec (Sec)
Min / Sec (Sec)
Alarm Relay Set Select Phase
. (default)
(default)
0 = disable 1-2-3 (1)
–
0 = disable 1-2-3 (1)
0 = disable 1-2-3 (1)
–
0 = ALL (0) 1 = L1 2 = L2 3 = L3
0 = disable 1-2-3 (1)
–
0 = disable 1-2-3 (1)
–
0 = disable 1-2-3 (1)
–
0 = disable 1-2-3 (1)
–
Alarms Fixed:
Display Code
Description
Intervention Parameter
.
Set-up parameters error
The set-up parameters read by the EEPROM aren’t correct. To restore is necessary the re-set made by the user.
.
Adjustment/setting parameters error
The setting parameters read by the EEPROM aren’t correct. The device operates with the default parameters. There could be error in the calculated measures. The user can’t do the setting. It is necessary to return the unit to the manufacturer.
.
Parameters error
The setting parameters read by the EEPROM aren’t correct (set Cos, sensitivity, operation mode). To reset is necessary to contact the manufacturer.
.
Cancellation EPROM error
Only in the testing phase you can see if the EEPROM doesn’t operates correctly. Is necessary to contact the manufacturer.
Pressing the
button the visual alarm can temporarily be cancelled, and the readings can be shown to verify the causes
of the alarms.
5 – MEASUREMENTS FUNCTIONS:
a) If the load are inductive IND or capacitive CAP.
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On Cos value indication, if the decimal point on last digit (from left) is flashing, this is because the system working as
Generator or the sense of current is inverted (verify correct CT connection or modify parameter .).
b) Press
button to scroll on available measurements indicated by the related LED.
c) If a k is on the value must be multiplied x1000, instead If a M is on the value must be multiplied x1000000.
d) Press
both buttons to scroll measure automatically every 3s, press
button for stop scroll.
e) While viewing one of these measures: V – A – Cos – W – VAr – VA – %THDV – %THDI if press
button for 1s, all
displays and shows the average value measured.
f) While viewing one of these measures: V – A – %THDV – %THDI – TEMP if press
both buttons for 1s, flashes
the relative Led and display shows the maximum value measured.
g) While select Wh measure, the display shows the value for each Phases if . set in Three-Phase mode or one Phase if
. set in Single-Phase mode, press
it shows the total Wh for 5s.
Press
both buttons for 15s to reset all Wh values.
h) While select VArh measure, the display shows the value for each Phases if . set in Three-Phase mode or one Phase
if . set in Single-Phase mode, press
it shows the total VArh for 5s.
Press
both buttons for 15s to reset all VArh values.
i) Only if . set in Three-Phase mode, while select V measure, the display shows the value for each Phase, press
it shows the phase voltages.
Press for more than 5s
to switch from to and set this as default measure value and vice versa.
l) While select TEMP measure, the display shows the current working temperature, press and hold
it shows the total
device worked hours.
5.1 MEASURE DETAILS:
Measuring Type:
Cos (L/L) Voltage (N/Lx) Voltage (L/L)
VA VA
Current (CT)
A
Active Power (Lx)
W
Reactive Power (Lx) VAr
Apparent Power (Lx) VA
THD of Volt or Current %
Work Hours
H
Ambient Temperature °C
True RMS 0.00 to 1.00 ±1% 100 to 280 ±1% 180 to 490 ±1% 0.05 to 5.5 ±0.5%
Class 1 Class 1 Class 1
0 to 255 0 to 9999 (with multiplier)
0/+60°C (or °F)
MAX VALUE:
The data recording happens every 2 seconds, then after 32 seconds, the micro calculates the average of the 16 different recording and, if above the stored max value, this goes to overwrite it and becomes effectively the new max value. This is to avoid that a single abnormal pike can false the real situation recording an extraordinary and occasional max value. For the max Temperature the data is related to the single reading not to the average.
AVERAGE VALUE:
The data capture occurs every 2 seconds, for example if
.=10 the average value is calculated on 20 seconds.
After power on, during the first 15 minutes, the recording of the max values is disabled.
6 – TECHNICAL DATA:
Supply Circuit 144×144
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9 Modules
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Supply Voltage Operating Limits Rated Frequency Power Consumption L/N – 230V Immunity time for Microbreakings Measurement/Overvoltage Category
3x400V +N
230V L/N
-10% … +10% Ue
50 or 60Hz
4 VA
< 50ms
Class II
Current Input Rated Current Operating Limits Overload Capacity Overload Peak Measurement/Overvoltage Category
5A 0.050 … 5.5A
1.1Ie 10Ie for 500mS
Class II
Voltage Reading Limits
Reading and Control Range 195…460 V
2 … 480 V
Current Reading Limits
0.050….5A
Type of Current and Voltage Readings
TRMS
FFT – Harmonic Spectrum
THD% – 64st
Relay Outputs
Number of Outputs
3
Contact Arrangement Contacts Capacity
1NO 8A 250V (AC1)
Maximum Capacity the Common Contacts 8A (C1) – 10A (C2)
8A
Insulating Category/Rated Voltage VDE0110 Maximum Switching Voltage Electrical Contact Life Mechanical Contact Life
C/250 – B/400 250V
20 x 1006 ops 100 x 103 ops
Enclosure and Connections
Cable Type for connection
Only 90°C – 1.5/2.5mm2 – 16/14 AWG
Working Temperature
-20 / +60 °C
Storage temperature
-30 / +70 °C
Operating Altitude
Up to 2000m
Pollution Degree
2
Electrical Insulation Mains/Contact
4 kV
Protection Degree
IP41 Front – IP20 Terminals
Relative Humidity w/o Condensation
95 RH%
144×144
9 Modules
Enclosure Version
Flush Mount
DIN Rail
Dimensions
149 x 149 x 60mm 157 x 89 x 60mm
Weight
650g
480g
TTL Communication Protocol Connector Type
Serial Interface Standard
Proprietary / MODBUS RTU RJ11
EC Directives: – 2006/95/EC – Low Voltage – 2004/108/EC – EMC
Norms Compliance: CE marking
– IEC EN 55022
– IEC EN 61000-4-2
– IEC EN 61000-4-6 – IEC EN 61000-4-11
– IEC EN 61010-2-030
– IEC EN 61000-4-3 – IEC EN 61000-6-2
– IEC EN 61000-4-4 – IEC EN 61000-6-4
– IEC EN 61000-4-5 – IEC EN 61010-1
7 – TERMINAL CONNECTIONS:
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8 – DIMENSIONS: 144×144 – MODEL
FRONT VIEW 9 MODULE – MODEL
SIDE VIEW
PANEL HOLE
FRONT VIEW
SIDE VIEW
CLEANING OF THE UNIT:
If necessary clean the device with a soft cloth dampened with water. This operation must be done with the instrument switched off and disconnected from any power source.
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