Iskra IE14-S User manual

User’s Manual
1
Series of single phase meters IMPACT-
IE14:
IE14-S
IE14MS
IE14MN
IE14MM
IE14MD
IE14MDC
September 2020 • Version 1.09

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User’s Manual
Single-phase electrical energy meter
IMPACT-IE14
User’s and Installation manual

User’s Manual
iii
Security Advices and Warnings
Please read this chapter carefully and examine the equipment carefully for potential damages that might
arise during transport and to become familiar with it before continuing to install, energize ,and work with
a single-phase energy meter IE14.
This chapter deals with important information and warnings that should be considered for safe installation
and handling with a device to assure its correct use and continuous operation.
Everyone using the product should become familiar with the contents of chapter the »Security Advices
and Warnings«.
If the equipment is used in a manner not specified by the manufacturer, the protection provided by the
equipment may be impaired.
PLEASE NOTE
This booklet contains instructions for the installation and use of single-phase energy meter IE14.
Installation and use of a device also include handling dangerous currents and voltages,
therefore, should be installed, operated, serviced ,and maintained by qualified personnel only.
ISKRA Company assumes no responsibility in connection with the installation and use of the
product. If there is any doubt regarding the installation and use of the system in which the
device is used for measuring or supervision, please contact a person who is responsible for the
installation of such a system.
Before installing
Check the following before installing the device:
Nominal voltage.
Terminals integrity.
Protection fuse for voltage inputs (recommended maximal external fuse size is 40 A).
External switch or circuit breaker must be included in the installation for disconnection of the
devices’ power supply. It must be suitably located and properly marked for reliable
disconnection of the device when needed.
Proper connection and voltage level of I/O module.

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User’s Manual
Used symbols on devices’ housing
and labels
SYMBOL
EXPLANATION
Single phase connection.
Double insulation in compliance with the EN 61010−1: 2010 standard.
WARNING
Indicates situations where careful reading of this manual is required and
following requested steps to avoid potential injury is advised.
NFC communication.
Modbus communication.
Compliance of the product with directive 2002/96/EC, as first priority, the
prevention of waste electrical and electronic equipment (WEEE), and in addition,
the reuse, recycling and other forms of recovery of such wastes so as to reduce
the disposal of waste. It also seeks to improve the environmental performance of
all operators involved in the life cycle of electrical and electronic equipment.
Compliance of the product with European CE directives.
Disposal
It is strongly recommended that electrical and electronic equipment (WEEE) is not deposited as
municipal waste. The manufacturer or provider shall take waste electrical and electronic equipment
free of charge. The complete procedure after a lifetime should comply with the Directive 2002/96/EC
about the restriction on the use of certain hazardous substances in electrical and electronic
equipment.

BASIC DESCRIPTION AND OPERATION
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Table of contents
1BASIC DESCRIPTION AND OPERATION 1
1.1 DESCRIPTION OF THE DEVICE 2
1.2 SINGLE-PHASE ENERGY METERS APPLICATION 3
1.3 MAIN FEATURES 3
1.4 TYPES OF IMPACT-IE14 ENERGY METERS 5
2CONNECTION 6
2.1MOUNTING 7
2.2 ELECTRICAL CONNECTION 7
3FIRST STEPS 11
3.1 DISPLAY OF DEVICE INFO 12
3.2 LCD USER INTERFACE 13
3.3 FREEZE COUNTERS 21
4SETTINGS 24
4.1 INTRODUCTION 25
4.2 MIQEN SOFTWARE 25
4.3 DEVICES MANAGEMENT 26
4.4 DEVICE SETTINGS 27
4.5 REAL-TIME MEASUREMENTS 41
4.6 DATA ANALYSIS 44
4.7 MY DEVICES 44
4.8 SOFTWARE UPGRADING 44
4.9 NFC SETTINGS 46
5MEASUREMENTS 47
5.1 INTRODUCTION 48
5.2 SELECTION OF AVAILABLE QUANTITIES 49
5.3 CALCULATION AND DISPLAY OF MEASUREMENTS 50
6DIGITAL SIGNATURE (VALID ONLY FOR IE14MDC) 52
6.1 INTRODUCTION 53
6.2 DIGITAL SIGNING PROCEDURE 53
6.3 ENERGY METER CRYPTOGRAPHIC FUNCTIONS EXPLANATION 54
6.4 CONSUMPTION MEASURING AND DIGITAL SIGNING PROCEDURE 55
6.5 CRYPTO REGISTER DEFINITIONS 55
6.6 POWER LOSS BEHAVIOUR 64
6.7 UNEXPECTED RESET BEHAVIOUR 64
7TECHNICAL DATA 65

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7.1 ACCURACY 66
7.2 MECHANICAL CHARACTERISTICS OF INPUT 66
7.3 ELECTRICAL CHARACTERISTICS OF INPUT 67
7.4 SAFETY AND AMBIENT CONDITIONS 69
7.5 EU DIRECTIVES CONFORMITY 70
7.6 DIMENSIONS 70
8ABBREVIATION/GLOSSARY 71
9APPENDICES 72
9.1 ADVANCED ENCRYPTION STANDARD 72
9.2 APPENDIX A: MODBUS COMMUNICATION PROTOCOL 72
9.3 APPENDIX B: M-BUS 74
9.4 APPENDIX C: OBIS CODE 76
9.5 APPENDIX D: EQUATIONS 77

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1BASIC DESCRIPTION AND OPERATION
The following chapter presents basic information about a IE14 single-phase energy meter required to
understand its purpose, applicability, and basic features connected to its operation.
In this chapter, you will find:
1.1 Description of the device 2
1.2 Appearance 2
1.3 Single-phase energy meters application 3
1.4 Main features 3
1.5 Types of IMPACT-IE14 energy meters 5

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User’s Manual
1.1 Description of the device
The IE14 single-phase energy meters are intended for energy measurements in single-phase electrical
power networks and can be used in residential, industrial, and utility applications. Meters measure
energy directly in 2-wire networks according to the principle of fast sampling of voltage and current
signals. They are equipped with a capacitive touch button that allows the user to scroll measurements
and the menu, make settings, etc. and backlight for better visibility. A built-in microprocessor
calculates active/reactive/apparent power and energy, current, voltage, frequency, power factor,
power angle, and frequency from the measured signals. This smart meter can also perform basic
harmonic analysis (THDU, THDI). This enables a quick overview of harmonic distortion either coming
from a network or generated by the load.
The microprocessor also controls LCD, LED, IR communication, and optional extensions.
Connecting terminals can be sealed up against non-authorised access with protection covers. They are
built to be fastened according to EN 60715 standard.
1.1.1 Appearance
Figure 1: Appearance of the IE14 single-phase electric energy meter
Figure 1: Appearance of the IE14MN energy meter.
1Current terminals –to load
2Information display
3IR communication port –on
side
4DIN-Rail fitting
5Capacity touch
6LED indicator
7Current terminal –source
8NFC
9AUX terminals (options):
RS485
M-Bus
S0+/-
*see figures 4, 5, 6
LCD
Number of digits: 7
Height of digits: 5.5 mm
LED
Colour: red
Pulse rate: 1000 imp/Wh or
1 imp/varh
LED on: no load indication

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1.2 Single-phase energy meters application
Energy meters can be equipped with an optical (IR) communication port on the side as a standard. A
special USB adapter (size 1 DIN module) can easily be attached to it. It can be used for direct
communication with a PC to change settings of the device without any communication installed.
Meter has an optional built-in optical (IR) communication port on the side. It can be used for
controlling Bistable switch –BICOM or in combination with SG smart gateway (more info about BICOM
and SG can be found on https://www.iskra.eu/.
Meter can be equipped:
S0 output (pulse output) is intended for connection to the devices that are checking and
monitoring consumed energy.
RS485(Modbus) serial communication with the Modbus protocol. Data is available in different
formats prepared for easier integration into third party control and monitoring systems.
M-Bus serial communication, which enables data transmission and thus the connection of the
measuring places into the network for the control and management with energy.
NFC communication for easy setting and downloading meter data via a mobile app.
Communication modules enable data transmission and thus the connection of the measuring places
into the network for the control and management with energy.
On the housing there are only two terminals, thus only one functional extension is possible (serial
communication, M-Bus).
NFC communication is implemented for parametrization as well as for reading data (e.g. counters,
measurements, etc) from the smart meter. Special application available from our internet site has to
be used to perform such operations.
Special version IE14MDC with RS485 communication is equipped with a crypto chip and can produce a
relevant digital signature in applications that require additional data security.
1.3 Main features
Single-phase direct connected DIN-rail mounting meters.
Active energy class B for MID approved types according to EN 62053-21 and class 1 for other
types (non-MID version) according to EN 50470-3.
Reactive energy Class 2 according to EN 62053-23.
Bidirectional energy measurement (import/export).
Basic current 5 A (Ib).
Maximum current 40 A (Imax).
230 V rated system voltage input (Un).
Voltage operating range (-20%...+15%) Un.
Reference frequencies 50 Hz and 60 Hz (MID certified).
Power consumption voltage circuit 10 VA at Un.
Power consumption current circuit 0.1 VA at Ib.
Temperature range climatic condition as indoor meter (-25 °C…+55 °C) according EN 62052-
11.
Custom LCD display with 7 digits (100 Wh resolution)
Multifunctional front red LED.
LED constant 1 imp/Wh or 1 imp/varh.
IR(Modbus) serial communication (optional).
Capacitive touch button for setting and control (optional).
Backlight for better visibility (optional).
Special functions added for easier integration into monitoring and control systems.
Measurement of
opower (active/reactive/apparent),
oenergy (active/reactive/apparent),

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ovoltage,
ocurrent,
ofrequency,
opower factor,
opower angle,
oactive tariff (option),
oTHD of voltage,
oTHD of current.
Pulse output according to EN 62053-31 (option).
RS485 (Modbus) Serial communication (option).
M-Bus Serial communication (option).
NFC communication for easy setting and downloading meter data via mobile app.
Tariff management (up to 4 tariffs manageable via communication –option).
DIN-rail mounting according to EN 60715.
Secure data transfer (digital signature) (only for IE14MDC)
70°C ambient operation temperature (for IE14MD and IE14MDC; optional temperature
range also -25 °C - +55 °C)
Sealable terminal cover.
1 DIN module width.

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1.4 Types of IMPACT-IE14 energy meters
022433925000
IE14-S
Single phase energy meter 40 A, S0, without capacitive touch button
022433925100
IE14MS
Single phase energy meter 40 A, S0, MID
022433925200
IE14MN
Single phase energy meter 40 A, S0, IR, NFC, MID
022433925300
IE14MM
Single phase energy meter 40 A, M-Bus, IR, NFC, MID
022433925400
IE14MD
Single phase energy meter 40 A, RS485 MODBUS, IR, NFC, 55°C range, 70°C range, MID
022433925500
IE14MDC
Single phase energy meter 40 A, RS485 MODBUS, IR, NFC, 55°C range, 70°C range, Crypto chip,
MID
Table 1: Types of the IE14 energy meters.

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User’s Manual
2CONNECTION
This chapter deals with the instructions for the IE14 single-phase electrical energy meter connection.
Both the use and connection of the device include handling dangerous currents and voltages. The
connection shall therefore be performed ONLY by a qualified person using appropriate equipment.
ISKRA, d.o.o. does not take any responsibility regarding the use and connection. If any doubt occurs
regarding connection and uses in the system which device is intended for, please contact a person
who is responsible for such installations.
In this chapter you will find:
2.1 Mounting 7
2.2 Electrical connection 7

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2.1 Mounting
The IE14 single-phase electrical energy meter is intended only for DIN-rail mounting. In the case of
using the stranded wire, the ferrule must be attached before the mounting. The ferrule contact length
should be 12 mm.
2.2 Electrical connection
WARNING
Wrong or incomplete connection of voltage or other terminals can cause non-operation or
damage to the device.
To prevent electrical shock and/or equipment damage, disconnect electrical power at the main
fuse or circuit breaker before installation or any servicing.
Make sure, that no voltage is present in the installation.
Prevent the disconnecting device from being switched on accidentally.
Connect the module according to electrical diagram.
WARNING
Security seal must be from plastic material.
Meter is used for direct connection into the two-wire networks. Meter can be equipped with different
modules. The pictures below are showing equipped combinations.
Recommended installation:
1Mounting to DIN rail according to DIN EN60715
2Power contacts:
a. Power contacts capacity:
Flexible (Rigid) 1.5 mm2 –10* mm2(*Ferrule contact length should be 12 mm.
Wire stripped to 14 mm.)
b. Connection screws M3.5
c. Max torque 0.8 Nm
3Auxiliary terminals:
a. Auxiliary terminals contact capacity
Flexible (Rigid) 0.05 mm2–1 (2.5) mm2
b. Auxiliary terminals screws M3
c. Max torque 0.6 Nm

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Figure 2: Electrical diagram 230 VAC
Mark
Meaning
LI
Line input
NI
Neutral input
LO
Line output
NO
Neutral output
Table 2: Marks of inputs and outputs.

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Figure 3: Connection diagram for pulse output
Figure 4: Connection diagram for M-Bus option
Figure 5: Connection diagram for RS485 communication
2.2.1 Communication connection
There are multiple options for communication available for interaction with the outside world:
IR communication module (option) using the MODBUS. It can be used for setting and
testing the meter using a USB adapter.
The pulse output (option) module is used for counting the number of pulses depending on
consumed energy.
LED is used for indication of no-load condition (I < 0,02A) and test output proportional to
measured active energy (1 imp/Wh). It can be also switched to reactive energy for test
purposes using communication.
RS485(Modbus) (option) communication module is a galvanic isolated from the meter. It
enables setting the meter and data readout in the network.
M-Bus (option) communication module is a galvanic isolated from the meter. It enables
setting the bound rate and the address of the meter (for more information see appendix
8.2).
NFC (option) enables an easy setting and downloading meter data via a mobile app.
Capacity touch is used to select a display of desired measured or group of them.

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Auxiliary terminal
1
2
3
Pulse output
M-Bus
RS485
S0+
M+
A
*SC
S0-
M-
B
*It is intended to be used for shielding for RS485.
Table 3: Survey of communication connection
PLEASE NOTE
Check connection diagram on the side of the meter to check what modules are built in.

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3FIRST STEPS
Programming an IE14 single phase energy meter is very transparent and user friendly. Numerous
settings are organized in groups according to their functionality.
In this chapter, you will find basic programming steps:
3.1 Display of device info 12
3.2 LCD User Interface 13
3.3 Freeze counters 21

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3.1 Display of device info
Measured data is presented on LCD. Display scrolls automatically. Displayed quantities and scroll time
can be set via communication by MiQen software, or via mobile app using NFC.
Energy meters have LCD display with the following layout:
1Actual Value
2Non resettable (MID) energy register. This sign
indicates which energy counter permanently
counts (it can not be reset to zero or any other
value)
3(→) Energy power import
(←) Energy power export
4The sign indicates the specified counter is
currently active (real-time data)
5Unit of measurement
Figure 6: Layout of LCD
Energy registers are displayed with resolution 6 + 1 (kWh, kvarh and kVAh).
PLEASE NOTE
The meter can be set to Test measuring mode which displays energy registers with better
resolution. The test mode is used for test purposes during type testing and test of meter
constant during initial verification. After power off meter automatically goes back to normal
operation.
3.1.1 Welcome screens
Segment check:
Software version:
Check sum:
At power on the software version and check sum of MID approved measuring part of software is
displayed.
.

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3.2 LCD User Interface
After the electrical connection, the display shows a segment check screen, software version screen,
and check sum screen in a period of five seconds. The following is automatic cycling of measurements
which consists of energy counters and actual measured values. The period is defined in settings. The
cycling period and required measurement could be set via capacity touch, MiQen software, or mobile
app using NFC.
Regarding the period that is defined in settings, measurement screen cycling is started until any key is
pressed.
Besides the cycling of measurements, one can enter the display menu structure by using a long touch.
If the capacity touch is not pressed for more than 1 minute, the cycling of measurements
automatically begins again. The hold page function is a function that locks a measurement screen.
Therefore, even if the menu structure is entered and left for more than 1 minute, that specific
measurement screen will be shown. This is also in case of a power-down.
The measured values can be scrolled automatically or can be selected by pressing the button. The LCD
display has three types of actions:
-short touch (up to 1s ): for scrolling through the menu or measured values.
-long touch (1-4s): after 1 second, the display starts blinking and after a touch release it
enters the first level of the menu structure. Long touch is used also for every further sub-
menu option or action confirmation,
-extra long touch (5s): if the touch is not released in 5 seconds, LCD returns in the initial
cycling mode
The LCD display allows displaying the following measurement values:
1Energy registers. Two different types (resettable and non-resettable). The resettable energy
counter can be reset and the parameters can be modified, while the non-resettable has
been measuring the quantity continuously. The energy counter you reset starts to re-
measure the value from the zero value.
I. Non resettable energy counters
i. Energy counter E1
ii. Energy counter E2
iii. Energy counter E3
iv. Energy counter E4
II. Resettable energy counters
i. Energy counter C1
ii. Energy counter C2
iii. Energy counter C3
iv. Energy counter C4
v. Energy counter C5
vi. Energy counter C6
vii. Energy counter C7
viii. Energy counter C8
2Actual measured values
I. Active Power
II. Reactive Power
III. Apparent Power
IV. Voltage
V. Current
VI. Frequency
VII. Active Tariff
VIII. Power Factor
IX. Power Angle
X. THD of voltage
XI. THD of current

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3.2.1 Capacity touch selfcalibration process
In a reported fixed 64s interval the average, minimum, and maximum value of the capacity touch
sensor is calculated. If the conditions are stable (without interruptions) then the average value of the
capacity touch sensor is used as a reference value. If the new reference value deviates sufficiently
from the permanently stored value, it is permanently saved. Permanently stored value is used when
the power is turned on.
3.2.2 Energy counters
There are two sets of energy registers –four non-resettable registers that can be assigned for active
energy (MID approved), reactive energy (national approval), or apparent energy (no approval). The
meter with MID approval should have at least one register with active energy measurement. There are
additional 8 energy registers that can be parameterised by the user regarding type of energy, active
quadrants, the direction of counting, and tariff and they can also be reset using MODBUS command or
capacity touch.
The indication of four non-resettable registers on the LCD is driven directly from the measuring part of
SW.
On the LCD each energy counter is displayed with two screens. On the first screen, there is the
counter designation and additional code. For the code, the user can choose between the OBIS code or
letter description code. On the second screen there is the 7-digit numerical number which shows the
value of the energy, the unit, lock sign for the fixed legally relevant non-resettable counters, energy
direction sign, and the sign of currently active register. The decimal dot is fixed and resolution is fixed
to 100 Wh. The first screen is displayed for three seconds and the second screen for the pre-set cyclic
period. In the case of a manual scroll with capacity touch, no additional touch is needed to switch
between these two screens.
Legally relevant non-resettable registers are designated with letters E1 to E4, while legally non-
relevant resettable registers are designated with C1 to C8. The code is specified in Table 1.
Register description E1 to E4
OBIS code
Letter description code
Active energy Q1+Q4 –all tariffs
1.8.0
A.I.0
Active energy Q2+Q3 –all tariffs
2.8.0
A.E.0
Active absolute energy–all tariffs
(Abs(Q1+Q4) + abs(Q2+Q3))
15.8.0
A.A.0
Reactive energy –Q1+Q2 - all tariffs
3.8.0
r.I.0
Reactive energy –Q3+Q4 - all tariffs
4.8.0
r.E.0
Reactive absolute energy–all tariffs
95.8.0 (manufacturer specification)
r.A.0
Apparent absolute energy-all tariffs
9.8.0
S.A.0
Table 4: Register description E1 to E4.
Register description C1 to C8
OBIS code
Letter description code
Active energy Q1+Q4 –all tariffs
1.8.0
A.I.0
Active energy Q1+Q4 –tariff 1 to 4
1.8.1 to 1.8.4
A.I.1 to A.I.4
All energy types –tariff 1 to 4
x.x.1 to x.x.4
x.x.1.to x.x.4
All energy types –mixed tariffs
(example tariff 1 and tariff 2)
x.x.9
x.x
Active energy Q2+Q3 –all tariffs
2.8.0
A.E.0
Active absolute energy–all tariffs
(Abs(Q1+Q4) + abs(Q2+Q3))
15.8.0
A.A.0
Active energy (signed)–all tariffs
16.8.0
A.b.0