Enelion ENERGY GUARD 3.O User guide

INSTRUCTION FOR INSTALLATION AND
OPERATION
ENERGY
GUARD 3.O

Congratulations on purchasing an ENELION product, and thank you for
your trust.
The current version of the installation and operation instructions
is available at: https://enelion.com/en/support-energy-guard
Before undertaking any activities related to installation or startup, it is
necessary to familiarize yourself with the content of this instruction.
Dear
user

Table of content
Important informations 5
General informations 6
Design Guidelines for
Installation 8
Electrical Connection Recommendation 8
Location Selection Criteria 8
installation 12
Device Installation 13
Conguration 15
Initial Setup 15
Conguration Panel 16
Dashboard 16
Meter Conguration 16
Conguring DLB in the Charging Station 17
Connecting ENELION ENERGY GUARD to the ENELION
Charging Network 18
System Section 19
Dynamic Load Balancing 20
Impact of ENELION ENERGY GUARD on DLB Operation 20
DLB System 20
EEG operating speed 21
Queuing 22

Daily Operation 23
Connection Mode Change Button 23
LED 24
Maintenance 25
Technical data 26
Table of content

5
Important
information
• Installation and servicing of the device must
be performed by qualied and authorized
persons, and repairs may only be carried out
by the manufacturer or entities authorized by
the manufacturer.
• Tampering with the mechanical, electrical
and electronic components and the device
software is forbidden and shall result in the
nullication of the warranty. The exceptions
include operations described herein and those
agreed in writing with the manufacturer.
• The manufacturer is not responsible for
damage to property resulting from the
forbidden interference in the product.
• The electrical installation to be used by the
device during its operation must meet the
conditions described in the installation manual.
The manufacturer is not responsible for
incorrect assembly and/or protection of the
electrical installation to which the device is
connected.
• The manufacturer is not responsible for the
malfunction of the electrical installation to
which the device is connected.
• The electrical installation to be used by the
device during its operation must comply with
the legal standards in force in the place of
assembly and the operation of the device.
• The manufacturer is not liable for any damage
caused by an electrical installation that does
not meet legal standards.
• The device does not have a built-in switch.
• The device activates when the supply voltage
is applied. The power supply cut off function
must be provided by the appropriate electrical
installation devices described in the assembly
manual. Except in emergencies, the device
must not be turned off during the charging
process.
• It is forbidden to supply the power to the
device when the device casing remains open.
• The manufacturer is not responsible for loss
of health or life by any persons resulting from
failure to comply with the above-mentioned
recommendations.
• The AC charger station to which the Energy
Guard will be connected, must be updated to
the latest software version and DLB function
activation it is required, which is described in
this manual.
General provisions:
Safety instructions
• All operations described in this manual should
be performed only after making sure that there
is no voltage in the power cord.
• Outdoor installation should not be carried out
during precipitation or strong wind, if there is a
risk of water or dirt getting into the device.

6
General
informations
ENELION ENERGY GUARD 3.0 (EEG 3.0) is
an intelligent energy meter that connects to
the ENELION LUMINA charger to optimize
the utilization of available electrical power in a
home. ENELION ENERGY GUARD measures
real-time power consumption at the electrical
connection point and sends measurement re-
sults to the ENELION LUMINA charger, allowing
the charger to limit its charging power to avoid
exceeding the maximum power supplied by the
connection. Current measurement is per-
formed using current transformers, signicantly
simplifying the installation.
Fig. 1: Example of installing ENELION
ENERGY GUARD 3.0 in the network

7
Example of installing ENELION ENERGY
GUARD 3.0 in the network: ENELION ENERGY
GUARD 3.0 communicates wirelessly with ENE-
LION LUMINA chargers using Wi-Fi Mesh. The
connection conguration is described in the
‘Connecting ENELION ENERGY GUARD to the
ENELION charger network’ chapter on page 18.
Normally, ENELION ENERGY GUARD comes
with a set of current transformers selected at
the time of ordering. One current transformer
is allocated for each phase. Using current trans-
formers with different parameters will result in
incorrect measurements.
Current transformers are available in various
measuring ranges, from 50 A to even 3000 A.
Current transformers with a maximum input
current of 100 A and 300 A have a hole diame-
ter of 26 mm, while those with 500 A or 1000 A
have a diameter of 36 mm.
General information
Fig. 2: Sample current transformer
It is possible to order only the EEG 3.0
from Enelion and purchase the appropriate
current transformers separately. When
purchasing current transformers individually,
the following requirements must be met:
• Secondary current: 5 A,
• Accuracy class no worse than 1.
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8
Design
guidelines for
installation
Electrical
Connection
Recommendation
01
ENELION ENERGY GUARD 3.0 is designed for
supplying power in both ve or three-wire con-
gurations (excluding the protective PE wire)
and is compatible with TN-S, TN-C, TN-C-S,
and TT network types.
The ENELION ENERGY GUARD device
can operate in either a 3-phase or 1-phase
setup. This manual is based on the three-
phase version. All connections should be
made considering the number of phases.
02 Location
Selection
Criteria
The device is designed for installation inside a
distribution board, near the power cables where
measurement transformers should be applied.
Installation of the device in easily accessible
locations is prohibited
!

9
The device should not be placed in areas of
direct sunlight that could cause overheating of
the device.
Do not install the device near heat sources or in
locations exposed to high humidity.
Installation of the device in explosion hazard
zones is prohibited. Before installation, ensure
that the mounting space inside the distribution
board for the device is sufcient.
Design guidelines for installation
There is the option to choose the installation
location for the measurement transformers.
They can be installed on the power cables
supplying the building’s load along with the
charging stations [Figure 3] or on the power
cables supplying only the building’s load
[Figure 4].
i
Selection of the measuring point – the location
of current transformers installation. Current
transformers can be installed in the distribution
board in two ways.
The rst method is to install them on the main
incoming power cables to the distribution
board. As a result, EEG will measure the current
for the entire connection [Figure 3].
The second option is to install them on the pow-
er cables supplying other loads (excluding the
ENELION LUMINA charging station) [Figure 4].
This information is crucial when conguring
DLB in the charging station. More information
about DLB conguration can be found in the
‚Conguring DLB in the Charging Station’
chapter on page 17.
The manufacturer is not responsible for
damages resulting from non-compliance
with the above recommendations.
!

10
Fig. 3: Connection diagram of EEG for measuring the entire connection along with charging
terminals.
Design guidelines for installation

11
Fig. 4: Connection diagram of EEG for measuring the load excluding the charging terminals.
Design guidelines for installation

12
Installation
Fig. 5: Connection diagram for the
3-phase variant of ENELION ENERGY
GUARD.
Before starting the installation, you must
disconnect the power in the supply cables.
!
In the case of the single-phase version,
only one current transformer should be
connected along with its corresponding
voltage circuit.
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13
Installation
Device
Installation
01
ENELION ENERGY GUARD along with the
power supply is intended to be mounted on a
DIN rail (TS35) inside a distribution board. The
devices occupy a width of 4.5 modules, which
is 8.1 cm. The 230 V AC / 12 V DC power supply
and EEG 3.0 should be powered according to
the diagram provided in the ‘Location Selec-
tion Criteria’ chapter on page 8.
The current transformers should be applied to
the wires of all three phases in the order marked
in Figure 5.
To apply the current transformers to the wires,
disconnect the supply wires of the distribution
board and insert them through the transformer
from the side marked with an arrow.
The transformers must be connected to EEG
with appropriately short cables. The maxi-
mum allowable cable length depends on the
cross-section of the power cables. Information
about allowable cable connection lengths is
provided in the table below.
Voltage circuits (power supply) for EEG are
connected following the sequence marked on
the diagram [Figure 6]. The device does not
require additional electrical protection. The
wires on the distribution board side should
be connected to the terminals of the device
located before the branching of circuits in the
distribution board (e.g., a meter or the main
protection in the form of a circuit breaker).
We suggest using stranded wires with a core
cross-section of 0.5 mm².
Cross-Section of
Conductor [mm2]
Maximum Distance [m]
0,5 0,25
10,5
1,5 0,75
2,5 1,25
Ensure a reliable and stable voltage source.
Connecting the voltage circuits of EEG
to a point that serves as a branch of the
installation may result in a loss of power
source if the branch is disconnected, for
example, by triggering its protection.
!
The red arrows indicate the direction of
current ow. Incorrect order or improper
installation of the current transformers will
prevent EEG from functioning correctly.
!

14
Installation
Fig. 6: Example of connecting voltage circuits to a selected device in the distribution board.

15
Conguration Initial Setup
01
The device is not pre-congured to con-
nect to any network by default, so it will start
broadcasting its (unsecured) hotspot named
ENELION-EG-<serial number>..
Fig. 7: EEG 3.0 LED Interface
In hotspot broadcast mode, the Connection
LED will blink blue.
You can identify a successful connection to
the device’s hotspot when the Connection
LED shines continuously with a blue light.
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16
02.1 Dashboard
Conguration
Conguration
Panel
02
To congure ENELION ENERGY GUARD, you
should use the conguration panel, similar to
the one available in the ENELION LUMINA char-
ger. After connecting to the ENELION ENERGY
GUARD hotspot, open a web browser and go to
192.168.8.8.
The main page of the conguration panel
displays basic information about the device’s
operation, such as voltage and current readings
for each of the measured phases, uptime, and
software version number.
Fig. 8: View of the Dashboard section
in the EEG 3.0 conguration panel
Fig. 9: View of the Meter section in the
EEG 3.0 conguration panel
02.2 Meter
Conguration
In the Meter section, you can view the mea-
surement results performed by the meter, in-
cluding voltage and current for each phase, and
set the CT (current transformers) value. If you
purchased the transformers from ENELION, set
the value according to the ordered transform-
ers. If you purchased transformers separately,
you can nd information about the CT value in
the product’s datasheet.
The ENELION ENERGY GUARD
conguration panel is also designed for use
on a smartphone screen.
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17
Fig. 10: Setting the current
transformer values in the conguration
panel
02.3 Conguring
DLB in the
Charging
Station
In the DLB section, you should set the current
limit that household devices, along with chargers,
cannot exceed You should also set the measuring
point for ENELION ENERGY GUARD depending
on the placement of the current transformers
Conguration
in the network. In the „Metering point” section,
choose one of the two options:
1. “All power equipment,” which measures
the entire connection, including charging
stations [Figure 3]..
2. „Power equipment without charging
network,” which measures the connection
excluding the charging stations [Figure 4].
Fig. 11: View of DLB in the
conguration panel..
Information about connection options along
with diagrams can be found in the ‘Design
guidelines for installation’ chapter on page 8.
i
Incorrect conguration may result in
improper operation of the Dynamic Load
Balancing function
!
Setting the correct value for the current
transformers is necessary for ENELION
ENERGY GUARD to measure current
accurately.
!
To set the current transformer values, click on
the pencil icon on the right side of the Settings
section.

18
02.4 Connecting
ENELION
ENERGY GUARD
to the ENELION
Charging
Network
ENELION ENERGY GUARD connects wirelessly
to ENELION chargers.
To congure the connection between EEG
and the rest of the charging network, use the
Charging network section. Just like in LUMINA,
you need to provide the Mesh ID and Mesh
password used by the charging network you
want to connect the device to. ENELION ENER-
GY GUARD always operates in Node mode, so
there is no option to set Root/Node mode here.
Fig. 12: Mesh connection conguration
in the conguration panel
Conguration
To save the Mesh network conguration, use
the pencil icon and enter the correct informa-
tion in the settings window. After entering the
network name and password, click the connec-
tion icon next to the pencil icon to connect to
the network. Since ENELION ENERGY GUARD
can only operate in Hotspot or Mesh mode (it
cannot operate in both modes simultaneously),
attempting to connect to the Mesh network will
disable the Hotspot and disconnect from the
device.
Successful network connection can be veried
by observing the LED indicators on the device:
• When attempting to connect, the
Connection LED will blink green.
• When ENELION ENERGY GUARD
successfully connects to the network, the
LED will shine steadily green.
• An unsuccessful connection (e.g., incorrect
connection data or no coverage) will be
indicated by the Connection LED blinking
red.
Returning to Hotspot mode and re-entering
the conguration panel is possible by using
the physical button on the front panel of
EEG. Detailed instructions are described in
the ‘Daily Operation’ chapter on page 23.
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19
Fig. 13: Connection status indication
for EEG in the Mesh network using the
Connection LED
02.5 System
Section
The System section allows you to view device
information such as the serial number, model,
production date, uptime, and software version
number. In this section, you can also update the
EEG software using the appropriate update le
or perform a device restart.
Conguration
Connecting Active connection Connection lost

20
Dynamic Load
Balancing
DLB System
01
Dynamic Load Balancing is an intelligent load
management system used during EV charging.
It allows for the distribution of the total available
power of the connection in a way that keeps
energy consumption below a specied/safe
level. It helps prevent overloads of the charging
station operator’s network, thus avoiding
additional charges from the electricity provider.
DLB also allows for the utilization of poten-
tially available power, which is accessible even
after disconnecting any car from the charging
station.
Impact of
ENELION
ENERGY GUARD
on DLB Operation
02
Connecting ENELION ENERGY GUARD to
the charging station network extends DLB
functionality to include other electrical devices
besides charging terminals in power distribu-
tion. From this point forward, the connection
limit will determine the total power allocated
to the building, including charging terminals.
Charging stations will adjust the charging power
of vehicles in proportion to the other electrical
devices, ensuring that the current limit of the
connection is not exceeded.