FENECON Industrial M — Assembly and Operating Instructions

1. General information

1.1. About these instructions

These installation and service instructions have been prepared in accordance with Directive 2014/35/EU. They enable the safe and efficient handling of the electrical equipment "ESS10 Container" (for the purpose of documentation described as "system").

These installation and service instructions are an integral part of the system and must be kept in its immediate vicinity and accessible to personnel at all times. Furthermore, all documents listed in the appendix to these installation and service instructions and the operating instructions of the component manufacturers must be observed!

Personnel must have carefully read and understood these installation and service instructions before starting any work.

1.2. Manufacturer

FENECON GmbH
Gewerbepark 6
94547 Iggensbach
Germany

Phone +49 (0) 9903 6280 0
Fax +49 (0) 9903 6280 909
E-mail: service@fenecon.de
Website: www.fenecon.de

1.3. Formal information on installation and service instructions

Reprinting, even in part, is only permitted with the permission of FENECON GmbH.

1.4. Version/revision of the installation and service instructions

Table 1. Version/revision
Version/revision	Changes	Date	Name
V0.1	First draft	09/09/2020	CE Design
V0.2	Draft initial creation	03/11/2020	CE Design
V0.3	First draft	03/11/2020	CE Design
V0.4	Publication on docs.fenecon.de	20/03/2025	FENECON PM

1.5. Symbol conventions

Table 2. Symbol conventions
Representation	Meaning
"Highlighting"	Highlighting special terms in the text
[Push-button]	Operating and display element (e. g. push-button, signal light)
>>Button<<	Button and visualization (e. g. push-button, signal light)
→	Reference to sections of these instructions or to applicable documents (→ section Technical data)

Table 3. Symbol conventions — Signal words

This signal word indicates an imminent danger. If this danger is not avoided, it will result in death or serious injury.

This signal word indicates a possible danger. If this danger is not avoided, it can lead to death or serious injury.

This signal word indicates a potentially dangerous situation. If this dangerous situation is not avoided, it may result in minor or moderate injury.

This signal word indicates actions to prevent damage to property. Observing these instructions prevents damage to or destruction of the system.

Supplementary information

1.6. Structure of warning notices

Warning notices protect against possible personal injury and damage to property if observed and classify the magnitude of the danger by means of the signal word.

Warnings are structured according to the SAFE method:

Table 4. SAFE method
Signal word	Meaning
S	Signal word (DANGER, WARNING, CAUTION or NOTICE)
A	Type and source of danger Description of the hazard and the cause of the hazard
F	Consequence Description of the possible consequences for humans, animals and the environment that may result from the hazard
E	Escape Recommendations on how hazards can be avoided

Source of the danger
Possible consequences of non-compliance

Measures for avoidance/prohibitions

1.7. Terms and abbreviations

The following terms and abbreviations are used in the installation and service instructions:

Table 5. Terms and abbreviations
Term/Abbreviation	Meaning
AC	Alternating Current
ADR	Accord européen relatif au transport international des marchandises dangereuses par route (European Agreement concerning the International Carriage of Dangerous Goods by Road)
Battery pack	Battery pack for installation in EVs.
BCS	Battery Control System
BMS	Battery Management System Performs battery capacity adjustment and battery condition calculation (voltage, current, chargeable and dischargeable power, temperature, insulation resistance operation, etc.) based on the data collected by the sensors in the packs. It also performs the balancing between the cells to ensure the optimum energy of the pack. Communication takes place via CAN.
BSMU	Battery Stack Management Unit — Management unit for battery stacks
Connection Box	It connects/disconnects pack low-voltage lines. It consists of main relay, pre-charge relay, current sensor, BMS power supply and CAN network for communication between the high order system and the BMS.
EMS	Energy Management System
ESS	Energy Storage System — Energy storage system
FEMS	FENECON Energy Management System
LR	Alkali-Manganese Batteries
Module	Composition in which 16 cells are connected with 8 in series and 2 in parallel. Each battery pack consists of 12 modules connected in series.
MS	Medium voltage
MSDS	Material Safety Data Sheets
LV	Low Voltage
NSHV	Low Voltage Main Distribution
PCS	Power Conversion System
PV system	Photovoltaic system
RO	Read Only
SDSW	Service Disconnection Switch Enables the connection/disconnection of high-voltage lines in the packing center potential by removing and installing this SW. It has a safety function and can disconnect high-voltage lines on unusual occasions.
WO	Write Only

1.8. Appendix to this document

All documents listed in the appendix to these installation and service instructions must be observed.
See Applicable documents.

1.9. Availability

The operator must keep these installation and service instructions or relevant parts of them within easy reach in the immediate vicinity of the product.

If the product is handed over to another person, the operator passes these installation and service instructions on to that person.

1.10. Scope of delivery

Table 6. Scope of delivery — Standard
Item	Component	Amount	Comment
1	Container incl. climate control unit, lockable	1	with key (1)
2	NSHV incl. circuit breaker	1
3	Control cabinet incl. FEMS and grid and plant protection	1
4	Batteries, BMW; type: SE09, i3	X	High-voltage battery; depending on capacity purchased
5	Inverter REFUstore 88k	1	REFU Elektronik GmbH
or
5	KACO gridsave 92. kVA	1	KACO new energy GmbH
6	Document folder	1	Manual, E-plan

The equipment of the container depends on the ordered variant of the FENECON system.

The software licenses required to operate the system are not included in the scope of delivery. However, various FEMS applications are available for operation and can be installed both subsequently and directly during commissioning.

Scope of delivery — Optional

Aspirating smoke detector

2. Safety

2.1. Intended use

The FENECON Industrial M is an industrial energy storage system consisting of various modules. These include, in particular, efficient inverters, the FENECON energy management system (FEMS) and slide-in battery modules including BMS.

The energy storage system is used to store and supply electrical energy.

The system must only be used in compliance with the permissible technical data (section: Technical data).

2.2. Field of application

The product is intended exclusively for use in the following areas of application:

Industrial sector

Any other use is not in accordance with the intended use.

2.3. Qualification of staff

Qualified personnel must be deployed for the intended use, installation and maintenance of the system. The area of responsibility, competence and supervision of the personnel must be precisely regulated by the operator.

2.3.1. Maintenance personnel

Maintenance personnel include qualified electricians or persons with comparable country-specific training Maintenance personnel are commissioned by the operator to maintain the system and have the following knowledge:

Functionality and maintenance points of the system.
Hazards on the system and suitable protective measures.
Cleaning, preserving, refilling or replacing operating materials (e. g. coolant).
Replacement of wearing parts.
Retrofitting and professional adjustment of the system.

2.3.2. Qualified electricians

Qualified electricians include persons who:

are able to carry out work on electrical systems due to their technical training, experience and knowledge of the relevant standards and regulations.
have been commissioned and trained by the operator to carry out work on electrical systems and equipment of the battery system.
are familiar with how the battery system works.
recognize hazards and prevent them by taking appropriate protective measures.
have access to all maintenance information.

2.3.3. Service staff

Service personnel includes: Manufacturer personnel or specialist personnel instructed and authorized by FENECON GmbH who must be requested by the operator for work on the electrical energy storage system (e. g. assembly, repair, maintenance, work on the batteries, etc.).

2.3.4. Qualified person

A qualified person is a person who has the necessary specialist knowledge to inspect work equipment (e. g. tools, devices, machines or systems) based on professional training, professional experience and recent professional activity. The person is not subject to any professional instructions in their inspection activities and must not be disadvantaged because of these activities.

2.3.5. System operator

The operator must appoint a responsible person/system operator for the electrical energy storage system. This person receives training during commissioning and acts as the primary contact person.

2.4. Safety and protective devices

The safety devices must not be bypassed or switched off.
Operating the electrical energy storage system without or with defective protective devices is prohibited.
The safety equipment must always be kept within easy reach and checked regularly.

2.4.1. Overview

The following safety and protective devices are located on the system:

Table 7. Safety and protective devices on the system
Image	Safety/protective device
	Maintenance protection flap — battery side, lockable Maintenance protection flap — Control cabinet side, lockable
	Emergency-off push-button (red button) on the control cabinet, acknowledgement key (button top left), as well as main switch (bottom) and LAN connection (top right)
	Earth connections on the outer wall of the container (outside)
	Earthing connections inside the NSHV as potential rail
	Lightning protection through the steel shell of the container
	Optional: smoke extraction/fire alarm system

2.4.2. Maintenance door

Two maintenance doors are installed on the system (battery side and control cabinet side), which can be locked using the key supplied with the system. During operation of the system, the maintenance doors are closed and prevent access to the system technology. The maintenance doors can be opened for maintenance and repair work. These open upwards to an angle of 90°. When opened, the maintenance door requires additional space of 1.73 m.

Maintenance door, open, side view

INM maintenance door side view

2.4.3. Emergency-off push-button

In emergency situations, the system can be switched off using the emergency-off push-button. The emergency-off push-button must not be used to switch off the system normally. The system is equipped with one emergency-off push-button.

The emergency-off push-button is located on the control cabinet inside the system.

Once the emergency situation has been rectified, the emergency-off push-button must be unlocked before the system is switched back on.

Pressing the emergency-off push-button
Pressing the emergency-off push-button triggers the following reactions:

12 V supply is switched off.
HV relays in the battery are disconnected.
The HV voltage to the outside to the inverters is switched off.

Unlocking the emergency-off push-button
The emergency-off push-button must be unlocked before switching back on after a tripped emergency stop:

Pulling out the emergency-off push-button

Confirm emergency stop
The emergency stop is confirmed using the emergency-off push-button on the front of the control cabinet.

2.4.4. Earthing connections inside/outside

The earthing connections on the outer container walls are located under the maintenance doors. A potential rail is installed inside the NSHV.

Image 1. Positions — Earthing connection on the container (front/rear view)

2.5. Sheet steel for the discharge of lightning currents

Lightning protection is guaranteed by the container’s continuous material thickness of 4 mm.

2.6. Behavior in case of emergency

Immediate measures after an accident

The system and its surroundings are designed in such a way that accidents can be ruled out according to human judgment if:

all safety devices are active,
all safety regulations are complied with and
all maintenance and servicing work is carried out within the prescribed intervals.

Proceed as follows in emergency situations:

Press the emergency-off push-button.
Leave the zone of danger immediately.
Switch off the main switch with emergency stop function on the control cabinet.
Secure the zone of danger of the system.
Report to the system operator/responsible person.
Call a doctor if necessary.

2.7. Fire protection measures

Fire protection measures for the 10-foot industrial container:

Causes of fire

Spontaneous ignition of flammable materials such as oils, greases, paints and plastics that are exposed to radiant heat.
Welding in the immediate vicinity of flammable materials.
Contaminated smoke extraction systems.
Deposits in the ventilation ducts and on the filters.
Damaged, live cables.
Flammable operating fluids and coolants (increased fire risk).

Preventive measures

Do not store flammable materials in the container.
Only use flame-retardant operating fluids and coolants.
Clean extraction and ventilation systems regularly.
Change dirty filter elements.
Install suitable fire extinguishers in the container.
Train service personnel in firefighting.

Fire fighting

The use of carbon dioxide fire extinguishers is recommended for live components (control cabinets, control panels, etc.).
The battery packs must be sprayed with very large quantities of water until the fire is extinguished.
Keep an appropriate distance due to the possible formation of flames when burning electrolyte solution from the batteries.
Do not lead the fire hose directly into the battery packs.
Fully ventilate the container.

2.8. Pictograms

Pictograms on the system indicate dangers, prohibitions and instructions. Illegible or missing pictograms must be replaced by new ones.

Table 8. Pictograms
Pictogram	Meaning	Position
	Pictogram warning of dangerous voltage	Pictogram on the enclosure, and marking of components which do not clearly indicate that they contain electrical equipment which may be the cause of a risk of electric shock.
	Warning against corrosive substances	On the battery modules
	Before using grounding	In the area of the grounding connections (e. g. on the container)
	Separate collection of electrical and electronic equipment	At the battery modules
	Warning against hand injuries
	Hot surface warning
	General warning sign
	Warning about the dangers of charging batteries
	General prohibition sign
	No open flames; fire, open sources of ignition and smoking prohibited
	No access for persons with pacemakers or implanted defibrillators
	Access prohibited for unauthorized persons
	Please follow instructions
	Use protective headgear
	Use protective footwear
	Use protective gloves

2.9. Components and operating materials

2.9.1. Coolant

The coolant used in the integrated air conditioning unit is R134A.

Further information on the coolant R134A can be found in the corresponding manufacturer’s safety data sheet (appendix, Applicable documents).

2.9.2. Battery electrolytes

Electrolytes are used in the battery packs (lithium-ion polymer batteries).
The electrolyte solution in the batteries is a clear liquid and has a characteristic odor of organic solvents.
The electrolyte is a flammable solution.
The electrolyte in the battery packs is corrosive.
Contact with electrolyte solution can cause severe burns to the skin and damage to the eyes.
Do not inhale the vapors.
In case of ingestion, inhalation, contact with skin or eyes, rinse with plenty of water as soon as possible and contact a poison control center or doctor immediately.

Further information on the electrolyte solution can be found in the manufacturer’s safety data sheet (Appendix, Applicable documents).

2.10. Electrical equipment

Work on electrical equipment may only be carried out by qualified electricians.
The five safety rules must be observed for all work on electrical components:
- Disconnect.
- Secure against restarting.
- Check that there is no voltage.
- Ground and short-circuit.
- Cover or shield neighboring live parts.
Maintenance work must only be carried out by trained specialist personnel.
Regular checks for insulation and housing damage must be carried out.
The system must never be operated with faulty or non-operational electrical connections.
Always keep control cabinets locked. Only authorized personnel with appropriate training and safety instructions should be allowed access.
Switched off the system immediately in the event of faults in the power supply.
Observe the inspection and maintenance intervals for electrical components specified by the manufacturer.
Some equipment (e.g. inverters) with an electrical intermediate circuit can still carry dangerous residual voltages for a certain time after disconnection. Before starting work on these systems, the absence of voltage must be checked.
If the main switch is switched off, specially marked external circuits (e.g. for control cabinet lighting) may still be live!

2.11. Personal protective equipment

Depending on the work on the system, the following personal protective equipment must be worn:

Protective footwear.
Cut-resistant protective gloves.
Protective eyewear.
Protective headgear.

2.12. Conversions or modifications

Unauthorized conversion or modification of the system is prohibited.

2.13. Spare and wear parts

The use of spare and wear parts from third-party manufacturers can lead to risks. Use only original parts or spare and wear parts approved by the manufacturer. Observe the instructions for spare parts. Find further information in the spare parts list (Appendix, Applicable documents).

3. Technical data

3.1. General system

Table 9. Technical data — General system
Description	Details
Ident. no.	s. type label
Intended service life	15 years
Year of manufacture	from 2020
Battery technology	lithium-ion
Amount of batteries, max.	16
Amount of inverters, max.	8
Installation site	Outdoor area

3.2. Container dimensions

Table 10. Technical data — Container dimensions
Description	Values
Length, approx.	2991 mm
Width, approx.	2438 mm
Height, approx.	3000 mm
Surface area	6.66 m²
Volume	21.12 m³

Image 2. Container dimensions

(A) Top view
(B) Front/rear side
(C) Sides (right/left)

3.3. Power and weight according to system configuration

As shown in the following table, the total weight varies according to the system configuration.

The cooling system is not included in the weight specifications and, if installed, adds 300 kg to the overall weight.

3.3.1. Industrial REFU-BMW series

Table 11. Power and weight — Industrial REFU-BMW series
Item no./power	Total weight in t	Number of inverters	Number of batteries
IMR710 — 704 kW with 656 kWh	9.7	8	16

3.3.2. Industrial KACO BMW series

Table 12. Power and weight — Industrial KACO BMW series
Item no./power	Total weight in t	Number of inverters	Number of batteries
IMK113 — 184 kW with 656 kWh	9.3	2	16
IMK311 — 368 kW with 656 kWh	9.5	4	16
IMK510 — 552 kW with 492 kWh	8.4	6	12

3.4. Battery information

3.4.1. BMW

The BMW battery is a lithium-ion polymer battery.

Table 13. Technical data — HV battery BEV SE09
Naming	Quantity/Size
Length, approx.	1660 mm
Width, approx.	964 mm
Height, approx.	174 mm
Weight, approx.	288 kg
Usable battery capacity, approx.	82 to 656 kWh
C rate, max.	1.07
Capacity per battery module, min.	41 kWh
Storage material	Li-NMC/G-NMC/Carbon/Ceramic separator
Nominal energy capacity	42 kWh
Usable energy capacity	34.6 kWh
Charging power in mains operation, max.	50 kW
Continuous power	40 kW

The usable battery capacity values vary depending on the system configuration. The smallest configuration comprises of 2 batteries and 1 inverter.

Technical data of the battery can be found in the manufacturer’s data sheet (Appendix, Applicable documents).

3.5. Inverter

3.5.1. REFU

Table 14. Technical data — REFU inverters
Naming	Quantity/Size
Length, approx.	673 mm
Width, approx.	626 mm
Height, approx.	321 mm
Weight, approx.	69 kg
Ambient operating temperature, max.	60 °C
AC power, max.	88 kW
Certificates	VDE-4105

3.5.2. KACO

Table 15. Technical data — KACO inverters
Description	Quantity/Size
Length, approx.	719 mm
Width, approx.	699 mm
Height, approx.	460 mm
Weight, approx.	78.2 kg
Ambient operating temperature, max.	60 °C
AC power, max.	92 kW
Certificates	VDE-4105/VDE 4110

3.6. Control cabinet

Table 16. Technical data — Control cabinet
Naming	Quantity/Size
Power consumption	22 kW
Power fuse	32 A
Voltage	400 V
Mains frequency	50 Hz

3.7. Air conditioning unit

Table 17. Technical data — Air conditioning unit
Description	Quantity/Size
Length, approx.	1150 mm
Width, approx.	1200 mm
Height, approx.	640 mm
Weight, approx.	270 kg
Coolant	R134a
Control accuracy	± 3 K

3.8. Fire alarm system

Table 18. Technical data — Fire alarm system
Description	Quantity/Size
Length, approx.	333 mm
Width, approx.	195 mm
Height, approx.	140 mm
Weight, approx.	30 kg

3.9. Components

Technical data of the system components can be found in the manufacturer’s documentation (Appendix, Applicable documents).

3.10. Ambient conditions

Table 19. Technical data — Ambient conditions
Description	Quantity/Size
Ambient temperature (container outside), min.	-20 °C
Ambient temperature (container outside), max. with battery air conditioning	+50 °C
Ambient temperature (container outside), max. without battery climate control	+35 °C
Relative humidity (operation)	5 % to 95 %
Relative humidity (storage)	5 % to 95 %
Operating altitude above sea level (NHN), max.	2000 m
Storage altitude above sea level (NHN), max.	2000 m

The C3 paint finish of the container is not suitable for marine environments.

3.11. Type label

The type label is located outside the container on the maintenance door on the battery side at the bottom right.

4. General description

4.1. Overview — Overall system

Image 3. Overview — Overall system

1 Inverter

5 Cooling system (air conditioning unit)

2 HV800 box

6 Control cabinet (control system, FEMS and grid and plant protection)

3 Container

7 Low-voltage main distribution board incl. circuit breaker

4 Battery stack (max. 16 batteries)

8 Smoke aspiration system

4.2. Components

4.2.1. Energy storage system

The ESS consists of an inverter, an HV800 box and two batteries connected in series.

Optionally, additional battery packs can be connected in parallel to an inverter. To do this, a PAR box must be mounted in front of the HV800 boxes.

Image 4. ESS diagram

4.2.2. HV battery BEV SE09

The BEV SE09 HV battery is a lithium-ion battery. Two battery stacks with a maximum of 8 batteries each are installed in the system.

Further information on the batteries can be found in the manufacturer’s documentation (Appendix, Applicable documents).

4.2.3. Inverter

A maximum of 8 inverters (REFUstore 88k) or up to 4 inverters (KACO gridsave 92.0 kVA) can be used in the system to transfer power between the battery and the grid or vice versa.

Commissioning and monitoring of the inverters is carried out via the FEMS.

Further information on the inverters can be found in the manufacturer’s documentation (Appendix, Applicable documents).

4.2.4. HV800-Box

The HV800 box serves as an interface between the inverter and the batteries. Additional battery packs can be connected in series.

The protective circuit for the batteries is installed in the HV800 box.

4.2.5. FEMS

Information on FENECON Energy Management System can be found in the section Communication and Controlling, on docs.fenecon.de and in the manufacturer’s documentation (Appendix, Applicable documents).

4.2.6. Low-voltage main distribution board

Image 5. Low-voltage main distribution board

The low-voltage main distribution board is the power transfer point to the operating system. The power distribution of the inverters is controlled from here.

The connection to the Siemens circuit breaker is made in the low-voltage main distribution board. Depending on the container design, a Siemens circuit breaker for a maximum current of 800 A is installed for up to four inverters and for a maximum current of 1250 A for more than four inverters.

Optionally, the low-voltage main distribution board can also supply the control cabinet with power. Further information can be found in the External interfaces section.

4.2.7. Control cabinet

Image 6. Control cabinet

The control cabinet serves as the central control unit for the entire container. The communication connection and the interface for connecting the operator are located in the control cabinet.

The following components are located on the door of the control cabinet:

Display
Service-Port
Emergency-off push-button
Main switch

Find further information in the External interfaces section.

4.2.8. Integrated climate control unit RFCS-SON-016000-C-L-R25-3-IW

The air conditioning unit is an air-cooled compressor cooling system and is specially designed for the installation. The cooling capacity is 16 kW.

Further information on the integrated air conditioning unit can be found in the manufacturer’s data sheets (Appendix, Applicable documents).

4.2.9. Option — Aspirating smoke detector Securiton ASD 531

Image 7. Aspirating smoke detector

The fan generates a negative pressure in the intake pipe networks, which results in new air constantly entering the detector box via the intake pipes. The smoke sensor is therefore constantly supplied with new air samples from the areas to be monitored. If the smoke concentration exceeds the permissible value, the ASD 531 triggers an alarm.

Further information on the aspirating smoke detector can be found in the manufacturer’s documentation [applicable documents]).

4.2.10. Further equipment of the container

Maintenance doors

The maintenance doors are installed on the battery container and are closed using gas pressure springs.

Use U-locks to lock and secure the maintenance doors. Keep the key in a safe place.

Ventilation openings in the inverter area

The ventilation openings in the inverter area are bolted to the container.

Option — Extinguishing water supply

Image 8. Extinguishing water supply

The container can be supplied with an optional extinguishing water feed opening on the side.

4.2.11. External interfaces

The system is equipped with the following external interfaces:

AC power connections

Table 20. Electrical connection — AC power connections
Function	Design	Comment
Main supply	Single-wire version, per system configuration Up to four single conductors with 240 mm² per phase can be connected. For the correct cable selection, please refer to the attached document (Appendix, Applicable documents).	3L/N/PE The three phases L1-L3 must be connected to the round conductor connection terminals of type 3VW9011-0AL71. Up to four inverters, the circuit breaker of type 3VA2780-1AA03-4HB0 with 800 A is used; from five inverters, the circuit breaker of type 3VA2712-1AC03-4MA7-Z with 1250 A is used.
Control voltage	Characteristics of the overcurrent protection device C32A	Only required if the control voltage is supplied externally and not internally via the main supply. Sufficiently dimension the supply line to ensure C32A and 22 kW. 3L/N/PE

Communication connections

Table 21. Electrical connection — Communication connections
Function	Type	Amount per container	Comment
Internet	Network cable CAT6 or CAT7 with RJ45 plug	1	If an LTE router is available, the network cable is not required.
Internal network	Network cable CAT6 or CAT7 with RJ45 plug	1	Only required if several containers are installed at one location. If integrated energy management functions are used by means of an external measuring point. For master-slave operation For meter connection
Modbus RTU	Li2YCY(TP) 2 x 2 x 0.22 or similar	1	If integrated energy management functions are used by means of an external measuring point. Only required once on the container.
Fire alarm system	Two potential-free relay contacts	1	Further information on the aspirating smoke detector can be found in the manufacturer’s documentation (Appendix, Applicable documents).
Service port control cabinet	Assign static IP address	1	The static IP address can be used to access the internal network of the control cabinet.
Emergency-off push-button	Double-channel design	1	Option — Additional emergency-off push-buttons can be integrated.

4.3. Communication and Controlling

The battery storage system can be charged and discharged with control commands from the energy management system.

In normal operation, only read access to the measurement data is possible. The FEMS App "Modbus/TCP write access" can be purchased optionally for overriding the system.

4.3.1. FEMS

The FEMS connection box (HV800 box) is supplied fully wired and installed ready for connection.

The FEMS Online Monitoring enables access to the live data and historical data of the system at any time.

4.3.2. FEMS Apps

Image 9. FEMS Apps

If required, energy management can also be expanded with additional FEMS apps. The FEMS app includes the software algorithm and a widget for FEMS Online Monitoring. With the help of the energy management system, it is possible to use the battery more effectively and thus increase PV self-consumption, for example.

FEMS Apps are available for all requirements. Each electrical energy storage system gets the FEMS apps it needs. New FEMS Apps can be added at any time as required. New FEMS Apps automatically interact with the existing ecosystem.

Further information is available at docs.fenecon.de.

4.3.3. FEMS Online Monitoring

Access to FEMS Online Monitoring is available on the FENECON homepage in the top right corner.

Image 10. FENECON-Homepage — Access to FEMS Online Monitoring

In FEMS Online Monitoring, a distinction is made between the following two views:

Live view
Historical view

Live view

All current values are displayed in the live view.

Historical view

In the historical view, all values are displayed over a definable period in the past.

Visualization of the values

The values are visualized using widgets. A distinction is made between "flat widgets" and "advanced widgets". Flat widgets only show the relevant/simplified values. Clicking on the flat widget takes you to the advanced widget. This shows more detailed information (e.g. the power consumption curve for a day).

In the following example, a distinction is made between the energy monitor on the left, which shows basic information about the battery (e.g. grid withdrawal or grid feed-in) and the other widgets on the right, which can display more precise values (e.g. the self-sufficiency level or self-consumption).

Image 11. Energy monitor/widgets

A: Energy monitor
B: Other widgets

Further information on {oem-full-name} can be found at docs.fenecon.de and in the technical documentation (Appendix, Applicable documents).

4.3.4. Communication protocol

The system can receive charge/discharge commands via a Modbus TCP interface. It is necessary to communicate with each battery pack PCS system individually.

The REFU-PCS supports the SunSpeck MESA communication protocol and the values represented by this standard protocol.

Access to the communication protocol

→ Have the FEMS number at hand.

Open the website portal.fenecon.de
Log in to the system in the menu displayed and then enter the FEMS number of the system you are looking for in the search field.

Then click on the FEMS you are looking for to access the various widgets.

Click on the burger menu in the top left of the taskbar.

Select the >>Settings<< entry.

Select the blue arrow under the >>Plant profile<< tab.
Then scroll down until you find the file with the name >>ctrlApiModbusTcp0<<.

Click on the black arrow.

Click >>DOWNLOAD PROTOCOL<< to download the communication protocol.

The FEMS App provides a Modbus/TCP slave API interface. The Modbus interface is configured as follows:

Parameters of the FEMS app Modbus/TCP-API, read-only
Port	502
Unit ID	1
Function codes	03 (Read Holding Registers)
04 (Read Input Registers)

Parameters of the FEMS app Modbus/TCP-API, read-only

Port

502

Unit ID

Function codes

03 (Read Holding Registers)

04 (Read Input Registers)

The Modbus interface enables access to the channels of the "_sum" component as standard.

The individual Modbus protocol for the respective operator system can be downloaded as an Excel file via FEMS Online Monitoring. The following quick overview contains the most important data points:

Table 22. Modbus table component Sum
Address (address)	Name (Name)	Type (Type)	Value/Description (Value/Description)	Unit (Unit)	Access (Access)
200	Component-ID	string16	_sum		RO
222	State	enum16	0:Ok, 1:Info, 2:Warning, 3:Fault		RO
302	EssSoc	uint16	State of charge [0 - 100]	Percent [%]	RO
303	EssActivePower	float32	AC-side active power of the electrical energy storage including excess DC generation with hybrid inverter	Watt [W]	RO
309	EssReactivePower	float32	AC-side reactive power of the electrical energy storage	Volt Ampere Reactive [var]	RO
315	GridActivePower	float32	Active power at grid connection point	Watt [W]	RO
317	GridMinActivePower	float32	Minimum active power measured per grid connection point	Watt [W]	RO
319	GridMaxActivePower	float32	Maximum active power per measured active power at the grid connection point	Watt [W]	RO
327	ProductionActivePower	float32	Active power of the PV yield and, if applicable, yield from external inverters	Watt [W]	RO
329	ProductionMaxActivePower	float32	Maximum measured active power of the PV system	Watt [W]	RO
331	ProductionAcActivePower	float32	Active power of the external AC inverters	Watt [W]	RO
339	ProductionDcActualPower	float32	Power of the DC generation of the hybrid inverter	Watt [W]	RO
343	ConsumptionActivePower	float32	Active power of the electrical consumption	Watt [W]	RO
345	ConsumptionMaxActivePower	float32	Maximum active power of electrical consumption ever measured	Watt [W]	RO
351	EssActiveChargeEnergy	float64	Cumulative electrical energy of the AC-side battery charging incl. excess PV generation at the hybrid inverter	Watt hours [Wh]	RO
355	EssActiveDischargeEnergy	float64	Cumulative electrical energy from electrical energy storage to consumption via AC output of the inverter incl. PV generation	Watt hours [Wh]	RO
359	GridBuyActiveEnergy	float64	Cumulative electrical energy from grid consumption	Watt hours [Wh]	RO
363	GridSellActiveEnergy	float64	Cumulative electrical energy of the grid feed-in	Watt hours [Wh]	RO
367	ProductionActiveEnergy	float64	Cumulative electrical energy of PV generation + external inverter generation	Watt hours [Wh]	RO
371	ProductionAcActiveEnergy	float64	Cumulative electrical energy of the external inverters	Watt hours [Wh]	RO
375	ProductionDcActiveEnergy	float64	Cumulative electrical energy of the PV generation of the inverter	Watt hours [Wh]	RO
379	ConsumptionActiveEnergy	float64	Cumulative electrical consumption	Watt hours [Wh]	RO
383	EssDcChargeEnergy	float64	Cumulative DC electrical energy of battery charging	Watt hours [Wh]	RO
387	EssDcDischargeEnergy	float64	Cumulative DC electrical energy of storage discharge	Watt hours [Wh]	RO
415	EssDischargePower	float32	Actual AC-side active power of the electrical energy storage	Watt [W]	RO
417	GridMode	enum16	1:On-Grid, 2:Off-Grid		RO

Data types
The following data types are used in the Modbus protocol:

uint16 — Unsigned integer in a Modbus 16-bit word
uint32 — Unsigned integer in a Modbus 32-bit double word
float32 — Floating point number in IEEE 754 format in a Modbus 32-bit double word
float64 — Floating point number in IEEE 754 format in four Modbus words (64-bit)
string16 — String in ASCII format with two characters per Modbus 16-bit word

For data points that are longer than a 16-bit word, the correct length must be read in each case. Otherwise a read error is generated.

Example: To read the address 303 _sum/EssActivePower, both Modbus words 303 and 304 (32-bit) must be read.

Undefined data

Depending on the system, individual data points may be permanently unavailable (e.g. because there is no generator or electrical energy storage) or temporarily unavailable (e.g. in the event of a communication error with the grid meter). In this case, the following values must be read out via the API:

Table 23. Data type/undefined value
Data type	Undefined value
uint16	0xffffff
uint32	0xffffffffff
float32	0x7fc000
float64	0x7ff8000000
string16	0x00000000000000000000000000000000

Further information can be found at https://docs.fenecon.de/en/fems/fems-app/App_ModbusTCP_Lesezugriff.html.

Extension — FENECON Home 10 App Modbus/TCP-API write access

As with the read-only interface, access to the channels of the "_sum" component must be enabled as standard. Access to other components is enabled on a project-specific basis (e. g. enabling controllable electricity storage systems or charging stations via the interface).

The Modbus table can be downloaded in the same way as for the read-only interface. The Modbus table is structured in blocks. Each block corresponds to a component and differs depending on which properties the component supports.

Each block has a header data area, which is structured as follows:

Table 24. Structure — Header data area
Address offset	Description	Data type
0	Component ID	string16
16	Length of the entire block	uint16
17-19	Reserved
20	Hash of the nature name	uint16
21	Length of the Nature block	uint16

All component blocks and nature blocks together result in the individual Modbus table for an FEMS.

There are the following three access variants:

RO (Read-Only)
RW (Read-Write)
WO (Write-Only)

Find further information at https://docs.fenecon.de/en/fems/fems-app/App_ModbusTCP_Schreibzugriff.html.

4.3.5. Lightning and surge protection

The system is equipped with overvoltage and lightning protection.

External lightning protection

The outer steel container wall is 4 mm thick, so that no interception rods are required and targeted discharge takes place via the frame construction and/or crossbars.

Earthing system

The earthing system is based on DIN EN 62305 (in accordance with DIN 18014). If necessary, local requirements must be taken into account.

NIRO V4A materials
Recommended resistance value according to DIN EN 62305: ~10 Ohm
Designed as ring equipotential bonding or, alternatively, with earthing rods

Internal lightning protection

The internal lightning protection (based on the standard: DIN EN 62305, local requirements may have to be taken into account) comprises the following three main parts of the container:

Mains voltage contactor
Contactor of the communication unit
Contactor for the supply line for the integrated air conditioning units and the smoke extraction system (outdoor units)

Overvoltage protection

Overvoltage protection is provided on the auxiliary voltage, the supply line, the RS485 interface and the LAN port by various uninterruptible power supplies (UPS).

4.4. Signal transmitter

Image 12. Flashing light and horn

4.4.1. Optical alarm unit — Flashing light

The visual alarm unit is attached to the outside of the system and signals a fire in the container with a flashing light.

4.4.2. Audible signaling device — Horn

The acoustic signal transmitter is attached to the outside of the system and emits a signal tone to indicate a fire in the container.

4.5. Exhaust air and supply air of the inverters in the container

4.5.1. REFU container

The REFU inverters are installed horizontally in the container. As the inverters draw in and blow out air opposite each other, the result for the container as a whole is that air is drawn in at the protective gratings on the control cabinet side and the warm exhaust air is blown out at the gratings on the battery side.

4.5.2. KACO container

The KACO inverters are installed vertically in the container, which means that the protective grating on both sides is used for the supply air and exhaust air.

5. Assembly

The container is delivered ready for connection and still needs to be set up and connected on site.

5.1. Notes on installation

The container must be positioned at the installation site on a suitably dimensioned foundation with sufficient load-bearing capacity.
If necessary, the foundation must be designed to prevent slippage and movement.
The installation site must be well lit.
The area should be contactor protected.
If contact with vehicles (e.g. in a parking lot or on a road) is conceivable/possible, the system must be protected.

Earthing system

The earthing lugs can be connected directly to the container with screw connectors at the marked points of the earthing connections on the container.

The earthing system must be designed in accordance with the locally applicable requirements.

Image 13. Earthing connection points on the container

E — Earthing connection points on the container

Cable entry

The container has a total of three cable entry openings in the area of the low-voltage main distribution board and the control cabinet. The cables must be fed into the container from below. The necessary normative bending radius must be observed when inserting the cable.

Image 14. Cable entry on the container

1 — Cable entry NSHV 2 x (view from below)
2 — Cable entry for control cabinet (view from below)

The openings are sealed with a customized cable gland from Roxtec.

Image 15. Roxtec cable entry

Further information on the assembly of Roxtec cable glands can be found in the manufacturer’s data sheets (Appendix, Applicable documents).

5.1.1. Space requirement at the installation site

The container is designed so that access to the battery storage system must be possible from the front and rear during installation and for maintenance purposes. It is also recommended to maintain a distance of 1 m from existing buildings on the left and right side walls.

The following distances must be observed:

Image 16. Spacing for multiple containers

Arrangement of several containers

If several containers are arranged at one system location, they can be positioned in a row. It is recommended to plan a distance of 3 m after every 4 containers in a row for maneuvering purposes.

5.1.2. Foundation

The container must be positioned on a sufficiently dimensioned foundation at the installation site. The foundation can be constructed as a point foundation consisting of 4 points over two strip foundations or on a single foundation. The cable entries must remain freely accessible. Information on the dimensions of the foundation can be determined using the load transfer points of the containers.

Further information on weight transfer and load transfer points can be found in the structural analysis reports for the containers and the weight table (Appendix, Applicable documents).

Load transfer points — REFU container

The load transfer points are shown in kN in the following diagram.

Image 17. Load transfer points — REFU container

Load transfer points — KACO containers

The load transfer points are shown in kN in the following diagram.

Image 18. Load transfer points — KACO containers

5.1.3. Electrical connection

Safety instructions

Electrical voltage
Death or serious injury to the body and limbs due to electric shock or the effects of fire caused by electrical energy.

The procedure for connecting/replacing the batteries must be followed.
It is forbidden to disconnect the plug connections while they are live. The energy supply and the consumer must be disconnected from the battery.
Batteries must neither be connected nor disconnected when a current is flowing. The circuit must first be disconnected at another point.
Opening the battery packs is prohibited.

Incorrect earthing Death or serious injury to the body or limbs due to electric shock caused by incorrect earthing.

After installation, check that the earthing has been carried out in accordance with the requirements.
The system must only be used with a functioning earthing system.

Connection is only permitted if a residual current device or residual current operated protective device (RCD) is used on the connection side. → Use only the specified batteries (Appendix, Applicable documents).

Connection — Earthing systems

The container has 2 prepared earthing points under each of the maintenance doors.

Image 19. Four earthing points of the container (view from below)

We recommend earthing with a cable lug (size M8) at all earthing points of the container, as well as earthing the housing and the copper rail of the low-voltage main distribution board.

In Germany, the measurement on the foundation earth electrode must result in a value of <1 Ohm.

When planning the electrical connection for the battery storage system, the electrical connection must be planned at an early stage. The following overview list shows the necessary cables.

Main supply

Table 25. Cable for main supply
Function	Implementation	Amount per container	Note	Measures
Main supply	Single wire version, depending on system configuration. Up to four single conductors can be connected per phase. For the correct cable selection, please refer to the attached document (Appendix, Applicable documents)	4 (x 2)	3L/PE PEN (TN-C) is also possible when installed through a bridge from earth to neutral.	The AC cables must be routed from the container floor through the Roxtec cable entries into the LVB to the miniature circuit breaker of the master container. Up to four inverters the circuit breaker type 3VA2780-1AA03-4HB0 with 800 A is used, from five inverters the circuit breaker type 3VA2712-1AC03-4MA7-Z with 1250 A is used. Connect the three phases, 0 conductor and earthing according to the circuit diagram. The three phases, L1 to L3, must be connected to the round conductor connection terminals of type 3VW9011-0AL71.

Table 26. Cable for main supply 2
Function	Implementation	Amount per container	Note	Measures
				Connect the 0 conductors to the V terminal. Attach the PE cables to the V terminals at the bottom of the copper rail.
Control voltage	Characteristics of the overcurrent protective device C16A	1	Only required if control voltage is supplied externally and not internally via the main supply	Optional: Move the auxiliary supply to the container. Route the cables to the control cabinet via the cable glands on the housing and connect according to the circuit diagram.

Communication connections

Table 27. Cables for communication connections
Function	Implementation	Amount per container	Note	Measures
Internet	Network cable, CAT6 or CAT7 with RJ45 plug	1	Only required once on the master container	Lay an RJ45 cable from the operator network to the container and connect to terminal F8 according to the circuit diagram.
Master/slave	Network cable CAT6 or CAT7 with RJ45 plug	2	Only required if several containers are installed at one location.
External measurement/meter	Li2YCY(TP) 2 x 2 x 0.22 or similar	1 a	* Only required if integrated energy management functions are used by means of an external measuring point. * Only required once on master container. * Each meter requires suitable current transformers.	Set the appropriate transformer ratio on the meter. Lay the RJ45 cable from the meter into the control cabinet and connect it to terminal F10 according to the circuit diagram.

Cable entries

Image 20. Cable entry (underside of container)

Further information on the exact position and dimensions of the cable entries can be found in the installation instructions (section Cable entries).

Further information on selecting the appropriate cable cross-section for copper cables can be found in the appendix (Appendix, Applicable documents).

5.1.4. Single-line diagram

Image 21. Single-line diagram

1	Operator internet
2	RJ45
3	Industrial ESS
4	RS485 or RJ45
5	Grid
6	Meters
7	Supply voltage

The cables described here are not included in the scope of delivery.

An external power supply/auxiliary power supply can be supplied as an option.

The exact connections on the container are contained in the circuit diagram (Appendix, Applicable documents).

6. Commissioning

6.1. Initial commissioning

Initial commissioning is not considered in the installation and service instructions, as this phase has already been carried out by the manufacturer during the factory acceptance test.

6.2. Requirements for commissioning

6.2.1. Internet connection

First, a permanent internet connection must be established to ensure access to FENECON Online Monitoring. This can basically be ensured by two different options. By using a LAN cable or by using a VPN router.

LAN cable option

The connection via LAN cable is described in Table 24 (section Electrical connection).

VPN router option

A SIM card with approx. 15 GB data volume is required to provide the internet connection.
Send the SIM card to FENECON.
The necessary configurations and the installation of the router with SIM card in the storage container are then carried out there.
Further information can be found in the manufacturer’s installation and service instructions (Appendix, Applicable documents).

6.2.2. Network configuration

In the standard configuration, the FEMS obtains the network configuration via a DHCP server. The configuration of a static IP can only be implemented via remote maintenance. Keep the following information contacting the FENECON Service at hand:

Desired IP address
Net mask
Gateway
DNS-Server

The network configuration can be implemented in three different ways.

Image 22. Possible network configurations

The internet is provided with an antenna, the Modbus connection is made at FEMS.
The internet and the Modbus connection are connected to the LTE router.
The internet connection is connected to the router, the Modbus connection is made at FEMS.

6.2.3. Firewall

The following services run on the FEMS and require an active internet connection:

DNS
FENECON package updates
Operating system package updates
Operating system security updates
FEMS Online Monitoring
Time synchronization
Remote maintenance

6.2.4. System-Update

As part of the system update, the latest software is downloaded from www.fenecon.de and installed. The system update takes place once a day at around 5 a.m.

6.3. Commissioning procedure

Only commence commissioning after all standardized measurements required by national regulations have been carried out at the place of use before initial commissioning.

Deactivate emergency-off

First check if the emergency-off push-button on the control cabinet is deactivated (i.e. not actuated).

Switch on grid and plant protection/main switch

Check whether the network monitoring relay still needs to be adapted to specific country standards. Information on the setting can be found in the instructions of the device manufacturer Tele-Haase NA03.
Switch the main AC switch on the control cabinet to ON position.
- The battery storage control unit starts up.
- The integrated mains monitoring relay checks whether the mains parameters are within specified limits. If this is the case, the main circuit breaker is switched on after a standardized waiting time
  - Once the supply voltage has been applied to the system, the system can be started locally on the display in the menu.

Overvoltage protection

Check that all UPS are installed and ready for operation.
Switch on the UPS.

System start

Tap on the display and log in with the password admin.
Then tap on the three stripes at the top left to show the menu bar.
Then select "FEMS setting".

Alternatively, the system can also be started automatically via the Modbus interface. The communication protocol can be downloaded from the system’s Online Monitoring. For this process, follow the documentation of the FEMS controller.

FEMS Apps

Proceed with the commissioning of the applications according to the extra commands if the system is to be controlled by means of integrated applications.

Lock maintenance doors

To be able to press the maintenance door, the help of a second person may be required for the next step.

Close both maintenance doors.
Check that the two maintenance doors on both sides are properly closed and latched.
Lock both maintenance doors with the key.
Then send the commissioning report to FENECON GmbH.

6.4. Post-commissioning measures

During operation, the system can be monitored via the display on the control cabinet. When the screen is tapped, the current system parameters of the battery storage can then be viewed. A detailed description of the monitoring function can be found in the documentation for the FEMS control unit (Appendix, Applicable documents).
Alternatively, complete monitoring of the system is also possible via the integrated remote access or the Modbus interface. Further information on this can be found in the documentation for the FEMS controller (Appendix, Applicable documents).
Carry out and record visual inspections of the system (leaks, possible condensate, damaged pipes, damaged insulation, damaged seals, etc.).
Optional — Additional on-site check of the functionality of the fire monitoring and emergency-off function. However, these were already tested during the initial commissioning, the factory acceptance test.

6.5. Commissioning after relocation

Information on recommissioning after relocation can be found in the Commissioning procedure section.

6.6. Recommissioning after a longer down time

Information on recommissioning after a longer down time can be found in the sections Commissioning procedure and [Starting/stopping system operation]).

6.7. Recommissioning after a fault

Information on recommissioning after a longer down time can be found in the sections Commissioning procedure and [Switching on after fault "Power failure"]).

6.8. Operation

There are no persons in the system during operation.
The system is locked and inaccessible.

6.9. Safety instructions

EMC radiation inside the enclosure
Death or serious injury to the body and limbs due to malfunction of implanted medical electronic devices (e. g. pacemakers) due to electromagnetic waves caused by high electrical currents.

It is forbidden for persons with implanted medical electronic components to enter the container or work on the open container.
After replacing components and maintenance work, the continuity of the earthing must be checked.

Gas leakage Death or serious injury to body and limbs due to explosion of an explosive gas caused by damage to the container or its components.

In general, there must be no potential sources of ignition in the area of the container.
Smoking is prohibited.
In the event of defects, switch off the system and inform FENECON GmbH (section FENECON Service).

If noise or vibrations occur during operation, locate and rectify the issue.
Operating the system without earthing is prohibited.
Entering the container during operation is prohibited.
The maintenance doors must be closed while the system is in operation.
The keys for access to the system (e. g. maintenance doors) must only be issued to authorized specialist personnel. It is recommended that the issuing of keys is recorded.
In the event of defects in the system, inform FENECON GmbH (section Maintenance, section FENECON Service).
In the event of electrolyte leakage, wear suitable protective equipment as specified by the battery manufacturer (safety data sheet) (Appendix, [applicable documents]).

6.10. Operating and control points

The following operating and control points are located on the control cabinet:

Image 23. Operating and control points on the control cabinet

Table 28. Operating and control points on the control cabinet
Item	Description	Position	Function
1	Display		The system is accessed via the display on the control cabinet.
2	Acknowledgement push-button		The acknowledgement key must be pressed after unlocking the emergency-off to confirm this.
3	Emergency-off push-button	activated	Emergency-off tripped
3	Emergency-off push-button	unlocked	Normal operation possible
4	Main switch with emergency-off function	I	Installation AC-side connected
4	Main switch with emergency-off function	O	System disconnected on AC side

6.11. Adjustment work

The installation and service instructions do not consider the adjustment work on the system, as the basic settings are implemented by the manufacturer itself and are completed at the time of placing on the market and/or commissioning.

The operator can variably select an automatic start/stop function and the start of Peak Shaving. Find information about this at docs.fenecon.com.

6.12. Operation requirements

All assembly and commissioning steps described above have been carried out properly or are being complied with.
Access is only possible for authorized persons.
All protective measures (e. g. acrylic glass to protect against electric shocks) have been installed.
There are no errors/faults.

6.13. Start/stop system operation

6.13.1. Start system operation

Configure the network interface on the laptop

Assign the configuration of the network interface on the laptop:
→ IP address: 10.4.0.101.
→ Subnet mask: 255.255.0.0 to configure the network interface on the laptop.

Connect the service LAN port on the control cabinet to the laptop.
Connect to the BCS via the browser on your laptop:
→ Call up IP address 10.4.0.31

Enter user name and password in BCS:
→ User name: customer
→ Password: operator
Log in to FEMS Online Monitoring:
→ With the existing access data.
Switch on the main switch.
Select the "NSHV Enable" widget/digital output in Online Monitoring.

Set "NSHV Enable" to "On".

Check the circuit-breaker indicator on site to see whether it is showing "On" (indicator is red).
Unlock the emergency-off push-button on the control cabinet.
Press the white push-button on the control cabinet door to acknowledge the emergency-off.
→ The white illuminated push-button lights up.

If additional emergency-off push-buttons have been installed, these must also be confirmed.

In the BCS, click on the box marked in the image to open information on the selected PCS.
→ The display must be completely white.

First press the lower "BCS Power ON" button marked in the image above for all electrical energy storage units individually. Start with the first PCS and press the "BCS Power ON" button down to the last PCS.

Before switching on the next PCS, wait until the previous PCS has finished switching on. The display changes color.

Then press the upper "Inverter Release" button marked in the image above for all electrical energy storage units individually.

Set the battery status to "Default".

In FEMS Online Monitoring, click on the icon in the taskbar.

Click on the "Settings" menu in FEMS Online Monitoring.

In FEMS Online Monitoring, click on the arrow button under "Configure components".

Set the battery status to "Default" for all battery management systems and then update the components. To do this, proceed as follows.

Enter "bmsa1" in the search field.

Select the "bmsA1" entry from the "Batteries" category.

In the line, change the "Battery state" setting to "Default" and then press the "UPDATE COMPONENTS" button.

Carry out these steps (21 to 23) for the remaining BMS A1-A4/B1-B4 as well.

Containers that are not fully equipped may also have less BMS.

Check the display in the BCS interface.

Display

Meaning

Green

All in order

Red

Contact FENECON GmbH

Yellow

Wait until the color changes

Set ESS to "Start"

Click on the "Settings" menu in FENECON Online Monitoring.
In FENECON Online Monitoring, click on the arrow button under "Configure components".
Enter "essa1" in the search field.

Select the "essa1" entry from the "Storage systems" category".

For each ESS A1-B4 individually, set "Start" in the "Start/stop behavior?" line and then update the component.

Check inverter

Click on the "Settings" menu in FENECON Online Monitoring.
In FENECON Online Monitoring, click on the arrow button under "Log".

Switch off "Automatic update".

Check whether "Started/Running" or "GoRunning/StartingUp" is set for all inverters (marked red for inverter A1 in the image as an example).
- If these entries are made for all inverters, the switch-on process is complete.

If these entries are not available for all inverters, contact Fenecon GmbH.

Manual control charge/discharge" option

INM FEMS manual charge discharge control

The power can be set under the menu item "Manual control charge/discharge".

Switch on the controller and enter manual power.
Then deactivate the controller so that the set applications work, as the controller overwrites the other data/settings during operation.

6.13.2. End system operation

Configure the network interface on the laptop

Assign the configuration of the network interface on the laptop:
→ IP address: 10.4.0.101.
→ Subnet mask: 255.255.0.0 to configure the network interface on the laptop.

Connect the service LAN port on the control cabinet to the laptop.
Connect to the BCS via the browser on your laptop:
→ Call up IP address 10.4.0.31

Enter user name and password in BCS:
→ User name: customer
→ Password: operator
Log in to FEMS Online Monitoring:
→ With the existing access data.

Set ESS to "Stop"

In FEMS Online Monitoring, click on the icon in the taskbar.

Click on the "Settings" menu in FEMS Online Monitoring.

In FEMS, click on the arrow button under "Configure components".

Enter "essa1" in the search field.

Select the "essa1" entry from the "Storage systems" category.

Set each ESS A1-B4 individually to "Stop" in the "Start/Stop behavior" line and then update the component.

Check inverter

Click on the "Settings" menu in FEMS Online Monitoring.

In FEMS Online Monitoring, click on the arrow button under "Log".

Switch off "Automatic update".

Check whether "Standby/Stopped" is set for all inverters (inverter A3 is marked red in the image as an example).
- If these entries are made for all inverters, the switch-off process is complete.

If these entries are not available for all inverters, contact Fenecon GmbH.

Set battery status to "Stop"

In FEMS Online Monitoring, click on the icon in the taskbar.

Click on the "Settings" menu in FEMS Online Monitoring.

In FEMS Online Monitoring, click on the arrow button under "Configure components".

For all battery management systems, set the battery status to "Stop" and then update the components. To do this, proceed as follows.

Enter "bmsa1" in the search field.

Select the "bmsA1" entry from the "Batteries" category.

For all bmsA1-B4, change the "Battery state" line individually to "Stop" and then press the "UPDATE COMPONENT" button.

In the BCS, click on the box marked in the image to open information on the selected PCS.
- The display should be green/gray.

First switch off the upper "Inverter Release" button marked in the image above for all electrical energy storage units individually. Start with the first PCS and switch off the "Inverter Release" button down to the last PCS.
Then switch off the lower "BCS Power On" button for all PCSs individually. Start with the first PCS and switch off the "Inverter Release" button down to the last PCS.

Before switching off the next PCS, wait until the previous PCS has finished switching off. The display changes color to white.

Press the emergency-off push-button when all displays are white.

Switch off the main switch on the control cabinet.
Select the "NSHV Enable" widget/digital output in Online Monitoring.

Set "NSHV Enable" to "OFF".

Check the circuit breaker indicator on site to see whether it is "Off" (indicator is green)
- The switch-off process is complete.

If the circuit breaker indicator shows "On" (indicator is red), contact Fenecon GmbH.

6.13.3. Switching on after "power failure" fault

Check digital inputs

Log in to FEMS Online Monitoring.
Switch on widget/digital inputs.

The following image should be displayed:

Check battery inverter in log

In FEMS Online Monitoring, click on the icon in the taskbar.

Click on the "Settings" menu in FEMS Online Monitoring.

In FEMS Online Monitoring, click on the arrow button under "Log".

Switch off "Automatic update".

Check the status of all battery inverters.

If "Started/Running" or "GoRunning/StartingUp" is displayed (inverter A1 marked red in the image as an example), the system has automatically switched back on. If not, proceed as follows.

In FEMS Online Monitoring, click on the icon in the taskbar.
Click on the "Settings" menu in FEMS Online Monitoring.

In FEMS Online Monitoring, click on the arrow button under "Configure components".

Enter "batteryinverter" in the search field.

Set all battery inverters individually to "Stop" in the "Start/stop behavior?" line and then update the component.

Set all ESS to "Stop"

Enter "essa1" in the search field.

Select the "essA1" entry from the "Storage systems" category.

For each ESS A1-B4 individually, set the "Start/Stop behavior?" line to "Stop" and then update the component.

Then set all battery inverters in the "Start/Stop behavior" line to "Auto" and proceed as described above.
Then set all ESS for "Start/Stop behavior" to "Auto" and proceed as described above.

Check in log

Check whether "running" or "started running" is displayed for all battery inverters (inverter A1 is marked red in the image as an example).
- If "running" or "started running" is displayed for all battery inverters, the connection procedure is complete.

If "running" or "started running" is not displayed for all battery inverters, contact FENECON GmbH.

Manual control charge/discharge" option

The power can be set under the menu item "Manual control charge/discharge".

Switch on the controller and enter manual power.
Then deactivate the controller so that the set applications work, as the controller overwrites the other data/settings during operation.

6.14. Monitoring of system operation

The system is monitored via an industrial VPN router and the internet.

The system/system component data can be called up at any time from the remote maintenance center.

6.14.1. Monitoring

During operation, the system can be monitored via the display on the control cabinet or via portal.fenecon.de.

Tap on the screen.
- The current system parameters of the battery storage system are displayed.

A detailed description of the monitoring functions can be found in the FEMS controller documentation.

Alternatively, complete monitoring of the system is also possible via the integrated remote access or the Modbus interface. Further information on this can be found in the FEMS controller documentation.

Fault messages

Information on how to register can be found in the FEMS section or via portal.fenecon.de.

Log in to FEMS Online Monitoring.
Check the system status by the color of the symbol at the top right.

Display

Meaning

Green checkmark

Everything is OK

Orange exclamation mark

Warning

Red exclamation mark

Error

After clicking on the icon, a detailed overview of the existing warning or error is displayed.

Click on the icon at the top right to display the system status.

Check the status of the components.

Display

Meaning

Green checkmark

Everything is OK

Orange exclamation mark

Warning

Red exclamation mark

Error

Click on the blue arrow to the left of the exclamation mark to display further information on the error in the event of an error.

For some error messages, no text is yet stored in the error analysis. Later updates will add these entries.

FEMS cannot be reached

If the FEMS cannot be reached via the FEMS Online Monitoring, the following error message is displayed:

Carry out the steps specified in the error message.

Emergency-off

To disconnect the HV battery connections in critical cases and switch off the battery storage system internally, the emergency-off push-button must be pressed.

Fire monitoring (optional)

The container has an optional integrated fire monitoring system. This fire monitoring system detects a fire at a very early stage and shuts down the container immediately. A siren signals the alarm on site.

A possible false alarm must be deactivated directly on the unit of the fire monitoring system by pressing the [RESET] push-button.

6.14.2. Messages in Online Monitoring

The meanings of various errors, warnings and information are listed below.

Error meaning

Table 29. Meaning of the displayed error
Name	Description	Affected Unit
RUN_FAILED	Running the Logic failed	BMW Battery
ERROR	State-Machine in Error-State!	BMW Battery
ERROR_BATTERY_TYPE	Configuring the Battery Type not successful!	BMW Battery
MAX_ALLOWED_START_TIME_FAULT	The maximum start time is passed!	BMW Battery
MAX_ALLOWED_STOP_TIME_FAULT	The maximum stop time is passed!	BMW Battery
DEEP_DISCHARGE_PROTECTION	Deep discharge protection triggered!	BMW Battery
UNSPECIFIED_ERROR	Unspecified Error — Cell-config-Error, Slave-count-Error	BMW Battery
LOW_VOLTAGE_ERROR	Low Voltage Error — Cell voltage minimal	BMW Battery
HIGH_VOLTAGE_ERROR	High Voltage Error — Cell voltage maximal	BMW Battery
CHARGE_CURRENT_ERROR	Charge Current Error — Imax-HW, Imax-SW, I-High (e.g. current dependend on temperature)	BMW Battery
DISCHARGE_CURRENT_ERROR	Discharge Current Error — Imax-HW, Imax-SW, I-High (e.g. current dependent on temperature)	BMW Battery
CHARGE_POWER_ERROR	Charge Power Error	BMW Battery
DISCHARGE_POWER_ERROR	Discharge Power Error	BMW Battery
LOW_SOC_ERROR	Low SOC Error	BMW Battery
HIGH_SOC_ERROR	High SOC error	BMW Battery
LOW_TEMPERATURE_ERROR	Low Temperature Error — Cell temperature minimal	BMW Battery
HIGH_TEMPERATURE_ERROR	High Temperature Error — Cell temperature maximal	BMW Battery
INSULATION_ERROR	Insulation Error — I-Diff error (self test error, I-Diff > \|300 mA)	BMW Battery
CONTACTOR_ERROR	Contactor Error (contactor feedback signals)	BMW Battery
SENSOR_ERROR	Sensor Error — Current sensor error	BMW Battery
IMBALANCE_ERROR	Imbalance Error — Static and dynamic cell imbalance (voltage)	BMW Battery
COMMUNICATION_ERROR	Communication Error — Batcom Error (Timeout), Master-Slave Can Error (Timeout)	BMW Battery
CONTAINER_ERROR	Container/(Room) Error	ErrBits2
SOH_ERROR	SOH Error	ErrBits2
RACK_STING_ERROR	Rack/String Error	ErrBits2
RES_ERR_BITS_2_BIT_3	Reserve ErrBits2 Bit 3	ErrBits2
RES_ERR_BITS_2_BIT_4	Reserve ErrBits2 Bit 4	ErrBits2
RES_ERR_BITS_2_BIT_5	Reserve ErrBits2 Bit 5	ErrBits2
RES_ERR_BITS_2_BIT_6	Reserve ErrBits2 Bit 6	ErrBits2
RES_ERR_BITS_2_BIT_7	Reserve ErrBits2 Bit 7	ErrBits2
RES_ERR_BITS_2_BIT_8	Reserve ErrBits2 Bit 8	ErrBits2
RES_ERR_BITS_2_BIT_9	Reserve ErrBits2 Bit 9	ErrBits2
RES_ERR_BITS_2_BIT_10	Reserve ErrBits2 Bit 10	ErrBits2
RES_ERR_BITS_2_BIT_11	Reserve ErrBits2 Bit 11	ErrBits2
RES_ERR_BITS_2_BIT_12	Reserve ErrBits2 Bit 12	ErrBits2
RES_ERR_BITS_2_BIT_13	Reserve ErrBits2 Bit 13	ErrBits2
RES_ERR_BITS_2_BIT_14	Reserve ErrBits2 Bit 14	ErrBits2
RES_ERR_BITS_2_BIT_15	Reserve ErrBits2 Bit 15	ErrBits2
RUN_FAILED	Running the Logic failed	REFU INVERTER
ERROR	State-Machine in Error-State!	REFU INVERTER
MAX_ALLOWED_START_TIME_FAULT	The maximum start time is passed!	REFU INVERTER
MAX_ALLOWED_STOP_TIME_FAULT	The maximum stop time is passed!	REFU INVERTER
GROUND_FAULT	Ground fault	REFU INVERTER
DC_OVER_VOLTAGE	Dc over voltage	REFU INVERTER
AC_DISCONNECT	AC disconnect open	REFU INVERTER
DC_DISCONNECT	DC DISCONNECT open	REFU INVERTER
GRID_DISCONNECT	Grid shutdown	REFU INVERTER
CABINET_OPEN	Cabinet open	REFU INVERTER
MANUAL_SHUTDOWN	Manual shutdown	REFU INVERTER
OVER_TEMP	Over temperature	REFU INVERTER
OVER_FREQUENCY	Frequency above limit	REFU INVERTER
UNDER_FREQUENCY	Frequency under limit	REFU INVERTER
AC_OVER_VOLT	AC Voltage above limit	REFU INVERTER
BLOWN_STRING_FUSE	Blown String fuse on input	REFU INVERTER
AC_UNDER_VOLT	AC Voltage under limit	REFU INVERTER
UNDER_TEMP	Under temperature	REFU INVERTER
MEMORY_LOSS	Generic Memory or communication error (internal)	REFU INVERTER
HW_TEST_FAILURE	Hardware test failure	REFU INVERTER
OTHER_ALARM	Other alarm	REFU INVERTER
OTHER_WARNING	Other warning	REFU INVERTER
SYSTEM_ERROR	State of Chiller : System Error!	Battery Cooling Unit
GATEWAY_ERROR	State of Chiller : Gateway Error!	Battery Cooling Unit
FILTER_SPOILED	Refrigerant Warning : Filter Spoiled	Battery Cooling Unit
FAN_ERROR	FAN_ERROR	Battery Cooling Unit
PHASE_ERROR	PHASE_ERROR	Battery Cooling Unit
SLAVE_COMMUNICATION_FAILED	LAN Communication to external device failed	MODBUS Bridge

Warning meaning

Table 30. Meaning of the warning displayed
Name	Description	Affected Unit
UNSPECIFIED_WARNING	Unspecified Warning — Cell-config-Error, Slave-count-Error	BMW Battery
LOW_VOLTAGE_WARNING	Low Voltage Error — Cell voltage high	BMW Battery
HIGH_VOLTAGE_WARNING	High Voltage Warning — Cell voltage high	BMW Battery
CHARGE_CURRENT_WARNING	Charge Current Warning — Imax-HW, Imax-SW, I-High (e.g. current dependent on temperature)	BMW Battery
DISCHARGE_CURRENT_WARNING	Discharge Current Warning — Imax-HW, Imax-SW, I-High (e.g. current dependent on temperature)	BMW Battery
CHARGE_POWER_WARNING	Charge Power Warning	BMW Battery
DISCHARGE_POWER_WARNING	Discharge Power Warning	BMW Battery
LOW_SOC_WARNING	Low SOC Warning	BMW Battery
HIGH_SOC_WARNING	High SOC Warning	BMW Battery
LOW_TEMPERATURE_WARNING	Low Temperature Warning — Cell temperature high	BMW Battery
HIGH_TEMPERATURE_WARNING	High Temperature Warning — Cell temperature high	BMW Battery
INSULATION_WARNING	Insulation Warning — I-Diff error (self test error, I-Diff > \|300 mA\|)	BMW Battery
CONTACTOR_WARNING	Contactor Warning (contactor feedback signals)	BMW Battery
SENSOR_WARNING	Sensor Warning — Current sensor error	BMW Battery
IMBALANCE_WARNING	Imbalance Warning — Static and dynamic cell imbalance (voltage)	BMW Battery
COMMUNICATION_WARNING	Communication Warning — Batcom Error (Timeout), Master-Slave Can Error (Timeout)	BMW Battery
CONTAINER_WARNING	Container/(Room) Warning	WarnBits2
SOH_WARNING	SOH_WARNING	WarnBits2
RACK_STING_WARNING	Rack/String Warning — min. 1 string is in error condition (disconnected)	WarnBits2
RES_WARN_BITS_2_BIT_3	Reserve WarnBits2 Bit 3	WarnBits2
RES_ERR_BITS_2_BIT_4	Reserve ErrBits2 Bit 4	WarnBits2
RES_ERR_BITS_2_BIT_4	Reserve ErrBits2 Bit 4	WarnBits2
RES_ERR_BITS_2_BIT_4	Reserve ErrBits2 Bit 4	WarnBits2
RES_ERR_BITS_2_BIT_4	Reserve ErrBits2 Bit 4	WarnBits2
RES_ERR_BITS_2_BIT_4	Reserve ErrBits2 Bit 4	WarnBits2
RES_ERR_BITS_2_BIT_4	Reserve ErrBits2 Bit 4	WarnBits2
RES_ERR_BITS_2_BIT_4	Reserve ErrBits2 Bit 4	WarnBits2
RES_ERR_BITS_2_BIT_4	Reserve ErrBits2 Bit 4	WarnBits2
RES_ERR_BITS_2_BIT_4	Reserve ErrBits2 Bit 4	WarnBits2
RES_ERR_BITS_2_BIT_4	Reserve ErrBits2 Bit 4	WarnBits2
RES_ERR_BITS_2_BIT_4	Reserve ErrBits2 Bit 4	WarnBits2
RES_ERR_BITS_2_BIT_4	Reserve ErrBits2 Bit 4	WarnBits2
WATER_LEVEL_WARNING	Fluid Warning : Water Level Warning	Battery Cooling Unit
FLOW_WARNING	Fluid Warning : Flow Warning	Battery Cooling Unit
LOW_TEMPERATURE_WARNING	Fluid Warning : Low Temperature Warning	Battery Cooling Unit
HIGH_TEMPERATURE_WARNING	Fluid Warning : High Temperature Warning	Battery Cooling Unit
CONDUCTANCE_WARNING	Fluid Warning: Conductance Warning	Battery Cooling Unit
HIGH_PRESSURE_ALARM	Refrigerant Alarm : High Pressure Alarm	Battery Cooling Unit
LOW_PRESSURE_ALARM	Refrigerant Alarm : Low Pressure Alarm	Battery Cooling Unit
HOUSING_OPENED	Refrigerant Alarm : Housing Opened	Battery Cooling Unit
SENSOR_SHORT_OPEN_CIRCUIT	Electrical Alarm : Sensor Short Circuit or Sensor Open Circuit	Battery Cooling Unit
MOTOR_PROTECTION_SWITCH_COMPRESSOR1	Electrical Alarm : Motor Protection Switch Compressor U42	Battery Cooling Unit
MISCELLANEOUS_ALARM_INPUT_E06_E09	Electrical Alarm : Miscellaneous Alarm (Input E06…09)	Battery Cooling Unit
MISCELLANEOUS_WARNING_INPUT_E06_E09	Electrical Alarm : Miscellaneous Warning (Input E06…09)	Battery Cooling Unit

Meaning of the displayed information

Table 31. Meaning of the displayed information
Name	Description	Affected Unit
CHILLER_READY	State of Chiller : Chiller ready!	Battery Cooling Unit
COOLING_REQUIRED	State of Chiller : Cooling is Required	Battery Cooling Unit
CHILLER_RUNNING	State of Chiller : Chiller is Running	Battery Cooling Unit
WARNING_ACTIVE	State of Chiller : Warning is Active	Battery Cooling Unit
ALARM_ACTIVE	State of Chiller : Alarm is Active	Battery Cooling Unit
COMPRESSOR	State Actor : Compressor	Battery Cooling Unit
PUMP	State Actor : Pump	Battery Cooling Unit
HEATER	State Actor : Heater	Battery Cooling Unit
HGB_VALVE	State Actor : HGB Valve	Battery Cooling Unit
FAN	State Actor : Fan	Battery Cooling Unit
DI_VALVE	State Actor : DI Valve	Battery Cooling Unit
DRY_RUN	Fluid Alarm : Dry Run	Battery Cooling Unit
FLOW_ALARM	Fluid Alarm : Flow Alarm	Battery Cooling Unit
LOW_TEMPERATURE_ALARM	Fluid Alarm : Low Temperature Alarm	Battery Cooling Unit
HIGH_TEMPERATURE_ALARM	Fluid Alarm : High Temperature Alarm	Battery Cooling Unit

6.14.3. Visualization

Information on visualization can be found in the FEMS documentation (→ docs.fenecon.de → Monitoring).

6.14.4. Changing system parameters

Changes to the widgets and apps can be made via an industrial VPN router or the internet.

FENECON GmbH must be contacted for all other changes.

6.15. Troubleshooting

6.15.1. Notes on troubleshooting

If the system is used as intended, no malfunctions typical for this energy storage system can occur.

However, faults can occur due to wear, faults in individual components or incorrect operation.

Faults must only be rectified by qualified electricians.

6.15.2. Option — ASD aspirating smoke detector

The [Reset] button is located on the control unit and can be used to reset tripped events (alarm/fault) directly on the ASD 531.

6.16. Fault display

Faults are indicated via the display on the control cabinet, Online Monitoring or can be read out via Modbus/TCP.

Information on accessing FEMS Online Monitoring is contained in the section FEMS. Access to the error display is described in the section Monitoring system operation.

6.16.1. Option — ASD aspirating smoke detector

If a fault event occurs on the ASD 531 aspirating smoke detector, the "Fault" relay is de-energized and the "Fault" display is activated. The fault pattern can be narrowed down in the event of a fault by saving the event code on the SD card.

In the event of a fire, the aspirating smoke detector reacts as follows:

Siren and flashing light.
Power supply shutdown.
Fire alarm and/or fault message can be transmitted to the fire alarm system if integrated externally by the operator.
In Online Monitoring, the Digital inputs widget can be used to read out whether there is a fault in the fire alarm system. The assignment of the components to the digital inputs can be found in the specific circuit diagram.

6.17. Fault list

Table 32. Fault list
Fault	Possible cause	Measure
FEMS is offline	⇒ Section Monitoring of system operation	⇒ Section Monitoring of system operation
Water intrusion		FENECON-Service kontaktieren
Fire/Fire extinguishing (water)
Burglary attempt/vandalism
Failure air conditioning unit
VPN router failure
Mains charger failure
Failure of air sampling smoke detector
Aspirating smoke detector tripped
Flashlight tripped
Siren tripped
Communication failure (via internet)
Electrical malfunction (devices, T-shaped connectors)
Process malfunction (charging/discharging)

6.18. Measures for troubleshooting

6.18.1. Electrolyte leakage

Wear corrosion-resistant chemical protective gloves and protective eyewear.
Spread absorbent agents for absorption, collect the leaked electrolyte for treatment with standard organic solvents and dispose of it (⇒ section: Disposal).
Ventilate the container well.

6.18.2. Lightning strike

The system must be checked after a lightning strike.

6.19. Confirm faults

To confirm faults, contact the FENECON GmbH service department (→ section Maintenance, section Service Address).

7. Maintenance

7.1. Safety instructions

Observe the instructions and safety instructions for maintenance in the component manufacturer’s documentation (→ Appendix, Applicable documents).
Observe the inspection and maintenance intervals for electrical components specified by the manufacturer.
Maintenance work must only be carried out by qualified electricians.
Do not use aggressive cleaning agents.
If maintenance work is to be carried out in the upper part of the container, a suitable working scaffold must be used.#
Remove all personal metal objects from the hands, wrists and neck before commencing work on the system.
The key for the lockable access (maintenance doors) must only be issued to authorized specialist personnel.
It is recommended that the key transfer is recorded.
If electrolyte solution escapes, wear appropriate protective equipment in accordance with the battery manufacturer’s instructions.
Do not short-circuit batteries.
The use of insulated tools in accordance with IEC 60900 is recommended.
Depending on the scope and location of the activities, additional lighting, e.g. mobile (off-grid lighting), may be required.
Modifications to the BMS are prohibited.
Once the maintenance work has been completed, ensure that the protective conductor system is continuous.
Depending on the scope and location of the activities, additional lighting (e. g. mobile, off-grid lighting) may need to be used.
Depending on the scope of the activity, wear cut-resistant, protective gloves.

7.2. Maintenance instructions

Only carry out maintenance work with the Industrial M container switched off and disconnected from the grid.
Maintenance can be carried out via the maintenance doors on the side.
The maintenance door at the front of the container provides access to the distribution box, which contains all the safety devices and the FEMS.
The maintenance door at the rear provides access to the interior of the container and direct access to the batteries.
The protective gratings provide access to the inverters and the climate control unit.

7.3. Regular inspections

The following inspections must be carried out regularly on the system components:

Table 33. Regular inspections
Module	Inspection	Comment	Time interval
System, complete	Visual and functional check		weekly
Cables, T-shaped connectors, connections	Check for loose connections, chafing, damage, corrosion	Immediately rectify any defects found	annually
Electrical system	Have inspection in accordance with DGUV V3 and DIN VDE 0105-100 carried out by qualified personnel	Document inspection	At least every 4 years
Mechanical components	Visual inspection for damage and wear		Every six months
Electrical installation	Visual inspection for damage and wear		annually
Connections, hoses and container openings	Check for leaks		annually
Grid and plant protection	Evaluate error messages		annually
Overvoltage protection	Check indicator		annually
Information and warning signs	Check for wear (legibility), replace if necessary		annually

7.4. Maintenance schedule

Table 34. Maintenance schedule
Component	Measure	Comments	Interval
System	Check components for function. Check components for wear. Check components for dirt and clean if necessary. Check contactors for humming. Visual inspection of main power cable and cable connections. Clean the filter inserts and shorten the interval if necessary. Check the status of the battery packs. Check RCD switch	Equipment with dangerous electrical voltage! Inadequate maintenance of the filters will lead to impermissible heating of the control cabinet!	annually
Fire warning system	Check for proper function.		Every 3 months depending on local regulations
Optical alarm device, acoustic signaling device	Check for function		every 3 months
Safety-relevant electrical components	Check for safety. Check for function. Replace if necessary	Replace according to manufacturer’s instructions. Document exchange.	annually
Safety and protective devices	visual and functional inspection		annually
Inverter	Check the surge protector on the AC/DC side Check the function of the insulation		annually
Circuit-breaker	Check function of tripping mechanism	with TD 310 tester	annually

7.4.1. Measurements

Qualified electricians are required for the measurements.
The provisions of the current installation and service instructions for the individual components must be observed (→ Appendix, Applicable documents).

7.5. Component maintenance

Electrical voltage

Death or serious injury to the body and limbs due to electric shock on contact with terminals and conductors that are not insulated for maintenance purposes due to their design

When working on live equipment, the application of appropriate working procedures in accordance with IEC 60900 and the exclusive use of insulated tools must be enforced in order to reduce the risk of injury.
Remove all personal metal objects from the hands, wrists and neck before commencing work on the system.

Electromagnetic fields/radiation inside the container

Death or serious injury to the body and limbs due to malfunction of medical implants (e. g. pacemakers) caused by high electrical currents and the associated electromagnetic waves.

Working on an open container is prohibited for persons with implanted medical components.
After replacing components and maintenance work, the continuity of the earthing must be checked.

Non-compatible components

Death or serious injury to the body and limbs due to electric shock.

Only use original parts or spare parts approved by the manufacturer.
Information on spare parts is contained in the component manufacturer’s documentation and must be observed.

Incorrect earthing

Death or serious injury to the body or limbs from electric shock due to incorrect earthing.

After replacing components and maintenance work, the continuity of the earthing must be checked.

Maintenance instructions for the components can be found in the manufacturer’s documentation (→ Appendix, Applicable documents).

7.5.1. Replacing and changing batteries/battery packs

The FENECON Service must be contacted to change batteries/battery packs.

7.6. FENECON-Service

If you have any technical questions, please contact the FENECON Service:

FENECON GmbH
Gewerbepark 6
94547 Iggensbach
Germany

Phone: +49 (0) 9903 6280-0

8. Transportation

8.1. Safety instructions

Transportation is carried out as hazardous goods transport.
The transportation of lithium-ion batteries "UN3536" is subject to the ADR regulations.
A "Material Safety Data Sheet" (MSDS) is required for transportation. Special regulations must be observed. A prerequisite for the transportability of battery cells of the batteries is proof of passing the test in accordance with the test regulations of the UN manual "Tests and Criteria, Part III, Subsection 38.3 (UN Test)".
Hazardous goods labeling must be affixed to all sides of the container during shipping.
When transporting batteries, the current laws, regulations and standards must be observed (e. g. German Dangerous Goods Transportation Act (GGBefG)).
Upon receipt of the delivery, it must be checked immediately for completeness and transport damage.
Use personal protective equipment (depending on the boundary conditions) (minimum requirement: protective headgear and protective footwear).
The electrical connections must be disconnected before transportation.
Before lifting, check that the attachment points and lifting gear are correctly seated.
The container should only be transported with an SoC of over 30 %.

8.2. Change of location

There are no plans to relocate the container after commissioning.

If a change of location is planned, FENECON GmbH must be consulted beforehand.

When changing location, the container can be transported using a suitable industrial truck or hoist.

8.2.1. Transport preparations

Disconnect external connections

First check that all external supply lines are de-energized before disconnecting them.
Depending on the setup, the following connections must be disconnected: Earthing, AC main supply, network/internet, AC control voltage, master-slave communication and external measurement.

Lock maintenance door

To be able to press the maintenance door, the help of a second person may be required for the next step.

Close both maintenance doors.
Check that the two maintenance doors on both sides are properly closed and latched.
Lock both maintenance doors with the key.

Lifting the container

Pick up and lift the container either with a hoist (e. g. crane) or a forklift truck at the lifting points provided.

Observe the weight specifications in the transport documents during this process. Depending on the selected configuration, the system can weigh up to 10 tons. The following lifting instructions must be observed under all circumstances to protect the container from damage.

Lifting the container with a forklift truck

A fork length of at least 2500 mm is required for transportation with a forklift truck.

Image 24. Lifting points — Forklift trucks

Lift container with a crane

Transportation with a crane is possible via the following three variants.

Table 35. Transport variants with a crane
Variant	Image	Notes
1		An angle of 60° must be maintained for correct transportation. Chains with a length of 3860 mm are to be used for this.
2		An angle of 60° must be maintained for correct transportation. The chain length must be at least equal to the container, i. h. 2990 mm.
3		With the traverse shown, it is possible to transport the container at a 90° angle.

Declaration of batteries

Further information on the declaration of batteries can be found in the MSDS (Annex, Applicable documents).

9. Decommissioning and disassembly

9.1. Safety instructions — Disassembly

Wear the following suitable PPE for all work:
- Protective footwear
- Cut-resistant protective gloves
- Protective eyewear
Cordon off a wide area around the system to be dismantled.
Dismantling work must only be carried out by qualified electricians/maintenance personnel.
Only carry out dismantling work when the system is shut down. Only trained personnel must carry out the work.
The power supply to the storage system is interrupted and secured against being switched on again.
Before starting disassembly, secure all components to be removed against falling, tipping over or moving.
Use transport aids. Use existing attachment points for transporting the system parts.
Observe the dismantling instructions by the component manufacturer (⇒ Appendix, Applicable documents).
Proceed from top to bottom when dismantling.
Observe the current laws, regulations and standards when transporting the battery modules (e. g. Hazardous Goods Transportation Act — GGBefG).
The slide-in battery modules are removed by service personnel and transported by hazardous goods transport.

Residual risks:

Faulty operation

Incorrect operation can lead to serious injury or death.
Before switching off the individual components, observe the specifications and instructions in the operating/assembly instructions of the respective manufacturer.

Sharp and pointed edges

Injuries to the body or limbs caused by sharp and pointed edges on parts of the equipment.
Always wear suitable protective equipment (cut-resistant protective gloves, protective footwear, protective eyewear) when working on the machine/electrical energy storage!

Misoperation can lead to material damage.

Before switching off the system, make sure that there are no unauthorized persons in the danger zone.

9.2. Final decommissioning

9.2.1. Requirements - Final decommissioning

The system is switched off.
The power supply is interrupted and secured against being switched on again.
The operator’s information technology equipment has been dismantled and removed from the system.
The air conditioning unit is switched off.
The power supply to the air conditioning unit is interrupted and secured against being switched on again.

9.3. Recommended procedure — Disassembly

Disconnect the supply cable from the disconnecting device; first disconnect the power conductors, then the grounding cables.
Check that the power supplies are disconnected from the system and the air conditioning unit and that all systems are depressurized.
Empty all pipes and hoses and dispose of the contents in accordance with the regulations (⇒ section: Disposal).
Empty all refrigerant containers and dispose of liquids in accordance with regulations (⇒ section: Disposal).
Take the UPS out of operation.
Remove the fuse/bridge of the fire alarm system.
Remove the fuses from the Weidmüller devices.
Remove the RJ45 cable from the connection to the operator network.
Remove the RJ45 cable between the control cabinet and the energy meter.
Dismantle the Janitza devices.
Remove the AC connection.
Remove earthing.
Disconnect and remove the connection cable to the Wöhner device.
Remove the copper rings on the air conditioning hoses that serve as the connection between the battery and the cooling manifold.
Remove the C2C components.
Remove the grounding cable from the battery.
Remove the battery locking caps.
Place the HV cover cap on the batteries.
Remove the bolts from the batteries.
Remove the batteries using a forklift truck.

9.4. Disposal

Observe local regulations and information from the safety data sheets when disposing auxiliary and operating materials
For disposal, also observe the information in the individual operating instructions for the respective components.
If in doubt about the disposal method, contact the manufacturer or the local waste disposal company.

After proper disassembly, recycle the dismantled individual parts:

The electrical energy storage system must not be disposed of with normal household waste.
Scrap metallic materials.
Recycle plastic elements.
Dispose of the remaining components sorted according to material properties.

Electrical waste, electronic components, lubricants and other auxiliary materials are subject to hazardous waste treatment and must only be disposed of by authorized specialist companies.

Observe the following points when disposing of the electrical energy storage system or its components, as well as the operating and auxiliary materials:

Comply with local, national regulations.
Observe company-specific specifications.
Dispose of operating and auxiliary materials in accordance with the applicable safety data sheets.
Dispose of packaging material in an environmentally friendly manner.

Batteries

Do not expose the battery modules to high temperatures or direct sunlight.
Do not expose the battery modules to high humidity or corrosive atmospheres.
For special instructions on the disposal of used batteries, please contact contact FENECON Service.

10. Declaration of Conformity

11. Register

11.1. Applicable documents

All supplier documentation can be accessed via the bill of materials.

No.

Component

Manufacturer documentation

KACO blueplanet gridsave 92.0 kVa

Available online:
https://kaco-newenergy.com/de/produkte/blueplanet-gridsave-920-137-tl3-s Manual:
https://kaco-newenergy.com/index.php?eID=dumpFile&t=f&f=11094&token=6de997407a90130deee1fd8bc80e13072d331341

Climate control unit by Envicool
(if installed)

Available online:
https://www.envicool.net/product/detail150.html

EWON Cosy Router

Available online:
https://www.wachendorff-prozesstechnik.de/downloads/fernwartung-und-fernwirken/

Container ESS10 — Circuit diagram

FENECON GmbH

Container ESS10 — List of wear and spare parts

FENECON GmbH

Container ESS10 — Declaration of Conformity (EU)

FENECON GmbH

Container ESS10 — Dimensioning of cables and wires

FENECON GmbH

FEMS — Technical Documentation

FENECON GmbH

HV Battery BEV SE09 — Safety Data Sheet

BMW

REFUstore 88k
(if installed) — Data sheet

REFU Elektronik GmbH

KACO gridsave 92 kVa
(if installed) — Data sheet

KACO new energy GmbH

Integrated climate control unit RFCS-SON-016000-C-L-R25-3-IW — Data sheet

HYDAC INTERNAIONAL GmbH

Coolant R-134a — Safety Data Sheet

Westfalen AG

Fire alarm system — Aspirating Smoke Detector (ASD) — Data sheet

Hekatron Vertriebs GmbH

Breaker RE-NA003 — Manual

TELE Haase Steuergeräte GmbH

Cable sealing — Installation Instruction

Roxtec