FENECON Home 20 & 30 assembly and operating instructions

1. About these instructions

Personnel must have carefully read and understood these Assembly and Service Instructions before starting any work.

1.1. Manufacturer

FENECON GmbH
Brunnwiesenstraße 4
94469 Deggendorf
Germany

Phone +49 (0) 9903 6280 0
Fax +49 (0) 9903 6280 909
E-mail info@fenecon.de
Internet www.fenecon.de

1.2. Formal information on the operating instructions

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

1.3. Version/revision

Table 1. Version/revision
Version/Revision	Change	Date	Name
2023.10.1	Draft initial creation	09.10.2023	FENECON TK
2023.11.1	Extension to include chapters 10-17	16.11.2023	FENECON TK
2023.12.1	Fault rectification	05.12.2023	FENECON TK
2024.01.1	Fault rectification/extension of chapter 11	10.01.2024	FENECON TK
2024.04.1	Fault rectification/extension to include chapter 11.2	19.04.2024	FENECON TK
2024.07.1	Adaptation of chapter 10	15.07.2024	FENECON PM
2024.10.1	Adaptation of chapter 11	02.10.2024	FENECON MR

1.4. Presentation conventions

Table 2. Presentation conventions

This symbol indicates an imminent danger. If this danger is not avoided, it can lead to death or serious injury.

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

This symbol indicates a warning. Failure to observe this warning may result in damage and/or destruction of the system.

This symbol indicates a note. It is recommended that the note be observed.

1.5. Structure of warning notices

If observed, warnings protect against possible personal injury and damage to property and use the signal word to classify the magnitude of the danger.

Source of danger
Possible consequences of non-compliance
- Measures for avoidance/prohibitions

Danger sign
The danger sign indicates warnings that warn of personal injury test.

Source of danger
The source of danger indicates the cause of the hazard.

Possible consequences of non-compliance
The possible consequences of ignoring the warning are, for example, crushing, burns or other serious injuries.

Measures/Prohibitions
Measures/prohibitions include actions that must be taken to avoid a hazard (e.g. stopping the drive) or that are prohibited to avoid a hazard.

1.6. Terms and abbreviations

The following terms and abbreviations are used in the Assembly and Service Instructions:

Table 3. Terms and abbreviations
Term/Abbreviation	Meaning
AC	Alternating Current
BHKW	Combined heat and power plant (CHP)
BMS	Battery Management System
DC	Direct Current
EMS	Energy Management System
(Smart-)Energy-Meter	Electricity meter for the Inverter at the grid connection point
FEMS	FENECON Energiemanagementsystem
IBN	Commissioning
MPPT	Maximum Power Point Tracking Finder for the maximum power point
NAP	Grid connection point
PE	Protective conductor
PV	Photovoltaic
RSE	Ripple control receiver
RTE	Round-Trip-Efficiency (RTE) System efficiency Ratio of discharged to charged energy quantity
SG-Ready	Smart-Grid-Ready — Preparation of the Heat pump for external control
SOC	State of Charge State of Charge The available capacity in a battery, expressed as a percentage of the nominal capacity.
SOH	State of Health — State of ageing
VDE	Verband der Elektrotechnik Elektronik Informationstechnik e. V.
Widget	Component of online monitoring

1.7. Scope of delivery

Table 4. Scope of delivery
Item	Component	Number	Comment
1	FENECON Home 20 & 30-Inverter	1	Depending on version, 20 or 30 kW
2	FENECON Home 20 & 30-EMS Box (incl. FENECON Energiemanagementsystem )	1
3	FENECON Home 20 & 30-Parallel Box	1	optional for 2nd FENECON Home 20 & 30 battery tower
4	FENECON Home 20 & 30-Extension Box	1	optional for 3rd & 4th FENECON Home 20 & 30 battery tower
5	FENECON Home 20 & 30-BMS Box	1	each FENECON Home 20 & 30-Battery Tower
6	FENECON Home 20 & 30-Battery module		depending on the capacity ordered
7	FENECON Home 20 & 30-Base	1	per FENECON Home 20 & 30-battery tower

Table 5. Documents
Component	Comment
Operating instructions FENECON Home 20 & 30	Instructions for the installer
Quick start guide FENECON Home 20 & 30	Quick start guide for the installer
Operating instructions FENECON Home 20 & 30	Instructions for the user/end customer
Brochure FENECON Home 20 & 30

1.8. Applicable documents

All documents listed in the appendix to these operating instructions must be observed. See 15.1 Applicable documents

1.9. Availability

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

If the product is passed on to another person, the operator passes these operating instructions on to that person.

2. Security

2.1. Intended use

The {ems-name-2} is a power storage system consisting of various modules. These include in particular a BMS (battery management system), the FENECON Energiemanagementsystem (FEMS), battery modules and bases. All processes of the electricity storage system are monitored and controlled by the FEMS.

Any other use is not an intended use.

2.2. Reasonably foreseeable misuse

All applications that do not comply with the intended use are considered misuse.

Work on live parts is generally not permitted. Electrical work may only be carried out by qualified electricians.

The following safety rules must be observed for all work on electrical components:

Unlock
Secure against restarting
Determine absence of voltage
Earthing and short-circuiting
Cover or cordon off neighboring live parts

Non-compliance with safety rules is considered a reasonably foreseeable misuse.

Other misapplications include in particular:

improper transportation, installation, assembly, trial operation or operation can be damaged by the product,
Changes to the specified performance data, including the individual components,
Change or deviation of the specified connected loads,
functional or structural changes,
Operating the product in a faulty or defective condition,
improper repairs,
operation without protective devices or defective protective devices,
Disregarding the information in the original operating instructions,
unauthorized access via the control unit or the network,
Fire, open light and smoking in the vicinity of the storage system,
inadequate ventilation,
Unauthorized changes and actions to the storage system,
Use as mobile energy storage
Direct use in a PV system (integration via an AC-coupled Grid is possible)

2.3. Area of application — electromagnetic compatibility (EMC)

The low-voltage equipment is intended for use in the following areas of application:

General information (public)

Use in other areas of application is not in accordance with the intended use.

2.4. Qualification of the 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.

2.4.1. Qualified electricians

Skilled electrical personnel include persons who:

are able to carry out work on electrical systems due to their technical training, knowledge and experience as well as 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.

2.4.2. Service staff

Service personnel include the manufacturer’s personnel or specialist personnel instructed and authorized by FENECON GmbH, who must be requested by the operator to work on the system (e.g. Assembly, repair, maintenance, work on the batteries, etc.).

2.5. General information on the FENECON Home 20 & 30 storage system

The product must be positioned in such a way that sufficient room for movement can be guaranteed for service and maintenance personnel in every phase of the product’s life. The service life of the product depends on the service life and maintenance intervals carried out by qualified personnel. The service life is particularly influenced by preventive maintenance and servicing.

The battery modules may only be installed and the cable connections made by qualified electricians.
The power storage system may only be used under the specified charging/discharging conditions (see chapter Technical data).
Do not immerse the power storage system in water, moisten it or touch it with wet hands.
Keep your distance from water sources
Keep the power storage system away from children and animals
The power storage system can cause electric shock and burns due to short-circuit currents.
Do not heat the electricity storage system
Do not attempt to crush or open battery modules
Do not use battery modules that have fallen down.
Set up/store the electricity storage system in cool locations
Do not use the power storage system if changes in color or mechanical damage are detected during Assembly, charging, normal operation and/or storage.
Eye and skin contact with leaked electrolyte solution must be avoided. After contact with eyes or skin, rinse/clean immediately with water and seek medical attention. Delayed treatment can cause serious damage to health.
Do not expose the power storage system to naked flames.
Do not set up or use the power storage system near naked flames, heaters or high-temperature sources.
The heat can cause insulation to melt and the safety ventilation to be damaged. This can lead to overheating, explosion or fire in the battery modules.
If the protective devices are damaged, abnormal charging currents and voltages can cause a chemical reaction in the battery modules, leading to overheating, explosion and even fire in the battery modules.

Do not connect the plug contacts of the BMS box in reverse.
Do not short-circuit battery modules.
Do not touch the battery module connectors (+) and (-) directly with a wire or metal object (e.g. metal chain, hairpin). In the event of a short circuit, excessive current can be generated, which can lead to overheating, explosion or fire of the battery modules.
Do not throw or drop parts of the power storage system.
Do not apply any mechanical force to the power storage system. The battery modules can be damaged and short circuits can occur, which can lead to overheating, explosion or fire in the battery modules.
No soldering work may be carried out on the power storage system. Heat introduced during soldering can damage the insulator and the safety ventilation mechanism and lead to overheating, explosion or fire of the battery modules.
The battery modules must not be dismantled or modified. The battery modules contain a safety mechanism and a protective device, damage to which can lead to overheating, explosion or fire of the battery modules.
Only use the battery modules as intended. Improper use can lead to overheating, explosion or fire of the battery modules.
Read the instructions for installation and operation to avoid damage due to incorrect operation.
The battery modules may have insufficient cell voltage after a long storage period. If this is the case, please contact the service department
Do not expose the battery modules to high voltages.
Place the battery modules on level surfaces.
Do not place any objects on the FENECON Home 20 & 30 battery tower.
Do not step on the power storage system.

2.5.1. Installation, operation and maintenance

When carrying out maintenance, servicing and cleaning work, ensure that the product is switched off in a safe manner and secured against being switched on again. In addition, all instructions in this operating manual must be followed.

Always observe the following safety instructions when installing, operating or maintaining the battery modules:

Installation/maintenance work and cable connections may only be carried out by qualified personnel (electricians).
During maintenance work, stand on dry insulating objects and do not wear any metal objects (e.g. watches, rings and necklaces) during maintenance work/operation.
Use insulated tools and wear personal protective equipment.
Do not touch two charged contacts with a potential difference.
Measure the battery voltage with a multimeter and ensure that the output voltage is 0 V in off mode.
If an anomaly is detected, switch off the battery tower immediately.
Only continue the maintenance work after the causes of the anomaly have been eliminated.
The battery modules can cause an electric shock and burns due to high short-circuit currents.

2.5.2. Fire protection

Do not expose the power storage system to direct sunlight.
Avoid contact with conductive objects (e.g. wires).
Keep heat and fire sources, flammable, explosive and chemical materials away from the power storage system.
Do not dispose of the FENECON Home 20 & 30 battery modules in a fire due to the risk of explosion.

2.5.3. Storage

Area: Fireproof indoors/outdoors with suitable weather protection.
Air temperature: -20 °C to 40 °C
Relative humidity: max. 50 % at +40 °C.
Do not store battery modules (lithium iron phosphate batteries) with flammable or toxic objects.
Store battery modules with safety defects separately from undamaged battery modules.

Storage longer than 6 months
Possible consequences: Deep discharge of the cells/defective battery.

External charging of the battery modules to nominal voltage — forced charging must be carried out, which is controlled via the FEMS. This may only be carried out by the manufacturer or by a company commissioned by the manufacturer.

2.5.4. Charging

Keep the SOC of the battery module below 30 % for shipping and charge the battery module if it has been stored for longer than 6 months.

2.6. Operating resources

2.6.1. Electrolyte solution of the battery modules

Electrolyte solution is used in the battery modules (lithium iron phosphate).
The electrolyte solution in the battery modules is a clear liquid and has a characteristic odor of organic solvents.
The electrolyte solution is flammable.
The electrolyte solution in the battery modules is corrosive.
Do not inhale the vapors.
If the electrolyte solution is swallowed, induce vomiting.
Leave the contaminated area immediately after inhaling the vapors.
Eye and skin contact with leaked electrolyte solution must be avoided.
Contact with electrolyte solution can cause severe burns to the skin and damage to the eyes.
- After skin contact: Immediately wash skin thoroughly with neutralizing soap and consult a doctor if skin irritation persists.
- After eye contact: Immediately flush eye(s) with running water for 15 minutes and seek medical advice.

Delayed treatment can cause serious damage to health.

2.7. Residual risk

Warning of electrical voltage

Work on electrical equipment may only be carried out by qualified electricians from the manufacturer or by specially authorized, trained electricians and in compliance with the safety regulations.
After disconnecting the power supply, maintenance work may only be carried out after 5 minutes.
The customer must provide a mains disconnection device for the electrical power supply.

Unknown fault messages

Unknown faults and attempts to rectify them can lead to damage to the product.
If there is a fault that is not included in the fault list, inform customer service.

All doors, emergency exits and areas around the storage system must remain clear; do not obstruct escape routes!

The condition of the floor outside the storage system is the responsibility of the user. However, the housing is sealed so that no electrolyte can escape.

2.8. Behavior in emergency situations

Proceed as follows to set up the battery tower:

Disconnect the power storage system from the grid
Remove from the danger zone
Secure the danger zone
The responsible persons inform
Alert a doctor if necessary

2.9. Pictograms

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

Table 6. Pictograms
Pictogram	Meaning	Position
	Warning of dangerous electrical 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.
	General information warning sign
	Battery charging hazard warning	Pictogram on the housing and marking of components that do not clearly indicate that they contain electrical equipment that may pose a battery charging hazard
	No naked flames; fire, naked sources of ignition and smoking prohibited	Pictogram on the enclosure and marking of components which do not clearly indicate that they contain electrical equipment which may give rise to a risk from naked flames, fire, naked sources of ignition and smoking
	Separate collection of electrical and electronic equipment	On the batteries
	Note the instructions
	Use head protection
	Use foot protection
	Use hand protection

2.10. Personal protective equipment

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

safety shoes
Protective gloves, cut-resistant if necessary
Safety glasses
Safety helmet

2.11. Spare and wear parts

The use of spare and wear parts from third-party manufacturers can lead to risks. Only original parts or spare and wear parts approved by the manufacturer may be used. The instructions for spare parts must be observed. Further information can be found in the wiring diagram.

Further information must be requested from the manufacturer.

3. Technical data

3.1. General information

Table 7. Technical data — General information
designation		value/size
Installation/environmental conditions	IP classification	IP55
	Operating altitude above sea level	≤ 2,000 m
	Installation/operating temperature	-30 °C to +60 °C
	Relative humidity (operation/storage)	50 % non-condensing (up to 90 % permissible for short periods)
	Battery operating temperature	-10 °C to +50 °C
	Optimal operating temperature of the battery	15 °C to +30 °C
	Cooling	adaptive fan
	Loudness	< 45 dB
	Max. Grid connection	120 A
Certification/guideline	Overall system	CE
	Inverter	VDE 4105:2018-11 Gate generator type A 1.1
	Battery	UN38.3 VDE 2510-50

3.2. Technical data — Inverter

Table 8. Technical data — Inverter
Naming		Value/size
Inverter model		FHI-20-DAH	FHI-30-DAH
DC-PV connection	Max. DC input power	30 kW_p	45 kW_p
	MPP tracker	2	3
	Numbers of inputs per MPPT	2 (MC4)	2 (MC4)
	Starting voltage	200 V	200 V
	Max. DC operating voltage in V	950 V	950 V
	Max. DC input voltage in V	1000 V	1000 V
	MPPT voltage range	200 V to 850 V	200 V to 850 V
	Nominal input voltage in V	620 V	620 V
	Max. Input current per MPPT	30 A	30 A
	Max. Short-circuit current per MPPT	38 A	38 A
AC connection	Grid connection	400/380 V, 3L/N/PE, 50/60 Hz	400/380 V, 3L/N/PE, 50/60 Hz
	Max. Output current	29 A	43.3 A
	Max. Input current	45 A	50 A
	Nominal apparent power output	20,000 VA	29,900 VA
	Max. Apparent power output	22,000 VA	29,900 VA
	Max. Apparent power from mains	30,000 VA	33,000 VA
	Cos(φ)	-0.8 to +0.8	-0.8 to +0.8
Back-up Power	Back-up power capability	Yes	Yes
	Grid shape	400/380 V, 3L/N/PE, 50/60 Hz	400/380 V, 3L/N/PE, 50/60 Hz
	Back-up power supplied Loads (per phase)	20.000 VA (6,666 VA)*	29,900 VA (9,966 VA)*
	Shift load	3,333 VA	3,333 VA
	Black start	Yes	Yes
	Solar Recharging	Yes	Yes
Efficiency	Max. Efficiency	98.0 %	98.0 %
Efficiency	European Efficiency	97.5 %	97.5 %
General information	Width \| Depth \| Height	520 \| 220 \| 660 mm	520 \| 220 \| 660 mm
	Weight	48 kg	54 kg
	Topology	not insulated	not insulated

also in mains parallel operation

3.2.1. Dimensions

The dimensions are given in mm.

Figure 1. Inverter — Dimensions

3.3. Technical data — FENECON Home 20 & 30-EMS-Box

Table 9. Technical data — FENECON Home 20 & 30-EMS-Box
Naming	Value/Size
Operating voltage DC	224 V to 672 V
Max. Current (battery)	50 A
Operating temperature	-10 °C to 50 °C
Protection class	IP55 (plugged in)
Input voltage	100 V to 240 V/1.8 A/50 Hz to 60 Hz
width \| depth \| height	506 \| 401 \| 157 mm
Weight	12 kg
installation	stackable

3.3.1. Dimensions

The dimensions are given in mm.

Figure 2. Dimensions — EMS box

3.3.2. EMS-Box — Pin assignment

Figure 3. Pin assignment — EMS-Box

Table 10. Pin assignment — EMS-Box
Item	Description
1	Battery connection to the Inverter (MC4-Evo stor)
2	Communication output for parallel connection of several batteries
3	Customer network connection (LAN) RJ45 (network cable not included)
4	Communication Inverter, relay outputs; digital inputs (16-pin connector)
5	Power supply FEMS box; potential-free contacts (max. 10 A, measured) (10-pin plug)
6	Earth connection
7	For future applications (not assigned)

3.4. Technical data — FENECON Home 20 & 30 parallel box (optional)

Table 11. Technical data — Parallel box
Naming	Value/Size
Operating voltage DC	224 V to 672 V
Max. Current (battery)	50 A
Operating temperature	-10 °C ~ 50 °C
Protection class	IP55 (plugged in)
Width \| Depth \| Height	506 \| 401 \| 157 mm
Weight	10 kg
installation	stackable

3.4.1. Dimensions

The dimensions are given in mm.

Figure 4. Dimensions . Parallel box

3.4.2. Parallel box — Pin assignment

Figure 5. Pin assignment — Parallel box

Table 12. Pin assignment — Parallel box
Item	Description
1	Battery connection to the Inverter (MC4-Evo stor)
2	Communication output for parallel connection of several battery towers
3	Communication input for parallel connection of several battery towers
4	Battery connection for additional battery towers (MC4-Evo-stor)
5	Earthing connection

3.5. Technical data — FENECON Home 20 & 30 extension box (optional)

Table 13. Extension box (optional) — Technical data
Naming	Value/Size
Operating voltage DC	224 V to 672 V
Max. Current (battery)	50 A
Operating temperature	-10 °C ~ 50 °C
Protection class	IP55 (plugged in)
Width \| Depth \| Height	506 \| 401 \| 157 mm
Weight	9 kg
installation	stackable

3.5.1. Dimensions

The dimensions are given in mm.

Figure 6. Dimensions — Extension box

3.5.2. Extension box — Pin assignment

Figure 7. Pin assignment — Extension box

Table 14. Pin assignment — Extension box
Item	Description
1	Battery connection to EMS box in parallel (MC4-Evo stor)
2	Communication output for parallel connection of several battery towers
3	Communication input for parallel connection of several battery towers
4	Earthing connection

3.6. Technical data — FENECON Home 20 & 30-BMS-Box

Table 15. Technical data — BMS-Box
Naming	Value/Size
Maximum operating voltage range	224 V to 672 V
Maximum output/input current	50 A
Optimum operating temperature	15 to 30 °C
Operating temperature range	-20 to 55 °C
Protection class	IP55 (plugged in)
Width (incl. side panel) \| Depth \| Height	506 \| 401 \| 143 mm
Weight	13kg
installation	stackable/wall mounting

3.6.1. Dimensions

The dimensions are given in mm.

Figure 8. Dimensions — BMS box

3.7. Technical data — FENECON Home 20 & 30 battery module

Table 16. Technical data — Battery module
Naming	Value/Size
Usable capacity	62.4 Ah/2.80 kWh
Rated voltage	44.8 V
Output voltage range	39.2 V to 50.4 V
Battery operating temperature range	-20 °C to +55 °C
Storage temperature range (over 7 days)	-30 °C to +60 °C
Storage temperature range (over 30 days)	-20 °C to +55 °C
Storage temperature range (cumulative up to 270 days)	-10 °C to +45 °C
Protection class	IP55 (plugged in)
Weight	30 kg
Installation	Stackable
Parallel connection	4 battery towers in parallel
Cooling	natural cooling
Shipping capacity	< 30 % SOC
Module safety certification	VDE 2510/IEC62619
UN transportation test standard	UN38.3
Relative humidity during storage	5 % to 95 %

Storage longer than 12 months
Possible consequences: Deep discharge of the cells Defect of the battery module.
- External charging of the battery modules to nominal voltage. This may only be carried out by the manufacturer or a company authorized by the manufacturer.

3.7.1. Electrical parameters of the battery modules

With number of battery modules from 5 to 7

Table 17. Electrical parameters — Number of battery modules 4S to 6S (5 to 7 modules in series)
Parameter	Value/size
Number of modules	5S	6S	7S
Nominal capacity	14.0 kWh	16.8 kWh	19.6 kWh
Width incl. side panel	506 mm
Depth	401 mm
Height	1120 mm	1263 mm	1406 mm
Weight	187 kg	217 kg	247 kg
Nominal voltage	224.0 V	268.8 V	313,6 V
Output voltage range	196 V ~ 252 V	235.2 V ~ 302.4 V	274.4 V ~ 352.8 V
Maximum continuous charging/discharging power	11.20 kW	13.44 kW	15.68 kW

With a number of battery modules from 8 to 11

Table 18. Electrical parameters — Number of battery modules 7S to 10S (8 to 11 modules in series)
Parameter	Value/Size
Module	8S	9S	10S	11S
Nominal capacity	22.4 kWh	25.2 kWh	28.0 kWh	30.8 kWh
Width incl. side panel	506 mm
Depth	401 mm
Height	1549 mm	1692 mm	1835 mm	1978 mm
Weight	277 kg	307 kg	3370 kg	367 kg
Rated voltage	358.4 V	403.2 V	448.0 V	492.8 V
Output voltage range	313.6 V ~ 403.2 V	352.8 V ~ 453.6 V	392.0 V ~ 504.0 V	431.2 V ~ 554.4 V
Maximum continuous charging/discharging power	17.92 kW	20.16 kW	22.40 kW	24.64 kW

With a number of battery modules from 12 to 15

Table 19. Electrical parameters — Number of battery modules 7S to 10S (12 to 15 modules in series)
Parameter	Value/Size
Module	12S	13S	14S	15S
Nominal capacity	33.6 kWh	36.4 kWh	39.2 kWh	42.0 kWh
Width incl. side panel	506 mm
Depth	401 mm
Height	2121 mm	2264 mm	2407 mm	2550 mm
Weight	397 kg	427 kg	457 kg	487 kg
Rated voltage	537.6 V	582.4 V	627.2 V	672.0 V
Output voltage range	470.4 V ~ 604.8 V	509.6 V ~ 655.2 V	548.8 V ~ 705.6 V	588.0 V ~ 756.0 V
Maximum continuous charging/discharging power	26.88 kW	29.12 kW	30.00 kW	30.00 kW

3.8. Technical data — Base

Table 20. Technical data — Base
Naming	Value/Size
Width (incl. side panel) \| Depth \| Height	506 \| 365 \| 84 mm
Weight	6 kg
Protection class	IP55 (plugged in)
Installation	stackable

3.8.1. Dimensions

The dimensions are given in mm.

Figure 9. Dimensions — Base

4. General information

The FENECON Home 20 & 30 is a Back-up power capability Battery energy storage system that can build its own household power grid. Lithium iron phosphate batteries (LiFePO4) are used in this modular system for storing electrical energy.

4.1. System configuration — General overview

Figure 10. System — schematic diagram with optional components (shown without protective device)

4.2. System design: Variants with Back-up Power

4.2.1. Standard setup with Back-up Power

Figure 11. Standard setup with Back-up Power (shown without protective device)

Table 21. Standard setup with Back-up Power
Item	Description
1	Grid
2	2 bi-directional meter
3	Smart meter
4	Inverter
5	PV system
6	FENECON Home 20 & 30
7	Consumption (emergency power supply)
8	Consumption (not supplied with emergency power)

Within the emergency power function, the Inverter acts as its own grid creator and sets up its own 3-phase system for the separate emergency power branch (see Technical data). Compared to the public grid system, the Grid shape of the emergency power mode has a lower "buffer effect" with regard to load peaks, starting currents, DC components and strongly fluctuating Loads. Due to the limited power of the Inverter, such loads are only possible within certain limits.

4.2.2. System structure with additional PV generator

Figure 12. System structure with additional PV generator (shown without protective device)

Table 22. System structure with additional PV generator
Item	Description
1	Grid
2	2 bi-directional meter
3	Smart meter
4	3-phase sensor or with PV inverter app
5	PV Inverter
6	Additional PV system
7	FENECON Home 20 & 30
8	PV system
9	Inverter
10	Consumption (not supplied with emergency power)
11	Consumption (emergency power supply)

4.2.3. System structure as an AC system

Figure 13. System structure as AC system (shown without protective device)

Table 23. System structure as an AC system
Item	Description
1	Grid
2	2 bi-directional meter
3	Smart meter
4	3-phase sensor or with PV inverter app
5	PV Inverter
6	PV system
7	FENECON Home 20 & 30
8	Inverter
9	Consumption (emergency power supply)
10	Consumption (not supplied with emergency power)

4.2.4. System with manual emergency power changeover

Figure 14. System with manual emergency power changeover (shown without protective device)

Table 24. System with manual emergency power changeover
Item	Description
1	Grid
2	2 bi-directional meter
3	Smart meter
4	Inverter
5	PV system
6	FENECON Home 20 & 30
7	Manual Back-up Power switch
8	Consumption (emergency power supply)

4.2.5. Required components

Depending on the system configuration, a maximum of the following components are required. When connecting up to four battery towers in parallel, ensure that the same number of battery modules are installed in each battery tower.

Table 25. System configuration — Required components
Number of battery towers	Number of battery modules max.	BMS box (per tower)	EMS box	Parallel box	Extension box
1	15	1	1	-	-
2	30	1	1	1	-
3	45	1	1	1	1
4	60	1	1	1	2

Figure 15. Structure FENECON Home 20 & 30 storage system with four battery towers

5. Assembly preparation

5.1. Scope of delivery

5.1.1. Inverter FENECON Home 20 & 30

Table 26. Scope of delivery — FENECON Home 20 & 30-Inverter
illustration	number	designation
	1	FENECON Home 20 & 30-Inverter
	1	Wall bracket
	1	Meter with transducer (transducers are already mounted on the meter)
	1	Covering the communication connection
	4(6)	MC4 connector
	4(6)	MC4 socket
	1	meter cable
	1	FEMS-cable
	20	Nuts for AC connection
	1	Insulator plate for AC connections
	10	Cable lugs AC cable
	1	PIN terminal 3-pin PIN terminal 6-pin PIN terminal 7-pin
	1	Cover AC connection
	2	Screw for earthing and fixing to wall bracket

5.1.2. FENECON Home 20 & 30-EMS-Box

Table 27. Scope of delivery — FENECON Home 20 & 30-EMS-Box
illustration	number	designation
	1	FENECON Home 20 & 30-EMS-Box
	2	Page Fascia
	2	Harting housing with cable gland 13-21 mm, multiple seal 4 x 8 mm Harting housing with cable gland 19-25 mm, multiple seal 2 x 10 & 1 x 8 mm
	1	Harting socket, 10-pin
	1	Harting insert 16-pin (assembled)
	1	End bridge
	2	Network housing
	5	Blind plug 8 mm
	2	Blind plug 10 mm
	1	Battery cable set, 3 m
	1	Operating instructions
	1	Operating instructions (for the end customer)
	1	Quick start guide

5.1.3. FENECON Home 20 & 30 parallel box (optional)

Table 28. Scope of delivery — Parallel box
illustration	number	designation
	1	FENECON Home 20 & 30-Parallel-Box
	2	Page Fade Out
	2	Each set of two DC cables, 2 m
	1	Communication cable parallel connection, 2 m

5.1.4. FENECON Home 20 & 30 extension box (optional)

Table 29. Scope of delivery — Extension box
illustration	number	designation
	1	FENECON Home 20 & 30-Extension-Box
	2	Page Fascia
	2	each set of two DC cables, 2 m
	1	Communication cable, 2 m

5.1.5. FENECON Home 20 & 30-BMS-Box/Base

Table 30. Scope of delivery — BMS module/base
illustration	number	designation
	1	FENECON Home 20 & 30-BMS-Box
	1	Base
	2	Page cover (FENECON Home 20 & 30-BMS-Box)
	2	Page cover (Base)
	4	Wall mounting mounting bracket
	4	Wall mounting mounting bracket (wall part)
	8	Screws M4 x 10
	2	Screw for wall mounting M6 x 12

5.1.6. FENECON Home 20 & 30 battery module

Table 31. Scope of delivery — Battery module
illustration	number	designation
	1	Battery module
	2	Page cover
	2	Fixing plates
	2	Screws M4 x 10

5.2. Tools required

The following tools are required for Assembly of the system components

Table 32. Tools required
Image	Designation	Designation	Designation
	pencil		level
	impact drill/rechargeable screwdriver		Screwdriver set
	Meter stick		Side cutter
	3mm Allen key		Crew wrench set
	Crimping tool		Multimeter
	pliers for screw connections		Safety goggles
	Safety shoes		dust mask
	rubber hammer		vacuum cleaner
	Dusting pliers		Protective gloves
	Torque wrench		Stripping knife

6. Assembly

Do not damage any cables and make sure that nobody steps on the cables or plugs! Damage can lead to serious malfunctions!
If cables are fed in from the front, the customer must use suitable covers to protect the cables against the risk of tripping.

Ensure that all devices in the same network and the battery modules are integrated into the existing surge protection .

When drilling holes, avoid the water pipes and cables laid in the wall.
Wear safety goggles and a dust mask when drilling to prevent dust from being inhaled or getting into your eyes. when drilling holes.
Make sure that the Inverter is securely installed in case it falls down.
The DC switch lock of a suitable size should be prepared by the customer. The diameter of the lock is 5 mm. The lock may not be installed if the size is not appropriate.
Please refer to the supplier documentation of the Inverter.

Suitable protective covers must be fitted!
All local accident prevention regulations must be observed.

The following components must be installed:

Inverter
Battery tower with Base, battery modules, BMS-Box, and FENECON Home 20 & 30-EMS-Box
Optional:
- Battery tower with Base, battery modules, BMS box and parallel box
Optional:
- Battery tower with Base, battery modules, BMS Box and Extension Box

Before installation, carefully check whether the packaging and products are damaged and whether all accessories listed in chapter 5.1 are included in the scope of delivery. If a part is missing or damaged, contact the manufacturer/dealer.

6.1. Assembly Inverter

6.1.1. Safety instructions

Electric shock from live parts
Death or serious injury to the body and limbs due to electric shock when touching live DC cables connected to the storage system.

Before starting work, disconnect the Inverter, the BMS-Box and the battery modules from the power supply and secure them against being switched on again.
Wait at least 5 minutes after switching off before starting work on the inverter.
Observe the safety instructions of FENECON GmbH in chapter 2.3.
Do not touch any exposed live parts or cables.
Do not pull the terminal strip with connected DC conductors out of the slot under load.
Wear suitable personal protective equipment for all work.

Electric shock in the absence of overvoltage protection
Death or serious injury to the body and limbs from electric shock due to overvoltage (e.g. lightning strike) transmitted via the network cables or other data cables into the building and to other connected devices in the same network due to a lack of overvoltage protection.

Ensure that all devices in the same network and the battery modules are integrated into the existing surge protection
When laying network cables or other data cables outdoors, ensure that suitable overvoltage protection is in place when the cables from the Inverter or battery tower (battery modules) pass from the outdoor area into a building.
The Inverter’s Ethernet interface is classified as "TNV-1" and offers protection against overvoltages of up to 1.5 kV.

Fire and explosion
Death or serious injury to body and limbs due to fire or explosion; in the event of a fault, an ignitable gas mixture may be produced inside the Inverter. Switching operations in this state can cause a fire or explosion inside the product.

In the event of a fault, do not carry out any direct actions on the storage system.
Ensure that unauthorized persons do not have access to the storage system.
Disconnect the battery modules from the Inverter via the DC fuse on the battery tower.
Switch off the AC circuit breaker or, if it has already tripped, leave it switched off and secure it against being switched on again.
Only carry out work on the inverter (e.g. troubleshooting, repair work) with personal protective equipment for handling hazardous substances (e.g. protective gloves, eye and face protection and respiratory protection).

Fire and explosion with deeply discharged battery modules
Death or serious injury to body and limbs from fire or explosion due to incorrect charging of deeply discharged battery modules

Before commissioning the system, ensure that the battery modules are not deeply discharged.
Do not operate the system if the battery modules are deeply discharged.
If the battery modules are deeply discharged, contact Service
Only charge deeply discharged battery modules as instructed by the Service.

Toxic substances, gases and dust
Damage to electronic components can result in toxic substances, gases and dusts inside the Inverter. Touching toxic substances and inhaling toxic gases and dusts can cause skin irritation, chemical burns, breathing difficulties and nausea.

Only carry out work on the inverter (e.g. troubleshooting, repair work) with personal protective equipment for handling hazardous substances (e.g. protective gloves, eye and face protection and respiratory protection).
Ensure that unauthorized persons do not have access to the Inverter.

Arcing due to short-circuit currents
Death or serious injury to the body and limbs due to burns caused by heat development and electric arcs due to short-circuit currents of the battery modules.

Before carrying out any work on the battery modules, disconnect the battery modules from the power supply.
Observe all safety instructions of the battery manufacturer.

Destruction of a measuring device due to overvoltage
Death or serious injury to the body and limbs due to electric shock when touching a live meter housing: Overvoltage can damage a meter and cause voltage to be applied to the meter housing.

Only use measuring devices with a DC input voltage range of at least 600 V or higher.

Hot surfaces
Injuries to the body and limbs due to burning on hot surfaces: The surface of the Inverter can become very hot.

Mount the Inverter in such a way that it cannot be touched accidentally.
Do not touch hot surfaces.
Before starting work, wait 30 minutes until the surface has cooled down sufficiently.
Observe the warning notices on the inverter

Weight of the Inverter
Injuries to the body and limbs due to crushing if dropped during transportation or Assembly of the Inverter

Transport and lift the Inverter carefully.
Note the weight of the Inverter and its center of gravity
Wear suitable personal protective equipment when working on the inverter.

Sand, dust and moisture
Ingress of sand, dust and moisture can damage the Inverter and impair its function.

Only open the inverter if the humidity is within the limit values and the environment is free of sand and dust.

Electrostatic charge
Touching electronic components can damage or destroy the Inverter via electrostatic discharge.

Ground yourself before touching a component.

Cleaning agents
The use of cleaning agents can damage the inverter and parts of the inverter.

Only clean the Inverter and all its parts with a cloth moistened with clean water.

6.1.2. Installation conditions and distances at the installation site

Figure 16. Installation conditions

The Inverter must be installed protected from direct sunlight, rain and snow.

Figure 17. Recommended distances at the installation site

Installation conditions

The wall must be stable enough for mounting the Inverter and must not be flammable.
Maintain a distance of at least 300 mm above the Inverter.
Keep a distance of at least 500 mm below the Inverter (cable ducts are not measured here).
Keep a distance of at least 300 mm from the front of the Inverter.
Laterally: Keep a distance of at least 200 mm to the left of the Inverter and at least 1000 mm to the right.
The maximum distance between the Inverter and the installation location of the meter should be based on the cable supplied (10 m). The cable between the meter and the Inverter can be extended up to 100 m.
The pre-installed current transformers must not be shortened or extended.

6.1.3. Assembly

To install the FENECON Home 20 & 30 inverter on the wall, proceed as follows:

Assembly of the wall bracket

1. mark and drill holes for wall bracket (Ø 8 mm, depth 80 mm)
2. Observe minimum spacing.

3. mount the wall bracket on the wall. Always check the condition of the wall to see whether the wall plugs can be used.

Hook the Inverter into the wall bracket at the top and bottom using the handles.

Then secure on the right-hand side using the enclosed screw.

6.2. Assembly battery tower

6.2.1. Safety instructions

Electric shock from live parts
Death or serious injury to the body and limbs due to electric shock when touching live DC cables connected to the storage system

Before starting work, disconnect the Inverter, the BMS-Box and the battery modules from the power supply and secure them against being switched on again.
Wait at least 5 minutes after switching off before starting work on the inverter.
Observe all the manufacturer’s safety instructions in chapter 2.3.
Do not touch any exposed live parts or cables.
Do not pull the terminal strip with connected DC conductors out of the slot under load.
Wear suitable personal protective equipment for all work.

Electric shock in the absence of overvoltage protection
Death or serious injury to the body and limbs from electric shock due to overvoltage (e.g. lightning strike) transmitted via the network cables or other data cables into the building and to other connected devices in the same network due to a lack of overvoltage protection

Ensure that all devices in the same network and the battery modules are integrated into the existing surge protection
When laying network cables or other data cables outdoors, ensure that suitable surge protection is in place when the cables from the Inverter or battery tower (battery modules) pass from the outdoor area into a building
The Inverter’s Ethernet interface is classified as "TNV-1" and offers protection against overvoltages of up to 1.5 kV.

Fire and explosion
Death or serious injury to the body and limbs due to fire or explosion; in the event of a fault, an ignitable gas mixture may occur inside the battery module. Switching operations in this state can cause a fire inside the product or trigger an explosion.

In the event of a fault, do not carry out any direct actions on the storage system.
Ensure that unauthorized persons do not have access to the storage system.
Disconnect the battery modules from the Inverter via an external disconnecting device.
Switch off the AC circuit breaker or, if it has already tripped, leave it switched off and secure it against being switched on again.
Only carry out work on the inverter (e.g. troubleshooting, repair work) with personal protective equipment for handling hazardous substances (e.g. protective gloves, eye and face protection and respiratory protection).

Fire and explosion if battery modules are deeply discharged
Death or serious injury to the body and limbs due to electric shock when touching a live meter housing: An overvoltage can damage a meter and lead to a voltage being applied to the meter housing.

Before commissioning the system, ensure that the battery modules are not deeply discharged.
Do not operate the system if the battery modules are deeply discharged.
If the battery modules are deeply discharged, contact Service
Only charge deeply discharged battery modules as instructed by the Service.

Toxic substances, gases and dust
Damage to electronic components can result in toxic substances, gases and dusts inside the Inverter. Touching toxic substances and inhaling toxic gases and dusts can cause skin irritation, chemical burns, breathing difficulties and nausea.

Only carry out work on the inverter (e.g. troubleshooting, repair work) with personal protective equipment for handling hazardous substances (e.g. protective gloves, eye and face protection and respiratory protection).
Ensure that unauthorized persons do not have access to the Inverter.

Arcing due to short-circuit currents
Death or serious injury to the body and limbs due to burns, heat development and electric arcs due to short-circuit currents in the battery modules.

Before carrying out any work on the battery modules, disconnect the battery modules from the power supply.
Observe all safety instructions of the battery manufacturer.

Destruction of a measuring device due to overvoltage
Death or serious injury to the body and limbs due to electric shock when touching a live housing of a measuring device. An overvoltage can damage a measuring device and lead to a voltage being applied to the housing of the measuring device.

Only use measuring devices with a DC input voltage range of at least 600 V or higher.

Hot surfaces
Injuries to the body and limbs due to burning on hot surfaces: The surface of the Inverter can become very hot.

Mount the Inverter in such a way that it cannot be touched accidentally.
Do not touch hot surfaces.
Before starting work, wait 30 minutes until the surface has cooled down sufficiently.
Observe the warning notices on the inverter.

Weight of the battery modules
Injuries to the body and limbs due to crushing when falling during transportation or Assembly of the battery modules.

Carefully transport and lift the battery modules.
Note the weight of the battery modules and its center of gravity.
Wear suitable personal protective equipment for all work on the battery modules.

Sand, dust and moisture
Ingress of sand, dust and moisture can damage the Inverter and impair its function.

Only set up the battery tower where the humidity is within the limit values and the environment is free of sand and dust.

Electrostatic charging
Touching electronic components can damage or destroy the battery tower via electrostatic discharge.

Ground yourself before touching a component.

Cleaning agents
The use of cleaning agents can damage the inverter and parts of the inverter.

Clean the battery tower and all parts of the inverter exclusively with a damp cloth moistened with clear water.

location

It is recommended to install the battery tower indoors.
If installed outdoors, weather protection (sun and precipitation protection) must be provided.
Avoid dirt and dust during Assembly.
Do not place the battery tower in an area prone to flooding.
Do not install the battery tower in very damp areas (e.g. bathrooms).
Do not install the battery tower where the ambient conditions are outside the permissible values (chapter Technical data).
Keep the battery tower away from heat sources and fire.
Ensure direct contact between the battery module housing and the ambient air and do not cover or shield the battery module.

Installation

Wear safety goggles, insulating gloves and safety shoes when assembling the battery modules.
Remove all conductive jewelry (e.g. watches, bracelets, rings).

6.2.2. Conditions at the installation site

Indoor or outdoor installation
We recommend installing the FENECON Home 20 & 30 battery tower indoors. However, the battery tower can also be installed outdoors protected from the weather (e.g. garage).

6.2.3. Installation conditions and distances at the installation site

Figure 18. Installation conditions.

The battery tower must be installed protected from direct sunlight, rain and snow.
In conditions outside the optimum temperature range, the performance of the battery is reduced. (optional temperature range +15 °C to +30 °C)

Figure 19. Spacing at the installation site

A distance of 300 mm from the wall and 600 mm between two battery towers is recommended.
A distance of 500 mm from a wall is recommended at the front.
The FENECON Home 20 & 30 battery tower and Inverter should be installed/mounted one above the other. If there is not enough space above, the battery tower and inverter can also be installed next to each other.
A distance of 200 mm from the ceiling is recommended.

If the recommended distances are not observed, installation may be more difficult and derating may occur earlier.

6.2.4. Assembly of battery tower 1 with FENECON Home 20 & 30 EMS box

Proceed as follows to set up the battery tower:

1. The battery tower is installed stackable in front of a wall on a solid and level floor.
2. The distance to the wall must be 40 to 65 mm so that the wall bracket can be fitted correctly.

3. Place the Base on the feet at the installation site (keep the distance of 40 to 65 mm to a wall)

4. Place an FENECON Home 20 & 30 battery module on the Base, paying attention to the plug-in bolts and positioning holes.
5. A black protective film may be stuck to the plug connections of the battery. If present, remove this before plugging together.

A maximum of 15 FENECON Home 20 & 30 battery modules can be stacked on one Base.

6. Install all remaining FENECON Home 20 & 30 battery modules in the same way.
Between 5 and 15 battery modules can be stacked.

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

Ensure that the circuit breaker of the BMS-Box is switched off before installing the BMS-Box.

7. Place the FENECON Home 20 & 30 BMS box on the last battery.

8. Attach FENECON Home 20 & 30-EMS box.

9. Mount the T-piece and the bracket with the enclosed M6 screw.

10. Hang the mounting rails of the EMS box (wall side) and mark the holes for the wall bracket on the wall. (see previous picture)
11. Drill the holes and screw the wall bracket to the wall.
12. Hang all other rails alternately one module lower on the left/right and screw on with the enclosed screws.
13. The following arrangement of brackets is recommended for mounting the battery towers.
From 10 battery modules, two holders must be used on each side.

14. Insert the side panels of the Base, the battery modules, the BMS box and the EMS box.

Figure 20. Arrangement of the module fastening

You will find the assembly instructions for 2 or 3 battery towers in chapter 7.1.

6.3. Electrical installation

6.3.1. Earthing the inverter and the battery tower

1. The Inverter must be earthed directly to the equipotential bonding rail.
2. at least a 10 mm² earthing cable must be used.
3. To do this, attach the earthing cable to the Inverter at the bottom right using the enclosed screw (red).

4. The battery tower must be earthed directly to the equipotential bonding rail.
5. At least a 10 mm² earthing cable must be used.
6. To do this, attach the earthing cable of the EMS box to the earthing bolt (red).

7. Each additional battery tower (parallel box or extension box) must be earthed directly to the equipotential bonding bar.
8. At least a 10 mm² earthing cable must be used.
9. To do this, attach the earthing cable of the parallel or extension box to the earthing bolt (red).

The cross-section of the earthing must be at least 10 mm².
The Inverter and the battery towers must be earthed individually to the equipotential bonding.

6.4. Approved Grid shapes for connecting the FENECON Home 20 & 30

Figure 21. Approved Grid shapes for connecting the FENECON Home 20 & 30

6.4.1. Connection and wiring of the AC circuit

Figure 22. General information AC connection

Table 33. Components for AC connection (not included in the scope of delivery)
Item	Description
1	2 bi-directional meter from energy supplier
2	Inverter fuse protection 3-pole (20 kW — 40 A; 29.9 kW — 63 A)*¹
3	Consumption fuse protection (no Back-up Power) with RCD type A and suitable circuit breakers
4	Service switch for switching the emergency power loads to the mains (recommended)
5	Consumption protected by suitable MCBs and RCD type A 30 mA *²
6	Consumption — emergency power supply maximum 20/30 kW/6.666/9.97 kW per phase (also applies in normal operation if Grid available!); no other AC generators permitted
7	Consumption not supplied with emergency power
8	AC supply of the EMS box (if Consumption is connected to the emergency power outlet)
9	Fuse maximum C6 or C10 1-pole
10	Potential equalization busbar

*¹In addition, the currently valid national regulations and the specifications of the relevant grid operator must be observed. (If an RCD is required by the grid operator, an RCD type A with a tripping current of 300 mA is recommended; at 30 mA, unwanted shutdowns may occur).

*²The currently valid national regulations, the specifications of the associated network operator and the manufacturer’s specifications must be observed.

Figure 23. Recommended maintenance switch for emergency power outlet

Table 34. Description of the switch positions of the maintenance switch (not included in the scope of delivery)
Item	Description
1	Emergency power consumers are supplied with emergency power via inverter (normal position)
2	Emergency power consumers are disconnected from the Inverter and Grid
3	Emergency power consumers are supplied from the Grid

The automatic emergency power switchover is not affected by the maintenance switch.

Figure 24. AC connection Energy meter

Table 35. Components for AC connection
Item	Description
1	2 bi-directional meter from energy supplier
2	Inverter fuse protection C40/C63 3-pole*¹
3	Consumption fuse (no Back-up Power) with RCD type A and suitable circuit breakers
4	Consumption not supplied with emergency power
5	Folding transformer (directly behind utility meter) already pre-installed on the energy meter
6	Energy meter
7	Fuse for the Energy Meter (recommended) B6 3-pole

*¹In addition, the currently valid national regulations and the specifications of the relevant grid operator must be observed. (If an RCD is required by the grid operator, an RCD type A with a tripping current of 300 mA is recommended; at 30 mA, unwanted shutdowns may occur).

1. Insert the supply cable of the Inverter and the cable for the emergency power outlet into the cable gland.

2. Strip the sheath and the wires
3. Make sure that the PE is slightly longer than the other cores.

Section

Description

Dimensions

1

Outer diameter

21 to 26 mm

2

Length of stripped cable

70 to 80 mm

3

length of stripped conductor

11 to 13 mm

4

Conductor cross-section

10 to 16 mm²

4. Press the enclosed cable lugs onto the conductors. Alternatively, use other suitable cable lugs. The screw diameter of 5 mm must be observed here.

5. Connect the cables to the connections provided (ON-GRID/OFF-GRID). Use the enclosed nuts for this and tighten to 2-3 Nm.
6. Ensure that a clockwise rotating field is connected.
7. Ensure that phase L1 on the Inverter and on the Energy Meter is the same phase, also ensure this for phases L2 and L3.
8. The Inverter must be pre-fused with a C40/63 circuit breaker.

9. Fasten the cable gland to the Inverter. Tighten the screws with 3-4 Nm.

10. Checking the connection area of the folding transformer.
11. Connect the transformers in the sub-distribution directly behind the utility meter.
12. To do this, fold the respective transformers around the phases L1 — L3 and close until the lock audibly engages.
13. The cable between the converter and the energy meter must not be shortened.

The maximum current carrying capacity is 120 A per phase.
K — from the sub-distribution board
L — to the utility meter (Grid connection)
The cable between the transformer and the energy meter must not be shortened.
The inside diameter of the hinged cable is 16 mm.
The transformers and the meter cannot be replaced by other types.
It must be ensured that phase L1 is also phase L1 on the Inverter.

14. Connect the voltage tap to the marked connections on the energy meter.
15. The Energy Meter must be pre-fused with a B6A circuit breaker for each phase.
16. The hinged transformers are already connected. If the measuring sensors of the smart meter were unscrewed during installation for mounting reasons, please ensure that they are reconnected in the correct order.

17. It is recommended that a maintenance switch is installed for the emergency power outlet.
18. This means that in the event of maintenance or failure of the inverter, the emergency power consumers can continue to be supplied via the power grid.

A 4-pole maintenance switch is recommended. Care must be taken to ensure that no star point displacement can occur during switching. The correct maintenance switch must be selected by a specialist company, taking into account the conditions on site.

This does not affect the function of the automatic emergency power switchover.

6.4.2. AC connection of the FENECON Home 20 & 30-EMS-Box

An external 230V power supply is required to supply the FENECON Home 20 & 30-EMS-Box.

The purpose of this is to avoid loading the empty battery with additional Consumption. This can occur particularly in winter when there is no sunshine or when there is snow on the PV system.

1. Feed the cable through the small hole in the multiple seal.
A 3x1.5 qmm is recommended.
2. Make sure that the housing with the 3-hole seal is used. The other housing will be needed later.

3. Insert the cable through the gland and the multiple seal into the Harting housing.

4. Harting socket insert, 10-pin, with cable.
- L to 1
- Place N on 2
- Place PE on PE

5. The other pins are for the integrated relay contacts.
If these are not used, the socket can be screwed into the housing.
6. the remaining feed-throughs of the multiple seal are closed with the enclosed blanking plugs (10 mm) and the screw connection is tightened.

7. the plug must be connected to the FEMS box.
8. Lock the plug at the top and bottom through the holders.

6.4.3. DC cable from the battery tower to the Inverter

This chapter can be skipped if there are several battery towers.

You will find the assembly instructions for 2 or 3 battery towers in chapter 7.2.

1.Use the enclosed 3m DC cable to connect the battery tower and Inverter.
2. Connect the cables to the battery (BAT OUT) and the inverter (BAT).
3. Connect plus (+) to plus (+) and minus (-) to minus (-).
4. If the DC cables supplied are not long enough, the cables can be extended using the following connector types.
32.0270P0001 PV-KBT4-EVO ST/10X
32.0271P0001 PV-KST4-EVO ST/10X
5. To do this, crimp a DC cable with the required dielectric strength and a cross-section of 10 mm² to the above plugs and sockets and plug together with the cables supplied.

The DC plugs used on the battery side are not compatible with standard MC4 plugs.

The 29.9 kW variant has two battery inputs. The FENECON Home 20 & 30 battery tower must always be connected to battery connection 1 (BAT1).

6.4.4. Connection and cabling of PV system

The various PV strings can be connected directly to the PV inputs on the inverter.
The 20 kW variant has 2 MPPTs, each with two inputs (red; blue).
The 29.9 kW variant has 3 MPPTs, each with two inputs (red; blue; green)

Type 2 overvoltage protection is integrated in the inverter.

6.4.5. Connecting the smart meter to the inverter

Connect the enclosed cable for the meter to the bayonet connection side of the inverter and lock it.
Connect the other end to the meter.
If the existing 10 m cable is not sufficient, it can be extended up to 100 m using a conventional network cable.

6.4.6. Communication between Inverter and EMS-Box

1. Feed the enclosed communication cable (3m network cable with open end) through one of the holes in the multiple seal of the communication port cover.
2. Leave the other openings of the multiple seal closed.

3. Connect the plug of the communication cable to the Inverter.

4. Attach the cover to the Inverter and tighten the screw connection.

5. Feed the cable through one of the four holes in the multiple seal.

6. Insert the cable through the cable gland and the multiple seal into the Harting housing.

7. The other end with two open pins must be connected to terminal 1/2 on the Harting connector (16-pin — A).
8. Connect the white wire to terminal 1.
9. Connect the orange wire to terminal 2.

If controllable Consumptions have been installed and one of the following FEMS extensions has been purchased, the following two steps can be neglected for the time being.
- FEMS Heat pump "SG-Ready" app
- FEMS App BHKW

10. Then screw the socket into the Harting housing.
11. Close the other openings in the screw connection with the enclosed 8 mm blanking plugs.
12. Relieve the strain on the cable by tightening the screw connection.

13. Close the remaining feed-throughs of the multiple seal with the enclosed 8 mm blanking plugs and tighten the screw connection.
14. Lock the plug at the top and bottom through the holders.

6.4.7. Communication from a battery tower

If only one battery tower is installed, the end jumper (included) must be plugged into the PARALLEL OUT connection and locked by turning the underside.

You will find the assembly instructions for 2 or 3 battery towers in chapter 7.3.

6.4.8. Communication with the customer network

1. To seal the network connections, insert the cable into the plug and screw it in place. Only the multiple seal and the screw connection are required.

If the battery tower is installed indoors, this point can be skipped. And the network cable can be plugged in directly.

2. Make sure that the network plug protrudes approx. 3 mm above the bayonet catch at the front.
3. For example, the end bridge of the battery can serve as a reference for the position of the network connector.

4. For Internet connection and storage system configuration, connect the network cable to the LAN port of the battery and the other end of the cable to the customer’s network.

The storage system does not have a W-Lan function.

6.4.9. Cover for the internal input (optional)

Optionally, a network housing with blind plug (included in the scope of delivery) can be used as a cover for the internal connection. The network housing and the blind plug must be fitted beforehand.

An IP protection class is only guaranteed if the corresponding plugs are locked on all connections.

7. Parallel connection of several battery towers

7.1. Assembly of further battery towers

7.1.1. Assembly of battery tower 2 with FENECON Home 20 & 30 parallel box

If a second battery tower is available, the parallel box is attached to the second battery tower instead of the EMS box.

To do this, repeat the steps from chapter 6.2.4. In step 8, insert the FENECON Home 20 & 30 parallel box instead of the FENECON Home 20 & 30 EMS box.

7.1.2. Assembly of battery tower 3 to 4 with FENECON Home 20 & 30 extension box

If there is a third to fifth battery tower, the extension box is attached to the third to fourth battery tower instead of the EMS box.

To do this, repeat the steps from chapter 6.2.4. In step 8, insert the FENECON Home 20 & 30 extension box instead of the FENECON Home 20 & 30 EMS box.

7.2. Electrical installation of additional battery towers

7.2.1. DC cable between two battery towers and the Inverter

1. Use the enclosed 3m DC cable to connect the second battery tower with the plugged-on parallel box to the Inverter.
2. If the length of the DC battery cables is not sufficient, one of the enclosed sets of DC cables (2 m) can be used to extend them.
3. Connect the cables to the second battery tower (parallel box) (BAT OUT) and the inverter (BAT). (red)
4. Connect plus (+) to plus (+) and minus (-) to minus (-).
5. The two battery towers are connected to each other using the second cable set supplied in the parallel box.
6. To do this, connect the two cables to the first battery (EMS box) (BAT OUT) and to the second battery (parallel box) (BAT IN) (green).

7.2.2. DC cable between the third to fourth battery tower and parallel box

1. The third and fourth battery towers are connected to the parallel box. Depending on the distance, a 2 m cable set is sufficient; if not, the two enclosed cable sets can be connected and thus extended to 4 m.
2. To do this, connect the two cables between the extension box (BAT OUT) and the parallel box (BAT IN).

7.3. Communication of further battery towers

7.3.1. Communication between two to four battery towers

1. If several battery towers are operated in parallel, the network cable supplied with the Parallel Box and Extension Box must be used between the towers. (green)
2. The network cable must be plugged in and locked between the EMS Box (PARALLEL OUT) and the Parallel Box (PARALLEL IN).
3. Likewise on all other towers always between PARALLEL OUT and PARALLEL IN. (blue/orange)
4. At the last tower, the end bridge must be set to PARALLEL OUT. (red)

8. Initial commissioning

8.1. Checking the installation, connections and cabling

Check the system as follows before initial commissioning:

All components (distances, environment, mounting) are installed correctly.
All internal wiring is complete and properly connected.
All external supply lines (power supply, communication cable) are properly connected.
All connected loads are matched to the system and the necessary settings have been made.
All necessary tests of the system were carried out in accordance with the standards.

Commissioning may only be carried out by trained specialist personnel.

It is forbidden to disconnect the plug connections when they are live. Disconnect the power supply.
Batteries must not be connected or disconnected when a current is flowing.
Opening batteries is prohibited.
Before commissioning the system, ensure that the battery modules are not deeply discharged.
If the battery modules are deeply discharged, contact the FENECON service
Only charge deeply discharged battery modules as instructed by the FENECON service.

This is indicated in the operating instructions:

that an appropriate cooling time must be observed before starting work on the appliances,
or that the risk of burns is prevented by wearing suitable protective gloves

8.2. Switching the system on/off

8.2.1. Switch on

1. fuse the EMS box (sub-distribution board, or socket outlet)
2. Fuse the inverter. (sub-distribution, Grid and emergency power side)
3. If available, switch on the PV system with the DC switch on the inverter. (Left side of the Inverter)

4. Secure the battery tower (front battery tower)
5. If several battery towers are present, all towers must be secured

6. If the IBN has already been completed, the battery starts and the LED bar should flash after approx. 60 seconds.
7. The system is now ready for use.
8. If the IBN has not yet been completed, the battery does not start, then continue with chapter 8.3.

The system is restarted by pressing the button on the front of the EMS Box. This can take up to three minutes until the system is up and running again.

If the system has not yet been configured, the battery goes into error mode or switches off.
This can also happen during configuration. It is therefore recommended that you only switch on the battery when you are prompted to do so during the configuration process.

The Inverter only starts after configuration and only then synchronizes to the Grid.

8.2.2. Switch off

1. securing the battery tower (front battery tower)
2. If there are several battery towers, all towers must be secured.

3. If present, switch off the PV system using the DC switch on the Inverter.
4. Secure the Inverter. (sub-distribution, Grid and emergency power side).
5. Secure the EMS box (sub-distribution board or socket)

6. The system is only completely switched off when all LEDs on the Inverter and the battery are no longer lit. This can take approx. 30 seconds.
7. The Inverter remains on if one of the three energy sources is not switched off.

8.3. Configuration via commissioning wizard

Open the FENECON homepage and click on the login for FEMS online monitoring "FEMS Login" in the top right-hand corner. Alternatively, you can use the QR code below or the link to access the page.

1. https://portal.fenecon.de

2. Log in with your installer account.

3. If an installer account has not yet been created, it can be created directly under the login window.
4. All information must be filled in correctly and completely.

5. Once all the necessary points have been confirmed, the account will be created automatically
6. You will be forwarded directly to the configuration of the storage system.

7. Click on the blue plus at the bottom.
8. add FEMS.

9. First you must enter the 16-digit installer key.
10. This can be found on the type plate on the right-hand side of the battery tower.
11. Installation key: XXXX-XXXX-XXXX-XXXX-XXXX
12. Then follow the installation wizard through the various steps.

13. Once the IBN is complete, the system is ready for operation and you will be forwarded directly to live monitoring.

You will receive an e-mail with a summary of the complete IBN (IBN protocol) for your records.
The customer also receives an e-mail with the personal access data for end customer monitoring.

9. Capacity expansion of the system

The capacity can also be extended at a later date, there is no time limit.

It will not reach full capacity with the new battery module, as the new module adapts to the old modules.

9.1. Capacity expansion of the battery tower
by one or more battery modules

The battery tower can be stacked up to 15 battery modules to form a battery tower.

If further battery modules are added after the IBN, the following procedure must be followed:

1. Activate the "Capacity expansion" function in online monitoring under Storage system.
2. This charges/discharges the battery to 30 %. When the charge level is reached, charging/discharging is stopped and the charge level is maintained.
You can choose between "Immediate start" and "Planned extension".
3. then confirm the settings by ticking the box.

4. Shut down the entire system. The exact procedure is described in detail in chapter 8.2.2.
* Set the battery fuse switch to OFF.
* DC switch of the Inverter to OFF.
* AC fuse on the Grid and emergency power side to OFF.

5. remove the top three side panels on each side.
6. Remove the latch up to the first battery module on both sides.

7. Remove the EMS box and BMS box and place them on their sides. To do this, unscrew the wall bracket of the BMS box from the wall.

8. Attach the new battery module.

9. Proceed as described in chapter 6.2.4 from step 8.
* Attach FENECON Home 20 & 30-BMS box
* Attach FENECON Home 20 & 30-EMS box
* Attach locks
* Attach side panels

10. Run the commissioning wizard again.

If the exact voltage value of the old and new battery modules has not been matched, SOC jumps will occur when the battery is charged and discharged. As a result, the full capacity is temporarily not available.
The greater the voltage difference between the "old" and "new" batteries, the longer it may take until there are no more SOC jumps and the full capacity is available.

9.2. Extension of the battery tower
by one or more battery towers

The capacity can be subsequently expanded by one or more battery towers with the same capacity. Up to four battery towers can be operated in parallel.

If further battery modules are added after the IBN, the following procedure must be followed:

1. Activate the "Capacity expansion" function in online monitoring under Storage system.
2. This charges/discharges the battery to 30 %. When the charge level is reached, charging/discharging is stopped and the charge level is maintained.

3. Switching off the entire system. The exact procedure is described in detail in chapter 8.2.2.
* Set the battery fuse switch to OFF.
* DC switch of the Inverter to OFF.
* AC fuse on the Grid and emergency power side to OFF.

4. installation of the new battery towers as described in chapter 7.1.1 and chapter 7.1.2.
5. Carry out DC wiring as described in chapter 7.2.1 and chapter 7.2.2.
6. Wire the communication between the battery towers as described in chapter 7.3.1.
7. Everything can then be switched back on as described in section 8.2.1.

8. Run the commissioning wizard again.

If the exact voltage value of the old and new battery towers has not been matched, the new batteries will not be connected.
This is not displayed as an error, but it can happen that the SOC displays of the individual battery towers show different charge levels.
If the charge levels have equalized after a charging cycle, the last battery towers will also be switched on.
The battery towers work independently, so the flashing frequency of the different towers may vary. The SOC display of the individual towers may also differ briefly.

10. FEMS extensions

The integrated relays can be used directly on the (first) battery tower for the following FEMS extensions.
Various pins on the Harting connectors are provided for this purpose.

Harting plug 10-pin: 3x free relay channels (max.: 230 V; 6 A)
Harting plug 16-pin: 2x control contacts (max.: 24 V; 1 A)
3x digital inputs
1x analog output (0 V to 10 V)

It may not be possible to connect and operate all apps at the same time.
For more information on the following apps, please visit our homepage.

100 https://fenecon.de/fenecon-fems/

If the integrated relays are not sufficient, an external 8-channel relay board can be connected via Ethernet.

The pin assignment of the Harting connector (10-pin) is shown in detail below.

Table 36. Connector Pin assignment Power connector
Item	Description
1	230 V supply for internal components
2	Relay 1 (230 V; 6 A)
3	Relay 2 (230 V; 6 A)
4	Relay 3 (230 V; 6 A)
5	Neutral conductor connection (required for integrated meter)
6	PE connection

The pin assignment of the Harting connector (16-pin) is shown in detail below.

Table 37. Connector Pin assignment of control connector
Item	Description
1	RS485 connection — Inverter
2	RS485 connection — External devices
3	Analog output (0 V to 10 V)
4	12 V DC (12 V; GND)
5	3x digital inputs
6	Not assigned
7	Relay 5 (24 V; 1 A)
8	Relay 6 (24 V; 1 A)
9	PE connection

10.1. Connection of a Heat pump via "SG-Ready"

The integration of an "SG-Ready" (Smart Grid-Ready) Heat pump is an advanced form of sector coupling of electricity and heat - often also referred to as a "Power-to-Heat" application. The control system ensures that the Heat pump slightly overheats the thermal storage unit at times when cheap (solar) electricity is available in order to save electrical energy at times when there is no cheap surplus electricity.

1. The internal relay contacts 5 and 6 can be connected via pins 5/6 and 7/8 on the Harting connector (16-pin — C).
2. For detailed information on connecting the Heat pump, please refer to the manufacturer’s installation instructions.

Once the components have been installed, the app still needs to be installed.
To do this, proceed as described in section 10.6.

10.2. Connection of a Heating element with a maximum of 6 kW

The integration of an electric Heating element is the simplest and cheapest form of sector coupling of electricity and heat - often also referred to as a "power-to-heat" application.

If the capacity of the electrical storage unit is exhausted, self-generated energy must be fed into the public Grid with low remuneration. In these cases, it often makes sense to use the surplus electricity for water heating (e.g. for hot water buffer tanks, pool heating, etc.). In this way, other energy sources (e.g. wood or oil) can be saved.

1. So that each phase of the Heating element can be controlled separately, each phase must be connected individually to a relay.
2. To do this, connect phase 1 (brown) to pin 3 on the Harting plug (10-pin). Continue from pin 4 to the Heating element. Use pins 5/6 and 7/8 for phase 2 (black) and phase 3 (gray).
3. Loop through the neutral conductor N via pin 9/10.
4. A cable (5G1.5) from the sub-distribution board to the Harting plug and a cable (5G1.5) from the Harting plug to the Heating element are recommended.
5. For detailed information on connecting the Heating element, please refer to the manufacturer’s installation instructions.

Care must be taken to ensure that three different phases are used. If only one phase is used, damage may occur.

Once the components have been installed, the app still needs to be installed.
To do this, proceed as described in section 10.6.

Manual mode is only suitable for temporary operation. For permanent operation, the external relay control must be used.

10.3. Control of a Heating element greater than 6 kW
(control via external relay)

The integration of an electric Heating element is the simplest and cheapest form of sector coupling of electricity and heat — often also called a "power-to-heat" application.

If the capacity of the electrical storage unit is exhausted, self-generated energy must be fed into the public Grid with low remuneration. In these cases, it often makes sense to use the surplus electricity for water heating (e.g. for hot water buffer tanks, pool heating, etc.). In this way, other energy sources (e.g. wood or oil) can be saved. The externally installed relays must be designed according to the installed output of the installed Heating element.

1. So that each phase of the Heating element can be controlled separately, each phase must be connected individually to the internal relay via an additional external relay.
2. Connect L1 to pin 3 via a fused LS B6. Route phase L1 from pin 4 to the external relay and connect to A1. A2 must be connected to the neutral conductor.
3. Proceed in the same way as step 2 with the other two phases. Connect K2 and K3 via pins 5/6 and 7/8.

4. As an alternative to L2/L3, L1 can of course also be looped through, or +. 5. Or alternatively control the contactors/relays with 24V. If a different voltage source is used, A2 must not be connected to N.

6. The voltage supply of the Heating element must then be connected to the switching contacts of the relays.
7. For detailed information on connecting the Heating element, please refer to the manufacturer’s installation instructions.

Once the components have been installed, the app still needs to be installed.
To do this, proceed as described in section 10.6.

10.4. Control of a CHP unit

The integration of a Combined heat and power plant (CHP) into electrical energy management is an advanced form of sector coupling of electricity and heat.

This makes it possible to utilize the property of the CHP unit as an electrical generator that is independent of the time of day and weather conditions. For example, the CHP unit is given a switch-on signal to produce electricity when the storage unit’s charge level is low. This is useful, for example, if the battery capacity is not sufficient to cover electricity consumption at night. This avoids the need to purchase expensive electricity from the Grid.

When the battery is charged, this signal is stopped again to prevent the CHP power from being fed into the grid unnecessarily.

1. The enable signal for starting the CHP unit can be connected to pins 5/6 via the Harting connector (16-pin — C).
2. For detailed information on connecting the CHP unit, please refer to the manufacturer’s installation instructions.

Once the components have been installed, the app still needs to be installed.
To do this, proceed as described in section 10.6.

10.5. Additional AC meter

If other meters have been installed for monitoring other consumers or generators, these must be integrated into the circuit in accordance with the manufacturer’s instructions.
The communicative integration is shown below using a 3-phase sensor without a current transformer as an example.
Only meters that have been approved by the company FENECON can be integrated.
The first generation meter is always integrated with Modbus ID 6. All others in ascending order. The baud rate must be 9600.

1. Connect the wires to pin 3/4 on the Harting connector (16-pin — A)
2. Connect the white wire (alternative color possible) to terminal 3.
3. Connect the brown wire (alternative color possible) to terminal 4.

"Using SOCOMEC E24 as an example"
4. The brown wire (alternative color possible) is connected to the meter at connection point 2 and the white wire (alternative color possible) is then connected to 3.
5. An end resistor with 120 Ω must be installed between (+) and (-) (A/B) on the last bus subscriber.

"Using KDK 4PU as an example"
6. The brown wire (alternative color possible) is connected to the meter at connection point 8 and the white wire (alternative color possible) is then connected to 7.
7. An end resistor with 120 Ω must be installed between (+) and (-) (A/B) on the last bus subscriber.

If several meters are to be installed, they can be connected in series for communication purposes. For this purpose, the first meter can be bridged to the second, etc. The Modbus address must be set in ascending order.
www.docs.fenecon.de/_/de/fems/downloads.html

Once the components have been installed, the app still needs to be installed.
To do this, proceed as described in section 10.6.

10.6. Activation of the app in the FEMS App Center

After installing the hardware FEMS extension, it still needs to be activated in the App Center. To do this, proceed as follows.

1. https://portal.fenecon.de

2. Log in with your installer account.

3. Click on the three dashes at the top left.

4. select "Settings"

5. click "FEMS App Center"

6. Click on "Redeem license key" to open a new window.

7. Enter the license key and click "Validate license key". (The license key must be purchased in advance).

If the validation was successful, a list of the respective apps that can be installed with the redeemed license key is displayed in a selection.
9. Select the app to be installed.

10. You will then be redirected to the installation wizard of the respective app.
11. Make settings.
12. Then click on "Install app".

11. External control of the Inverter

There are various ways to override the Inverter from external devices.

11.1. Ripple control receiver

The Inverter can be controlled directly via a ripple control receiver. The following plugs supplied with the Inverter are required for this.

1. The small parts box of the Inverter comes with three plugs that can be plugged into the bottom of the Inverter.

2. The plugs are numbered consecutively.

3. To activate the functions, the ripple control receiver must be activated during commissioning.
4. then confirm with OK.

The active power of the FENECON Home 20 & 30 inverter can be controlled directly by the energy supply company (EVU) via a ripple control receiver (RSE).
The behavior of the Inverter in the various control stages can be described as follows.

100 % → standard signal, Inverter operates without restrictions (20/30 kW)
60 % → Inverter output power is reduced to 60 %. (12/18 kW)
30 % → Inverter output power is reduced to 30 %. (6/9 kW)
0 % → Inverter output power is reduced to 0 %. (0/0 kW)

If other inverters are used, these must also be connected separately to the RSE; how exactly depends on the grid operator and the RSE used.

Grid feed-in from the Inverter is stopped completely when the load is reduced to 0 %, i.e. the Consumption is supplied completely from the Grid.
Only the battery continues to be charged.

1. A cable with at least 5 cores with a core cross-section of 0.34 mm² to 0.75 mm² is recommended.
2. Feed the cable through one of the holes in the multi-hole seal of the multiple seal.
3. Attention: One feed-through is already blocked by the communication cable between the Inverter and EMS.
4. Leave the other openings of the multiple seal closed.

5. Connect the wires of the control cable as shown in the picture.

6. A jumper must be connected between pin 7 and pin 8 so that the Inverter synchronizes to the Grid.
7. A wire with a wire cross-section of 0.34 mm² to 0.75 mm² is recommended.

8. Connect the two plugs to the bottom of the Inverter.

9. Attach the cover to the inverter and tighten the screw connection.

11.2. § Section 14a EnWG

The Inverter can be limited to a maximum reference power of 4.2 kW. The digital input of the EMS must be assigned for this.

1. The signal can be connected to pins 1 (C) and 8 (A) via the Harting connector (16-pin — A & C).
2. For detailed information on connecting the FNN control box, please refer to the manufacturer’s installation instructions.

12. FEMS-Online-Monitoring

The FEMS online monitoring is used to visualize all energy flows in your system. The energy monitor shows live data on grid consumption or feed-in, PV production, charging/discharging of the battery storage system and power consumption. Other widgets display the percentage of self-sufficiency and self-consumption. In addition, the individual widgets offer a detailed view, which can also be used to view the performance values with phase accuracy.

In addition to the pure information display, all additionally purchased FEMS extensions, such as for integrating a Heat pump, Heating element, e-charging station or Combined heat and power plant (CHP), are also listed in the online monitoring. Their functionality can be controlled via the corresponding widget.

In addition to the live view, the history offers the option of selecting user-defined time periods for online monitoring. The status of the entire system and the individual components can be monitored at any time using the info icon.

12.1. Access data

Access to FEMS online monitoring is separated according to end customer and installer.

12.1.1. Access for the end customer

Access for the end customer is generated automatically once commissioning is complete and sent to the end customer by email.
The terms and conditions still need to be confirmed here, then the monitoring is available without restrictions.

12.1.2. Access for the installer

The installer access can be created on the FENECON homepage as described in chapter 8.3. Access is required for successful commissioning.

13. Troubleshooting

13.1. FEMS-Online-Monitoring

The system status can be checked after logging in at the top right using the color of the symbol. A green tick indicates that everything is OK, an orange exclamation mark indicates a warning (Warning) and a red exclamation mark indicates an error (Fault).

13.1.1. Fault display

System status: Everything is OK

System state: Warning

System status: Error (Fault)

13.1.2. Troubleshooting

For a detailed overview of an existing warning or error, click on the exclamation mark in the top right-hand corner.

The scroll bar can be used to examine the origin of the warning or error in more detail.
In this example, the error lies with the controller used.

Click on the symbol (arrow down) to display a more detailed error description depending on the error.

In the example above, an incorrect reference for the network counter was intentionally entered for test purposes, which is why the controller fails to run.

Under certain circumstances it can happen that the FEMS is not accessible and the adjacent error message appears.

If the FEMS is offline, follow the steps displayed below the message.

13.2. Inverter FENECON Home 20 & 30

13.2.1. Fault display

Faults are indicated by a red LED next to "SYSTEM".

Figure 25. Fault display on the FENECON Home 20 & 30 Inverter

Rotary field of the Grid connection

Check whether a clockwise rotating field is present at the Grid connection.
Otherwise, contact the FENECON service. The contact details can be found in chapter 12.5. The LEDs display further information on the status of the Inverter.

Table 38. LED status displays — Inverter
Display	Status	Description
		The Inverter is switched on and in standby mode.
		The Inverter is starting and is in self-test mode.
		The Inverter is running normally in grid-parallel or stand-alone mode.
		Overloading of the RESERVE output.
		An error has occurred.
		The Inverter is switched off.
		The Grid is anomalous and the Inverter is in island mode.
		The Grid is normal and the Inverter is in grid-parallel operation.
		RESERVE is switched off.
		The Inverter is not connected to the Internet. Communication takes place via the EMS-Box. Therefore, there is no LED indication here.

13.3. Battery tower

13.3.1. Fault display

Faults are displayed on the FENECON Home 20 & 30 BMS box via a red LED.

The various faults are indicated by LED codes.

Storage unit status

Storage unit information

LEDs

blue/red

1

2

3

4

Boot loader

Start

Master/Slave

Parallel Box

Extension Box

Test mode

Single or parallel connection

SOC Display

Charging

0%-25.0% SOC

25.1%-50.0% SOC

50.1%-75.0% SOC

75.1%-99.9% SOC

100% SOC

Discharge and standby

100%-75.1%

75.0%-50.1%

50.0%-25.1%

25.0%-0%

error

Overvoltage

undervoltage

overtemperature

undertemperature

Overcurrent

SOH too low

Int. communication

Ext. communication

Address error Parallel

Address error modules

BMS box backup

Module backup

contact error

isolation error

BMS error

Blue permanently on

blinking blue

Blue flashing quickly

Red permanently on

13.3.2. Troubleshooting

If faults cannot be rectified or in the event of faults that are not recorded in the fault list, the FENECON service must be contacted. See chapter 12.5.

13.4. Fault list

Table 39. Troubleshooting
Component	Disturbance	Measure
Battery module	The battery module has become wet	Do not touch Contact FENECON service immediately for technical support
Battery module	The battery module is damaged	A damaged battery module is dangerous and must be handled with the utmost care. Damaged battery modules must no longer be used. If you suspect that the battery module is damaged, stop operation and contact FENECON service

13.5. Service

If the system malfunctions, contact FENECON Service:

Phone: +49 (0) 9903 6280-0

E-mail: service@fenecon.de

Our service hours:
Mon. to Thurs. 8 a.m. to 12 p.m. | 1 p.m. to 5 p.m.
Fri. 8 to 12 | 13 to 15 o’clock

14. Technical maintenance

14.1. Tests and inspections

When carrying out inspection work, ensure that the product is in a safe condition. Improperly performed inspections can have serious consequences for people, the environment and the product itself.

Inspection work may only be carried out by trained and qualified specialists.

The maintenance instructions of the component manufacturer must be observed for all individual components.

Check the product and the cables regularly for visible external damage. If components are defective, contact FENECON service. Repairs may only be carried out by a qualified electrician.

14.2. Cleaning

Cleaning agents: The use of cleaning agents can damage the Battery energy storage unit and its parts.
It is recommended that the Battery energy storage unit and all its parts are only cleaned with a cloth moistened with clean water.

The entire product must be cleaned regularly. Only suitable cleaning agents may be used for this purpose.
The cleaning agents must be free of chlorine, bromine, iodine or their salts. Steel wool, spatulas and the like must never be used for cleaning. The use of unsuitable cleaning agents can lead to external corrosion.

14.3. Maintenance

No regular maintenance work needs to be carried out on the system, but check the status of your Storage unit regularly.

14.4. Repairs

The FENECON service must be contacted in the event of defective components.

15. Handover to the operator

15.1. Information for the operator

The following information must be provided to the operator:

Table 40. Information for the operator
Component	Information/Document	Comment
Attachment	FEMS number
Appendix	Login data for online monitoring
Appendix	Instructions

15.2. § Section 14a EnWG

The Inverter can be limited to a maximum reference power of 4.2 kW. The digital input of the EMS must be assigned for this.

2. For detailed information on connecting the FNN control box, please refer to the manufacturer’s installation instructions.

16. Transportation

This section contains information on external and internal transportation of the product.

Transportation is the movement of the product by manual or technical means.

Only use suitable and tested lifting gear and hoists for transportation!

Risk due to lifted Loads!
Standing under suspended Loads is prohibited!

Check that the parts and outer packaging are in perfect condition.

See for yourself that

all parts are firmly screwed together,
the transport lock has been properly fastened,
Wear suitable personal protective equipment for all work.

Ensure that nobody is on or near the product during transportation. Do not use people as counterweights.
Ensure that nobody is under suspended Loads.

Notes:

The batteries are removed or replaced by specialist personnel and transported by a hazardous goods carrier.
Observe the current laws, regulations and standards when transporting the batteries, e.g: Dangerous Goods Transportation Act (GGBefG)

Legal regulations
The product is transported in accordance with the legal regulations of the country in which the product is transported off-site.

17. Dismantling and disposal

17.1. Prerequisites

The power supply to the Battery energy storage unit is interrupted and secured against being switched on again.

Sharp-edged and pointed points
Injuries to the body or limbs due to sharp edges and points.

Always wear suitable protective equipment (cut-resistant protective gloves, safety shoes, safety goggles) when working on the product!

17.2. Dismantling

The storage system may only be dismantled by authorized electricians.
Dismantling work may only be carried out when the system has been taken out of operation.
Before starting disassembly, all components to be removed must be secured against falling, tipping over or moving.
Dismantling work may only be carried out when the system is shut down and only by service personnel.
The dismantling instructions of the component manufacturers (see appendix, Other applicable documents) must be observed.
The current laws, regulations and standards must be observed when transporting the battery modules (e.g. Dangerous Goods Transportation Act - GGBefG).

17.3. Waste disposal

The FENECON Home 20 & 30 must not be disposed of in normal household waste.
The FENECON Home 20 & 30 is RoHS and REACH compliant.
Disposal of the product must comply with local regulations for disposal.
Avoid exposing the battery modules to high temperatures or direct sunlight.
Avoid exposing the battery modules to high humidity or corrosive atmospheres.
Dispose of the storage system and the batteries it contains in an environmentally friendly manner.
Contact FENECON GmbH to dispose of the used batteries.

For the disposal of all components, the usual procedures at the site and the applicable environmental protection regulations for disposal must be applied!
Observe the local regulations and information in the safety data sheets when disposing of 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.