Fronius Wattpilot Flex Home 11 C6 / Home 22 C6 / Pro 11 C6E / Pro 22 C6E

Warnings are intended to warn people of possible injuries and to avoid personal injury and damage to the product. They relate to individual actions with and on the product.

Safety instructions are designed to ensure safe product use. They are preventive and help to inform users about the fundamental risks involved when dealing with the product. They do not refer specifically to individual actions with and on the product.

Warnings are intended to warn people of possible injuries and to avoid personal injury and damage to the product. They relate to individual actions with and on the product.

Safety instructions are designed to ensure safe product use. They are preventive and help to inform users about the fundamental risks involved when dealing with the product. They do not refer specifically to individual actions with and on the product.

Warnings are intended to warn people of possible injuries and to avoid personal injury and damage to the product. They relate to individual actions with and on the product.

Safety instructions are designed to ensure safe product use. They are preventive and help to inform users about the fundamental risks involved when dealing with the product. They do not refer specifically to individual actions with and on the product.

The device has been manufactured in line with the state of the art and according to recognized safety standards.

IMPORTANT!
Labels, warning notices, and safety symbols are located on the device. A description can be found in these operating instructions.

In certain cases, even though a device complies with the standard limit values for emissions, it may affect the application area for which it was designed (e.g., when there is equipment that is susceptible to interference at the same location or if the site where the device is installed is close to either radio or television receivers). If this is the case, the operator is obliged to take action to rectify the situation.

During operation, due to the high electrical voltages and currents, local electromagnetic fields (EMF) are generated. These occur in the immediate vicinity of the inverter and the Fronius system components. Electromagnetic fields are also present in the area of the PV modules and their supply lines.

As long as the intended use and a minimum distance of 20 cm are observed, all limit values for human exposure are observed.

If the limit values are complied with, according to current scientific knowledge, no negative health effects from EMF exposure are to be expected. For persons with prostheses¹⁾ or active physical aids²⁾, there is a possible health risk in the vicinity of photovoltaic system components. To avoid possible health risks, consult with the responsible doctor.

¹⁾ e.g., implants or metal parts

²⁾ e.g., pacemaker, insulin pump, hearing aid, etc.

During operation, due to the high electrical voltages and currents, local electromagnetic fields (EMF) are generated. These occur in the immediate vicinity of the inverter and the Fronius system components. Electromagnetic fields are also present in the area of the PV modules and their supply lines.

As long as the intended use and a minimum distance of 20 cm are observed, all limit values for human exposure are observed.

If the limit values are complied with, according to current scientific knowledge, no negative health effects from EMF exposure are to be expected. For persons with prostheses¹⁾ or active physical aids²⁾, there is a possible health risk in the vicinity of photovoltaic system components. To avoid possible health risks, consult with the responsible doctor.

¹⁾ e.g., implants or metal parts

²⁾ e.g., pacemaker, insulin pump, hearing aid, etc.

The device has a built-in residual current protection module with residual current detection (IΔn = 20 mA AC and 6 mA DC).

The residual current detection tripping characteristic is as follows.

	max. normative DC
	max. normative AC
	typ. DC of sensor
	typ. AC of sensor

The device has an integrated surge protection device (SPD). This can negatively affect the insulation measurement. According to normative specifications, carry out the insulation measurement with a reduced voltage of 250 V DC and a resistance of >=1 MΩ. During the measurement, the Wattpilot displays the status code Ground fault detected (see Status codes).

Alternatively, disconnect the Wattpilot from the power supply. Carry out the insulation measurement directly on the grid lead with a measurement voltage of 500 V DC.

Technical data, warning notices, labels, and safety symbols are located on the Fronius Wattpilot Flex. Do not remove or paint over the information. The notices and symbols warn against incorrect operation that may result in serious injury and damage.

Symbols on the device:
	CE label – confirms compliance with applicable EU directives and regulations. The product has been tested by a specific notified body.
	WEEE marking – waste electrical and electronic equipment must be collected separately and recycled in an environmentally sound manner in accordance with the European Directive and national law. This product contains a built-in type CR2477 lithium-ion battery. The battery may only be removed or replaced by a qualified technician. Have the battery removed before disposing of the device. Do not dispose of the battery with household waste. It can be disposed of at a designated collection point or returned to the distributor free of charge.
	RCM marking – tested according to the requirements of Australia and New Zealand.
	Charging port marking – charging station identifier for electric vehicle charging. Category C corresponds to the type 2 plug and a maximum charging voltage of 480 V.

Information on MID-compliant measuring device (Fronius Wattpilot Flex Pro)

Technical data, warning notices, labels, and safety symbols are located on the Fronius Wattpilot Flex. Do not remove or paint over the information. The notices and symbols warn against incorrect operation that may result in serious injury and damage.

Symbols on the device:
	CE label – confirms compliance with applicable EU directives and regulations. The product has been tested by a specific notified body.
	WEEE marking – waste electrical and electronic equipment must be collected separately and recycled in an environmentally sound manner in accordance with the European Directive and national law. This product contains a built-in type CR2477 lithium-ion battery. The battery may only be removed or replaced by a qualified technician. Have the battery removed before disposing of the device. Do not dispose of the battery with household waste. It can be disposed of at a designated collection point or returned to the distributor free of charge.
	RCM marking – tested according to the requirements of Australia and New Zealand.
	Charging port marking – charging station identifier for electric vehicle charging. Category C corresponds to the type 2 plug and a maximum charging voltage of 480 V.

Information on MID-compliant measuring device (Fronius Wattpilot Flex Pro)

The conventions regarding how information is presented in the document, which are set out below, have been defined in order to increase the readability and comprehensibility of the document.

Application notes

IMPORTANT! Indicates application notes and other useful information. It does not indicate a harmful or dangerous situation.

Software

Software functions and elements of a graphical user interface (e.g., buttons, menu items) are highlighted in the text with this mark up.

Example: Click Save.

Instructions for action

The use of other accessory components such as charging cable adapters or cable extensions is prohibited.

The full text of the EU Declaration of Conformity is available on the following website:www.fronius.com

Compatibility with the connected devices (see list below) and a Fronius Smart Meter at the feed-in point are prerequisites for using certain functions (e.g., PV surplus).

Suitable Fronius inverters

*Requirement:

**Requirement:

Suitable generators can be PV inverters from third-party manufacturers, for example. A prerequisite for compatibility with external generators is that no other self-consumption controllers (e.g., battery, Power-to-Heat) are operated in parallel. This can negatively affect PV optimization. The proportion of energy consumed by other loads is not taken into account in the Fronius Solar.wattpilot app.

Requirement:

* For connection via Modbus RTU, the generator requires a Fronius Datamanager Box 2.0 (item number 4,240,125).

For more information, see Data communication with inverter.

The following link provides current webinars and how-to videos for the Fronius Wattpilot.

Fronius Wattpilot YouTube playlist

This document provides detailed information and instructions to ensure that people can use the machine safely and efficiently.

Regardless of any qualifications, only perform the activities listed in this document.

The definition of professional qualifications and their applicability are subject to national law.

¹⁾ TCP/IP - Transmission Control Protocol/Internet Protocol
²⁾ MQTT - Message Queuing Telemetry Protocol

When you connect your device (and any associated devices) to the internet, the following device and operating data (device ID/identifier, device IP address, device time, configuration settings, hardware and software information, device status log files, serial number) is sent automatically to

Fronius International GmbH, Froniusstraße 1, 4643 Pettenbach, Austria, telephone +43(0) 7242241-0, email: contact@fronius.com (controller)

and stored.

The processing of this device and operating data is carried out for the purpose of ensuring the operational safety of the device (time synchronization, provision of updates). This processing is therefore necessary for the functionality of the device and thus for the fulfillment of the contract (Art. 6 (1) (b) GDPR).

If you do not wish to have such data processed, you must manually disable the device's internet connection.

In addition, the device and operating data is also processed for the purpose of providing services as part of a supplementary digital service for your device (such as solar.web or similar) as soon as you have registered your device with such a digital service (identification). This data is processed to provide the requested digital services and is therefore necessary for the fulfillment of the contract (Art. 6 (1) (b) GDPR).

Furthermore, this data processing is also carried out for maintenance and support purposes and for handling customer concerns as well as in warranty and guarantee cases (only in individual cases and given connection between device and internet). In this context, the device and operating data may also be passed on to our cooperation partners (third-party providers and suppliers). The processing of this data is necessary for maintenance and support purposes or for processing warranty and guarantee cases and thus for the fulfillment of the contract (Art. 6 (1) (b) GDPR).

Device and operating data are also processed for analysis and diagnostic purposes in order to gain insights into the functionality of the devices and improve them accordingly. This data processing is based on our legitimate interest (Art. 6 (1) (f) GDPR).

We store this data for as long as it is necessary to fulfill the existing contract with you. Any storage beyond this is carried out for legal reasons or if we have a legitimate interest in doing so. For more information on data processing for the solar.web-digital service, as well as our general privacy policy and your rights as a data subject, please visit https://www.fronius.com.

Regular updates keep the device up to date to ensure the best possible performance and security. It is recommended to activate automatic updates in the Fronius Solar.wattpilot app (see Software version).

Fronius International GmbH retains the copyrights of these operating instructions.

Text, illustrations, and other media correspond to the technical state of the art at the time of publication. Fronius reserves the right to make changes. If you have any suggestions for improvement or have found a mistake in this document, we would be most grateful for your comments.

Fronius Wattpilot Flex is a permanently mounted charging station for charging electric vehicles for fixed connection to an AC/three-phase network.

The Wattpilot may only be used for the purpose of charging battery-powered electric vehicles and plug-in hybrid vehicles. The device complies with the criteria for electric vehicle charging stations (AEVCS) in accordance with DIN EN IEC 61439-7.

The Wattpilot Flex Home 22 CP6/Pro 22 CP6E device variants have an integrated shutter on the live contacts of the charging plug.

The Wattpilot Flex Pro 11 C6E, Wattpilot Flex Pro 22 C6E, and Wattpilot Flex Pro 22 CP6E devices meet the requirements for conformity with calibration law, which means that all measurements and billing of the charged energy are carried out precisely and in accordance with the law.

Fronius Wattpilot Flex is a permanently mounted charging station for charging electric vehicles for fixed connection to an AC/three-phase network.

The Wattpilot may only be used for the purpose of charging battery-powered electric vehicles and plug-in hybrid vehicles. The device complies with the criteria for electric vehicle charging stations (AEVCS) in accordance with DIN EN IEC 61439-7.

The Wattpilot Flex Home 22 CP6/Pro 22 CP6E device variants have an integrated shutter on the live contacts of the charging plug.

The Wattpilot Flex Pro 11 C6E, Wattpilot Flex Pro 22 C6E, and Wattpilot Flex Pro 22 CP6E devices meet the requirements for conformity with calibration law, which means that all measurements and billing of the charged energy are carried out precisely and in accordance with the law.

The Wattpilot is equipped with the following wired data communication interfaces:

The connection options are described in the chapter Wall mounting and data cabling.

Data communication via WiFi is also possible.

Behind the symbol    is the card reader for reading ID chips and the reset card.

The card reader uses RFID (radio-frequency identification). RFID is the transmitter‑receiver technology for automatic and contactless identification with radio waves.

The buttons are actuated by touch. Touching them while wearing gloves can lead to limited results due to the capacitive touch detection.

Switch the operating mode by touching the buttons. The following charging modes are available:

Indicator		Operating mode
		Standard Mode The Wattpilot is in Standard Mode. The indicator above the operating mode button lights up white.
		Eco Mode The Wattpilot is in Eco Mode. The indicator above the operating mode button lights up white. The indicator flashes white (see chapter Status codes).
		Next Trip Mode The Wattpilot is in Next Trip Mode. The indicator above the operating mode button lights up white. The indicator flashes white (see chapter Status codes).

The LED status indicator on the Wattpilot indicates whether the system is switched on and shows the current status of the Wattpilot.

LED		Meaning
		Starting The Wattpilot is starting up or restarting. The indicator lights up in rainbow colors.
		Ready The Wattpilot is ready for operation. The more LEDs that light up, the higher the set charging current. A few blue LEDs light up = low charging current (e.g., 6 A). Several/all blue LEDs light up = high charging current (e.g., 32 A).
		Authentication The Wattpilot must be authenticated via the app or an ID chip. The LEDs light up blue, white LEDs run in a quarter circle from the top and bottom towards each other.
		Wait for vehicle The Wattpilot recognizes the connected vehicle and the set charging parameters. Charging has been enabled by the charging station but not yet started by the vehicle. A few yellow LEDs light up when the charging current is low. Several/all yellow LEDs light up when the charging current is high.
		Charging The LEDs indicate the energy sources. Non-illuminated LEDs run in a circle and indicate the assigned phases. Either 1-phase, 2-phase, or 3-phase. Yellow LEDs = energy from PV surplus Green LEDs = energy from the battery White LEDs = energy from the grid
		Charging plug not plugged in The LEDs indicate the energy source of the last charging process. The indicator will turn off after 30 seconds. Yellow LEDs = energy from PV surplus Green LEDs = energy from the battery White LEDs = energy from the grid
		Charging finished The charging process is complete. All LEDs light up green.
		ID chip detected The Wattpilot has detected an authorized ID chip. Top LEDs light up green.
		Invalid value The Wattpilot displays an invalid input. The operating mode selection was not permitted or an ID chip was detected but not authorized. Top LEDs light up red.
		Grounding test deactivated The grounding test is deactivated. LEDs light up at the top, bottom, left, and right.
		Internal communication error The Wattpilot displays an internal communication error. The error code is displayed in the app. For more information, see Status codes. All LEDs flash red.
		Residual current detected The Wattpilot has detected a residual current (≥ 6 mADC or ≥ 20 mAAC). Restart the Wattpilot. For more information, see Status codes. The LEDs light up pink, the LEDs at the top flash red.
		Ground fault detected The grounding of the supply line to the Wattpilot is faulty. Check the grounding of the supply line. For more information, see Status codes. The LEDs light up green and yellow, the LEDs at the top flash red.
		At least one phase of the power supply is missing The phase(s) of the supply line to the Wattpilot has/have failed. Check the phase(s) of the supply line. For more information, see Status codes. The LEDs light up blue, the LEDs at the top flash red.
		Temperature too high The temperature of the Wattpilot is too high. The charging current is reduced. For more information, see Status codes. The LEDs light up yellow, the LEDs at the top flash red.
		Charge controller error The charge controller is not working properly. For more information, see Status codes. The LEDs light up red at the bottom and yellow at the top for 1 second.
		Update The Wattpilot firmware is being updated. The update can take several minutes. Do not unplug the charging station. All LEDs flash pink, the progress of the update is indicated by yellow LEDs.
		Update successful The LEDs light up alternately pink and green.
		Update failed The LEDs light up alternately pink and red.
		Reset card detected The Wattpilot has detected the reset card and the settings are being reset. All LEDs light up red for 2 seconds.
		Tamper detection The Wattpilot has detected the device opening. The Wattpilot has not been correctly attached. The LEDs light up red at the top and purple at the bottom.

The display is located below the operating mode buttons and alternately displays the following values.

Session kWh
Displays the charged energy of the current charging process.

Total kWh
Displays the total charged energy of all charging processes.

Power kW
Displays the current charging power.

An ID chip enables personalized access to the Fronius Wattpilot. The ID chip is used for authentication and recording user-dependent charging amounts.

To set this up, activate authentication in the Access > Authentication menu in the app (see Authentication). Charging with authentication activated is possible after scanning the supplied ID chip or by confirming in the app. To do this, hold the ID chip just in front of the card reader on the Wattpilot.

A name can be assigned to each ID chip. The stored charging amount per ID chip can be seen in this menu (see RFID chips).

No authentication is required to assign the charging amount to the ID chips.

The reset card resets all settings (e.g., access management, WiFi, and LED settings) to the factory settings. The device can also be reset using the Fronius Solar.wattpilot app. The paired ID chips, the associated charging amounts, and the settings in the Safety and grid menu are still stored.

The following information is printed on the reset card.

Resetting the Wattpilot

NOTE

Keep the reset card safe!

The reset card contains all access data.

TIP: Place the reset card in the supplied self-adhesive transparent bag and keep it in a safe place.

The Wattpilot works in Standard Mode regardless of the available PV surplus or electricity tariffs. In combination with a Fronius Smart Meter IP, it is also possible to use PV surplus from suitable third-party devices. Switch between the different charging modes (see Different charging modes) by pressing an operating mode button (see Operating mode buttons).

The Wattpilot works in Standard Mode regardless of the available PV surplus or electricity tariffs. In combination with a Fronius Smart Meter IP, it is also possible to use PV surplus from suitable third-party devices. Switch between the different charging modes (see Different charging modes) by pressing an operating mode button (see Operating mode buttons).

The Fronius Wattpilot automatically or manually switches between 1‑phase and 3‑phase charging (see PV surplus).

The automatic phase changeover enables charging with a low start-up power (1‑phase with 1.4 kW) in the case of PV surplus.

1‑phase charging has the advantage that the charging power can be regulated in smaller increments (0.23 kW) and a small PV surplus is used more efficiently.

For higher PV surplus, 3‑phase charging is preferred. Higher maximum charging power levels are achieved in this way.

To further optimize the charging process, define time intervals for falling below the phase changeover limit value as well as for the pause between the phase changeover.

Unbalanced load management limits the total charging current. The unbalanced load remains below the desired value, which is specified, for example, by the utility. The maximum phase unbalanced load can be set by a qualified technician in accordance with the applicable regulations (see Grid settings).

Charging with PV surplus can be activated and adjusted in the Fronius Solar.wattpilot app (see Tariff).

The PV surplus function uses excess energy from a photovoltaic system and, if available, a battery. Details on compatibility with the PV system can be found under Tariff and Suitable generators from third-party manufacturers.

Setting limit values ensures the distribution of the PV surplus power to the loads. A battery is charged to the desired state of charge, hot water is heated to the target temperature with the Fronius Ohmpilot, and a vehicle is charged.

Set a Start value in kW for the charging of the vehicle. If the PV surplus is above this value, the Wattpilot starts charging the vehicle with minimum current.

Enter a Phase switch level (specified in kW), at which the Wattpilot switches from 1‑phase to 3‑phase charging.

Configure the Start value and Phase switch level in the Tariff menu.

The power level is regulated in 1-ampere increments. At nominal voltages of 230 and 400 V, this corresponds to 0.23 kW for 1-phase and 0.69 kW for 3-phase charging. The table shows an overview of charging current and charging power.

Example

	Photovoltaic generation
	Electric vehicle

The figure illustrates the behavior with a set start-up power level of 1.4 kW and a 3‑phase power level of 4.14 kW. If the PV surplus is less than 1.4 kW, the vehicle does not charge.

If the PV surplus is between 1.4 and 4.2 kW, the Wattpilot regulates the charging power in 0.23 kW increments.
If the PV surplus is above 4.14 kW, the Wattpilot switches from 1‑phase charging to 3‑phase charging and regulates the charging power in 0.69 kW increments.

The Ohmpilot and PV battery SOC menu tiles in the Fronius Solar.wattpilot app (see chapter Start page and navigation elements) influence the priority of the Wattpilot. The level of the selected limit values defines under which conditions the charging of the electric vehicle starts. The load management settings on the user interface of the inverter must also be taken into account.

IMPORTANT!
The I/O power management of the inverter is not suitable for load management of the Wattpilot. The priorities of the loads are not clearly assigned.

Ohmpilot

Set a temperature limit value on the start page of the Fronius Solar.wattpilot app. When the hot water has reached this temperature, the charging process starts with PV surplus.

PV battery SOC

The SOC or State of Charge is the state of charge of the stationary battery. Set the following limit values for the use of the energy from the battery for charging on the start page of the Fronius Solar.wattpilot app:

Example
Charging the electric vehicle takes priority over the battery and the Ohmpilot. The Charge above parameter is set to 0%. The limit value of the Ohmpilot is set to 0 °C. The electric vehicle is charged with PV surplus. The state of charge of the battery and the temperature of the Ohmpilot are not relevant.

*Please see the operating instructions for the inverter for a list of compatible batteries.

Tariff zones
If the energy supplier offers a flexible electricity tariff, this function can be used. This is taken into account when using Eco Mode and Next Trip Mode.

Provider
A prerequisite is an electricity retailer that bills flexible electricity tariffs hourly via the electricity exchange, e.g.:

The Wattpilot obtains the tariffs of the electricity exchange directly from the Internet. It is possible to specify a price limit. As soon as the price is below this limit, charging starts in Eco Mode. In Next Trip Mode the Wattpilot charges with the cheapest electricity tariff that is available in the defined charging period.

All displayed prices correspond to the current tariffs of the electricity exchange. Additional costs may apply depending on the provider.

Example

The figure shows the development of the electricity price (cents per kWh) of an electricity retailer within 24 hours. The hourly tariffs are retrieved from the electricity exchange at a specific time for the next day.

The Wattpilot Flex Pro meets all the requirements of a MID-compliant measuring device. In addition, the following aspects must be taken into account with regard to compliance with measurement and calibration law:

When the Wattpilot is connected to the Internet, the device supports the Dynamic Load Balancing function (dynamic load management). The function is available with the following system components:

Activation

When the Wattpilot is connected to the Internet, the device supports the Dynamic Load Balancing function (dynamic load management). The function is available with the following system components:

Activation

Dynamic Load Balancing manages the charging current at the grid connection point and limits the charging current if there is a risk of overloading the grid connection. The function takes into account the electricity generated by the photovoltaic system and other generators in the system as well as the consumption. Prioritization can be set up for several Wattpilots. The dynamic control uses the maximum possible charging current.

Dynamic Load Balancing monitors the available current per phase (including PV surplus) at the grid connection point and dynamically distributes this to one or more Wattpilots. The Wattpilots are supplied with the maximum available current. The delivery current is not exceeded and can be limited for the Wattpilots.

Set the maximum delivery current to match the post-meter fuse.

Control system example

(1)	Photovoltaic system
(2)	Inverter
(3)	Loads
(4)	Fronius Smart Meter
(5)	Fronius Wattpilot
(6)	Electric vehicle
(7)	Grid connection point

In the control system example, the energy drawn from the public grid is limited to 32 A. 8 A are generated by the PV system. Of a total of 40 A, 20 A are accounted for by the loads in the household. The Dynamic Load Balancing distributes 20 A to the connected Wattpilots. This enables charging of, for example, two electric vehicles with 10 A each.

In the case of systems with multiple Wattpilots, charging priorities can be set. The charging stations (electric vehicles) with a higher priority are supplied with current first; charging stations with a lower priority have to wait. If there is current left over, it is shared among the lower-priority Wattpilots.

The vehicles that are to be charged first and with the maximum available current must be assigned a high priority. A low priority can be assigned to vehicles that should wait to charge until sufficient current is available.

In the case of Wattpilots with the same priority, the available current is shared equally.

Example 1

Distribution of the charging current with three Wattpilots with different priorities (one with high priority, two with medium priority).

Example 2

Distribution of the charging current with three Wattpilots (X, Y, Z) with the same priority. Each Wattpilot is assigned the minimum charging current (unless the minimum charging current is no longer available). If there is charging current left over, it is distributed wherever possible, starting with the first Wattpilot in the loop.

Wattpilot X has a minimum charging current of 6 A, Wattpilot Y 10 A and Wattpilot Z 6 A. There is 15 A of charging current to be distributed. The charging current is distributed as follows.

The 15 A charging current was distributed among the equally prioritized Wattpilots and charged. As soon as charging current is available again, the electric vehicle is charged at Wattpilot Y.

Install the Wattpilot indoors or outdoors, in a location with or without restricted access. The device does not support an optional ventilation function.

The following additional criteria must be taken into account when choosing a location:

		The Fronius Wattpilot is suitable for operation outdoors, with and without direct sunlight. When in direct sunlight, output is reduced for the following charging currents: Reduction from 3x32 A to 3x27 A at a temperature of 45 °C over a period of 1 hour.
		The Wattpilot is suitable for operation in a well-ventilated indoor area.
		Do not operate the Wattpilot in areas where there is an increased risk from ammonia gases.

Environmental conditions, see Technical data.

Install the Wattpilot indoors or outdoors, in a location with or without restricted access. The device does not support an optional ventilation function.

The following additional criteria must be taken into account when choosing a location:

		The Fronius Wattpilot is suitable for operation outdoors, with and without direct sunlight. When in direct sunlight, output is reduced for the following charging currents: Reduction from 3x32 A to 3x27 A at a temperature of 45 °C over a period of 1 hour.
		The Wattpilot is suitable for operation in a well-ventilated indoor area.
		Do not operate the Wattpilot in areas where there is an increased risk from ammonia gases.

Environmental conditions, see Technical data.

Install the Wattpilot indoors or outdoors, in a location with or without restricted access. The device does not support an optional ventilation function.

The following additional criteria must be taken into account when choosing a location:

		The Fronius Wattpilot is suitable for operation outdoors, with and without direct sunlight. When in direct sunlight, output is reduced for the following charging currents: Reduction from 3x32 A to 3x27 A at a temperature of 45 °C over a period of 1 hour.
		The Wattpilot is suitable for operation in a well-ventilated indoor area.
		Do not operate the Wattpilot in areas where there is an increased risk from ammonia gases.

Environmental conditions, see Technical data.

Mount the Wattpilot on the optionally available support foot (item number 4,240,196) to allow for flexible positioning. Up to two devices can be attached to the support foot. Observe the criteria for Selecting a location.

Never pull the plug out of the plug connection by the cable!

Observe the specifications of the utility regarding 1-phase charging and the asymmetrical network load that may result (see Grid settings).

Never pull the plug out of the plug connection by the cable!

Observe the specifications of the utility regarding 1-phase charging and the asymmetrical network load that may result (see Grid settings).

Single-core	Multi-stranded/fine-stranded with ferrule

Connect round copper conductors to the terminals of the Wattpilot Flex as described in chapter Installing the grid connection . Pay attention to the cable temperature when selecting a cable:

Make sure that the mounting bracket is not warped or deformed.

1

Align the wall bracket at the top horizontally with the spirit level and draw four drill holes.

2

Drill four holes. Maintain a distance of 0.8-1.5 m between the mounting bracket and the ground. For installations in Sweden, the minimum distance to the ground is 1.4 meters.

3

Data communication via cable (RJ45)

Insert the data communication cable into the housing from behind and connect it to the RJ45 connection. Alternatively, establish a connection via WiFi.

4

Data communication via cable (LSA)
Insert the data communication cable into the housing from behind. Connect it to the LSA terminals. Alternatively, establish a connection via WiFi.

Before final installation of the device on the wall, feed in the mains cable if the cable is guided into the housing from the rear.

5

Insert the wall plugs into the drill holes and fasten the mounting bracket with the screws supplied (see Scope of supply).

6

Using a cable tie, secure the data communication cable in one of the positions shown above.

The insulated switching contact of the digital output can be used, among other things, for the following regulatory requirements:

1

Connect a 2-pin cable to the shunt trip.

2

Insert the cable into the housing and connect it to the digital output.

Fit the charging plug holder as follows.

1

Mark the drill holes and drill the holes. Insert the wall plugs into the drill holes and secure the cable bracket.

The Fronius Solar.wattpilot app can be used to commission, configure, operate, and update the Wattpilot. The app visualizes charging processes and saves the records (e.g., for billing purposes). The app is available for Android™ and iOS^®.

The Fronius Solar.wattpilot app can be used to commission, configure, operate, and update the Wattpilot. The app visualizes charging processes and saves the records (e.g., for billing purposes). The app is available for Android™ and iOS^®.

The Fronius Solar.wattpilot app is available on the following platforms.

On end devices with an iOS operating system, enable access for the Fronius Solar.wattpilot app:

To add new or already connected devices in the Fronius Solar.wattpilot app:

Charging with PV surplus (see PV surplus) is possible in combination with a compatible Fronius inverter (see Suitable inverters). This function can be used with external inverters (see Suitable generators from third-party manufacturers) if a Fronius Smart Meter IP 5kA-3 is installed. As soon as an inverter is in the network, the Wattpilot automatically pairs with the first inverter found.

Open the Fronius Solar.wattpilot app to pair another inverter.

In backup power mode, select the maximum charging current so that the maximum output power of the inverter is not exceeded.

IMPORTANT!
Check whether the electric vehicle allows charging at 53 Hz. If necessary, adjust the Backup power frequency offset parameter on the user interface of the inverter.

In Germany, to comply with the documentation obligation set out in Section 14a of the EnWG (law on the fuel and electricity industries) the Wattpilot must be permanently connected to the Internet in order to be able to verify implementation of the external control commands.

Charging cable adapters and cable extensions can negatively affect the function of the device or the charging process and must not be used.

How a charging process is started depends on whether authentication with an ID chip is required or not. Manage authentication in the Fronius Solar.wattpilot app under Settings > Authentication (see Authentication).

When the vehicle battery is fully charged, the vehicle stops charging.

The images show the start page of the Fronius Solar.wattpilot app.

	Tap on the device name to manage and add devices.
	Charging process view: State of charge Distribution of the charging power to the battery, the PV system surplus, and the grid consumption. Shows the current charging power, the charging time, and the charged energy. Tap Start/Pause to start or pause the charging process.
	Charging mode: Select a charging mode (see Different charging modes).
	In Next Trip Mode, under Departure, specify the desired amount of energy in a kilometer range and the time.
	Set the charging speed (see Current level).
	Navigate from the Home start page to the following menu areas: History (see History) Settings (see Settings)

	Swipe left in the charging process view.
	Shows the set parameters for the use of PV surplus and energy from the battery (see PV surplus). Threshold settings for the use of PV surplus. If a Fronius Ohmpilot is installed in the system, the defined temperature limit value is displayed.

The images show the start page of the Fronius Solar.wattpilot app.

	Tap on the device name to manage and add devices.
	Charging process view: State of charge Distribution of the charging power to the battery, the PV system surplus, and the grid consumption. Shows the current charging power, the charging time, and the charged energy. Tap Start/Pause to start or pause the charging process.
	Charging mode: Select a charging mode (see Different charging modes).
	In Next Trip Mode, under Departure, specify the desired amount of energy in a kilometer range and the time.
	Set the charging speed (see Current level).
	Navigate from the Home start page to the following menu areas: History (see History) Settings (see Settings)

	Swipe left in the charging process view.
	Shows the set parameters for the use of PV surplus and energy from the battery (see PV surplus). Threshold settings for the use of PV surplus. If a Fronius Ohmpilot is installed in the system, the defined temperature limit value is displayed.

The images show the start page of the Fronius Solar.wattpilot app.

	Tap on the device name to manage and add devices.
	Charging process view: State of charge Distribution of the charging power to the battery, the PV system surplus, and the grid consumption. Shows the current charging power, the charging time, and the charged energy. Tap Start/Pause to start or pause the charging process.
	Charging mode: Select a charging mode (see Different charging modes).
	In Next Trip Mode, under Departure, specify the desired amount of energy in a kilometer range and the time.
	Set the charging speed (see Current level).
	Navigate from the Home start page to the following menu areas: History (see History) Settings (see Settings)

	Swipe left in the charging process view.
	Shows the set parameters for the use of PV surplus and energy from the battery (see PV surplus). Threshold settings for the use of PV surplus. If a Fronius Ohmpilot is installed in the system, the defined temperature limit value is displayed.

The records of charging processes and charged energy can be found in the History menu.

All configuration options for charging the electric vehicle, data communication, permissions, and handling of the Fronius Solar.wattpilot app can be found in the Settings menu.

In Standard Mode, the Wattpilot charges at the preset amperage (e.g., 16 A). A PV surplus and the electricity tariff are not taken into account. Current levels with associated charging current can be defined in the Current level menu. Charging takes place with grid current if necessary.

In Standard Mode, the Wattpilot charges at the preset amperage (e.g., 16 A). A PV surplus and the electricity tariff are not taken into account. Current levels with associated charging current can be defined in the Current level menu. Charging takes place with grid current if necessary.

In Eco Mode a vehicle is only charged if there is surplus energy available from the photovoltaic system and/or the electricity price is below a defined limit value.

Next Trip Mode regulates the charging of the electric vehicle until the next planned trip, taking into account PV surplus and a flexible electricity tariff. The following parameters are relevant for charging:

The Wattpilot calculates the set average consumption. The time charging starts is selected in such a way that the desired charging amount is charged at least one hour before the charge end. The actual state of charge of the electric vehicle battery is not read out. The set charging amount is charged in addition to the charging amount available in the electric vehicle.

After activating the mode, charging starts briefly to calculate the charging schedule taking into account the possible charging power. If no flexible electricity tariff is activated in the Tariff menu, charging is started at the latest possible time. Any PV surplus is used and the electric vehicle battery is protected. If no time is provided for the calculation of the charging schedule, charging starts immediately.

If the charging cable is disconnected and reconnected while Next Trip Mode is activated, the calculation is repeated. The set charging amount is charged in addition to the charging amount already available. Recalculation also takes place in the event of changes to the settings of the Fronius Solar.wattpilot app.

Prerequisite
The function is available when a battery is present in the photovoltaic system and Eco Mode is selected.

If the Energy Cost Assistant function is active on the inverter, the inverter can temporarily block the battery discharge, for example, to charge the battery from the public grid at a low electricity price.

Function
The energy for charging is used directly from the battery. As a result, low-cost energy can be obtained, even if no PV surplus is available. The settings can be used to define how much residual energy remains in the battery. In addition, you can set whether the charge from the battery should be used once, or whether it should continue until the vehicle is unplugged.

It can take up to 10 minutes for the battery to discharge at maximum power. The state of charge of the battery at the inverter must be greater than the Discharge until limit value.

The Scheduler limits charging to certain times for the following application examples:

For optimum charging behavior, please note the information in the operating instructions for the vehicle.

In this menu, select Standard and set the following parameters under Advanced settings. For optimum charging behavior, please note the information in the operating instructions for the vehicle.

Vehicle – Advanced settings

The Wattpilot can also individually adapt the charging process to the requirements of the vehicle. Under Charging behavior, select a vehicle from the list. The Wattpilot takes over all vehicle-specific parameters.

Activate the Use PV surplus slider to use the excess energy of the PV system for charging.

Inverter/Smart Meter IP
Select an available inverter or Smart Meter IP for connection to the Wattpilot. A connected device is displayed.

PV surplus start value
Define a limit value from which the available energy of the PV system is used for charging. In addition, specify a phase switch level for the switch from single-phase to three-phase charging. If "0" is set, the Wattpilot starts charging even if no PV surplus is available.

PV battery threshold
If a battery is integrated into the PV system, the following limit values can be set:

The set limit values are only active in Eco Mode and Next Trip Mode.

Ohmpilot threshold
If a Fronius Ohmpilot with a temperature sensor is installed in the PV system, set a limit value for the temperature here. When the set temperature is reached, the excess energy of the PV system is used for charging.

PV surplus – Advanced settings

The power is regulated in 1 ampere increments. Despite the control behavior, there is grid consumption or feed-in of the PV surplus between the increments.

If zero feed-in is activated, the Prefer from grid option is automatically activated to meet the regulatory requirements. PV optimization control may be restricted.

In the charging modes Flexible electricity price and Next Trip Mode vehicles can be charged from the grid at favorable rates with the Tariff function. A contract with a provider of a flexible electricity tariff is required.

Next Trip Mode only takes into account the cheapest charging times in the available time span.

Next Trip Mode

	Photovoltaic generation
	Electric vehicle
	Household consumption

There is a PV system, but no flexible electricity tariff. The daily journey to work starts at 08:00 hrs. The distance is 50 km round trip. The kilometers and the departure time have been entered in the Fronius Solar.wattpilot app. Charging starts at 15:00 hrs with PV surplus. The remaining charging amount is charged using grid current at the latest possible time in the early hours of the morning. The charge is completed one hour before departure.

Eco Mode

	Photovoltaic generation
	Electric vehicle
	Household consumption

A PV system and a flexible electricity tariff are available. In Eco Mode, the electric vehicle is connected to the Wattpilot at around 15:00 hrs, as although a fixed additional range for the electric vehicle is not necessary, cheaper electricity is to be used for charging. In the Fronius Solar.wattpilot app, the PV surplus and/or flexible electricity tariff must be activated and set in the Charging menu. Household consumption is covered by photovoltaic generation and the electric vehicle is charged with the PV surplus. Charging takes place using the PV surplus until around 20:00 hrs. Between 02:00 and 05:00 hrs, the electricity price falls below the defined price limit. The electric vehicle is charged with cheap electricity during this period.

Charging in Eco Mode

PV surplus with phase switching

	Photovoltaic generation
	Electric vehicle

The figure illustrates the behavior of the Wattpilot with a set start-up power level of 1.4 kW and a 3‑phase power level of 4.2 kW. If the PV surplus is less than 1.4 kW, the vehicle does not charge.

If the PV surplus is between 1.4 kW and 4.2 kW, the Wattpilot regulates the charging power in 0.23 kW increments.
If the PV surplus is above 4.2 kW, the Wattpilot switches from 1‑phase charging to 3‑phase charging and regulates the charging power in 0.69 kW increments.

Charging from the battery

The function is available when a battery is present in the photovoltaic system and Eco Mode or Next Trip Mode is selected.

In this example, the battery is 80% charged. Due to the current weather conditions, no additional energy is stored. The vehicle is charged up to the discharging limit (e.g., 20%). In addition, the settings stipulate that the discharge is continued until the vehicle is unplugged (see Charging from the battery). If the weather conditions change and PV surplus is fed into the battery again, the vehicle charges until it is unplugged.

Change the name of the Wattpilot.

Change the name of the Wattpilot.

Set the LED brightness values. Activate Switch off LEDs after 10 s in standby (optional).

An individual color scheme can be set for the different operating states of the Wattpilot. The color code of the selected color is displayed.

Set the time zone. Activate Automatically switch to daylight saving time to automatically set summer and winter time.

The password protects against unauthorized access.

Password policy

The password protects against unauthorized access.

Password policy

It is possible for up to 10 commercially available RFID chips to be used. The RFID chip is used for authentication and to record each user's charging processes. The chip can be paired with several devices. The chips and the charging amount remain stored when the device is reset to factory settings. The supplied chips have already been paired.

Configure the following connection options:

Configure the following connection options:

The charging point communication standard OCPP (Open Charge Point Protocol) enables communication between the Fronius Wattpilot and a management system. Setup is carried out via a remote server provider or locally.

Activate OCPP
Activation or deactivation of OCPP.

Address
Enter the address of the OCPP server made available by the provider in the OCPP menu of the app.

Alternative ID
An alternative ID can be stored in the History menu in case a charging process is started without authentication with an ID chip.

Phase assignment
Settings for the phase assignment of the Wattpilot in alignment with a Fronius Smart Meter. This is, for example, necessary for the load balancing to function correctly.

The Wattpilot's current firmware is loaded via the Internet. The Firmware version menu displays which firmware version is installed and whether an update is available.

Update the Fronius Solar.wattpilot app via the respective platform (Google Play Store, App Store).

Beta
New beta versions of the firmware can be pre-installed and tested. Test feedback on the beta versions is expressly welcomed.

Changing firmware
The old firmware remains stored on the Wattpilot after an update. In the event of an error, it is possible to switch between the old and the new firmware version even without an Internet connection.

The Wattpilot's current firmware is loaded via the Internet. The Firmware version menu displays which firmware version is installed and whether an update is available.

Update the Fronius Solar.wattpilot app via the respective platform (Google Play Store, App Store).

Beta
New beta versions of the firmware can be pre-installed and tested. Test feedback on the beta versions is expressly welcomed.

Changing firmware
The old firmware remains stored on the Wattpilot after an update. In the event of an error, it is possible to switch between the old and the new firmware version even without an Internet connection.

After pressing the button, the Wattpilot restarts.

Select this button to reset the Wattpilot to its factory settings. The following settings are not reset:

The technician password protects the network and security-related settings against unauthorized access.

The technician password protects the network and security-related settings against unauthorized access.

Dynamic Load Balancing

For general information on Dynamic Load Balancing, see Dynamic load balancing. The Dynamic Load Balancing monitors the current at the reference point.

Choose country
Different charging conditions are allowed depending on the country. In this selection, all known default settings for the respective country are stored and can be selected directly.

Max. charging current
This setting is used to adjust the maximum charging current of the Wattpilot. For optimal use of the PV surplus, set the charging current to the maximum value approved by the utility.

Random maximum delay
Random charging start delay means that the grid is not overloaded when several Wattpilots start charging at the same time. This is relevant when using flexible electricity tariffs or after a power outage.

Initial Connection and Reconnection
Set the parameters for voltage, frequency, and time.

Undervoltage Shutdown
Define a threshold value for voltage and time for shutdown of the Wattpilot.

Phase unbalanced load
Activate and set the maximum phase unbalanced load. Set the maximum asymmetry in accordance with the applicable regulations (see Phase unbalanced load).

Activation or deactivation of the grounding test. It is necessary to deactivate the grounding test in insulated grids in some countries (e.g., Norway).

The Fronius Wattpilot Flex is equipped with a digital input (DI_1).

The digital input in the grid lead can limit the charging current. The following use cases are possible:

Configuration is carried out in the Solar.wattpilot app and includes activation of the digital input and configuration of the switching contacts.

The Imprint, Privacy statement, and Terms of Use menus take you to further information from the manufacturer. All freely accessible software solutions that are used for the Solar.wattpilot app are listed under Open Source.

The Imprint, Privacy statement, and Terms of Use menus take you to further information from the manufacturer. All freely accessible software solutions that are used for the Solar.wattpilot app are listed under Open Source.