Battery settings

If a battery is connected to the inverter, the behaviour and usage of the battery can be configured here.

Parameter

Explanation

Battery type

Displays the connected battery. The battery type is identified automatically.

Battery control
(only possible with service code)

The battery can be controlled by an external battery management system (e.g. energy supplier). In this case, the charging power and discharging power of the battery is controlled by the external supplier. The plant owner then receives remuneration for the energy provided, for example from the external supplier. External battery control

Internal (standard):

The external control is deactivated.

External via digital I/O:

External battery management is carried out via the digital inputs on the Smart Communication Board (terminal X401) of the inverter. A presetting can be selected or the digital inputs can be configured according to the provider's specifications.
If there are no control signals, the system switches to internal control. It is still possible to read out the device status in parallel using Modbus (TCP)/SunSpec. External battery control

External via Modbus (TCP):

The external battery management is provided via the Modbus RTU protocol. The control signals are received via the LAN interface. If the control signals fail to appear for the set duration, the internal control system is activated. It is still possible to read out the device status in parallel using Modbus (TCP)/SunSpec.

Also set the time for Timeout of ext. battery control. If the signals via Modbus are interrupted or fail to appear, the internal control system is activated after the time has expired.

Backup mode

Displays the backup function selected during the installation.

Not activated:

No backup function has been selected.

Manual changeover:

A manual KOSTAL BackUp Switch has been fitted in the house installation which can be used for the backup function if there is a power failure.

Automatic changeover:

An automatic changeover box has been fitted in the house installation which can be used for the backup function if there is a power failure.

You will find a list of approved KOSTAL Solar Electric accessories on our website in the download area for the product.

 

Battery settings

Battery discharge as of grid demand of [W]

Input of a minimum grid demand value as of which the battery is used. (Standard 50 W.)

Example: If a value of 200 W is set, the battery can only be released to cover the home consumption when the measured grid demand from the public grid exceeds 200 W. The battery is blocked again for home consumption when the grid demand falls 50 W below the set value (in this example 150 W).

Min. state of charge (SoC) [%]

Set the minimum depth of discharge of the battery.

Storage of excess AC energy from local generation

If there is an additional AC energy source in the local house grid (e.g. an additional PV system or a combined heat and power unit), the AC energy generated can be stored in a battery connected to the PLENTICORE plus.

NOTE! The function can only be activated if the energy meter has been installed at the grid connection point (position 2).

Activated: The AC energy generated can be stored in the battery.

Deactivated: Extra generated AC energy is not stored in the battery.

Time-controlled battery usage

There are times when the costs of electricity procurement are relatively high (different tariff models). Therefore, it may make sense to allow the battery to discharge during these periods and to allow charging outside of these periods.

The times set here can be overridden by the specifications of an activated external battery management system.

No limitation:
No conditions have been set for this time period.

 

Battery charging blocked, battery discharge permitted in the event of demand from house:
The battery is not charged in this time period. However, the battery is allowed to discharge if there is demand from the house.

Battery discharge blocked, battery charging permitted in the event of excess power:
The battery is not discharged in this time period. However, the battery is charged as soon as there is excess power available.

 

NOTE! Note whether the local regulations permit the storage unit to be charged from the public grid. If you are in any doubt, ask your installer.

Battery charging to xxx% SoC with max. xxx W grid demand, battery discharge in the event of demand from house:
The battery is charged in this time period. Energy is obtained from the public grid until the specified SoC value is reached with the set value for grid demand. This may be appropriate if you have a particularly economical grid energy tariff at certain times. However, the battery is allowed to discharge if there is demand from the house.

Battery charging to xxx% SoC with max. xxx W grid demand, no battery discharge in the event of demand from house:
The battery is charged in this time period. Energy is obtained from the public grid until the specified SoC value is reached with the set value for grid demand. This may be appropriate if you have a particularly economical grid energy tariff at certain times. However, the battery is not allowed to discharge if there is demand from the house.

 

Advanced battery options

Advanced battery options (only possible with service code)

Start battery discharge

If the SoC of the battery is very low during initial commissioning, this function can be used to charge the battery to 100% once. The charging process is performed regardless of the energy source. During the process, Service charging is displayed on the inverter.

The charging process ends when the SoC reaches 50% if there are no energy meters present (e.g. in the Battery storage with ext. battery control mode).