Configuration

Screenshot #1 cFos Charging Manager Documentation - Configuration

First you should enter global parameters.

TitleThe title of your project
DescriptionHere you can enter a small description of your project
Title and Description will be displayed in the overview accordingly
Load BalancingEnable Load Balancing
Max. Total PowerDetermines the maximum available house connection power. This line is available to the house, incl. all consumers and charging stations
Power ReserveSince fluctuations due to short-term power peaks can always occur during the regulation of the power, you should specify a reserve in the field "Power Reserve" which is attracted by the house connection power and is never touched. During regulation, the Charging Manager checks whether there is nevertheless an overdrawing of the available house connection power The reserve should be chosen higher, the less information is available about the usage of each phase (by suitable meters).
OverdraftIn the field "Overdraft" the Charging Manager enters this value of the overdraft in watts that exceeds the reserve. This allows you to see later how well the regulation is working and whether you should set more power reserve.
Overdraft should ideally be 0 and remain so
Max. Total EVSE PowerDepending on the house installation, it may be that an additional power line has been laid for the charging stations exclusively for charging electric cars. "Max. Total EVSE Power" determines the maximum power of this line
Extra Power
Extra Power Time on
Extra Power Time off
The Charging Manager provides each car with approximately as much charging power as it actually consumes according to the intermediate meter. In order for the charging power to increase subsequently during the charging process, the Charging Manager allocates extra power to the car from time to time. This extra power can be set in watts via the field "Extra Power".
"Extra Power Time on" specifies how long this extra power is available.
"Extra Power Time off" determines how long the car should be charged with normal power afterwards until the next time Extra Power is used
On Device disableThe checkbox "On Device disable" tells the Charging Manager what should happen when a charging station is disabled in the configuration menu. You can choose whether the charging station should then be disabled (charging is prevented) or whether the charging station is set to a minimum power value

Add new devices

Press the button "Add New Meter" to add another intermediate meter. You can set the following values for a meter:

Screenshot #2 cFos Charging Manager Documentation - Configuration
NumberThis is a freely selectable number that is displayed in the overview, e.g. the number of the parking space whose consumption is to be measured
NameHere you can give the intermediate meter a name
DescriptionHere you can add a small description
Device typeWith this select box you choose which device it is. The Charging Manager supports a number of different devices. We will expand the list of supported devices over time. Among the supported devices is an S0 intermediate meter, which you can connect to one of the two inputs of the cFos Charging Controller. There are also other common intermediate meters and virtual meters to choose from. The virtual counters are internal Charging Manager counters that sum up certain power values so that they can be nicely displayed in the overview. There is also a simulated counter for experimentation. For the counter you have to set the following:
AddressWith the destination address you tell the Charging Manager how to address the device. You can either specify an IP address:port or specify a COM port and then the COM parameters, e.g. COM1,9600,8,n,1
IDIf the device is a Modbus device, you must enter the Modbus Slave ID of the device here
enabledThe checkbox decides whether the device is enabled (i.e. the Charging Manager controls it or reads it out) or whether it should only be stored for later use
RoleThis select box decides which role the meter has. "Display" means that the meter is for display purposes only and is not included in performance calculations. "Consumption" means that the meter measures the power of a consumer. This is subtracted from the set house connection power. With "Production" you set up meters that measure produced power (e.g. from a solar system). This power is added to the existing house connection power and is available to the EVSEs as charging power. Instead of individual generation and consumption meters, you can also install a central meter for your house connection. In this case, set "Role" to "Grid demand". The Charging Manager will then ensure that the total consumption does not exceed that of your house connection. In this case, you should not define any consumption or production counters. You can set up exactly one total counter. Meters with "Role" "Vehicle Consumption" are currently not used directly s. but "Attach"
InvertAllows the counters to be inverted, i.e. the sign of the current power is reversed (if you have installed the counter "the wrong way round". The signs of the power values are then also inverted in power calculations.
Note: Both consumption and generation meters normally have positive power values. The role decides whether a value is subtracted from or added to the house connection power. In the case of the total meter, a positive power reading means consumption, a negative one means feed-in
Reset deviceThis allows you to restart a unit
AttachIf a EVSE does not have its own meter, you can "pin" a meter to it. The Charging Manager then assigns this meter to the selected EVSE and considers the power and energy information to be that of the corresponding EVSE. Here you should select "Vehicle Consumption" as the "Role"

Note: By the way, solar inverters also count as meters. These can often output the currently generated power via Modbus TCP, just like a meter.

Press the button "Add New EVSE" to add another charging station. You can set the following values for a charging station:

Screenshot #3 cFos Charging Manager Documentation - Configuration
NumberThis is a freely selectable number that is displayed in the overview, e.g. the number of the parking space whose consumption is to be measured
NameHere you can give the intermediate meter a name
DescriptionHere you can add a small description
Device typeUse this select box to select which device it is. The Charging Manager supports a number of different devices. We will expand the list of supported devices over time. Among the supported devices is the cFos EVSE. You will also find other common EVSEs and a simulation for experiments. For the EVSE you have to set the following:
ParametersHere you specify parameters to address devices with different start addresses or additional meters
For certain devices, there are parameters that you should be aware of: List of parameters
AddressWith the destination address you tell the Charging Manager how to address the device. You can either specify an IP address:port or specify a COM port and then the COM parameters, e.g. COM1,9600,8,n,1
IDIf the device is a Modbus device, you must enter the Modbus Slave ID of the device here. For OCPP devices, enter the Charge Point ID here
enabledThe checkbox decides whether the device is enabled (i.e. the Charging Manager controls it or reads it out) or whether it should only be stored for later use
LabelA freely selectable label that appears in the overview when a vehicle is plugged in
Max. PowerThe maximum charging power that this EVSE supports. This may be lower, depending on whether a lower-power cable is connected
PriorityPriority when charging. Default is 0
Phase rotationThe Charging Manager can detect phase asymmetries (immediately the EVSEs have corresponding meters or meters are connected that can output the current of the individual phases). If the asymmetry exceeds 4.5kW, the Charging Manager will switch off the charging of this charging station until the symmetry is restored. If you want to charge several vehicles at different EVSEs, the phase position should be rotated during installation in contrast to other EVSEs. You can set this phase rotation here
Recommendation: Make it uniform, e.g. 1st EVSE 0 degrees, 2nd EVSE 120 degrees, 3rd EVSE 240 degrees, 4th EVSE again 0 degrees, etc.
Note: Phase rotation refers to the phase difference between EVSE and building main phases. Meter and EVSE must have the same phase rotation. This should always be the case for meters installed in EVSEs, while you should pay attention to this when installing external meters. The display of phases in the web interface always refers to users of the actual phases present in the building. For example, if a car is charging on phase L1 and the EVSE is connected with phase rotation 120 degrees, phase L2 will be displayed.
ResetYou can restart a unit with this
User
Charging rules
Here you can add users and charging rules as described on the page RFID / PIN