
4.2. EV Charging Station setup
After initial setup, set up the EVCS according to your needs. To do this, connect to the web interface and click on the Settings tab
for further setting options. The main page options are explained in The main page [15] chapter.
Six subtabs will appear:
1. Networks tab: See the Networks menu [16] chapter.
2. General tab: Provides setting options for the charger, GX device communication, display, time zone and device name.
a. Charger: Charger related settings.
i. EV charger position: Select where the EVCS is positioned in the system. Examples:
1. If the charging station is on the output of an inverter as one of the main’s AC outsources, select Inverter AC out.
2. If connected to the grid and the EVCS is positioned at the AC input of the grid before the inverter, select Inverter
AC in.
ii. EV charger autostart: If enabled, the EVCS will automatically start charging when the vehicle is connected.
iii. Contactor active when charged: Keeps the contactor closed after charging. For example, when an air conditioner is
active in the vehicle, it is powered by AC power rather than the car battery.
iv. Maximum charging current: 10 - 32A
v. Minimum charging current: From 6A up to 1A below max. value. Example: A Renault Zoe needs at least 10A.
vi. Min SoC to allow charging if no grid available (%): If you are off-grid and have no grid connection, you can set the
minimum system state of charge (SoC) percentage to retain some power to use in the property.
vii. Energy price per kWh (€): Enter the cost per kWh in EUR (later firmware versions will allow changing the currency
icon) to calculate the session cost saved.
viii. CP line calibration procedure: If the vehicle is not detected or if the vehicle is fully charged and the EVCS contactor
opens/closes, the calibration should be performed.
ix. Power calibration(0.6 - 1.4): If the displayed power value is not correct, a maximum correction factor of +/- 40% can
be applied.
x. Actual power (kW): Displays the current power value with which the EV is charged.
b. GX device: The EV Charging Station can be used:
i. As a stand alone device.
ii. As part of a larger Victron Energy system. When enabling GX device communication, the GX IP address is that of the
GX device. Modbus TCP must be enabled in the GX device (see Modbus TCP activation [17] section) itself to enable
communication.
Note that if GX communication is enabled and the IP address is not correct, the charging station will report the error
"low SoC" as it cannot get the SoC from the GX device. Make sure the GX IP address setting matches that of the GX
device.
A. Enable communication: Tick the box to enable communication with a GX device.
B. GX IP address: The IP address of your GX device.
C. Discover: Click the Discover button to search for the GX device. Select the GX device from the list that will pop
up; the GX IP address will then be entered automatically.
c. ModbusTCP Server:
EVCS ModbusTCP server. The address is the same as that of the GX device.
i. IP address whitelist state: Enable or disable the whitelist state.
Note that when the IP address whitelist state is enabled, only the devices from the IP address whitelist table below
can communicate with the EVCS.
ii. IP address whitelist table: Add IP addresses that are allowed to communicate with the EVCS.
d. Display:
i. Active backlight (%): The brightness of the displays when active.
ii. Idle backlight (%): The brightness of the displays when idle.
iii. Active timeout (s): The time after which the active display goes back to idle.
Manual - EV Charging Station
Page 12 Setup