10
[UITGAV
]
It is possible to connect up to 4 HomeBox modules to each other and let them
share one mains supply.
Software configuration
Configure the HomeBox’s load balancing option (LOADBL) and set one
module to MASTER, the others to SLAVE 1,2,3.
Make sure there is only one Master, and the Slave numbers are unique.
Example: for a two unit Load Balancing setup, set the first module to Master
and the second to Slave 1.
On the Master configure the following:
MODE
Set this Smart if a Sensorbox with CT’s is used to measure
the current draw on the mains supply. It will then dynamically
change the charge current for all connected EV’s. If you are
using a dedicated mains supply for the EV’s you can leave
this set to Normal.
MAINS
Set this to the capacity of the mains supply. This will be the
maximum current all EV’s combined will use.
MAX
Set the maximum charging current for the EV connected to
this HomeBox.
MIN Set to the lowest allowable charging current for all connected
EV’s
On the Slave’s configure the following:
MAX
Set the maximum charging current for the EV connected to
this HomeBox
After setting the Slave’s load balancing option, there will be an error message
on the display: “ERROR NO SERIAL COM”
This indicates, that the Slave unit was not able to communicate to the Master.
This message will disappear after the modules are correctly wired up.
Hardware connections
Connect the A, B and GND connections from the Master to the Slave(s). So
A connects to A, B goes to B etc…
If you are using the Sensorbox, you should also connect the A, B and GND
wires to the same screw terminals of the HomeBox. Make sure that the +12V
wire coming from the Sensorbox is connected to only one HomeBox. This
wire will provide power to the Sensorbox.
L O A D B A L A N C I N G
