40
Step
Description
Picture
Power management/Load balancing parameters:
•
Master:
configuration of the charger as a MASTER or as a SLAVE device. The MASTER device
is the one which is directly connected to the external mater or current transformer. Only one
single MASTER device is allowed in a multi-charger system controlled by the same meter
•
Charging modes (photovoltaic support):
o
FAST
: the charging process both uses the grid and the green energy (PV and storage)
at their maximum available value
o
ECO
: the charging process is supplied only by the green energy, if the available
current is 6 A or more. If the available green current is below 6 A, the grid will add
the necessary power, as an integration, in order to make the system charging at 6 A
o
ECO+
: the charging process is supplied only by the green energy, if the available
current is 6 A or more, but the charging current is limited at 6 A. If the available
green current is below 6 A, the grid will add the necessary power selectable in the
range 0-5 A only, in order to make the system charging at 6 A. If the available
current, even adding the maximum grid contribution, remains below 6 A, the charge
process is stopped
•
Meter:
configuration parameters for the external RS-485 meter or the external current
transformer
•
Maximum current:
maximum grid current value
8.2.13
Connection to the external meter
The way to connect and configure the external meter, which supports the power management
mode, is presented in the following.
The external meter models to be used are in the following table, both for single-phase and
three-phase operation (note: only the meter models in the tables are compatible):
Supply
mode
Brand
Model
Description
Picture
Connection
scheme
SINGLE
PHASE
CHINT DDSU666
CABUR
CODE:
EVDDSU6661PH
1-phase
digital
energy
meter
RS-485
Modbus
1 2 3 4
L
N
L
N
IN
OUT