ETI EV PLUS Serie Manuel D'installation page 58

1.2.3 How to connect the meter to the wallbox
How to connect the meter to the charger
Step Description
1 The external meter is connected to the
charger through an RS-485 bus.
The RS-485 terminal blocks can be
reached removing the charger cover
and then by removing the inner cover
which protects the supply terminal
blocks.
The RS-485 wires are connected to the
bus connector (terminal block) on the
charger, as presented in the picture
(boxed in red).
The RS-485 cables are inserted through
the same access path used for the
supply cables.
disconnected in this phase
In case the load sharing mode is needed
(two wallboxes share the power), the
wallbox connected to the meter (called
master) is connected to the other one
(called slave) on a CAN Bus, which
terminals are on the same connector
used for the RS-485 bus.
2 The RS-485 signals from the meter shall
be connected as in the picture
respectively for
•
•
These signals must be connected to the
terminals 24 and 25 of the meter
(please see the meter connection
scheme).
3 After the external meter is connected,
the charger must be closed again with
its covers. This is extremely important
for functional and, mainly, for safety
reasons
February 2023
the power supply must be
RS-485 A
RS-485 B
Picture
7