LEONARDO PRO X
User manual
EN
14
The control meter P1 can be installed inside existing boards with single 1U modular assembly, according to the diagram
in
Pic.14
. The meter must be connected to the Leonardo PRO X, in the lower panel, to the Meter input
respecting
the indicated polarity. The connection is indicated in
Pic.15
.
Pic.15 - BUS control cable diagram to Meter P1
Produced PV Power Reading
The P1 meter records the production of the existing PV system. If Err0r 3 is displayed during production (i.e.
during the day), an incorrect AC connection was made.
Whereas, if during the night, i.e. in case of zero production and light Self-Consumption of the PV production
inverter, Err0r 03 is displayed, this is a normal operating state.
2.2.5. Connection of the Maximum Self-Consumption Contact
–
DC Configuration ONLY
If the Leonardo PRO X is used in DC configuration, an auxiliary contact can be used to activate loads (heat pump, water
heater, etc.) using the AUX RELAY port
The AUX RELAY port (AC rated: 230V / 4A, DC nominal: 4A up to 35VDC and 1A up to 60VDC) can be used to activate an
external relay, installed in the electrical panel.
To use this function, it is necessary to activate it in menu 8.3 (§4.1.4), setting the “
Meter Port"
option to SURPLUS.
Moreover, it is necessary to make an electrical connection, as in
Pic.16
, between the Meter
port and the terminal
board
, using a two-pole cable and respecting the polarity indicated in the diagram.
The 560 Ω resistor is supplied already insta
lled on the terminal block.
Pic.16
–
Electrical wiring for contact activation for maximum self-consumption
12
7
13
7
Maximum length: 20m
560
Ω
7
12
