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5 - Installation
C
onnection of the energy meter (REACT-MTR)
Management of the storage system in order to optimise the energy self-
consumption and self-sufficiency of the REACT system is based on the
reading of the power by the meter REACT-MTR. On the basis of the type
of electric supply the following are available:
• REACT-MTR-1PH
54
for mono-phase supplies
• REACT-MTR-3PH
58
for three-phase supplies
The energy meter REACT-MTR will communicate with the REACT throu-
gh a dedicated serial line (RS485 METER).
If the energy meter REACT-MTR is not installed or correctly connected, the REACT system
will manage the functions connected to energy storage in provisional mode; where power is
available from the sun, REACT charges the battery with 300 W. The rest of the power is fed
into the grid. This mode makes it possible, even if there is no meter, to charge the battery.
For further details relating to compatibility and the relative configurations required for opera
-
tion of the energy meters, refer to the document
REACT-MTR 1PH/3PH Compatibility and
Configuration of the meters to manage energy flows
” available on website www.abb.
com/solarinverters.
C
onnection of the REACT-MTR-1PH (mono-phase)
The indications set out below are necessary to connect the REACT-MTR to the REACT sy
-
stem. Always refer to the specific documentation supplied with the REACT-MTR-1PH.
The energy meter REACT-MTR-1PH
54
is a DIN rail device (3 modules)
and must be installed where the electricity supply is mono-phase.
To avoid risks of electrical shock, all wiring operations must be carried out with the AC disconnect
switch (or the supply meter) upstream of the REACT-MTR disconnected.
• Ensure that the AC line has been correctly disconnected upstream from
the REACT-MTR. Check that there is no voltage by using a multimeter.
• Strip 8/10mm of sheathing from the connection cables of the AC power
supply and connect the phase (L) and neutral (N) on the specific terminal
block
56
set on the upper side of the meter; each individual terminal of the
terminal block takes a cable with a maximum section from 0.5 to 4mm²
(tightening torque of 0.5Nm).
• Connect the cables of the serial line (+T, -T and RTN) on the terminal
block
57
on the lower part of the REACT-MTR. Each individual terminal
of the terminal block takes a cable with a section from 0.14 to 1.5mm²
(tightening torque of 0.5Nm).
Subsequently the cable must be connected inside the REACT-UNO re-
specting the correspondence between the signals of the serial line.
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