ABB REACT 2 Series - Input Connection to PV Generator (DC Side)

- 88 -
000901AG
5 - Installation
Input connection to PV generator (DC side)
Once preliminary checks have been carried out and no problems found with
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(parallel or independent) you may connect the inputs to the inverter.
Check for correct polarity in the input strings and absence of any leakage to ground in the PV
generator. When exposed to sunlight, the PV panels supply DC direct voltage to the inverter.
The inside of the inverter may only be accessed after the equipment has been disconnected
from the grid and from the photovoltaic generator.
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respect to earth: no pole of the generator must be connected to earth.
To avoid risks of electrical shock, all wiring operations must be carried out with the DC disconnect
switch internal and external (if present, applying LOTO procedures on it) to OFF position and
with the external AC disconnect switch to OFF position (applying LOTO procedures on it).
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of each string) located on the lower side of the REACT2-UNO are used.
&RQQHFWDOOWKHstrings required by the system, always checking the
seal of the connectors.
The number of connections for each input channel is 2 pairs of
connectors.
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connector must be respected, which is 18A.
Polarity inversion can cause serious damage. Check polarity before connecting each string!
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in parallel mode. An incorrect setting of the input channels can lead to loss of energy production.
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installed to the connectors, and install any which are missing. This is
necessary both for the inverter grade IP seal, and to avoid damage to
the free connector which may be used at a later time.
PV
BATTERY
DC SWITCH
GRIDBACKUP
METER
POWER
COMM.
18
19