- 77 -
000837BG
5 - Installation
Input connection to PV generator (DC side)
After having carried out preliminary checks and therefore having veried
that there are no problems in the photovoltaic system, you may connect
the inputs to the inverter.
Comply with the maximum input current relating to the quick-t connectors as indicated in the
technical data.
Polarity inversion can cause serious damage. Check polarity before connecting each string!
When the photovoltaic panels are exposed to sunlight they provide continuous DC voltage
to the inverter. To avoid risks of electrical shock, all wiring operations must be carried
out with the DC disconnect switches
15
(internal or external to the inverter) and AC
disconnect switch
09
(internal or external to the inverter) OFF.
Caution! The inverters referred to in this document are TRANSFORMERLESS. This type re-
quires the use of insulated photovoltaic panels (IEC61730 Class A Rating) and the need to
keep the photovoltaic generator oating with respect to ground: no terminal of the generator
must be connected to ground.
For the string connections it is necessary to use the quick t connectors
16
(usually Weidmüller PV-Stick or WM4, MultiContact MC4 and Amphe-
nol H4) located on the left side of the wiring box
02
.
Refer to the document “String inverter – Product Manual appendix” avai-
lable at www.abb.com/solarinverters to know the brand and the model of
the quick t connector. Depending on the model of the connector of the
own inverter, it is necessary to use the same model and the respective
counterpart (check the compliant counterpart on the website of the ma-
nufacturer or in ABB)
Using corresponding parts that are not compliant with the quick t connector models on the
inverter could cause serious damage to the unit and lead to invalidation of the warranty.
The input connectors are divided into 6 groups (one group for each input
channel) consisting of 4 pairs of quick t connectors.
6A
6B
6C
6D
4A
4B
4C
4D1D
15
16
To Next Page
Loading...
Need help?
General