ABB Fimer PVI-10.0/12.5-TL-OUTD - Input Connection to PV Generator (DC side)

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000432BG-F
5 - Installation
Input connection to PV generator (DC side)
Once preliminary checks have been carried out and no problems found
with the photovoltaic system, and the channel conguration has been se-
lected (parallel or independent) you may connect the inputs to the inverter.
According to the system conguration, check the correct setting of the channels to indepen-
dent or in parallel mode. An incorrect setting of the input channels can lead to loss of energy
production.
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 switch (internal or external to the inverter) off.
For the string connections it is necessary to use the quick t connectors
(usually Weidmüller PV-Stick or WM4, MultiContact MC4 and Amphenol
H4) located on the bottom of the mechanic
09 10
.
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Refer to the document “String inverter – Product Manual appendix” avai-
lable at www.mer.com 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 manufacturer or
in FIMER).
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.
Connect all the strings included in the design of the system, always che-
cking the tightness of the connectors and checking the input polarity is
correct.
Polarity inversion can cause serious damage. Check polarity before connecting each string!
In the -FS version you MUST directly connect the individual strings coming into the inverter
(do not make eld switchboards for parallel strings). This is because the string fuses
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, situ-
ated on each input, are not sized to take strings in parallel (array). This operation can cause
damage to the fuse and consequently malfunctioning of the inverter.