Kaco Powador 2500xi Operating Instructions Manual - Action
Installation Instructions Powador 2500xi / 3600xi / 4000xi / 4500xi / 5000xi_EN
Page 15
PV generator connection
The PV generator leads are connected in the connection box
on the right side.
The PV generator can be connected in the following ways:
–
Cable fi ttings
–
Tyco plug connectors
–
MC plug connectors
When delivered, the cable fi ttings are already installed. As an
option, Tyco and MC plug connectors can be delivered with
the inverter.
S e c t i o n 6 ·
I n s t a l l a t i o n a n d S t a r t - u p
ACTION
Guide the lead, which has been stripped of its jacket and
insulation, through the cable fi tting.
Connect the lead, which has been stripped of its jacket
and insulation, as is shown on the label on the left side of
the PCB terminal.
C AU T I O N
Check that the leads are properly connected.
Exchanging L and N will destroy the inverter.
ACTION
Once again, check that all connected leads are fi rmly
connected.
Tighten the cable seal of the cable fi tting.
DA N G E R
To ensure maximum protection against hazardous
contact voltages while assembling photovoltaic
installations, both the positive and the negative
leads must be strictly isolated electrically from
the earth potential (PE).
AT TENTION
Risk of damage.
Ensure that the polarity is correct when connecting the
unit.
ACTION
Before connecting the PV generator to the Powador,
check that the PV generator is not earthed.
–
Measure the DC voltage between the protective earth
(PE) and the positive lead and between the protec-
tive earth (PE) and the negative lead of the PV gen-
erator.If stable voltages can be measured, there is an
earth fault in the PV generator or its wiring. The ratio
between the measured voltages gives an indication as
to the location of this fault. This fault must be rem-
edied before taking any further measurements.
–
Measure the electrical resistance using a tester accord-
ing to DIN VDE0100 (a megohmmeter) between the
protective earth (PE) and the positive lead and the
protective earth (PE) and the negative lead of the PV
generator.
Low resistance (< 2 MΩ) indicates a high-ohm earth
fault of the PV generator, which must be remedied before
further installation.
C AU T I O N
The voltage of the solar generator must be meas-
ured before connecting the DC leads to the
inverter terminals. The DC voltage must not
exceed 800 V. Connecting to a higher voltage will
destroy the unit.