Copyright CPS America Co., Ltd. Page 45
WARNING
Do not mix the connection with the wrong polarity. This may cause
damage to the PV Inverter; therefore, it is very important to do the
polarity check before connecting the DC power to the wiring box.
Do not start up the PV Inverter while the fuse cover is removed.
The dummy fuses must be kept within fuse holder if there is no
protection fuses planned to be installed.
CAUTION
Each port (terminal)
of the multi-string DC input terminal is only able
to be connected with a maximum 20A input current. It is important to
ensure the correct connections of the PV modules according to the
electrical specifications.
IMPORTANT
It is important to follow the standard formula for the DC fuse
selection if string fuses are planned to be used.
Insulation Protection
An insulation glove should be worn during the service period.
D) When the DC power is delivered from an external combiner to the wiring
box of the PV Inverter, use a multi-meter to measure the DC voltage on
the connected polarity port of the DC input terminal in order to ensure
the DC input power is applied within the electrical specification of PV
inverter.
E)
At last, turn off the circuit breaker for the PV strings of DC input side and
then continue with the procedures in next section in order to complete
the connection for the AC side.
