User Manual 26 / 43 CPS Mini Central series
6.2
DC
connection
Danger to life due to hazards voltages!
Before connecting the PV array, ensure that the DC switch and AC breaker are
disconnect from the inverter.
NEVER
connect or disconnect the DC connectors
under load.
Improper operation during the wiring process can cause fatal injury to
operator or unrecoverable damage to the inverter. Only qualified personnel
can perform the wiring work.
Risk of damage to the inverter.
If the voltage of the PV modules exceeds the maximum input voltage,
1,000Vdc, of the inverter, it can be destroyed by the overvoltage. This will
void all warranty claims.
Do not connect strings to the inverter that have an open-circuit voltage
greater than the maximum input voltage of the inverter.
To reduce the risk of electric shock, avoid touching the live components and
treat the terminals carefully.
The PV modules should have an IEC61730 Class A rating*.
Please use the same brand male and female PV connectors.
Under any conditions the total circuit current should never exceed the Max.
Current.
*Relate only to transformerless installation
Check the assembled DC connectors for correct polarity and connect them to the
inverter.
Check the connection cables of the PV modules for correct polarity and make sure that
the maximum open circuit voltage of each string should never exceed 1000V.
In order to optimize the system configuration, the two inputs are recommended to be
connected to the same number of PV modules.
The maximum short circuit current of each PV string is no more than 12A under any
conditions.
In order to secure the inverter from water and dust, all unused DC inputs must be closed
with sealing plugs.
The diagram drawing of DC side is shown as below, Fig 6.2, notice that the connectors
are in paired (male and female connectors). The vendor of DC connectors for both PV
arrays and inverters should be H4 (Amphenol) or equivalent.
