User Manual 23 / 54 CPS Mini Central series
5.4.3 Wiring DC Input
*Relate only to transformerless installation.
1
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.
2
The diagram drawing of DC side is shown as below, Fig 5.13, notice that the connectors are in paired
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 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.
Excessive DC voltages can destroy the measuring device
Only use measuring devices with a DC input voltage range up to at least 1,000 Vdc.
