5.4.3 Wiring DC Input
Danger to life due to lethal 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.
WARNING
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.
Information
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.
NOTICE
Excessive voltages can destroy the measuring device
Only use measuring devices with a DC input voltage range up to at least
800 Vdc.
1 Check the connection cables of the PV modules for correct polarity and make sure
that the maximum input voltage of the inverter is not exceeded.
2 The diagram drawing of DC side is shown as below, notice that the connectors
are in paired (male and female connectors). The connectors for PV arrays and
inverters are H4 (AMPHENOL) connectors;
DANGER
23
24
Fig 5.9
3 Check the assembled DC connectors for correct polarity and connect them to the
inverter.
4 The maximum string currents are varying from different inverter types.
Model
Max.current
4000UE
9A
5000UE
9A
6000UE
10A
Fig 5.8
