29
28
Requirements for the PV modules of the connected strings:
Same type
Same quantity of PV modules connected in series
CAUTION
If the inverter is not equipped with a DC switch but this is mandatory
in the country of installation, install an external DC switch.
The following limit values at the DC input of the inverter must not be
exceeded:
Types
Max current input A
Max current input B
Growatt 2500MTL
10A
10A
Growatt 3000MTL
10A
10A
Growatt 3600MTL
10A
10A
Growatt 4200MTL
15A
15A
Growatt 4600MTL
15A
15A
Growatt 5000MTL
15A
15A
5.7.3.2. Connecting the PV array (DC)
DANGER
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
WARNING
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. At an ambient
temperature over 10
, the open circuit voltage of the PV modules should not exceed
90% of the maximum input voltage of the inverter. Otherwise, the maximum
inverter input voltage may be exceeded at low ambient temperatures.
℃
5.8. Special connecting
5.8.1. Monitoring system
The inverter provides RS485 interface and RS232 interface to communicate with
remote PC or Date logger. User can monitor the inverter's state via the following
types of communication systems.
Through RS485 interface-Data logger
Through RS485 interface-Data PC
