23
24
WARNING
WARNING
WARNING
WARNING
DANGER
Crimp the grounding wire to the OT terminal, and then locking the grounding wire to the
inverter housing by the cross combination screw, as shown below.
6.6 Connecting the PV Array (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.
Make sure the maximum open circuit voltage(Voc) of each PV string
is less than the maximum input voltage of the inverter.
Check the design of the PV plant. The Max. open circuit voltage,
which can occur at solar panels temperature of -25
℃
, must not
exceed the Max. input voltage of the inverter.
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.
Wire step is shown below:
1. The Growatt MTLP-S single-phase inverter has three independent MPPT : A
、
B
and C, the MPPT A has two independent PV array inputs, MPPT B and MPPT C have
one PV array input, the corresponding terminal block is shown below.
2. The PV connection wire is crimped to the corresponding PV+/PV- metal terminals,
and then plugging into the corresponding PV+/PV- terminals, as shown below.
3. Plugging the connected wires PV terminals into the corresponding PV terminals on
the inverter side, as shown below.
Notice that the connectors are in paired (male and female connectors). The
connectors for PV arrays and inverters are H4 connectors;
Suggestions for the PV modules of the connected strings:
Ø
Same type
Ø
Same quantity of PV modules connected in series
6.7 Using shinetool to set the information of the inverter
About the software of shinetool and the usage of it please download from the web:
www.ginverter.com/Download.aspx
6.8 Grounding the inverter
The inverter must be connected to the AC grounding conductor of the power
distribution grid via the ground terminal (PE)
Because of the transformerless design, the DC positive pole and DC
negative pole of PV arrays are not permitted to be grounded.
