Ensure the component frames and the bracket system are securely grounded.
Ensure the DC cables are connected tightly, securely and correctly. Inappropriate wiring
may cause poor contacts or high impedances, and damage the inverter.
Measure the DC cable using a multimeter to avoid reverse polarity connection. Also, the
voltage should be within the permissible range.
Measure the DC cable using a multimeter to avoid reverse polarity connection. Also, the
voltage should be under the max DC input voltage. The manufacturer shall not be liable
for the damage caused by reverse connection and overvoltage.
The PV strings cannot be grounded. Ensure the minimum insulation resistance of PV
string to the ground meets the minimum insulation resistance requirements before
connecting the PV string to the inverter (R=maximum input voltage (V)/ 30mA).
Do not connect one PV string to more than one inverter at the same time. Otherwise, it
may cause damage to the inverter.
Photovoltaic modules used with inverters must comply with IEC 61730 Class A standard.
The voltage and frequency at the connecting point should meet the on-grid
requirements.
Additional protective devices like circuit breakers or fuses are recommended on the AC
side. Specification of the protective device should be at least 1.25 times the maximum
AC output current.
The arc fault alarms will be cleared automatically if the alarms are triggered less than 5
times in 24 hours. The inverter will shutdown for protection after the 5th electric arc
fault. The inverter can operate normally after the fault is solved.
BACK-UP is not recommended if the PV system is not configured with batteries.
Otherwise, there may be a risk of system power outage.
To Next Page
Loading...