15
1.
Strip the DC cable insulation about 8 mm to expose the copper wire. Insert the cable
copper wire into the metal core of the connector and tighten it with a crimper (As shown
in the figure below).
2.
Loosen the terminal cover and pass the cable through the terminal cover. Insert the
die into the wiring slot till you hear a sound indicating that the connection is in place.
Tighten the terminal cover (As shown in the figure below).
3. Check whether the PV array cable connection polarity is correct with a voltmeter whose
DC voltage measurement range is over 1000 V, and verify that the open-circuit voltage
does not exceed the specification. When the ambient temperature is above 10°C, the
open-
circuit voltage of PV arrays can’t exceed 90% of the maximum DC voltage of the
inverter. Otherwise, at the low temperatures, the voltage of PV arrays may exceed the
maximum input voltage of the inverter and cause damage to the inverter.
4. Disconnect the circuit breaker on the DC side and connect the PV input cable to the
inverter separately.
5.4 AC Connection
WARNING!
Ensure that electrical connections are in compliance with the local
national and local standards.
WARNING!
The uncharged metal parts in PV power generation systems consist of PV
module bracket, the metal case of the inverter, which should be grounded
reliably. The grounding pole should meet the standard requirements.
The grounding parts of multiple inverters and PV arrays should be
connected to the same grounding bus, building a reliable equipotential
connection.
CAUTION
According to the requirement of EN50178, the right side of the inverter
has a second earth terminal, which can be connected by the combination
screws M4 × 8 with flat pad and spring pad.
Wiring on the AC side
1. Pass the appropriate length of cable through the waterproof connector cap and shell.
Only apply to multistrand copper wire, length of the earth wire should be 5 mm longer
than the live wire and zero wire. Strip the cable insulation about 7 mm (As shown in
the figure below).
