Phocos Any-Grid Series User And Installation Manual page 17

Connection steps:
1. Lightning, short-circuit and other protection measures which meet the local electrical safety laws and
regulations are needed before the PV connection.
2. Connect the output cables of solar modules to the DC connector of inverter as Figure 14 shows. Loosen the
nut of the connector and remove about 8-10 mm from the isolation layer of the DC cable. Insert the
conductor into the appropriate position of the connector, crimp the MC4 DC terminal of the inverter and
tighten the nut with a torque of 2.5 ~ 3 Nm. The wiring of negative pole is the same as that of the positive
pole. Ensure the poles of solar modules are well connected with the connectors.

The PV string connected to Any-Grid PSW-G series inverter must adopt the MC4 DC connector
configured especially for the inverter, do not use other connection devices without authorization
from our company, otherwise damage to the device, unstable operation or fire may occur and our
company will not undertake quality assurance or assume any direct or joint liability thereof.
3. After the DC connector is connected, use a multimeter to measure the voltage of the DC input string, verify
the polarity of the DC input cable, and ensure that the voltage of each string is within the allowable range of
the inverter, as shown in Figure 19.
4. Connect the DC connector with the inverter and ensure tightly fastened.
5. When removing the DC connector from the inverter, insert the tip of a straight screwdriver into the raised
hole in the middle of the connector, and force the movable end of the connector to exit.
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Figure 19: DC input voltage measuring
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