Download SUNNY BOY 240 / SUNNY MULTIGATE

6 Electrical Connection
SMA Solar Technology AG
4. Plug the other end of the AC cable into the middle AC pin connector of the next inverter.
☑ The plug snaps audibly into place.
5. Ensure that the AC connector and the protective cap in the inverter pin connectors are securely
in place.
6. Connect the free end of the AC cable of the first inverter to the AC field plug
(see Section 6.6 "Option 1: AC Cabling with AC Field Plug", page 34).
7. To allow for greater distances between two inverters, use the AC field plug
(see Section 6.6 "Option 1: AC Cabling with AC Field Plug", page 34).
8. Connecting the PV Module to the Inverter (see Section 6.4, page 32).
6.4
Connecting the PV Module to the Inverter
Only connect one PV module to each inverter in accordance with the following procedure.
Requirements:
☐ Each inverter must be connected to no more than one PV module.
☐ The limiting values for the input voltage and the input current of the inverter must be observed.
☐ The positive connection cable (DC+) of the PV module must be fitted with a positive
DC connector suitable for the DC connector of the inverter.
☐ The negative connection cable (DC − ) of the PV module must be fitted with a negative
DC connector suitable for the DC connector of the inverter.
Procedure:
1.
Danger to life due to electric shock
Do not disconnect the AC connector under load.
• Ensure that the circuit breaker is switched off and ensure that it cannot be reconnected.
• Ensure that the PV module is covered.
2. Check the PV module for ground faults (see Section 11.3, page 64).
3. Check the DC connectors of the PV module for correct polarity and connect to the
DC connectors of the supplied DC plug. Tip: for correct assignment, the DC plug is marked
with + and ‒.
☑ The DC connectors snap into place.
4. Ensure that the DC connectors are securely in place.
5. Insert the DC plug with the DC connectors into
the outer pin connector on the inverter.
6. Connect the first inverter of the PV system to the Sunny Multigate (see Section 6.8, page 39).
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SMG-SB240-IA-en-11
Installation Manual