SMA SMC 4600A Installation - Manual (Page 31)

SMA Solar Technology AG Electrical Connection
Installation Manual SMC46-60A11-IA-en-81 31
5.4.4 Connecting the PV Array (DC)
1. Disconnect the miniature circuit-breaker and secure against reconnection.
2. Pull the Electronic Solar Switch downward, slightly
towards the wall.
3. Check the connection cable of the PV modules for
correct polarity and make sure that the maximum
input voltage of the inverter is not exceeded.
At an ambient temperature above 10°C, the open-
circuit voltage of the PV modules must not be more
than 90% of the maximum inverter input voltage.
If this is not the case, review the plant design and
the PV module circuitry. At lower ambient
temperatures, the maximum input voltage of the
inverter could otherwise be exceeded.
DANGER!
Danger to life due to high voltages in the inverter
• Before connecting the PV array, ensure that the miniature circuit-breaker is switched
off.
NOTICE!
Excessive voltages can destroy the multimeter
• Only use multimeters with a DC input voltage range of up to at least 1,000 V.
NOTICE!
Destruction of the inverter due to overvoltage
If the voltage of the PV modules exceeds the maximum input voltage of the inverter, the
inverter could be destroyed by overvoltage.
This will void all warranty claims.
• Do not connect strings with an open-circuit voltage greater than the maximum input
voltage of the inverter.
• Check the plant design.