SMA SMC 7000HV Installation - Manual (Page 34)

Electrical Connection SMA Solar Technology AG
34 SMC70HV11-IA-IEN112970 Installation Manual
5.4.4 Connecting the PV Array (DC)
1. Disconnect the miniature circuit-breaker and secure against re-connection.
2. Pull the Electronic Solar Switch downward, slightly
towards the wall.
3. Check the connection cables 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.
Otherwise, check the system design and the PV
module connection. If this is not done, the maximum
inverter input voltage can be exceeded at low
ambient temperatures.
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 measuring device!
• Only use measuring devices with a DC input voltage range up to at least 1 000 V.