16 commissioning, 1 commissioning the inverter – SMA SC 500CP-US User Manual
Page 92
16 Commissioning
SMA America, LLC
92
SCCP-US-IA-US_en-41
Installation Manual
16 Commissioning
16.1 Commissioning the Inverter
:$51,1*
Fire hazard due to faulty connection
If the cables and connections are incorrectly connected, the cables and connections can overheat and catch fire. This
may result in death or serious injury.
• Before commissioning, make sure that all cables and connections are correctly connected.
• Switch off all switch elements before the test:
– Switch the inverter to Stop using the key switch.
– Remove the fuses.
– Switch off the internal main switches and circuit breakers.
Statutory warranty or guarantee claims
Statutory warranty or guarantee claims can only be asserted if the initial start-up was carried out by SMA or if the
fully completed and signed "Commissioning Report for Sunny Central Plants" is available at SMA.
Unused remote shutdown
• If the remote shutdown is not used, set the parameter ExtStrStpEna to Off during commissioning (see the
Sunny Central operating manual).
Inverter without transformer protection
• If you are not using the transformer protection option, set the ExtTrfErrEna parameter to Off after
commissioning (see the Sunny Central operating manual).
Connecting and disconnecting the AC voltage of the medium-voltage transformer
Only a duly authorized person trained in electrical safety is allowed to connect and disconnect the AC voltage of
the medium-voltage transformer.
Procedure
See
1.
Check the inverter cabling.
2.
Insert the DC fuses.
3.
Mount the protective covers.
4.
If applicable, commission the DC sub-distribution.
DC sub-distribution
documentation
5.
If applicable, commission the DC main distribution.
DC main distribution
documentation
6.
Check the DC voltages.
7.
Have a duly authorized person trained in electrical switching connect the
AC voltage of the medium-voltage transformer externally.
Medium-voltage transformer
documentation
8.
Check the AC line voltage.
9.
Check the internal power supply.
10.
Switch the voltage supply on.
11.
If applicable, switch on the AC Disconnect.