Siemens SINVERT 350 Manual De Usuario

11 

The inverter is switched on in the same way as it is switched off, but in the reverse sequence. 
 

1.  Check that all connections have been made correctly (including polarity). 
2.  Switch on the junction boxes in the PV field. 
3.  Switch on the external power supply for the medium-voltage switchgear. 
4.  Switch on the external power supply for the inverter container. 
5.  Close the medium-voltage breaker. 

o

  Open the grounding switch. 

o

  Close the switch disconnector. 

o

  Close the circuit breaker. 

o

  Note: Depending on the type of MV switchgear installed, the step sequence might vary. 

6.  Close the DC fuse switch disconnectors in all inverters. 
7.  Close the AC fuse switch disconnectors in all inverters. 
8.  Unlock the "Fast Stop" button. 
9.  Turn the keyswitch on all inverters from "Auto" to "Test" and back to "Auto" in order to reset 

settings. 

10.  If insolation levels are sufficiently high, the system will restart automatically after 30 minutes. 
11.  To start the system immediately, you must turn the keyswitch on the master to the test position. 

Then press the internal key "S111". 

12.  The DC contactors are automatically closed one after the other. The inverter is then started and 

the AC contactor is immediately closed. Now turn the keyswitch to "Auto".