SMA SI 3.0-11 Quick Reference Guide V.3.0 - Manual (Page 45)

SMA Solar Technology AG 7 Commissioning
Installation - Quick Reference Guide Ersatzstrom-IS-en-30 45
4. Close circuit breaker F1 and check the following:
5. Close circuit breaker F6.
☑ Voltages are present at connection X3.
6. Check whether the residual-current devices trip correctly and are correctly wired:
7. Start the Sunny Island. Press and hold the button on the Sunny Remote Control until you hear an acoustic signal.
8. Check whether error messages are displayed on the Sunny Remote Control.
If the error message F365 VAcExtPhsFail is displayed, correctly connect connection ExtVtg on the Sunny Island.
9. Close circuit breaker F5 and check whether contactors Q4 and Q6 remain in non-operative mode.
If the contactors activate, correctly wire connections Relay2 C and Relay2 NO on the Sunny Island.
10. Simulate a grid failure. To do this, open circuit breaker F1. As a result, contactors Q1, Q2, and Q3 deactivate.
If the error message F367 ExtCtcNotOpen is displayed, correctly connect connections DigIn and BatVtgOut to
the Sunny Island.
11. Check whether contactors Q4 and Q6 activate approximately five seconds after circuit breaker F1 is opened.
If the contactors do not activate, correctly wire the control cables of the contactors and correctly connect connections
Relay2 C and Relay2 NO to the master.
12. Check whether the grounding device switches correctly.
• Ensure that no voltage is present at connection X2 between terminals N and PE and that conductivity can be
measured.
• Open circuit breaker F5.
• Ensure that no voltage is present at connection X2 between terminals N and PE and that conductivity can be
measured.
• Close circuit breaker F5.
Check point Task
Contactors Q1, Q2, and Q3 Check whether the contactors activate and whether there is voltage present and
a right-hand rotating magnetic field at connection X2.
If the contactors do not activate or no voltage is present at connection X2,
ensure the following:
• At the master, ensure that the control cable is correctly connected to
connections Relay1 C and Relay1 NC.
• Ensure that, in the automatic transfer switch, contactors Q1, Q2, and Q3
are correctly wired.
Connection X2
Check point Task
Residual-current device F7 Press the test button and measure whether there is voltage present at connection
X3.
If voltage is present, correctly wire residual-current device F7.
Switch on residual-current device F7 again.
Residual-current device F2 Press the test button and check if contactors Q1, Q2, and Q3 go into
non-operative mode.
If the contactors do not deactivate, wire the residual-current device F2 correctly.
Switch on residual-current device F2 again.