SMA SSM16-11 - Manual (Page 46)

7 Commissioning SMA Solar Technology AG
46 SSM16-24-IA-IEN105120 Installation Guide
– The terminal allocation of the data cable is correct.
– All protective covers are fitted.
7.3 Switching On the Sunny String-Monitor
Requirement:
☐ Voltage supply for the measuring boards is present.
1. Remove protective covers.
3. Replace the protective covers.
4. Connect up the isolation terminals in a no-load condition.
5. Activate the DC circuit breaker.
☑ On the control circuit board LEDs 1 and 2 glow green and LED 3 glows orange periodically.
Theft protection and surge arrester are intact. Data cable and control circuit board are ok.
✖ On the control circuit board, are LED 1 or LED 2 not lit up, has LED 3 not lit up after 5 minutes,
is LED 4 lit up and red?
• See section 12 ”Troubleshooting”, page 68.
7.4 Reconnecting the DC Circuit Breaker after Tripping
If the PV array has been disconnected from the inverter with the remote trip in the
Sunny String‑Monitor, you must switch the DC circuit breaker on again manually.
1. Search for the cause of the tripping, and remove it.
2. Open the Sunny String-Monitor.
3. Switch the DC circuit breaker manually from the tripped position to the off position.
4. Switch the DC circuit breaker manually from the off position to the on position.
☑ The DC circuit breaker is switched to "On".
✖ Not possible to turn the DC circuit breaker?
The shunt release is activated.
• If the shunt release is a shunt trip, make sure there is no current at the shunt trip.
• If the shunt release is an undervoltage release, make sure that there is a voltage at the
undervoltage release.
5. Close the Sunny String-Monitor.
2. %"/(&3
Risk of lethal electric shock.
• Disconnect the voltage from the Sunny String-Monitor before inserting the string fuses.