• Check the metal mounting tabs inside the
ESS for discoloration or damage.
If the metal mounting tabs show brown
discoloration or are damaged, order a new
ESS from SMA Solar Technology AG and
have the ESS replaced.
If the metal mounting tabs show no brown
discoloration or damage, the ESS is not
worn and can still be used.
7. If an ESS is used, the ESS has to be plugged in firmly. The ESS must be aligned parallel to and
flush with the enclosure.
8.
Currents in the DC cabling after connecting the ESS
After connecting the ESS, DC currents may occur in the DC cabling, even when there is
no AC-side supply. This is not an error but normal behavior of the inverter when in
operation.
9. If an external DC load-break switch is installed, switch it on.
10. Switch on the circuit breaker.
11. If the multifunction relay is used, connect the supply voltage to the load.
☑ All three LEDs start to glow and the start-up phase begins. The start-up phase may take several
minutes.
☑ The green LED is glowing and the display alternates between the device type, the firmware
version, the serial number or designation of the inverter, the NetID, the configured country
data set and the display language.
✖ Green LED is flashing?
Possible cause of error: the DC input voltage is still too low or the inverter is monitoring the
utility grid.
• Once the DC input voltage is sufficiently high and the grid connection conditions are met,
the inverter will start operation.
✖ The red LED is glowing and an error message and event number appear in the display?
An error has occurred.
• Rectify the error (see Section 4 "Troubleshooting", page 10).
8 Recommissioning the Inverter
SMA Solar Technology AG
Service Manual
SB30-60TL-21-SG-en-11
26
Summary of Contents for SUNNY BOY 3000TL Single Tracker
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