SMA SB 2500TL-21 Installation - Manual (Page 52)

Commissioning SMA Solar Technology AG
52 SB25-30TLST-21-IA-en-13 Installation Manual
7 Commissioning
7.1 Commissioning the Inverter
1. The following conditions must be fulfilled before commissioning:
– Correct mounting (see Section 5.3)
– Correct country setting (see Section 6.5.1)
– AC cable is correctly connected (electricity grid)
– Protective conductor is correctly connected (see Section 6.3.3)
– DC cables (PV strings) are correctly connected
– Unused DC inputs are closed using the corresponding DC connectors and sealing plugs
– All enclosure openings are closed
– The enclosure lid is securely screwed into place
– An external DC switch-disconnector is connected or, if applicable, the ESS is firmly in place
– The AC distribution is correctly installed
– The miniature circuit-breaker is correctly sized
2. Switch the miniature circuit-breaker on.
☑ Green LED is lit: commissioning successful.
or
☑ Green LED will flash if irradiation is insufficient: grid connection conditions have not yet been
reached. Wait for sufficient irradiation.
or
☑ Red LED is lit: a disturbance has occurred. Locate and eliminate the fault
(see Section 11 "Troubleshooting" (page 64)).
3. If a multi-function relay is connected, switch on the supply voltage to the relay.
4. For communication via Bluetooth, make the following settings:
– Change the plant time (see the manual of the communication product).
– Change the passwords (see the manual of the communication product).
Self-test in accordance with CEI 0-21 during initial start-up (applies to Italy only)
The Italian standard prescribes that an inverter can only operate on the electricity grid after
the disconnection times for overvoltage, undervoltage, minimum frequency and maximum
frequency have been checked.
If you have configured the CEI0-21 Int / CEI 0-21 intern country data set, start the self-test
(see Section 7.3 "Self-Test in Accordance with CEI 0-21 for Plants ≤ 6 kW" (page 54)).