Activating And Deactivating Reverse-Current Protection At Input Area A - SMA SUNNY TRIPOWER 15000TL Economic Excellence Installation Manual

Electrical Connection
6.7 Activating and Deactivating Reverse-Current Protection at
Input Area A
Reverse-current protection is activated upon delivery. If you are using both input areas, reverse-current
protection must be activated at both input areas.
If you are using only input area A, you can deactivate the reverse current protection at input area A,
which will slightly increase the inverter efficiency.
The reverse-current protection at input area B cannot be deactivated.
The procedure for deactivating and reactivating the reverse-current protection at input area A is
described below.
Requirements for deactivating reverse-current protection:
• Input area B must not be used.
• The reverse-current resistance of the PV modules must be complied with.
Procedure
1. If the inverter is in operation, disconnect it (see Section 8 "Disconnecting the Inverter from
Voltage Sources" (page 55)).
2. Release the screws of the upper enclosure lid.
For this purpose, use an Allen key (AF 4).
3. Pull the upper enclosure lid forwards to remove it.
Jumper cable
Use only the supplied jumper cable to deactivate the reverse-current protection.
4. Deactivate or activate the reverse-current protection at input area A as follows:
– To deactivate the reverse-current protection,
insert both ends of the jumper cable into the
yellow terminals as far as they will go. Do not
kink the cable.
50 STP15-20TLEE-IA-en-23
SMA Solar Technology AG
Installation Manual