6 Installing the BFS assembly
SMA Solar Technology AG
Replacement Manual
STP50-4x-BFS-RM-xx-11
16
11. Push the ribbon cable
X1
from the COM assembly through the opening in the mounting plate
with COM assembly. This will prevent the ribbon cable from being torn off when removing the
mounting plate.
12. Remove the 4 mounting plate connecting screws
(TX20).
13. Remove the mounting plate incl. COM assembly from the inverter. To do so, use an angled
tool on the upper edge of the mounting plate to lever the mounting plate out of the fixing.
14. Remove all plugs from the used jacks of the BFS assembly. Disconnect the ribbon cable on the
STP 50-41, STP 33-US-41, STP 50-US-41 and STP 62-US-41 inverters at the bottom of the BFS
assembly.
15. Remove the 4 connecting screws of the BFS
assembly (TX20) and dispose of them properly.
16. Remove the BFS assembly from the inverter.
6
Installing the BFS assembly
There are sections on this assembly with a safety extra-low voltage circuit (SELV circuit). To ensure
the safety of the circuits, an optical inspection must be carried out before installation.
Procedure:
1. Check the marked area and the area around both
pulse transformers for visible dirt before mounting
the assembly. If dust or other deposits cover the
assembly, it must not be used. Contact the Service
department (see Section , page 000).
2. Insert the BFS assembly in the inverter and screw into place using 4 screws from the scope of
delivery (TX20, torque: 3.5 Nm ± 0.5 Nm (30.98 in-lb ± 4.43 in-lb)).
3. Insert all plugs into the respective jacks of the BFS assembly.
ENGLISH
Summary of Contents for STP 33-US-41
Page 57: ...1 SMA Solar Technology AG STP50 4x BFS RM xx 11 57 1 5 1 6 X703 1 X703 6 10...
Page 60: ...2 SMA Solar Technology AG STP50 4x BFS RM xx 11 60 DC DC DC DC 5...
Page 61: ...2 SMA Solar Technology AG STP50 4x BFS RM xx 11 61 AC DC DC AC DC 1000 V...
Page 62: ...2 SMA Solar Technology AG STP50 4x BFS RM xx 11 62 DC 5 C v v...
Page 67: ...5 BFS SMA Solar Technology AG STP50 4x BFS RM xx 11 67 5 DC DC DC 1 1 6 DC DC DC 7 8 X1...
Page 196: ...1 SMA Solar Technology AG STP50 4x BFS RM xx 11 196 1 5 1 6 X703 1 X703 6 10 WCtlHz Hz...
Page 198: ...2 SMA Solar Technology AG STP50 4x BFS RM xx 11 198 2 2 5 DC DC DC DC DC...
Page 199: ...2 SMA Solar Technology AG STP50 4x BFS RM xx 11 199 5 AC DC DC AC...
Page 200: ...2 SMA Solar Technology AG STP50 4x BFS RM xx 11 200 DC 1000 V DC 5 C...
Page 205: ...5 BFS SMA Solar Technology AG STP50 4x BFS RM xx 11 205 5 DC DC DC 1 1 6 DC DC DC 1 7 8 X1...
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