c1 drafted · lead SBxx-US-1XP-41-BA-en-12
- SBxx-US-1XP-41-BA-en-12
sec=6.2.66h=d9920f98dbb5 - SBxx-US-1XP-41-BA-en-12
sec=h434h=a3877c085030
Fault codes › SMA › Sunny Boy 3.0-7.7-US (SBx.x-1SP-US-41)
SMA SB-US-41 9034
Class
not stated
Production
not stated
Clears
not stated
Decoded
Reports rapid shutdown failure; look at PV array disconnect switch; confirm with DC voltage measurement; do: inverter settings review, PV switch function check.
What can be behind Rapid shutdown failure
Failure modes that present as the reported condition, and the tests that tell them apart.
- Rapid shutdown device failure drafted · lead
Defined in
- SBxx-US-1XP-41-BA-en-12 — SMA drafted · lead
sec=6.2.66h=d9920f98dbb5sec=h434h=a3877c085030
- Event 9034 with STP-US-41 and SB-US-41 — SMA drafted · lead
sec=h1h=1ed454275821
The manufacturer's own cause and corrective text is not reproduced here.
Same condition on other equipment
Same code in other families
Claims
defined_in
c2 drafted · lead Event 9034 with STP-US-41 and SB-US-41
- Event 9034 with STP-US-41 and SB-US-41
sec=h1h=1ed454275821
reports
c3 drafted · lead Rapid shutdown failure
- STP33-62-US-41 ops manual
tbl=12.r2h=a15113bcec60 - STP33-62-US-41-BA-en-14
tbl=24.r2h=7e25a82051cf - SBxx-US-1XP-41-BA-en-12
sec=h435h=0f9623b7f0ff
affects
c4 drafted · lead PV array disconnect switch
- STP33-62-US-41 ops manual
tbl=12.r2h=a15113bcec60 - STP33-62-US-41-BA-en-14
tbl=24.r2h=7e25a82051cf - SBxx-US-1XP-41-BA-en-12
sec=h435h=0f9623b7f0ff
detected_by
c5 drafted · lead DC voltage measurement
Standby voltage of switches per string must be below 30 V.
- SBxx-US-1XP-41-BA-en-12
sec=h436h=ab549348ae54 - SBSExx-US-50-BE-en-11
sec=h744h=ab549348ae54 - STPxx-US-50-BE-en-14
sec=h628h=ab549348ae54
review note: support check: partial - The passages say to check the switches' standby voltage is below 30 V, but they don't name DC voltage measurement…
mitigated_by
c6 drafted · lead Inverter settings review
Rapid shutdown mode must match the DC disconnection unit used.
- SBxx-US-1XP-41-BA-en-12
sec=h436h=ab549348ae54 - SBSExx-US-50-BE-en-11
sec=h744h=ab549348ae54 - STPxx-US-50-BE-en-14
sec=h628h=ab549348ae54
c7 drafted · lead PV switch function check
- SBxx-US-1XP-41-BA-en-12
sec=h436h=ab549348ae54 - SBSExx-US-50-BE-en-11
sec=h744h=ab549348ae54 - STPxx-US-50-BE-en-14
sec=h628h=ab549348ae54
applies_to
c8 drafted · lead Sunny Boy 3.0-7.7-US-41 proposed
- SBxx-US-1XP-41-BA-en-12
sec=6.2.66h=d9920f98dbb5 - SBxx-US-1XP-41-BA-en-12
sec=h434h=a3877c085030 - Event 9034 with STP-US-41 and SB-US-41
sec=h1h=1ed454275821