c1 drafted · lead SBxx-US-1XP-40-BA-en-13
- SBxx-US-1XP-40-BA-en-13
sec=h184h=36c1cc2f9d70 - SBxx-US-1XP-40-BA-en-13
sec=h185h=493f3196f5e0
Fault codes › SMA › Sunny Boy 3.0-7.7-US (SBx.x-1SP/1TP-US-40)
SMA SB-US-40 601
Class
not stated
Production
not stated
Clears
not stated
Decoded
Reports high DC injection; confirm with grid DC component measurement; do: utility company consultation, inverter parameter adjustment.
What can be behind High DC injection
Failure modes that present as the reported condition, and the tests that tell them apart.
Defined in
- SBxx-US-1XP-40-BA-en-13 — SMA · page 47 drafted · lead
sec=h184h=36c1cc2f9d70sec=h185h=493f3196f5e0
The manufacturer's own cause and corrective text is not reproduced here.
Same condition on other equipment
Same code in other families
- SMA SB-US-41 601
- SMA SBSE-US-50 601
- SMA PEAK3-US 601
- SMA CORE1-US 601
- SMA STP-TL-US 601
- SMA STP-X-US 601
Claims
defined_in
reports
c2 drafted · lead High DC injection
- STP33-62-US-41 ops manual
sec=h165h=2ab8e611c91f - SBxx-US-1XP-40-BA-en-13
sec=h185h=493f3196f5e0 - STPTL-US-10-IA-xx-22
tbl=14.r1h=c395530b0b12 - SBxx-US-1XP-41-BA-en-12
sec=h237h=bdf5d0cb813c - SBSExx-US-50-BE-en-11
sec=h489h=bdf5d0cb813c - STPxx-US-50-BE-en-14
sec=h423h=bdf5d0cb813c - SHPxxx-US-21-BE-en-11
sec=h300h=bdf5d0cb813c
detected_by
c3 verified · fact Grid DC component measurement
- STP33-62-US-41-BA-en-13
sec=h249h=f7988acc8abf - STP33-62-US-41 ops manual
sec=h166h=f7988acc8abf - STP33-62-US-41-BA-en-14
sec=h251h=f7988acc8abf - SBxx-US-1XP-40-BA-en-13
sec=h186h=f7988acc8abf - STPTL-US-10-IA-xx-22
tbl=14.r1h=c395530b0b12 - SBSExx-US-50-BE-en-11
sec=h490h=f7988acc8abf - STPxx-US-50-BE-en-14
sec=h424h=f7988acc8abf - SHPxxx-US-21-BE-en-11
sec=h301h=f7988acc8abf
verified by: review-workflowverified on: 2026-10-23review note: support check: partial - Inverter detects DC in grid current, but no explicit measurement method is stated; monitoring threshold implies it.
mitigated_by
c4 drafted · lead Utility company consultation
When the message appears frequently.
- STP33-62-US-41-BA-en-13
sec=h249h=f7988acc8abf - STP33-62-US-41 ops manual
sec=h166h=f7988acc8abf - STP33-62-US-41-BA-en-14
sec=h251h=f7988acc8abf - SBxx-US-1XP-40-BA-en-13
sec=h186h=f7988acc8abf - STPTL-US-10-IA-xx-22
tbl=14.r1h=c395530b0b12 - SBSExx-US-50-BE-en-11
sec=h490h=f7988acc8abf - STPxx-US-50-BE-en-14
sec=h424h=f7988acc8abf - SHPxxx-US-21-BE-en-11
sec=h301h=f7988acc8abf
c5 drafted · lead Inverter parameter adjustment
Raising the monitoring threshold, if the grid operator agrees.
- STP33-62-US-41-BA-en-13
sec=h249h=f7988acc8abf - STP33-62-US-41 ops manual
sec=h166h=f7988acc8abf - STP33-62-US-41-BA-en-14
sec=h251h=f7988acc8abf - SBxx-US-1XP-40-BA-en-13
sec=h186h=f7988acc8abf - SBSExx-US-50-BE-en-11
sec=h490h=f7988acc8abf - STPxx-US-50-BE-en-14
sec=h424h=f7988acc8abf - SHPxxx-US-21-BE-en-11
sec=h301h=f7988acc8abf
applies_to
c6 drafted · lead Sunny Boy 3.0-7.7-US-40 proposed
- SBxx-US-1XP-40-BA-en-13
sec=h184h=36c1cc2f9d70 - SBxx-US-1XP-40-BA-en-13
sec=h185h=493f3196f5e0