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Fault codes › SMA › Sunny Boy 3.0-7.7-US (SBx.x-1SP/1TP-US-40)

SMA SB-US-40 3901-3902

Code: 3901-3902
Page: 50
ID: fc:sma-sb-us-40-3901-3902
IRI: https://solarlattice.org/kb/fc/sma-sb-us-40-3901-3902
Status: active
Also known as: 3901-3902, SMA 3901-3902
Category: Inverters

Class not stated

Production not stated

Clears by itself drafted · lead

Decoded

Reports insufficient solar irradiance; look at PV array; do: inverter parameter adjustment.

What can be behind Insufficient solar irradiance

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 50 drafted · lead
- sec=h215 h=9c02e83a3fa4

The manufacturer's own cause and corrective text is not reproduced here.

Same condition on other equipment

ABB / FIMER: ABB / FIMER PVS-166-175-TL W001, ABB / FIMER PVS-166-175-TL W002, ABB / FIMER PVS-60-TL W001, ABB / FIMER PVS-60-TL W002, ABB / FIMER TRIO-20.0-27.6-TL W001, ABB / FIMER TRIO-20.0-27.6-TL W002, ABB / FIMER UNO-DM-3.3-5.0-PLUS W001, ABB / FIMER UNO-DM-3.3-5.0-PLUS W002, ABB / FIMER UNO-DM-6.0-PLUS W001, ABB / FIMER UNO-DM-6.0-PLUS W002
SMA: SMA SB-US-41 3301, SMA SB-US-41 3303, SMA SBSE-US-50 3302, SMA SBSE-US-50 3303, SMA STP-TL-US 3301, SMA STP-TL-US 3302, SMA STP-TL-US 3303, SMA STP-TL-US 3901-3902
Schneider Electric: Schneider Electric CL125 075

Same code in other families

SMA STP-TL-US 3901-3902

Claims

`defined_in`

c1 drafted · lead SBxx-US-1XP-40-BA-en-13

SBxx-US-1XP-40-BA-en-13 sec=h215 h=9c02e83a3fa4

`reports`

c2 drafted · lead Insufficient solar irradiance

SBxx-US-1XP-40-BA-en-13 sec=h216 h=4c08e1cc039f
SBxx-US-1XP-40-BA-en-13 sec=h217 h=25763edab45d
STPTL-US-10-IA-xx-22 tbl=16.r2 h=751ce4fac423

review note: support check: partial - Passages say start conditions not met and wait for higher irradiation, but don't explicitly name insufficient irradiance as the symptom…

`affects`

c3 drafted · lead PV array

SBxx-US-1XP-40-BA-en-13 sec=h217 h=25763edab45d

`mitigated_by`

c4 drafted · lead Inverter parameter adjustment

Applies when the message recurs frequently in the morning.

SBxx-US-1XP-40-BA-en-13 sec=h217 h=25763edab45d
STPTL-US-10-IA-xx-22 tbl=16.r2 h=751ce4fac423

`has_recovery`

c5 drafted · lead Auto-reset (clears by itself)

SBxx-US-1XP-40-BA-en-13 sec=h217 h=25763edab45d
STPTL-US-10-IA-xx-22 tbl=16.r2 h=751ce4fac423

review note: support check: partial - Waiting for higher irradiation implies it resolves once conditions are met, but auto-reset is not explicitly stated.

`applies_to`

c6 drafted · lead Sunny Boy 3.0-7.7-US-40 proposed

SBxx-US-1XP-40-BA-en-13 sec=h215 h=9c02e83a3fa4

Data