SMA SUNNY BOY - Manual (Page 37)

SMA Solar Technology AG Measurement Channels and Messages
User Manual SB_SMC-BEN092840 37
MWE Defect DC Internal measurement comparison fault or hardware defect.
Corrective measures
• Please contact your installer or the SMA Solar Technology
Serviceline if this problem recurs.
MSD-dI Internal measurement comparison fault or hardware defect.
Corrective measures
• Please contact your installer or the SMA Solar Technology
Serviceline if this problem recurs.
MSD-FAC Internal measurement comparison fault or hardware defect.
Corrective measures
• Please contact your installer or the SMA Solar Technology
Serviceline if this problem recurs.
MSD-Vac Internal measurement comparison fault or hardware defect.
Corrective measures
• Please contact your installer or the SMA Solar Technology
Serviceline if this problem recurs.
MSD-Timeout /
NUW-Timeout Internal measurement comparison fault or hardware defect.
Corrective measures
• Please contact your installer or the SMA Solar Technology
Serviceline if this problem recurs.
MSD-Zac Internal measurement comparison fault or hardware defect.
Corrective measures
• Please contact your installer or the SMA Solar Technology
Serviceline if this problem recurs.
Offset Fault in the acquisition of measurement data.
Corrective measures
• Please contact your installer or the SMA Solar Technology
Serviceline if this problem recurs.
PowerBalance The Sunny Mini Central is part of a three-phase system with two further
Sunny Mini Centrals. This is equipped with the SMA Power Balancer for
preventing unbalanced loads. The operating parameter "PowerBalancer"
is set to "PhaseGuard" or "FaultGuard".
Corrective measures
• For more detailed descriptions of the operation modes
„PhaseGuard“ and „FaultGuard“ please refer to Section
6.2 "Status Messages" (page 29) under „Balanced“.
Message Description and corrective measure