SMA SMC 7000HV Installation - Manual (Page 69)

SMA Solar Technology AG Troubleshooting
Installation Manual SMC70HV11-IA-IEN112970 69
Imax/overcurrent Overcurrent on the AC side. This message is displayed if the current on
the AC grid is larger than specified.
Corrective measures
• Check the system design and grid conditions.
K1-Close
K1-Open Fault during relay test.
Corrective measures
• If this fault frequently occurs or occurs several times consecutively,
contact the SMA Serviceline.
MSD-Fac Internal measurement comparison fault or hardware defect.
Corrective measures
• If this disturbance occurs frequently, contact the SMA Serviceline.
MSD-Vac Internal measurement comparison fault or hardware defect.
Corrective measures
• If this disturbance occurs frequently, contact the SMA Serviceline.
MSD-Timeout Internal measurement comparison fault or hardware defect.
Corrective measures
• If this disturbance occurs frequently, contact the SMA Serviceline.
MSD-Zac Internal measurement comparison fault or hardware defect.
Corrective measures
• If this disturbance occurs frequently, contact the SMA Serviceline.
Offset The "Offset" operating state is a normal operating condition that occurs
prior to grid monitoring.
If "Offset" is displayed as a fault, then there is a disturbance in the data
logging.
Corrective measures
• If this disturbance occurs frequently, contact the SMA Serviceline.
PowerBalance The Sunny Mini Central is part of a three-phase system with two further
Sunny Mini Centrals equipped with the SMA Power Balancer for
preventing unbalanced loads. The operation parameter "PowerBalancer"
is set to "PhaseGuard" or "FaultGuard".
Corrective measures
• For more detailed descriptions of the operation modes
"PhaseGuard" and "FaultGuard", refer to section 5.5 "Connection
of the SMA Power Balancer" (page 38).
Message Description and corrective measure