SMA WB 5000A-11 Installation - Manual (Page 68)

Troubleshooting SMA Solar Technology AG
68 WB5A_6A-IA-IEN114540 Installation Manual
K1-Close
K1-Open Error during relay test.
Corrective measures
• Contact the SMA Service Line if this disturbance occurs frequently
or recurrently.
MSD-Fac
MSD-Vac
MSD-Timeout Internal measurement comparison disturbance or hardware defect.
Corrective measures
• Contact the SMA Service Line if this disturbance occurs frequently.
Offset The "Offset" operating state is a normal operating state that occurs prior
to grid monitoring. If "Offset" is displayed as an error, there is a
disturbance in the data logging.
Corrective measures
• Contact the SMA Service Line if this disturbance occurs frequently.
PowerBalance The inverter is part of a three-phase system with two further inverters and
equipped with the SMA Power Balancer for preventing asymmetric
loads. The operating parameter "PowerBalancer" is set to "PhaseGuard"
or "FaultGuard".
Corrective measures
• For detailed descriptions of the operation modes "PhaseGuard"
and "FaultGuard", refer to Section 5.5.1 "Configuration"
(page 36).
Riso The electrical insulation between the small wind turbine system and
ground is faulty. The resistance between the DC plus and/or DC minus
connection and ground is outside the defined limit range.
Corrective measures
• Check the insulation of the small wind turbine system.
• Check the small wind turbine system for ground faults as described
in Section 9.3.1 "Checking the Small Wind Turbine System for a
Ground Fault" (page 71).
ROM The inverter firmware is faulty.
Corrective measures
• Contact the SMA Service Line if this disturbance occurs frequently.
Shutdown Temporary inverter disturbance.
Corrective measures
• Contact the SMA Service Line.
Trafo-Temp-F Temperatures in the transformer have exceeded the acceptable limit. The
inverter stops feeding the grid until the temperature reverts to within the
acceptable range.
• If this fault occurs frequently, check the heat dissipation.
Message Description and Corrective Measures