SMA SUNNY TRIPOWER CORE1 Operating Manual page 75

SMA Solar Technology AG
Event number
3501
3701
3801 to 3805
6002 to 6412
6502
6512
Operating manual
Message, cause and corrective measures
Insulation failure > Check generator
The inverter has detected a ground fault in the PV array.
Corrective measures:
• Check the PV system for ground faults (see Section 12.4, page 87).
Resid.curr.too.high > Check generator
The inverter has detected a residual current due to temporary grounding of the
PV array.
Corrective measures:
• Check the PV system for ground faults (see Section 12.4, page 87).
DC overcurrent > Check generator
Overcurrent at the DC input. The inverter briefly interrupts feed-in operation.
Corrective measures:
• If this message is displayed frequently, ensure that the PV array has been
correctly rated and wired.
Self diagnosis > Interference device
The cause must be determined by the Service.
Corrective measures:
• Contact the Service (see Section 16 "Contact", page 102).
Self-diagnosis > Overtemperature
The inverter has switched off due to excessive temperature.
Corrective measures:
• Clean the cooling fins on the rear of the enclosure and the air ducts on
the top using a soft brush.
• Ensure that the inverter has sufficient ventilation.
• Ensure that the ambient temperature +35°C has not been exceeded.
• Ensure that the inverter is not exposed to direct solar irradiation.
Minimum operating temperature not reached
The inverter will only recommence grid feed-in once the temperature has
reached at least −25°C.
12 Troubleshooting
STP50-40-BE-en-12 75