10 Troubleshooting
SMA Solar Technology AG
Operating manual
STP15-25TL-30-BE-en-17
60
Event number
Message, cause and corrective measures
3801
3802
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.
3901
3902
Waiting for DC start conditions > Start cond. not met
The feed-in conditions for the utility grid are not yet fulfilled.
Corrective measures:
1. If irradiation is too low, wait for it to increase.
2. If this message is displayed frequently in the morning, increase the
voltage limit for starting grid feed-in. Change the parameter
minimum
voltage input
or
A.VStr, B.VStr
.
3. If this message is displayed frequently with medium irradiation, ensure
that the PV array is correctly rated.
6001-6438
Self diagnosis > Interference device
The cause must be determined by the Service.
Corrective measures:
• Contact the service.
6501-6511
Self diagnosis > Interference device
The inverter has switched off due to excessive temperature.
Corrective measures:
1. Clean the fans.
2. Ensure that the inverter has sufficient ventilation.
6512
Minimum operating temperature not reached
The inverter will only recommence grid feed-in once the temperature has
reached at least −25°C.
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