SMA SUNNY BOY 3000TL Single Tracker, Руководство по обслуживанию

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Event number Display message, cause and corrective measures
3501 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 5, page 19).
3601 High discharge curr. > Check generator
The leakage currents of the inverter and the PV array are too high. There is a
ground fault, a residual current or a malfunction.
The inverter interrupts feed-in operation immediately after exceeding a thresh-
old. When the fault is eliminated, the inverter automatically reconnects to the
utility grid.
Corrective measures:
• Check the PV system for ground faults (see Section 5, page 19).
3701 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 5, page 19).
3801 to 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 to 3902
Waiting for DC start conditions > Start cond. not met
The feed-in conditions for the utility grid are not yet fulfilled.
Corrective measures:
• Wait for higher irradiation.
• If this message is displayed frequently in the morning, increase the
voltage limit for starting grid feed-in. Change the parameter Critical
voltage to start feed-in .
• If this message is displayed frequently with medium irradiation, ensure
that the PV array is correctly rated.
6001 to 6438 Self-diagnosis > Interference device
The cause must be determined by the Service.
Corrective measures:
• Contact the Service (see Section 11, page 30).
4 Troubleshooting SMA Solar Technology AG
Service Manual 15 SB30-60TL-21-SG-en-11