SMA SB 1.5-1VL-40 Service Manual - Manual (Page 15)

Event number 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 6, page 26).
3601 High discharge curr. > Check generator
The leakage current of the inverter and the PV array is 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 6, page 26).
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 6, page 26).
3801 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:
• Ensure that the PV array is not covered by snow or otherwise shaded.
• 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 SMA Service Line.
Corrective measures:
• Contact the Service (see Section 11 "Contact", page 33).
4 Event Messages SMA Solar Technology AG
Service Manual for Installers 15 SB15-25-SG-en-10