SMA SB 3600SE-10 Service Manual - Manual (Page 17)

Error number Display message, cause and corrective measures
3405 IRE defective > Disconnect the PV array
Corrective measures:
• Immediately disconnect the inverter from all voltage sources (see
Section 2.3, page 8).
• Check whether the DC voltage is below the maximum input voltage
of the inverter. If the DC voltage is below the maximum input voltage
of the inverter, reconnect the DC connectors to the inverter.
• If the DC voltage is above the maximum input voltage of the
inverter, ensure that the PV array has been correctly rated or contact
the installer of the PV array.
• If this message is displayed frequently, contact the
SMA Service Line.
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 26).
3601 High discharge current > Check generator
The leakage current from 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
limiting value. When the fault is eliminated, the inverter automatically re-
connects to the utility grid.
Corrective measures:
• Check the PV system for ground faults (see Section 5, page 26).
3701 Residual current 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 26).
3801 to 3802 DC overcurrent > Check generator
Overcurrent at the DC input. The inverter briefly interrupts feed-in opera-
tion.
Corrective measures:
• If this message is displayed frequently, ensure that the PV array has
been correctly rated and wired.
4 Troubleshooting SMA Solar Technology AG
Service Manual 17 SB36-50SE-SG-en-10