SMA SUNNY BOY 5000 - 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 17SB36-50SE-SG-en-10