SMA SC 500CP-US-10 600V - Manual (Page 82)

11 Troubleshooting SMA America, LLC
82 SCCP-US-BE-US_en-52 Operating Manual
3601 Leakage current to ground has occurred in
the PV array or the threshold defined in
parameter RisoCtlWarn has been
reached.
W W ‒ • Check the grounding and
equipotential bonding.
• Check the module wiring and
PV system design.
• Check the RisoCtlWarn
parameter.
3803 The DC current of the PV array is too high. 1 min D x • Check the DC input current.
• Check the module wiring and
plant design.
4003 Reverse currents detected in the PV array
or DC connection polarity is reversed.
30 s A ‒ • Check PV modules for short
circuits.
• Check the module wiring and
plant design.
• Make sure the DC terminals
have the correct polarity.
Error no. Explanation Behavior of the
inverter
Corrective measures
S 1 S 2 R