SMA SUNNY CENTRAL 500CP XT User Manual page 69

SMA Solar Technology AG
Error no. Explanation
3501 The insulation monitoring device
has measured a too low ground-
ing resistance.
3502 The GFDI has tripped.
3504 The insulation monitoring device
has detected an insulation error.
If the parameter IsoErrIgn is set to
On, this error is ignored.
3507 A ground fault has occurred on
the ungrounded terminal of the PV
array.
3510 The inverter has detected an insu-
lation error on the inverter bridge.
3511 The inverter has detected an insu-
lation error.
3512 The Remote GFDI has detected a
permanent ground fault.
3515 A ground fault detected by
Soft Grounding has been ignored.
3517 Insulation measuring is being per-
formed.
3520 An insulation fault has occurred
and has been fixed.
3601 Leakage current to ground has oc-
curred in the PV array or the
threshold defined in parameter
RisoCtlWarn has been reached.
3803 The PV array current is too high.
4003 Reverse currents detected in the PV
array or DC connection polarity
reversed.
User Manual
Inverter behavior Corrective measures
S1 S2 R
C C ‒ • Check the PV array for ground faults.
C C ‒ • Check the PV array for ground faults.
W W ‒ • Check the PV array for ground faults.
Q Q ‒ • Check the PV array for ground faults.
Q Q ‒ • Check the PV array for ground faults.
W W ‒ • Check the PV array for ground faults.
Q Q ‒ • Check the PV array for ground faults.
W W ‒ • Check the PV array for ground faults.
W W ‒ ‒
W W ‒ ‒
W W ‒ • Check the grounding and equipotential
• Check the module wiring and system
• Check the parameter RisoCtlWarn.
1 min D ‒ • Check the DC input current.
• Check the module wiring and system
30 s Q ‒ • Check the PV modules for short circuits.
• Check the module wiring and system
• Check the DC terminals for correct
• Check the functionality of the entire
7 Troubleshooting
bonding.
design.
design.
design.
polarity.
string.
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