Error no. Explanation
Inverter behavior
Corrective measures
S1
S2
R
3601
Leakage current to ground has oc-
curred 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 system
design.
• Check the parameter
RisoCtlWarn
.
3803
The PV array current is too high.
1 min
D
‒
• Check the DC input current.
• Check the module wiring and system
design.
4003
Reverse currents detected in the PV
array or DC connection polarity
reversed.
30 s
Q
‒
• Check the PV modules for short circuits.
• Check the module wiring and system
design.
• Check the DC terminals for correct
polarity.
• Check the functionality of the entire
string.
Error no. Explanation
Inverter behavior
Corrective measures
S1
S2
R
3403
PV array voltage is too high.
15
min
30
min
‒
• Check the DC voltage.
• Check the module wiring and system
design.
3404
Open-circuit voltage is too high.
Disturbance detected by standard
monitoring.
15
min
30
min
‒
3406
The DC voltage is too high.
15
min
30
min
‒
3501
The insulation monitoring device
has measured a too low ground-
ing resistance.
C
C
‒
• Check the PV array for ground faults.
3502
The GFDI has tripped.
C
C
‒
• Check the PV array for ground faults.
3504
The insulation monitoring device
has detected an insulation error.
If the parameter
IsoErrIgn
is set to
On
, this error is ignored.
W
W
‒
• Check the PV array for ground faults.
3507
A ground fault has occurred on
the ungrounded terminal of the PV
array.
Q
Q
‒
• Check the PV array for ground faults.
3510
The inverter has detected an insu-
lation error on the inverter bridge.
Q
Q
‒
• Check the PV array for ground faults.
3511
The inverter has detected an insu-
lation error.
W
W
‒
• Check the PV array for ground faults.
9 Troubleshooting
SMA Solar Technology AG
System Manual
MVPS22JP-SH-en-11
126
Summary of Contents for 1000-1SC
Page 257: ......