YASKAWA PVI 23 TL Installation And Operation Manual page 54

PVI 23TL, 28TL Installation and Operation Manual (Rev J)
Protection 4. GridF.OutLim
5- PV1 (2)
Protection
VoltOver
6. PV1 (2)
Protection
Reverse
Protection 7. GFCI.Err
Protection 8. IsolationErr
DOCR-070365-J
1. Grid frequency is
out of range.
Grid voltage
frequency is
abnormal
2. Loose AC
connections.
DC input
voltage exceeds
1. DC over-voltage.
the specified
value
DC inputs 1. PV positive pole
connected with and negative pole
incorrect are connected in
polarities reverse.
1. Excessive parasitic
capacitance on PV
module due to
DC leakage
insulation failure.
current is above
recommended
value
2. Abnormal
grounding
conditions.
DC insulation 1. Insulation to
impedance to ground is below
ground recommended value.
1. Observe for 10min and
see whether the alarm is
cleared automatically.
2. Verify grid frequency is
within range.
3. Verify proper AC wiring.
4. If error does not clear,
Contact Solectria
Customer Service.
1. Observe for 30min and
see whether the alarm is
cleared automatically.
2. Verify DC open circuit
input voltage is within
specified range.
3. Switch off the inverter's
internal disconnects.
Switch the Inverter back
on.
4. If error does not clear,
contact Solectria
Customer Service.
1. Verify DC voltage
polarity is correct on all
inputs.
2. If error does not clear,
contact Solectria
Customer Service.
1. Observe for 10min and
see whether the alarm is
cleared automatically.
2. Contact System installer
to check installation for
possible Ground Fault.
3. If error does not clear,
contact Solectria
Customer Service.
Contact System installer
to check installation for
possible Ground Fault.
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