Installation and Operation Guide SOLECTRIA PVI 25TL-480-R
DOCR-071030-A (11/17/2020)
Page 81 of 101
6.Contact after-sales service personnel
Protect0180
(The sampling
offset of DCI)
Recommended solutions:
1. If the inverter can start up, then recalibrate.
2. If the inverter always report this alarm and cannot start up,
then replace inverter.
Protect0170
(DCI high)
Recommended solutions:
1. Raise limit of DCImax (for example, 400mA) to allow inverter
more room to adjust in transient condition to cope with imbalance
of impedance and voltage between Grid phases
2. After raising limit, if inverter cannot clear fault, replace inverter.
IsolationErr
(Insulation
resistance low)
Check wires of PV and ground:
1. Turn OFF AC switch to disconnect inverter from Grid.
2. Open fuse drawers to de-couple PV strings from each other.
Test strings with string test set.
3. Add one PV string at a time, and start up inverter to see if alarm
occurs.
4. If there is no alarm, turn OFF AC switches to disconnect from
Grid and add in the next string. Startup inverter again.
5. Continue until you can find the string that triggers the alarm.
Trace wirings of faulted string to find any leakage to Earth Ground.
6. The parameter ISOResist in hidden menu can be adjusted a bit.
GFCIErr
(leakage current
high)
Check wires of PV and ground:
1. Turn OFF AC switch to disconnect inverter from Grid.
2. Open fuse drawers to de-couple PV strings from each other.
Test strings with string test set
3. Add one PV string at a time, and start up inverter to see if alarm
occurs.
4. If there is no alarm, turn OFF AC switches to disconnect from
Grid and add in the next string. Startup the inverter again.
5. Continue until you can find the string that triggers the alarm.
Trace wirings of faulted string to find any leakage to Earth Ground.
Protect0150
Recommended solutions: