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8. Trouble shooting
In most situations, the inverter requires very little service. However, if inverter
is not able to work perfectly, please refer to the following instructions before
calling your local dealer.
Should any problems arise, the red (Fault) LED on the front panel turns
on and the LCD displays the relevant information. Please refer to the
following table for a list of potential problems and their solutions.
Display
Possible actions
Isolation Fault
1. Check the impedance is between PV (+) & PV
(-) and the PV-Inverter is earthed. The
impedance must be greater than 2M
Ω
2. If the problem persists please call service
Ground I Fault
1. The ground current is too high.
2. Unplug the inputs from the PV generator and
check the peripheral AC system
3. After the cause is cleared, re-plug the PV panel
and check PV-Inverter status.
4. If the problem persists please call service.
Grid Fault
1. Wait for 30 seconds, if the grid returns to
normal, PV-Inverter automatically restarts.
2. Make sure grid voltage and frequency meet the
specifications
3. If the problem persists please call service
Impedance
Fault
1. Grid impedance higher than the permissible
value.
2. Wait for 30 seconds, see if it works again.
3. Check the wires between the PV-Inverter and
grid. Replace with larger wires if necessary.
4. Adjust impedance parameter by Data Program.
5. If the problem persists please call service
System
Fault
No Utility
1. Grid is not connected.
2. Check grid connection cables.
3. Check grid usability.
Summary of Contents for CPS SC1.5KTL
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