Sunway NT 10000 user manual Errors 017 to, Errors 020 to, Errors 023 to

Errors 017 to 019

· AFI fault current

The error «AFI fault current» occurs if fault current has penetrated the PV system and the Solar Inverter has subsequently discon- nected from the grid. The earth fault is monitored on the AC and on the DC side (universal current sensitive FI). If this error message occurs, the entire PV system must be checked for insulation faults. The func- tioning method complies with E DIN VDE 0126-1-1. In case of fault current at inlet 1 of the PV generator, for example, «error 017» will be flagged.

Errors 020 to 022

· Insulation faults

Prior to start-up, your Solar Inverter always checks the PV system for an earth fault or an insulation fault. Should such a fault be detected, the injection will not start. The functioning method complies with E DIN VDE 0126-1-1. In case of an insulation fault at inlet 2 of the PV generator, for example, «error 021» will be flagged.

Errors 023 to 025

· DC injection

Your Solar Inverter continuously monitors the quality of the injected electricity. If an increased share of DC current is detected in the injected electricity, the Solar Inverter will stop the injection The Solar Inverter will only try to continue the injection after the system has been shut down and restar-

ted manually, or automatically the nextGB day.

Error 026

· Isolated operation

Your Solar Inverter is equipped with a high-quality redundant grid monitoring system that complies with E DIN VDE

0126-1-1 and continuously monitors the grid. If one of the monitoring phases fails, or if the phase relation changes between the individual conductors, the Solar Inverter will stop the injection and only restart when the error has been elimina- ted, i. e. when the AC grid works properly again.

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