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Error Code - 326 - Abnormal Grounding - Alert Severity Major

Alarm ID
Alarm Name
Alarm Severity
Possible Cause
Suggestion
326
Abnormal Grounding
Major
Cause ID = 1
  • The neutral wire or PGND cable does not connect to the SUN2000.
  • When you are grounding the PV string, you do not connect an isolation transformer to the inverter output.
1. Check that the neutral wire or PGND cable properly connects to the inverter. 2. If the PV string is grounded, check whether the inverter output needs to connect to an isolation transformer. If yes, connect the transformer to the SUN2000.


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