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F66 on XW multi-unit system

Issue:

Multi-unit XW system shows F66

Environment:

Multi-unit XW system

Resolution:

1. Ensure Xanbus and AC Sync cabling correct
2. Ensure XW Inverters have unique device numbers (00, 01, 02, etc.)
3. Ensure Inverter mode is set correctly (split phase master, slave, etc.)
4. Ensure ALL settings in CONNECTIONS menu of all inverters match exactly. 

Cause:

Cabling or configuration errors
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