EG4 › parallel (CAN) bus
Paralleled inverters fault with Para Phase set error
reported more than once
Symptoms
- Bringing a second inverter online in parallel throws a bus-over-voltage fault until parallel mode is configured on both
- A paralleled fleet updated to new firmware throws 'Para Phase set error' and shuts the system down
- A three-inverter parallel system all fault with 'Para Gen unAccord' the first time the generator runs because it was wired to only the main inverter
- And mismatched, outdated firmware between two paralleled 12000XPs throws an overload fault (code 28) whenever a large load like a pool heat pump starts
Alerts and codes
E019W028Para Phase set errorPara Gen in AccordError 61fault and warning indicator (paralleled inverters not yet synced)
The cause and the fix
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