IQ8 Commercial Microinverter grid-tied PV system
41 © 2023 Enphase Energy Inc. All rights reserved. November 2023
USG-00026-1.0
Step 9: Energize the system
A. Turn ON the AC disconnect or circuit breaker for the branch circuit.
B. Turn ON the main utility-grid AC circuit breaker. Your system will start producing power after a
five-minute wait time.
C. Check the LED on the connector side of the microinverter.
NOTE: Installers may see numerous ACVOOR (AC voltage out of range) events during the
commissioning of IQ8 Commercial Systems if the grid has higher impedance or is operating
in a region with wide voltage or frequency regulation.
Table 17: LED indication for IQ8 Commercial Microinverter
Normal operation. AC grid function is normal and there is communication with the IQ Gateway
FLASHING ORANGE
The AC grid is normal but there is no communication with the IQ Gateway Commercial 2.
The AC grid is either not present or not within specification.
There is an active “DC Resistance Low, Power Off condition”. To reset, refer to the
Commercial PV design guide using the Enphase IQ Microinverter System tech brief.
RAPID RED/FLASHING ORANGE
IQ8 Commercial Microinverter has detected a PV panel that operates outside the arc-safe
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