Disconnect A Microinverter - enphase IQ8 Series Installation And Operation Manual

I. Disconnect and re-connect the DC PV module connectors. The status LED of each microinverter will
light solid green for a few seconds after connection to DC power and then flash green six times to
indicate normal start-up operation about two minutes after connecting to DC power. The LED
subsequently resumes normal operation if the grid is present. See page 21 for normal LED operation.
J. Connect a clamp meter (set to DC current mode) to one of the conductors of the DC cables from
the PV module to measure microinverter current. This will be under 1 A if AC is disconnected.
K. Verify the PV module DC voltage is within the allowable range shown in "Specifications". Refer to the
Enphase compatibility calculator at:
au/installers/microinverters/calculator
microinverter.
L. Swap DC leads with a known good, adjacent PV module. If after checking the Enphase Installer
Platform periodically (this may take up to 30 mins), the problem moves to the adjacent module, this
indicates that the PV module is not functioning correctly. If it stays in place, the problem is with the
original microinverter. Contact
and for help in obtaining a replacement microinverter, if needed.
M. Check the DC connections between the microinverter and the PV module. The connection may
need to be tightened or reseated. If the connection is worn or damaged, it may need replacement.
N. Verify with your electricity network operator or with a multi-meter measuring frequency at the point
of supply, that line frequency is within range. If the problem persists, contact customer support at
https:/ /enphase.com/contact/support

Disconnect a microinverter

If problems remain after following the troubleshooting steps listed previously, contact Enphase at
https:/ /enphase.com/contact/support. If Enphase authorizes a replacement, follow the steps below. To
ensure the microinverter is not disconnected from the PV modules under load, follow the disconnection
steps in the order shown:
A. De-energize the AC branch circuit breaker.
B. IQ Cable AC connectors are tool-removable only. To disconnect the microinverter from the IQ
Cable, insert the IQ Disconnect Tool and remove the connector.
C. Cover the PV module with an opaque cover.
D. Using a clamp meter (set to DC mode), verify there is no current flowing in the DC cables between
the PV module and the microinverter. If the current is still flowing, check that you have completed
steps A, B, and C above.
NOTE: Take care when measuring DC current as most clamp meters must be zeroed first as these
tend to drift with time.
E. Disconnect the PV module DC cable connectors from the microinverter using the IQ Disconnect
Tool.
F. If present, loosen and/or remove any bonding hardware.
G. Remove the microinverter from the PV racking.
WARNING: Risk of electric shock. Risk of fire. Do not leave any connectors on the PV system
disconnected for an extended period. If you do not plan to replace the microinverter immediately,
you must cover any unused connector with an IQ Sealing Cap.
23
https:/ /enphase.com/en-
to verify PV module electrical compatibility with the
Enphase customer support
© 2023 Enphase Energy Inc. All rights reserved.
IQ8AC/IQ8HC Installation and Operation Manual
for help in reading the microinverter data
June 2023
USM-00005-2.0