Disconnect A Microinverter - enphase IQ7 Installation And Operation Manual

Single-phase service
L1 to N
E. Using an IQ Disconnect Tool, disconnect the AC cable for the microinverter in question from the IQ
Cable.
F. Verify that utility power is present at the microinverter by measuring line to line and line to ground at
the IQ Cable Connector.
G. Visually check that the AC branch circuit connections (IQ Cable and AC connections) are properly
seated. Reseat if necessary. Check also for damage, such as rodent damage.
H. Make sure that any upstream AC disconnects, and the dedicated circuit breakers for each AC branch
circuit, are functioning properly and are closed.
I. Disconnect and re-connect the DC PV module connectors. The status LED of each microinverter will
light solid green a few seconds after connection to DC power and then blink 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 20 for normal LED operation.
J. Attach an ammeter clamp to one conductor of the DC cables from the PV module to measure
microinverter current. This will be under one amp if AC is disconnected.
K. Verify the PV module DC voltage is within the allowable range shown in the
manual.
L. Swap DC leads with a known good, adjacent PV module. If after checking Enphase Installer Portal
periodically (this may take up to 30 minutes), the problem moves to the adjacent module, this
indicates that the PV module isn't 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 utility that the line frequency is within range.
O. If the problem persists, contact customer support at
contact.

Disconnect a microinverter

If problems remain after following the troubleshooting steps listed previously, contact customer support at
https:/ /enphase.com/en-us/support/global-contact.
If Enphase authorizes a replacement, follow the steps. 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. Enphase 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-on meter, verify there is no current flowing in the DC wires between the PV module
and the microinverter. If the current is still flowing, check that you have completed steps one and
two above.
24
IQ7+/IQ7X/IQ7A Microinverters Installation and Operation Manual
Three-phase service
207 to 253 VAC L1 to L2 to L3
L1, L2, L3 to N
Enphase customer support
© 2023 Enphase Energy Inc. All rights reserved.
360 to 440 VAC
207 to 253 VAC (most models)
219 to 264 (IQ7A models)
Specifications
for help in reading the microinverter data
https:/ /enphase.com/en- us/support/global-
in this
August 2023
USM-00003-1.0