Technical data

Envoy Installation and Operation

Envoy Operation

First Scan for Microinverters

A newly installed Envoy automatically performs an initial scan to discover all of the microinverters that

are installed and powered up at the site. This initial scan continues to search for new microinverters for

eight hours from initial start up of the Envoy. This one-time scan is not repeated automatically. During the

scan, you will notice some values increasing on the Envoy display.

NOTE: If the Envoy was not factory built with software release 3.2, the initial scan will run for

seven days. The initial scan time was reduced from seven days to eight hours with release

3.2. If the Envoy upgrades to release 3.2, after an initial scan has begun, the initial scan

duration will still be seven days.

NOTE: If the eight-hour scan expires before installation of microinverters is complete, a new

scan must be initiated. The steps for initiating a new device scan are described on page 23

of this manual.

WARNING: Stop the scan once all of the devices are detected (see page 12). For sites with

neighbouring Enphase systems, a new device scan should not be allowed to run overnight

because it may discover neighbouring microinverters when they first power-up in the

morning.

The Envoy identifies each device by its unique serial number. If a microinverter is added or replaced at

the site, you must initiate a new scan so that the Envoy can discover the new microinverter. The steps for

initiating a new device scan are described on page 23 of this manual.

After the Envoy has detected at least one new device, it will automatically enter Priority Scan mode. The

LCD screen will display the following, where “nnnn” represents the number of microinverters (devices)

detected.

When the Envoy does not detect a device during a polling interval (usually 5 minutes), it will exit Priority

Scan mode. If, subsequently, the Envoy detects another device, it will return to Priority Scan mode. It will

remain in this mode until it again completes an interval where no new devices are detected.

NOTE: While Priority Scan is active, power production, power line communication level, and

grid profile information screens continue to display on the Envoy LCD screen.

Priority Scan is

Active. Devs: nnnn