enphase Envoy-S Installation and Operation Manual

PDF

Document

INSTALLATION AND OPERATION MANUAL

Enphase Envoy-S

141-00027, Rev 02

Envoy-S Installation and Operation

Contact Information

Enphase Energy Inc.

1420 N. McDowell Blvd.

Petaluma, CA 94954 enphase.com

enphase.com/en-us/support/contact

FCC Compliance

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, you are encouraged to try to correct the interference by one or more of the following measures:

 Reorient or relocate the receiving antenna.

 Increase the separation between the equipment and the receiver.

 Connect the equipment into an outlet on a circuit different from that to which the receiver is

 connected.

Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by the party responsible for compliance may void the user’s authority to operate the equipment.

Other Information

This Class B digital apparatus complies with Industry Canada ICES-003.

For third-party license information, refer to enphase.com/licenses .

For Enphase patent information, refer to enphase.com/company/patents/ .

Product information is subject to change without notice. All trademarks are recognized as the property of their respective owners.

For warranty text, refer to enphase.com/warranty .

User documentation is updated frequently; Check the Enphase website ( enphase.com/support ) for the latest information.

Audience

This manual is intended for use by professional installation and maintenance personnel.

Envoy-S Installation and Operation

SAFETY ................................................................................................................................................. 5

Read this First ........................................................................................................................................ 5

Safety Instructions ................................................................................................................................. 5

The Enphase Envoy-S ........................................................................................................................... 6

How the Enphase Microinverter System Works ................................................................................... 6

Installation Planning and Preparation ................................................................................................ 7

Pre-installation Checks .......................................................................................................................... 8

Select the Envoy-S Type to Install ..................................................................................................................... 8

Plan the Power Connection ............................................................................................................................... 8

Plan the Internet Connection ............................................................................................................................. 8

Download the Installer Toolkit App ................................................................................................................... 8

Metering Considerations ................................................................................................................................... 9

Box Contents ...................................................................................................................................................... 9

Required Items ................................................................................................................................................... 9

Optional Items .................................................................................................................................................... 9

System Metering Options ................................................................................................................................ 10

Create the Map and Install the PV Modules and Microinverters ................................................................... 10

Installation Sequence .......................................................................................................................... 11

Installing the Envoy-S ......................................................................................................................... 12

1. Choose a Location for the Envoy-S ................................................................................................. 13

2. Provide a Power Connection ........................................................................................................... 13

Provide Power for the Envoy-S Standard (ENV-S-AB-120-A) ......................................................................... 13

Provide Power for the Envoy-S Metered (ENV-S-AM1-120) ........................................................................... 15

3. Install CTs for Metering (Model ENV-S-AM1-120 only) ................................................................. 16

Install the CT for Production Metering............................................................................................................ 17

Install CTs for Consumption Metering (Optional) .......................................................................................... 17

Extend Consumption CT Leads, If Needed ..................................................................................................... 18

4. Energize the Envoy-S ....................................................................................................................... 18

5. Detect the Microinverters ................................................................................................................ 19

Method A: Provision Microinverters with Installer Toolkit ............................................................................. 19

Method B: Discover Microinverters with Installer Toolkit .............................................................................. 19

Method C: Discover Microinverters with the Envoy-S .................................................................................... 20

With All Methods .............................................................................................................................................. 20

6. Verify System Configuration ........................................................................................................... 20

7. Connect to Enlighten ....................................................................................................................... 21

Method A: Integrated Wi-Fi .............................................................................................................................. 21

Method B: Enphase Mobile Connect Modem ................................................................................................. 22

Method C: Ethernet Cable ................................................................................................................................ 22

Method D: Power Line Communication Bridges ............................................................................................ 23

If the Internet Connection Fails ....................................................................................................................... 23

8. Send System Summary Report ....................................................................................................... 23

Activate Monitoring ............................................................................................................................ 24

Method A: If the Envoy-S is Associated with a System in Installer Toolkit ................................................... 24

Method B: If the Envoy-S is NOT associated with a System in Installer Toolkit ........................................... 24

View System Performance in Enlighten .......................................................................................................... 24

Envoy-S Operation .............................................................................................................................. 25

Envoy-S Displays and Controls ........................................................................................................... 25

Envoy-S Installation and Operation

Envoy-S LED States .............................................................................................................................. 25

LED Behavior at Initial Start Up ........................................................................................................... 26

Initial Communications Check ........................................................................................................................ 26

More about Device Communications States .................................................................................................. 26

Initiate a New Scan for Microinverters ............................................................................................... 26

Connecting to Envoy-S ....................................................................................................................... 27

Connect Using the Installer Toolkit App ............................................................................................. 27

Method A: Use the Site’s Wireless Router to Connect to the Envoy-S ........................................................... 27

Method B: Create a Wireless Access Point .................................................................................................... 27

Complete the Connection to Envoy-S with Installer Toolkit ........................................................................... 28

Connect Remotely Using Enlighten ..................................................................................................... 30

Connect Using the Envoy-S Local Interface ....................................................................................... 31

View Production Readings .............................................................................................................................. 31

View or Change Monitoring Settings .............................................................................................................. 32

View Microinverter Information....................................................................................................................... 35

View Envoy Information ................................................................................................................................... 35

Open a Connection for Enphase Troubleshooting ......................................................................................... 35

Troubleshooting ................................................................................................................................. 36

Microinverter Detection Issues ........................................................................................................... 36

Issue: Installer Toolkit Shows “Cross Domain Traffic Reported” .................................................................. 36

Issue: Device Communications LED is Solid Amber ...................................................................................... 36

Issue: Installer Toolkit Detects Fewer Microinverters than Expected ........................................................... 36

Issue: No Microinverters are Reporting .......................................................................................................... 37

Issue: Installer Toolkit Indicates that Scanning is Inhibited .......................................................................... 38

Power Production Issues .................................................................................................................... 38

Issue: Power Production LED is solid amber .................................................................................................. 38

Internet Connection Issues ................................................................................................................. 38

Issue: Network Communications LED is Amber or Off .................................................................................. 38

Issue: Wi-Fi Problems ...................................................................................................................................... 39

Issue: Cellular Modem Connection Status “Not Connected” ......................................................................... 39

Issue: Envoy-S is not Connecting with a New Router ..................................................................................... 40

Local Networking Considerations ....................................................................................................... 40

DHCP versus Static IP Addressing.................................................................................................................. 40

MAC Filtering ................................................................................................................................................... 40

Firewall Settings............................................................................................................................................... 40

Microinverter Issues ............................................................................................................................ 41

Clear “DC Resistance Low - Power Off” Condition ......................................................................................... 41

Clear “GFI Tripped” Condition.......................................................................................................................... 42

Replacing an Envoy-S .......................................................................................................................... 44

Replacing an Envoy-S Standard (non-hardwired) ........................................................................................... 44

Replacing a Hardwired Envoy-S ...................................................................................................................... 45

Event Messages ................................................................................................................................... 47

Technical Data .................................................................................................................................... 54

Envoy-S Installation and Operation

SAFETY

Read this First

Follow the instructions in this manual. These instructions are key to the installation and maintenance of the

Enphase Envoy-S Standard™ and the Enphase Envoy-S Metered™.

To ensure the safe installation and operation of the Envoy-S, note the following safety symbols that appear throughout this document to indicate dangerous conditions and important safety instructions.

DANGER:

WARNING:

NOTE:

This indicates a hazardous situation, which if not avoided, will result in death or serious injury.

This indicates a situation where failure to follow instructions may be a safety hazard or cause equipment malfunction. Use extreme caution and follow instructions carefully.

This indicates information that is very important for optimal system operation. Follow instructions closely.

Safety Instructions

DANGER:

Risk of electrocution!

Do not install current transformers (CTs) when current is flowing in the sensed circuit.

Always install CT wires in the terminal blocks before energising the sensed circuit.

DANGER:

Risk of electric shock. Risk of fire.

Do not attempt to repair the Envoy-S; it contains no user-serviceable parts. Tampering with or opening the Envoy-S will void the warranty. If the Envoy-S fails, contact Enphase

Customer Support for assistance at enphase.com/en-us/support/contact . Refer servicing to qualified personnel.

Only qualified personnel should troubleshoot, install, or replace the Envoy-S.

Do not wire unused terminals or terminal blocks on the Envoy-S.

DANGER:

Risk of electric shock.

Do not use Enphase equipment in a manner not specified by the manufacturer. Doing so may cause death or injury to persons, or damage to equipment.

If you wire the Envoy-S at the subpanel, always de-energize the subpanel before beginning wiring.

WARNINGS: Before installing or using the Envoy-S, read all instructions and cautionary markings in the technical description and on the Envoy-S.

NOTES:

Risk of equipment damage. When installing the Envoy-S in an enclosure, choose area for installation where ambient temperature does not exceed 46º C (115º F).

Perform all wiring in accordance with all applicable local electrical codes, with the

Canadian Electrical Code, Part I, and with the National Electrical Code (NEC),

ANSI/NFPA 70.

To ensure optimal reliability and to meet warranty requirements, the Enphase Envoy-S must be installed according to the instructions in this manual.

Envoy-S Installation and Operation

The Enphase Envoy-S

The Enphase Envoy-S is an integral component of the Enphase Home Energy Solution. It operates between the Enphase devices, or other PV system, and the Enphase Enlighten™ web-based monitoring and analysis software. When used with Enphase devices, the Envoy-S can control grid management functions and monitor

PV production and site consumption. When used with non-Enphase PV systems, it can collect production and consumption data, but does not control grid management functions.

How the Enphase Microinverter System Works

The Enphase Microinverter converts the DC output of the PV module into grid-compliant AC power. In addition to performing the DC to AC conversion, it maximizes energy production by using a sophisticated

Maximum Power Point Tracking (MPPT) algorithm. This integrated system maximizes energy harvest, increases system reliability, and simplifies design, installation and management.

The Envoy-S operates as a gateway between the Enphase devices and Enlighten. It collects energy and performance data from the PV system over on-site AC power lines, and it forwards that data to Enlighten, via the Internet, for statistical reporting. Enlighten analyzes the data collected by each Enphase device connected to the Envoy-S. Essential for system monitoring and troubleshooting, Enlighten automatically detects any shortfall in energy production, identifies possible causes, and suggests solutions.

Enlighten provides a wide range of information on system performance. You can access Enlighten on your computer or mobile device and view current performance information at any time.

 The Envoy-S Metered uses precision Current Transformers (CTs) to measure PV production and home energy consumption.

 The Envoy-S Standard offers microinverter PV production monitoring.

Envoy-S Installation and Operation

Installation Planning and Preparation

Installation and operation of the Envoy-S requires no specialized equipment or unique computer or networking expertise. To the Local Area Network (LAN), the Envoy-S is just another host on the network, much like a personal computer. The Envoy-S simply connects to the on-site router or Enphase Mobile

Connect™ (cellular modem) for communications with the Enphase Enlighten monitoring and analysis website. The Envoy-S communicates with the microinverters using the site’s power lines.

After the Envoy-S is installed and the microinverters are scanned or provisioned, it maintains an internal database of all known Enphase Microinverters at the site it manages. At regular intervals, the Envoy-S polls each microinverter for its energy data. Using its Internet connection, the Envoy-S then forwards that information to Enlighten. The Envoy-S also reports any error conditions that affect it or the microinverters.

You can view both energy data and error conditions in Enlighten.

The Envoy-S incorporates power line and Internet communications functions. One "side" of the Envoy-S communicates with the microinverters through power lines at the site. The other "side" of the Envoy-S communicates with Enlighten over the Internet.

Enlighten

Microinverters

Load Center

Envoy-S

POWER LINE

COMMUNICATIONS

Router

NETWORK

COMMUNICATIONS

To Internet

Envoy-S Installation and Operation

Pre-installation Checks

Review the following pre-installation checks before you install the Envoy-S.

Select the Envoy-S Type to Install

 The Envoy-S Metered uses precision Current Transformers (CTs) to measure PV production

(accuracy 2.5%) from the solar main supply switch and home energy consumption from the AC mains.

 The Envoy-S Standard offers microinverter PV production monitoring (accuracy +/- 5%).

Plan the Power Connection

If installing the Envoy-S Standard, decide whether to power the Envoy-S using the included AC power cord or by hardwiring the Envoy-S in a NRTL certified, NEMA type 3R (or better) enclosure. Use an appropriately rated enclosure if hard-wiring indoors. Make sure that the site has either a standard AC outlet available near the AC load center in which the Envoy-S can be hardwired. Do not use a power strip. If you use the power cord in an enclosure, the socket must be appropriately rated.

Plan the Internet Connection

Additional requirements to use the Enlighten web-based monitoring and analysis software are:

 Internet connection for the Envoy-S through a traditional router or modem or Enphase Mobile

Connect (Enphase model CELLMODEM-01). Decide whether to connect the Envoy-S to the

Internet using integrated Wi-Fi, an Enphase Mobile Connect modem, or using a PLC bridge with

Ethernet cables.

 One of the following Web browsers with cookies enabled: Chrome 44 or higher, Firefox 41 or higher, Internet Explorer 11, Microsoft Edge for Windows, Safari 8 or higher.

Download the Installer Toolkit App

The Enphase Installer Toolkit is a mobile app for iOS and Android devices that allows installers to configure the system while onsite, eliminating the need for a laptop and improving installation efficiency.

 Download the Enphase Installer Toolkit mobile app and open it to log in to your Enlighten account. With this app, you can connect to the Envoy to track system installation progress. To download, go to enphase.com/installer-toolkit or scan the QR code:

 To run the Installer Toolkit app, you need either of the following mobile devices:

 An Android mobile device running Android version 5 (Lollipop) or later, or

 An iOS device running iOS 8 or later.

Enphase Installer

Toolkit mobile app

Envoy-S Installation and Operation

Metering Considerations

The Envoy-S Metered includes a production CT and you may order two consumption CTs for consumption monitoring. When installing CTs:

 Do not install the CTs in a panel where they exceed 75% of the wiring space of any crosssectional area within the panel, or refer to local standards for guidance.

To install the production CT

 Ensure there is sufficient room to install the production CT around line 1 of the solar PV disconnect.

To install consumption CTs (order CT-200-SPLIT separately)

 For net consumption metering, ensure there is sufficient room to install both CTs around lines 1 and 2 from the main feeds.

 For total consumption metering, ensure there is sufficient room to install the CTs around the lines that feed the consumption circuit.

Box Contents

Check the shipping box for the following items:

 Enphase Envoy-S

 AC power cord (included with ENV-S-AB-120-A)

 Production metering CT (included with ENV-S-AM1-120)

 Length of DIN rail for mounting

 Ferrite bead to attach to your Ethernet Cable, if used

 Enphase Envoy-S Quick Install Guide

Required Items

If you hard-wire the Envoy-S, you must install it in a NRTL certified NEMA type 3R (or better) enclosure with

conduit attachment. Note that Metallic enclosures may impair Wi-Fi signal strength. Do not drill holes for conduit at the top of the enclosure or anywhere that allows moisture ingress.

Optional Items

Make sure you have the following optional items, if needed:

 Two consumption metering split-core CTs (order two CTs: Enphase CT-200-SPLIT)

 Enphase Mobile Connect modem (order Enphase CELLMODEM-01)

 Ethernet over power line communication (PLC) bridge with Ethernet cables (order Enphase

EPLC-01)

 Ethernet cable (use only 802.3, unshielded Cat5E or CAT 6). Do not use shielded twisted pair

(STP) cable.

Envoy-S Installation and Operation

System Metering Options

The Envoy-S monitors up to 600 Enphase Microinverters and up to 39 Enphase AC Batteries. The Envoy-S is available with standard or revenue-grade metering options. Check that the model number is correct for your installation.

Envoy-S name and model number (SKU)

Metering / reporting Includes AC power cord or CT

Envoy-S Standard

ENV-S-AB-120-A

(white case)

Standard PV production monitoring (+/- 5%). AC power cord

Envoy-S Metered

ENV-S-AM1-120

(black case)

Integrated revenue grade PV production metering

(ANSI C12.20 +/- 0.5%) and optional consumption monitoring (+/- 2.5%).

 Revenue-grade production metering

 Optional consumption metering (requires additional CTs, order CT-200-SPLIT)

Production CT

NOTE: To install multiple Envoys at a single site, see our technical brief on commercial design at enphase.com/support .

Create the Map and Install the PV Modules and Microinverters

Create the map and install the PV modules and microinverters. You will scan this map later using Installer

Toolkit and your mobile device. (See “Method A: Provision Microinverters with Installer Toolkit” on page 19.

NOTE: If needed, you can find an installation map at the back of any Enphase Microinverter manual.

 Create a paper installation map to record microinverter serial numbers and positions in the array.

Peel the removable serial number label from each microinverter and affix it to the respective location on the installation map.

 Peel the removable label from the bottom of the Envoy-S and affix it to the installation map.

 Always keep a copy of the installation map for your records.

Envoy-S Installation and Operation

Installation Sequence

1. Choose a location for the Envoy-S

2. Provide a power connection

3. Install CTs, if needed

4. Energize the Envoy-S

5. Detect microinverters

6. Verify system configuration

7. Connect to Enlighten

8. Send summary report

Envoy-S Installation and Operation

Installing the Envoy-S

To install the Envoy-S, perform the following steps and refer to these diagrams:

Envoy-S Standard (model number ENV-S-AB-120-A)

LEDs and buttons

AC inlet

Ethernet port

Envoy-S Metered (model number ENV-S-AM1-120)

USB ports

Terminal block

Ethernet port

LEDs and buttons

USB ports

Envoy-S Installation and Operation

1. Choose a Location for the Envoy-S

a. Install the Envoy-S at the subpanel or as close to the load center or Point of Common Coupling (PCC) as possible. This ensures that the Envoy-S receives the strongest possible communications signal from each microinverter.

b. Install the Envoy-S in a protected dry space (such as a garage, attic, basement, or other cool, dry location). If the Envoy-S is hard-wired, you must also install it inside a NRTL certified NEMA type 3R

(or better) enclosure with conduit attachment. Use an appropriately rated enclosure if hard-wiring indoors.

NOTE: Metallic enclosures may impair Wi-Fi signal strength.

c. Mount the Envoy horizontally using the included DIN rail.

WARNING: Risk of equipment damage. When installing the Envoy-S in an enclosure, choose area for installation where ambient temperature does not exceed 46º C (115º F).

d. To wall-mount, use two #8 screws and a screwdriver. Mount the DIN rail first, then clip the Envoy-S to the DIN rail.

2. Provide a Power Connection

The Envoy-S is available in two configurations.

 The Envoy-S Standard (ENV-S-AB-120-A) includes an AC power cord.

 The Envoy-S Metered (ENV-S-AM1-120) must be hard-wired (does not include an AC power cord)

The following sections provide separate instructions for the two configurations.

Provide Power for the Envoy-S Standard (ENV-S-AB-120-A)

Use one of the following methods to provide power to the Envoy-S Standard (ENV-S-AB-120-A).

Method A: Plug the Envoy into a 120 VAC Outlet

The Envoy-S Standard (ENV-S-AB-120-A) includes an AC power cord.

WARNING: If the included power cord is missing or lost, you must use a UL listed junior hard service max three-foot cord with a NEMA configuration 1-15P plug, rated for a minimum of 125

VAC with a type IEC 60320-C7 connector.

a. Locate an AC outlet that is near the load center or PCC. If located outdoors, the outlet must be appropriately rated.

b. Plug the AC power cord into the AC inlet on the Envoy-S.

c. Plug the other end of the power cord into a dedicated 120

VAC outlet (not a power strip).

WARNING! Do not plug the Envoy-S into a power strip, surge protector, or uninterruptable power supply (UPS).

AC inlet

Shutter

The surge suppression or filtering in these devices impedes power line communication performance. Also, if possible, do not plug a power strip into the same outlet that the Envoy-S is using. The surge suppression or filtering components of a power strip may still interfere with communications if they are near the Envoy-S.

Envoy-S Installation and Operation

Method B: Wire in an Enclosure

Though the Envoy-S Standard (ENV-S-AB-120-A) includes an AC power cord, you may hard-wire it instead.

When you hard-wire the Envoy-S, you must install it in a NRTL certified NEMA type 3R-rated (or better) enclosure with conduit attachment.

a. Use a 15 A maximum circuit breaker for the supply wiring.

b. Make sure supply wiring is 14 AWG copper rated at 75° C.

c. Locate the screw on the left side of the terminal block door, and loosen it with a screwdriver to unlock the door.

d. Open the terminal block door and move the shutter to the left. Wire the line and neutral conductors as shown in the diagram. Tighten terminal block screws to 5 in-lbs (0.56 Nm).

- Connect Line 1 to A

- Connect Neutral to N

Envoy-S Installation and Operation

Provide Power for the Envoy-S Metered (ENV-S-AM1-120)

The Envoy-S Metered (ENV-S-AM1-120) uses terminal blocks for power connections. It does not include an

AC power cord, and you must hard-wire it. When you hard-wire the Envoy-S, you must install it in a ventilated,

NRTL certified NEMA type 3R-rated (or better) enclosure with conduit attachment.

a. Use a 15 A maximum circuit breaker for the supply wiring.

b. Make sure supply wiring is 14 AWG copper rated at 75° C or better.

c. Locate the screw on the left side of the terminal block door, and loosen it with a screwdriver to unlock the door.

d. Flip open the terminal block door and wire the line and neutral conductors as shown in the diagram.

- Connect Line 1 to A

- Connect Line 2 to B

- Connect Neutral to N

e. Tighten all connections to 5 in-lbs (0.56 Nm).

Envoy-S Installation and Operation

3. Install CTs for Metering (Model ENV-S-AM1-120 only)

The Envoy-S Metered (ENV-S-AM1-120) uses terminal blocks for metering connections. It includes UL listed energy-monitoring CTs to provide revenue grade production metering and to provide (optional) consumption metering. When wiring the Envoy-S for production and consumption metering, be sure to install the current transformers (CTs) exactly as described for your application. You must use a protected route in conduit for

the CT wires from the AC mains to the Envoy-S. If you need to extend the leads, see “Extend Consumption CT

Leads, If Needed” on page 18.

DANGER! Risk of electrocution! CTs must be installed with no current flowing in the sensed circuit. Always install CT wires in the terminal blocks before energizing the sensed circuit.

DANGER! Risk of electric shock. Be aware that installation of this equipment includes risk of electric shock. If you wire the Envoy-S at the subpanel, always de-energize the main load center before beginning wiring. If the subpanel cannot be de-energized, a qualified electrician may safely install the CTs as directed, making sure to connect the leads and then place the CTs around each wire and latch.

WARNING! Do not install the CTs in a panel where they exceed 75% of the wiring space of any cross-sectional area within the panel.

NOTES:

When wiring the Envoy-S for production and consumption metering, be sure to install the current transformers (CTs) exactly as described for your application.

When using CTs, do not energize the Envoy-S or the microinverters before the

CT installation is complete.

Do not install the CTs in a panel where they exceed 75% of the wiring space of any cross-sectional area within the panel, or refer to local standards for guidance.

Only run active conductors through the CT. The CT can monitor multiple active conductors. You may run more than one wire through the CT if all wires are on the same phase and they fit the opening in the CT.

Use the following diagram as a reference while installing the CTs:

Envoy-S Installation and Operation

Install the CT for Production Metering

Use only the CT that came with the Envoy-S. It has the same serial number as the Envoy-S.

a. Locate the arrow on the CT label.

b. Connect the white wire to the “IA•” terminal.

c. Connect the blue wire to the “IB•” terminal.

d. Tighten the terminal block screws to 5 in-lbs (0.56 Nm).

e. Clamp the CT on Line 1 (matching Envoy’s “A” voltage terminal) of the solar production circuit with the arrow pointing toward the load (away from the solar array).

Install CTs for Consumption Metering (Optional)

Install two split-core CTs (order two CT-200-SPLIT) to provide consumption metering. Create a protected route with conduit for the CT wires to the Envoy-S.

a. Make sure that the main load center wires are de-energized until you have secured the CT wires in the terminal blocks. Before running the CT wires through the conduit, use colored tape to mark one of the CTs and the free end of its wires.  

b. For the marked CT wires, connect the white wire to “IA•” and the blue wire to “IA”.

c. For the unmarked CT wires, connect the white wire to “IB•” and the blue wire to “IB”.  

d. Tighten the terminal block screws to 5 in-lbs (0.56 Nm).

e. Clamp the marked CT on the load center feed wire Line 1 (matching the Envoy’s “A” voltage terminal) with the CT arrow pointing toward the load (away from the grid). Unlatch the CT and place Line 1 in through the opening. Latch the CT and listen for the click as it closes.

f. Clamp the unmarked CT on the load center feed wire Line 2 (matching the Envoy’s “B” voltage terminal) with the CT arrow pointing toward the load (away from the grid). Unlatch the CT and place

Line 2 in through the opening. Latch the CT and listen for the click as it closes.

Envoy-S Installation and Operation

Extend Consumption CT Leads, If Needed

If needed, an electrician may extend the leads of the consumption CTs using the following guidance:

WARNING! To extend the CT leads, the electrician must use appropriately rated, 18-14 AWG, twisted pair wire and install it in accordance with all applicable local electrical codes and the

National Electrical Code (NEC; NFPA 70).

The electrician may add as much as three ohms round trip resistance to the consumption CT or up to 1.5 ohms per wire. For reference, using NEC chapter 9 table 8 resistances, the following maximum lengths at 75°

C by gauge are:

 57.6 meters (189 feet) of 18AWG 7 strand Cu = 1.5 ohms

 91.7 meters (301 feet) of 16AWG 7 strand Cu = 1.5 ohms

 148.4 meters (478 feet) of 14AWG 7 strand Cu = 1.5 ohms

NOTE: In the NEC standard, chapter 9 table 8 resistance figures may not be appropriate for all geographies or installation conditions. A licensed electrician should determine the wire gauge and type to obtain a maximum round trip resistance of three ohms.

Select wire that is Code type, NRTL certified, and rated for voltage and temperature for the specific application. Mechanically protect the wires in a Code type, NRTL certified conduit or raceway. Use NRTL certified connectors for splices and insulated splices from one another and from the raceway, conduit, or junction box, if metallic.

Buried wires must be NRTL certified for direct burial and follow the Code for installation. Do not bury splices unless in a NRTL certified junction box rated for the application, and use an NRTL certified moisture resistant connection method.

4. Energize the Envoy-S

a. Close the terminal block door, and secure it with the screw.

b. Turn on the circuit feeding the Envoy-S.

c. All four LEDs flash amber during boot up. This typically takes 2 to 3 minutes. When boot up is complete, the Device Communications LED flashes amber indicating that microinverters are not yet detected.

Envoy-S Installation and Operation

5. Detect the Microinverters

Use one of the following methods to detect microinverters.

Method A: Provision Microinverters with Installer Toolkit

Use the Installer Toolkit mobile app to configure the Envoy-S with the serial numbers of the installed microinverters.

a. Launch Installer Toolkit and tap View Systems.

b. Select the system you are working with, or tap [+] to add a system.

c. Connect to the Envoy-S with your mobile device as described in the side note.

d. Return to Installer Toolkit. If the serial number for the Envoy-S you are installing is not displayed on the System Overview screen, tap the [+] next to the word Envoys. When the app displays the serial number of the Envoy-S, tap it to add it to the system.

e. Following the on-screen instructions, use the Installer Toolkit app to create the arrays and scan the serial numbers from the installation map.

The Device Communications LED lights solid green when all of the provisioned devices are communicating or solid amber if any devices are not communicating.

Method B: Discover Microinverters with Installer Toolkit

Tap the Connect button. This provisions the scanned microinverters on the Envoy-S.

When prompted, confirm the number of microinverters that you installed.

If your system is in Hawaii or in another region that does not use the Factory-Installed Grid Profile, select and apply a grid profile to the microinverters.

Use the Installer Toolkit mobile app to set the number of microinverters the Envoy-S should search for on the power line.

Connecting to Envoy-S with a

Mobile Device:

The Envoy’s AP (Access Point)

Wi-Fi network allows you to connect your mobile device to the Envoy-S. The AP Mode LED lights solid green when the network is available.

 On the Envoy-S, if the AP



Mode LED is not lit, press the AP Mode button.

On your mobile device, go to Settings and join the Wi-

Fi network “Envoy_nnnnnn”

(where “nnnnnn” represents the final six digits of the

Envoy serial number).

b. Connect to the Envoy-S with your mobile device as described in the side note.

c. Launch Installer Toolkit and tap Connect to an Envoy.

d. When prompted, enter the number of microinverters that you installed.

e. If your system is in Hawaii or in another region that does not use the Factory-Installed Grid Profile, select and apply a grid profile to the microinverters.

f. When prompted to start a device scan, tap OK.

The Device Communications LED flashes green while scanning. It lights solid green when all of the microinverters you installed are communicating or solid amber if any devices are not communicating.

Envoy-S Installation and Operation

Method C: Discover Microinverters with the Envoy-S

If you are not using the Installer Toolkit app, press the Device Scan button on the Envoy-S. With this method, the Envoy searches the power line for 15 minutes, but does not know how many microinverters it should discover.

The Device Communications LED flashes green for 15 minutes while scanning. At the end of the scan, it lights solid green if at least one microinverter was discovered or solid amber if no microinverters were discovered (or if any discovered microinverter stops communicating).

With All Methods

If the Device Communications LED remains solid, see

“Microinverter Detection Issues” on page 36.

6. Verify System Configuration

While still connected to Envoy-S with Installer Toolkit, check the Overview screen for the following:

WARNING! If using consumption metering, be sure to set the meter type correctly. You cannot change this setting once the meter is enabled.

a. Confirm that the expected number of devices are discovered and communicating.

b. On the Overview screen, check that the grid profile is set on all the microinverters. This may take up to 5 minutes.

c. Set up metering for the Envoy-S Metered (model ENV-S-AM1-120 only):

d. Tap the Meters button. If there is a check next to Production Meter, the production meter is enabled. If a gear is shown, you must enable the meter:

e. Tap Production Meter, and follow the on-screen instructions to enable the Production Meter.

f. If you installed a consumption metering CT, tap Consumption

Meter

to enable the meter and follow the on-screen instructions to enable the Consumption Meter.

g. Based on where you installed the consumption CT, indicate whether the circuit that passes through the consumption CT includes:

 Load with solar production (also known as net) or

 Load only (also known as total or gross), for example, in the case of a line-side tap.

If you used Installer Toolkit to detect microinverters, the Power Production LED lights solid green when all expected microinverters are producing power. If you did not use Installer Toolkit, it lights solid green if all communicating microinverters are producing power. It flashes green when microinverters are upgrading.

Check Installer Toolkit for production status details. If the Power Production LED remains solid amber, see

“Issue: Installer Toolkit Indicates that Scanning is Inhibited” on page 38.

Envoy-S Installation and Operation

7. Connect to Enlighten

The Envoy-S requires a connection to the Internet for reporting to Enlighten. You can provide this connection through an existing broadband router, other Wi-Fi access point at the installation site, or by using the

Enphase Mobile Connect cellular modem.

WARNING! Risk of Equipment Damage. Do not remove power from the Envoy-S if the LEDs are flashing green. This indicates that a software update is in progress.

Connect to a broadband router using one of these methods, described in the following sections:

 Method A: Integrated Wi-Fi

 Method B: Enphase Mobile Connect (order CELLMODEM-01 separately)

 Method C: Ethernet cable (not included, installer must provide). This method requires that you use the ferrite bead included with the Envoy-S.

 Method D: Power Line Communication Bridges (order EPLC-01 separately). This method requires that you use the ferrite bead included with the Envoy-S.

Method A: Integrated Wi-Fi

The Envoy-S integrated Wi-Fi operates at both 2.4GHz and 5GHz and supports several wireless security protocols in addition to Wi-Fi WPS. These include WEP Open

System, WEP Shared Key, WPA-PSK, WPA2-PSK, WPA-EAP, and WPA2-EAP. To use the Enphase integrated Wi-Fi, you need a wireless router.

a. On the Envoy-S, verify that no Ethernet cable is plugged into the RJ45 port.

b. If your router supports WPS, press and hold the WPS button on the wireless router for a few seconds. On most routers, a WPS LED begins flashing.

c. If you are using the Installer Toolkit mobile app, tap the Network button, tap Wi-Fi, and find and select your network. If the wireless router does not support WPS, you may be prompted to enter a password.

If you are not using the Installer Toolkit mobile app, you can only connect using WPS. Initiate a WPS connection by pressing and holding the AP Mode button for 5 seconds.

The Network Communications LED begins flashing green. Within three minutes the Network

Communications LED lights solid green, indicating a successful connection to the Internet and to

Enlighten. If the Network Communications LED

remains off or lights solid amber, see “Internet

Connection Issues” on page 38.

Envoy-S Installation and Operation

Method B: Enphase Mobile Connect Modem

Order CELLMODEM-01 separately.

To install Enphase Mobile Connect:

a. Connect the antenna to the antenna connector (marked CELL) on the modem.

b. Mount the modem as described in the Enphase Mobile Connect

Installation Guide.

c. Connect the micro-USB cable to the modem and connect the other end of the cable to the Envoy-S. If receiving power from the Envoy-S, the modem power LED lights up.

Within three minutes the Envoy-S Network Communications LED lights solid green, indicating a successful connection to the Internet and to Enlighten.

NOTE: With Mobile Connect, the Envoy initially reports to Enlighten every five minutes for 12 hours or until the Envoy-S detects the expected number of microinverters, which is based on the number entered in Total Number of PV Modules in Enlighten. After that, the Envoy uses low bandwidth reporting mode. Low bandwidth mode reports 15-minute interval readings and event data to Enlighten four times a day rather than every 15 minutes as with other connection methods.

Method C: Ethernet Cable

To use this method, you need an Ethernet cable and a broadband router. The Enphase Envoy-S comes packaged with a ferrite bead. You must attach this ferrite bead to your Ethernet cable to ensure there is no communication interference between the Envoy-S and other devices. To install the cable and ferrite bead:

a. Select a Cat5E or Cat6 Ethernet cable unshielded twisted pair (UTP). Do not use shielded twisted pair

(STP) cable.

b. Place the bead on the new cable, near one end, and close the latch.

c. Plug the cable end with the ferrite bead into the Envoy-S Ethernet port.

d. Secure a tie wrap on the cable on each side of the ferrite bead.

e. Tighten an additional tie wrap around the ferrite bead.

f. Trim any tie wrap excess.

g. Plug the other end of the Ethernet cable into the network.

Within two minutes the Network Communications LED lights solid green, indicating a successful connection to the Internet and to Enlighten.

When you use an Ethernet cable to connect to the LAN, two small LEDs on the Ethernet port indicate Ethernet link and activity. When the cable is connected correctly, the link LED lights solid green and the activity LED flashes green or yellow when data is sent or received.

Envoy-S Installation and Operation

Method D: Power Line Communication Bridges

Order EPLC-01 separately.

If you need to locate the Envoy-S away from the router, at a distance where an Ethernet cable is not practical or the wireless signal does not reach, use power line communication bridges with the Envoy-S. Bridges allow the Envoy-S to communicate with the broadband router over the site’s power lines.

To install power line communication bridges:

a. Plug one of the bridges into the same AC outlet as the Envoy-S.

b. Place the bead on the cable, near one end, and close the latch.

c. Plug the cable end with the ferrite bead into the Envoy-S Ethernet port.

d. Secure a tie wrap on the cable on each side of the ferrite bead.

e. Tighten an additional tie wrap around the ferrite bead.

f. Trim any tie wrap excess.

g. Plug the other end of the Ethernet cable into the bridge.

h. Plug the other bridge into an AC outlet near the broadband router.

i. Connect one end of a second Ethernet cable to the second bridge, and connect the other end of the

Ethernet cable to the broadband router.

Within two minutes the Network Communications LED lights solid green, indicating a successful connection to the Internet and to Enlighten.

If the Internet Connection Fails

If the Envoy-S does not connect to the Internet within five to ten minutes after using any of these connection

methods, see “Internet Connection Issues” on page 38.

8. Send System Summary Report

When you have completed your system setup, you can generate and email a summary report.

a. From Installer Toolkit, tap Done in the upper-right corner of the screen to disconnect from the Envoy.

Installer Toolkit will ask if you want to view a summary report.

b. Tap View Report. The report displays Envoy and system information with a list of microinverter serial numbers, their last power reports, and information about the grid profile applied to the microinverters.

c. Tap to email the report to your office as a record of successful system installation or to the utility for evidence of grid profile settings.

NOTE: If your mobile device is connected to the Envoy using AP mode, the email stays in the email app’s outbox to be sent when the mobile device reconnects to the Internet. To disconnect from the Envoy network, go to Settings on your mobile device and disconnect from the Envoy-S

Wi-Fi network “Envoy_nnnnnn” (where “nnnnnn” represents the final six digits of the Envoy serial number).

NOTE: If you connect to an Envoy after associating it to a system, the report includes a system name and address.

Envoy-S Installation and Operation

Activate Monitoring

Once you have registered the system and successfully installed the Envoy-S, Enlighten generates an account for the site owner. When you complete the registration and installation, Enphase sends account information to the site owner allowing them to log in to the Enlighten website and view system performance.

Method A: If the Envoy-S is Associated with a System in Installer Toolkit

a. On your mobile device, go to your Wi-Fi settings and disconnect from the Envoy’s AP network. This should restore Internet connectivity to your device.

b. Return to the Installer Toolkit app and tap the Sync button on the System Overview screen.

c. Log in to Enlighten and click on the system activation’s name from the installer dashboard.

d. From the activation form, open Array Builder. To see the Array Builder demo, go to enphase.com/support/videos .

 If you used Installer Toolkit to build arrays and scan microinverter serial numbers, the array(s) are built. Make any necessary adjustments in

Array Builder.

 If you did NOT use Installer Toolkit to build arrays and scan microinverter serial numbers, create the virtual array in Array Builder using the installation map as your reference. (You may need to wait if the microinverters have not yet reported to Enlighten.)

Method B: If the Envoy-S is NOT associated with a System in Installer Toolkit

a. Log into Enlighten and click Add a New System from the installer dashboard.

b. Enter the System, Installer, Owner, and Location information.

c. Enter the Envoy serial number.

d. Click Save to submit the form.

e. After the microinverters have reported to

Enlighten, open Array Builder from the activation form, and create the virtual array, using the installation map as your reference.

To see the Array Builder demo, go to enphase.com/support/videos .

View System Performance in Enlighten

Once the array is built and the system is activated, you can log in to Enlighten to view site data. Enlighten displays a graphic representation of the PV system. It also shows detailed current and historical performance information.

Envoy-S Installation and Operation

Envoy-S Operation

Envoy-S Displays and Controls

You can track system installation progress with the Enphase Installer Toolkit mobile app.

The LEDs on the Envoy-S are solid green when a function is enabled or performing as expected, flashing when an operation is in progress, or solid amber when troubleshooting with Installer Toolkit is required.

— Network Communications LED: Green when Envoy-S is connected to Enlighten.

— AP Mode LED: Green when Envoy’s AP Wi-Fi network is available.

— AP Mode Button: Press to enable Envoy’s AP Mode for connecting with a mobile device. Hold for 5 seconds to start WPS connection to a router.

— Power Production LED: Green when microinverters are producing power.

— Device Communications LED: Green when microinverters are communicating with

Envoy-S.

— Device Scan Button: Press to start/stop a 15-minute scan for microinverters over the power line.

Envoy-S LED States

LED

All

Network

Communications

AP mode

Power production

Device

Communications

State Description

Flashing amber in unison The Envoy-S is booting up

Flashing green sequentially Software update in progress

Solid green

Flashing green

Solid amber

Off

Solid green

Off

Communicating with Enlighten

WPS connection in progress or the Envoy-S is attempting to connect to Enlighten

Local network connection only

No network connection

AP mode enabled:

Envoy Wi-Fi network available

AP mode disabled:

Envoy Wi-Fi network unavailable

Solid green

Flashing green

Solid Amber

Off

Solid Green

Flashing Green

Solid Amber

Off

All communicating microinverters are producing

Microinverter update in progress

At least one microinverter is not producing

Microinverters are not communicating

(low light or night time)

All microinverters are communicating

Device scan in progress

At least one microinverter is not communicating

Microinverters are not communicating

(low light or night time)

Envoy-S Installation and Operation

LED Behavior at Initial Start Up

When the Envoy-S starts up for the first time, it goes through the initial boot sequence. During this initial boot sequence, all the Envoy-S LEDs flash amber. Soon after connecting to the Internet, the Envoy-S may retrieve a software update, and the LEDs flash green sequentially during the update.

WARNING! Risk of Equipment Damage. Do not remove power from the Envoy-S if the LEDs are flashing green sequentially. This indicates that a software update is in progress.

Initial Communications Check

The Envoy-S normally indicates no Internet connection for two to three minutes after the first start up. It then sends the first report to Enlighten. When Enlighten responds, the Network Communications LED lights solid green, indicating an Internet connection to Enlighten.

More about Device Communications States

A detected device (microinverter or battery) is one that has been discovered via the Envoy’s device scan or provisioned via Installer Toolkit or Enlighten.

The states of the Device Communications LED have slightly different meanings, depending on whether the installer has provided an expected number of microinverters. If you have NOT provided the expected number of microinverters either through the Activation form or in Installer Toolkit, the LED displays as described in the No expected number provided column. If you have provided the expected number of microinverters in the Activation form or in Installer Toolkit, this LED displays as described in the Expected

number provided column. If the Envoy has been provisioned with the serial numbers of the microinverters, this displays as described in the With provisioning column.

State No expected number provided

Expected number provided With provisioning

Solid Green



All discovered devices are communicating.

The expected number of devices was discovered and all are communicating.

All of the provisioned devices are communicating.

Solid Amber



At least one of the discovered devices is not communicating.

The number of devices communicating is not equal to the number expected (e.g., 0/12, 1/12,

11/12, or 13/12).

The devices that are communicating are not the same as those provisioned.

Initiate a New Scan for Microinverters

The Envoy-S identifies each device by its unique serial number. If you add more microinverters to an existing system or replace a microinverter or the Envoy-S, you can run a scan to detect the new devices. To initiate a scan after you add new microinverters to an existing Enphase system, perform the following steps.

Press the Device Scan button. The Envoy-S begins a 15-minute scan to identify all of the microinverters deployed at the site. The Device Communications LED flashes green during the scan. Alternatively, you can initiate a scan using Installer Toolkit.

Log into Enlighten to check for the new microinverter, and use Array Builder to add the new microinverter to the virtual array.

After the microinverter is detected, it is best to disable the scan. To do this, press the Envoy-S

Device Scan button again.

Envoy-S Installation and Operation

Connecting to Envoy-S

There are several ways to connect with the Envoy-S to check status or do configuration tasks:

 Connect wirelessly using Installer Toolkit

 Connect remotely using Enlighten

 Connect using a computer or mobile device with the Envoy-S local interface

Connect Using the Installer Toolkit App

The Enphase Installer Toolkit is a mobile app that provides installers with onsite system configuration capabilities.

Options for establishing a connection between the Installer Toolkit app and the Envoy-S are:

 Connect the mobile device to the same LAN as the Envoy-S using the site’s wireless router.

 Use the Envoy-S to create a wireless Access Point (AP).

Method A: Use the Site’s Wireless Router to Connect to the Envoy-S

To use the site’s wireless router, select Settings on your mobile device and then select Wi-Fi. Tap the network you want to join from the list of available networks.

Method B: Create a Wireless Access Point

You can connect to the Envoy-S without using the onsite router by creating a wireless Access Point (AP). Use the built-in Wi-Fi functionality to do this. AP mode supports use of a mobile device and times out after eight hours. The AP Mode LED lights solid green when AP mode is active. AP Mode allows you to connect the

Envoy-S to Installer Toolkit so that you can track system installation progress.

To start an AP session:

Briefly press the AP Mode button to start an 8-hour AP session on the Envoy-S. The AP Mode

LED lights solid green when AP mode is active.

AP Mode LED

AP Mode button

Envoy-S Installation and Operation

The AP Mode LED remains solid green when AP mode is enabled and active. AP mode times out after eight hours. This LED is usually off during normal Envoy-S operation.

Select Settings on your mobile device and then select Wi-Fi. Tap “ENVOY_nnnnnn” (where “nnnnnn” represents the final six digits of the Envoy serial number) from the list of available networks.

Complete the Connection to Envoy-S with Installer Toolkit

Once your mobile device and the Envoy are on the same LAN, you can connect to the Envoy-S.

Tap anywhere on the row containing the Envoy serial number or tap Connect at the bottom of the

System Overview screen.

Envoy-S Installation and Operation

If you used the Installer Toolkit scanning tool to scan microinverters, this screen displays the names of the arrays and the number of microinverters associated with each array. Tap Connect to Envoy.

The Installer Toolkit automatically attempts to connect to the Envoy.

NOTE: If you used the Installer Toolkit scanning tool, the scanned microinverters are provisioned on the Envoy when you tap Connect to Envoy. This action also stops the device scan on the Envoy-S, if one is in progress.

Refer to enphase.com/installer-toolkit/ for more information on the Enphase Installer Toolkit.

Envoy-S Installation and Operation

Connect Remotely Using Enlighten

To check status of Enphase equipment, do the following:

Log on to Enlighten to view the array. Click Devices.

A list of equipment appears including the Envoy(s) and all of the microinverters that the Envoy has detected. The column on the far right lists the status of each microinverter.

To view status information for the Envoy, click the Envoy serial number.

This screen indicates status for web communication, power line communication and microinverter count.

Check the report setting. The Envoy sends regular reports to Enlighten over the Internet connection.

The default reporting mode for the Envoy-S is Standard (high-bandwidth). If the site uses the

Enphase Mobile Connect modem, this setting is locked to Low-Bandwidth. Low bandwidth mode reports 15-minute interval readings and event data to Enlighten four times a day. Standard reporting sends five-minute interval data to Enlighten every five minutes during daylight hours. The Enlighten view is refreshed every 15 minutes.

From here you can choose to Check Signal Strength or Rescan for Devices as needed. When checking signal strength, allow up to 15 minutes for a response.

If the text to the right of the Update Software indicates that the Envoy-S requires an update, click

Update Software and follow the prompts.

The Envoy-S relays data to Enlighten using an Internet connection. However, even if there is no active Internet connection, you can communicate directly with the Envoy-S using the Ethernet port and a personal computer or mobile device with a web browser. Options for connecting to the Envoy local interface are:

Envoy-S Installation and Operation

Connect Using the Envoy-S Local Interface

With your computer or mobile device connected to the same LAN (local area network) as the Envoy-S, you can access the Envoy-S interface.

Use the Envoy’s built-in Wi-Fi or connect an Ethernet cable between a computer and the Envoy-S.

Open an Internet browser application on a computer or mobile device connected to the same LAN as the Envoy-S.

In the browser address window, enter http://envoy.local to view system details and status. (When there is no broadband router in the network, connect a laptop directly to the Envoy-S Ethernet port using an Ethernet cable and browse to 169.254.120.)

If there are additional Envoy-S units on the network, you can access them by entering the following strings in the browser window:

 http://envoy-2.local

 http://envoy-3.local, and so on

Once the browser has successfully connected with the Envoy-S, the home screen is displayed in the browser window.

View Production Readings

The production readings at the top of the pane show current and lifetime production values. The first value shows today’s production, while the second shows the total production for the lifetime of the system.

 If your system uses an Envoy-S, Metered gateway, it displays production meter readings. You can also view production as reported by the microinverters by selecting the arrow to the left of the words Microinverter Production.

 If your system uses an Envoy-S, Standard gateway, the system displays production values reported by the microinverters.

Envoy-S Installation and Operation

View or Change Monitoring Settings

Under Monitoring, you can view web communication status.

To access the Cellular, Wi-Fi, Ethernet or Diagnostic Tools pages, select the > to the right of the desired page name. You will be prompted to enter the following login credentials:

 Username: envoy

 Password: nnnnnn (where nnnnnn are the last six digits of the Envoy-S serial number)

View Cellular Connection Information

When the Envoy-S uses the Mobile Connect modem to connect with Enlighten, select > to view Cellular

Configuration information.

View or Change Ethernet Settings

When the Envoy uses Ethernet to connect with Enlighten, select > to view Ethernet configuration information.

From here you can set up for static IP or reset the IP address, if needed.

WARNING: Do not change the Envoy DHCP setting to use a static IP address unless you also reserve the same IP address on the broadband router. See the section on DHCP reservations in the router instructions. Failure to reserve the static IP address on the router may result in duplicate IP addresses and intermittent Internet connection problems with the Envoy.

 To use a static IP address, select Use Static IP and enter information as needed.

 Select Update. The application asks you to confirm:

This may interrupt communications with the Envoy-S and require you to reconnect.

 Select OK to continue, or select Cancel.

View or Change Wi-Fi Settings

When the Envoy uses Wi-Fi to connect with Enlighten, select > to view Wi-Fi configuration information. From here you view

Available Networks (WPS and AP), Update Country, Enable AP

Mode, and view Device information.

If you replace the broadband router at the installation site, you need to update the connection information on the Envoy-S. To do this:

 Select Connect Other Network.

 Enter the new Wireless Network Name (ESSID) and

Security code.

If you need to disconnect the Envoy from a Wi-Fi network:

 Select More Info.

 Click Forget this Network.

Envoy-S Installation and Operation

Diagnose Network Connection

Select Diagnostic Tools to ping the Envoy, check network connectivity, and check the network route.

Ping: To check that the router or network host connected to the

Envoy:

 Select Ping.

 Enter the IP address or url for the router or network host.

The application displays a loading message until results are returned. If the router or network host is connected to the Envoy, the Ping returns a success message. If the router or network host is not connected to the Envoy, the Ping returns the following:

ping: bad address <xxx>

Check Network Connectivity: To check network connectivity details for the Envoy:

 Select Check Network Connectivity.

The application displays a loading message until results are returned. When the results return, the application displays a collection of basic network diagnostic checks and results for the Envoy.

Check Network Route: To see the Envoy’s path to the Internet for all network interfaces:

 Select Check Network Route.

The application displays a loading message until results are returned. When the results return, the application displays a collection of routing details for the Envoy’s path to the Internet.

Envoy-S Installation and Operation

View Microinverter Information

Under Microinverters, the screen displays:

 The number to the left of the word Detected indicates the number of microinverters detected by this



Envoy.

The number to the left of the word Communicating indicates the number of microinverters communicating with this Envoy.

 The number to the left of the words Producing Power indicates the number of microinverters communicating with this Envoy.

View Envoy Information

Under Envoy, the screen lists the Envoy serial number, time zone, and connection information that varies depending on Internet connection type, and version information.

Open a Connection for Enphase Troubleshooting

Under Connection to Enphase Support, there is an option to open a connection to allow Enphase to perform remote troubleshooting

If you contact Enphase Customer Support, Enphase personnel may ask you to open a secure connection for diagnostic purposes.

 To open secure connection so Enphase support personnel can remotely troubleshoot this system, select Open Connection.

 To close the secure connection, select Close Connection.

Envoy-S Installation and Operation

Troubleshooting

The following sections describe possible problems and solutions.

WARNING: Risk of electric shock. Risk of fire. Do not attempt to repair the Envoy-S; it contains no user-serviceable parts. Tampering with or opening the Envoy-S will void the warranty. If the Envoy-S fails, contact Enphase Customer Support for assistance

( enphase.com/en-us/support/contact ). Warranty void if cover removed. Refer servicing to qualified personnel.

Microinverter Detection Issues

Troubleshoot power line communication issues as follows.

Issue: Installer Toolkit Shows “Cross Domain Traffic Reported”

This means that communications from other Envoy(s) have been detected. To prevent this issue:

 When multiple Envoy-S units exist on a common service panel or utility transformer, commission only one system at a time at installation.

 When multiple Envoy-S units on a common service panel, use power line filters and separate the conduits and wires by at least 32 centimeters (12 inches).

If this alert persists or if the Installer Toolkit Microinverters screen or Enlighten shows more microinverters than expected, contact Enphase Customer support at enphase.com/en-us/support/contact .

Issue: Device Communications LED is Solid Amber

If the Device Communications LED lights solid amber, it may be a result of low light levels. If there is not enough sunlight to power up the microinverters, they cannot communicate with the Envoy. If there is sufficient daylight for the microinverters to power up, the Envoy may be having difficulty communicating over the power lines. To troubleshoot this issue:

 Check the Installer Toolkit mobile app to see which microinverters are not communicating.

 Check that the circuit breaker(s) for the PV array are in the ON position.

 Verify that the PV modules are connected to the microinverters.

 Verify the PV module DC voltage is within the allowable range for the microinverter.

Issue: Installer Toolkit Detects Fewer Microinverters than Expected

The Microinverters detected count is an indication of the number of online microinverters producing power, reporting in to the Envoy, and not having any error conditions. If this number is lower than expected, it may indicate that the Envoy is not done scanning/discovering the entire array. Alternatively, it may indicate that the Envoy is having difficulty communicating over the power lines. It could also be a result of low light levels or insufficient PV module voltage to power the microinverter. To troubleshoot the issue:

 Check Enlighten or use the Installer Toolkit to connect to the Envoy to see if any microinverters are not reporting in to the Envoy or having any error conditions.

 If installing the Envoy-S Standard, be sure that the Envoy is plugged directly into the wall and not into a power strip or surge protector. Unplug any other device sharing the outlet with the Envoy.

Envoy-S Installation and Operation

 Alternatively, plug the Envoy into a circuit that supports fewer electronic appliances. Appliances sharing a power receptacle with the Envoy may interfere with power line communication.

 Relocate your Envoy as close to the AC mains as possible. This ensures that the Envoy receives the strongest possible signal from each microinverter.

 If this problem occurs when light levels are low, try again during daylight hours.

Issue: No Microinverters are Reporting

Check for the following conditions.

Has a device scan been run while the array was active? A device scan may have been run while the array was not connected to the grid or when the array was not powered by sunlight.

 Run another scan during daylight hours.

 Check that the circuit breaker(s) for the PV array are in the ON position. For the Envoy to communicate with the microinverters, the PV circuit breakers must be in the ON position in the electrical load center.

 Verify that the PV modules are connected to the microinverters.

Is the Envoy well located? The Envoy must be near the primary load center or the array's downstream subpanel. If installing the Envoy-S Standard:

 Make sure the Envoy is not plugged into an outlet strip or surge protector.

 Plug the Envoy into an outlet closer to the main load center or subpanel.

 Unplug other devices from the AC outlet used for the Envoy.

 If signal strength is poor, power the Envoy from the solar production circuit (where local electrical code allows for monitoring equipment on the same circuit). This provides the best possible power line communications. The Envoy must be located indoors (a garage, attic, basement, or other cool, dry location) or in an NRTL-certified, NEMA type 3R enclosure.

Remember that the Envoy must also have an Internet connection.

Is the system energized? PV modules power microinverters, PV modules provide power only during daylight hours, and microinverters communicate only when powered.

 Run another scan during daylight hours.

 Check that the circuit breaker(s) for the PV array are in the ON position. For the Envoy to communicate with the microinverters, the PV circuit breakers must be in the ON position in the

 electrical load center.

Verify that the PV modules are connected to the microinverters.

Is there a phase imbalance?

 Ask the electrician to measure the conductors and neutral line to verify that the phases are balanced. If the phases are not balanced, electricians must recheck the wiring.

Is the Envoy-S plugged into a circuit on the primary load center while the PV circuit breakers are on

a downstream subpanel? The primary load center is full and doesn’t have additional capacity to add circuit breakers.



Add a subpanel with a small subset of circuit breakers

Hard wire the Envoy-S into that subpanel, so that it can be close to the PV circuit breaker.

Envoy-S Installation and Operation

Issue: Installer Toolkit Indicates that Scanning is Inhibited

It is best to leave the Envoy in this condition for normal operation. However, if you need to re-enable scanning (for example, if you replace a microinverter) contact Enphase Customer Support at enphase.com/en-us/support/contact .

Power Production Issues

Issue: Power Production LED is solid amber

The Power Production LED is solid green when all microinverters are producing, flashes green when a microinverter update is in progress, flashes amber when microinverters are not yet detected, or becomes solid amber when any microinverter that is expected to produce does not. Use Installer Toolkit to see which microinverters are affected.

 If none of the microinverters are producing power, there may be a grid or wiring issue. First, verify that there is proper input voltage and frequency from the grid. Next, check the breaker and wiring starting at the load center.

 If all of the non-productive microinverters are on the same branch, check the breaker and wiring starting at the junction box for the affected branch.

 If only one or scattered microinverters are not producing power, first check to see that the AC connectors are fully seated in the Engage Cable connectors. Next, check that each module is meeting the required start-up voltage for the microinverter (usually 22 V). A PV module that is failing or that is undersized may not generate enough power for AC conversion.

 Microinverters will not report production if they are not communicating with the Envoy-S. Refer

to “Microinverter Detection Issues” on page 36 for troubleshooting steps.

Internet Connection Issues

To the Local Area Network (LAN), the Envoy is just another host on the network, much like a personal computer. Enphase offers technical support at enphase.com/en-us/support/contact for Envoy issues, but

Enphase's Support responsibility does not extend to the premises network or LAN.

The Envoy must obtain a DHCP (Dynamic Host Configuration Protocol) IP address and have a route to the

Internet. The Envoy will request this IP address from the broadband router during the power-up sequence.

Two small green LEDs on the Ethernet port indicate Internet link and activity. During the sequence, one LED will be solid green, and the other will blink every few seconds.

Issue: Network Communications LED is Amber or Off

The Envoy-S is configured to perform a DHCP broadcast when it first boots up, and requests an an IP address from a DHCP source. This source can be a server/computer, but almost all consumer-grade broadband routers also provide DHCP services. When the Network Communications LED is solid amber, the Envoy-S has a local network connection only and failed to connect to Enlighten after its scheduled reporting time (five minutes). When the LED is off, there is no network connection.

If you are using the Enphase Mobile Connect modem and the Network Communications LED remains off or lights solid amber, see Troubleshooting in the Enphase Mobile Connect Installation Guide.

Envoy-S Installation and Operation

For any connection method, you can troubleshoot network issues using the Installer Toolkit mobile app by tapping the Network button, then Diagnostic Tools.

 Allow 10 minutes after initial installation. If the Envoy has recently received a valid IP address, the LED will likely turn green momentarily.

 Check network connectivity to the router or other DHCP server. You may also wish to contact

 your Internet Service Provider or refer to your router documentation for help.

Check that you are using a broadband router and not a switch or a hub. Many hubs and switches cannot provide a DHCP lease and may not allow the Envoy to connect to the web.

 Use the Installer Toolkit to Get New IP Address, and then allow 30 to 60 seconds for the Network



Communications LED to turn solid green.

When the Envoy-S is connected to the LAN via Ethernet cable, two small LEDs on the Ethernet port indicate Internet link and activity. One LED will be solid green, and the other will blink green or yellow every few seconds. If either LED is neither on nor blinking, try using a new Ethernet

(CAT5) cable in place of the existing cable.

 Power down all units in the chain, applying power again in this order: 1) modem, 2) router, and 3)

Envoy. Allow a few minutes for the IP address to be reassigned.

 If you replace the broadband router, configure the Envoy Wi-Fi settings for the new wireless network name (SSID) and password.

Issue: Wi-Fi Problems

If the Network Communications LED remains off:

 If the Envoy is installed in an enclosure, is the enclosure metallic? Metal enclosures may impede

 wireless communication.

Stucco and plaster wall construction may contain metal mesh, which can affect wireless range.

If you cannot see your router or access point in the list on the Envoy, or cannot maintain a connection, relocate the Envoy to be closer to your router or access point.

 The WPS connection window may have timed out. Retry the connection steps.

 Make sure that the broadband router is operational by checking that other devices at the site can access the network.

 If you cannot see your router or access point in the list on the Envoy, or cannot maintain a connection, it may be necessary to add a wireless repeater to extend the network range.

If the Network Communications LED lights solid amber:

 Power down all units in the chain, applying power again in this order: 1) broadband modem, 2) router or Wi-Fi base station, and 3) Envoy.

 Make sure that the broadband router is connected to the Internet by checking that other devices at the site can access the Internet. If the other devices are not connected to the Internet, contact your ISP for assistance.

Issue: Cellular Modem Connection Status “Not Connected”

If the Envoy-S uses an Enphase Mobile Connect, the Envoy-S Network Communications LED is solid amber for longer than 12 hours, and the Installer Toolkit displays a Connection Status of Not Connected:

 Unplug the modem USB cable.

 Power cycle the Envoy-S, and wait until Envoy-S completely restarts.

 Re-connect the cellular modem USB cable.

 Allow two minutes between any extraction and insertion of the modem cable in the USB port of the cellular modem.

Envoy-S Installation and Operation

Issue: Envoy-S is not Connecting with a New Router

If you replace the broadband router at the installation, you need to update the connection information on the

Envoy-S. To do this:



Connect to the Envoy-S local interface as described on page 31.

 Select Wi-Fi.

 Select Connect Other Network.

 Enter the new Wireless Network Name (ESSID) and Security code.

Local Networking Considerations

DHCP versus Static IP Addressing

If the site owner prefers not to use DHCP, you can set up the Envoy to use a static IP address. Use the

Installer Toolkit to configure the static IP. Refer to enphase.com/installer-toolkit/ for more information on the

Enphase Installer Toolkit.

 Tap the Network Connectivity menu item. This allows you to see if the Envoy is using DHCP or

Static-IP, and it allows you to change this setting if needed.

 Tap Check Network Connectivity to view the Envoy connections.

MAC Filtering

Check to see if Media Access Control (MAC) filtering is in use at the site. An example of a MAC address would be: 00:17:F2:D6:B1:45

 MAC addresses contain six pairs of characters, including any number 0-9 and letters A-F.

 The MAC address of the Envoy will begin with 00:D0:69

If MAC filtering is in use at the site, identify the specific MAC address of the Envoy and add it to list of authorized devices on the router. The MAC addresses (wired and wireless) are located on a label on the back of the Envoy.

Firewall Settings

The Envoy initiates outbound connections to Internet servers. Such connections may be restricted by firewall rules set up on the site’s broadband router. Broadband routers typically allow all outbound connections but restrict any/all inbound connections.

If outbound firewall rules are applied at the site, you must configure a static IP address for the Envoy and add new rules that allow outbound access as follows:

Envoy-S Installation and Operation

Direction Source

OUT <Envoy IP address>

Protocol

TCP

Port Destination

80, 443 reports.enphaseenergy.com

OUT <Envoy IP address> UDP 80 ping-udp.enphaseenergy.com

OUT <Envoy IP address> TCP 80, 443 home.enphaseenergy.com

The Envoy connects to these servers using their DNS names. If you add firewall rules for Envoy reporting,

Enphase recommends using the DNS names rather than the underlying IP addresses. This is because the IP addresses are subject to change without notice.

Microinverter Issues

Clear “DC Resistance Low - Power Off” Condition

This condition occurs only with the S-Series and M250 Microinverters and one model of the M215

Microinverter (M215-60-2LL-S22-IG). A solid red status LED on the microinverter indicates this condition. The

LED will remain red and the fault will continue to be reported by the Envoy until the error has been cleared.

An insulation resistance (IR) sensor in the microinverter measures the resistance between the positive and negative PV inputs to ground. If either resistance drops below a threshold, the microinverter stops power production and raises this condition. This may indicate defective module insulation, defective wiring or connectors, moisture ingress, etc. Although the cause may be temporary, this microinverter condition persists until the sensor is manually reset.

If a microinverter registers a DC Resistance Low - Power Off condition, you can attempt to clear this condition. An Envoy is required to send the clear-dc-resistance-low message to clear the condition. If the condition does not clear after you perform the following procedure, contact Enphase Energy customer support at enphase.com/en-us/support/contact .

There are two ways to send a clear message to the microinverter. Note that the condition will not clear after sensor reset if the cause of the failure is still present. If the condition persists, contact your installer.

Method 1: Clear this error through Enlighten

 Access the System in Enlighten.

 Click the Events tab. The next screen shows that there is a current DC Resistance Low - Power Off condition for the system.

 Click DC Resistance Low - Power Off.

 Where “n” is the number of affected devices, click n devices (show details).

 Click the serial number of the affected microinverter.

 Click the Reset DC Resistance Low - Power Off Sensor button.

The system displays, “A DC Resistance Low- Power Off reset task was issued on 08/03/2015 01:34

PM CDT for this microinverter and is still pending.”

Envoy-S Installation and Operation

Method 2: Send the clear message using Installer Toolkit

On the list of detected microinverters, a green dot or red square appears to the left of each microinverter serial number. A green dot indicates Status OK. A red square indicates an event for that microinverter.

 Tap the to the left of the serial number to view details for a microinverter event.

 If the microinverter status shows that there is an active DC Resistance Low – Power Off condition, tap the to send the clear message to the affected microinverter.

The app then indicates that a clear message was sent.

Clear “GFI Tripped” Condition

This condition occurs only with the M190, D380, M210, M200, M175 Microinverters and one model of the

M215 Microinverter (M215-60-2LL-S22). A solid red status LED on the microinverter indicates a ground fault

(GFDI) error. The LED will remain red and the fault will continue to be reported by the Envoy until the error has been cleared.

If a microinverter registers a GFI Tripped condition, you can attempt to clear this condition. An Envoy is required to send the clear-gfi message to clear the condition. If the condition does not clear after you perform the following procedure, contact Enphase Energy customer support at enphase.com/en-us/support/contact .

There are two ways to send a clear message to the microinverter. Note that the condition will not clear after sensor reset if the cause of the failure is still present.

Method 1: Clear this error through Enlighten

 Access the System in Enlighten.

 Click the Events tab. The next screen shows that there is a current GFI Tripped condition for the system.

 Click GFI Tripped.

 Where “n” is the number of affected devices, click n devices (show details).

 Click the serial number of the affected microinverter.

 Click the Reset GFI Sensor button.

The system displays, “A GFI sensor reset task was issued on 08/03/2015 01:34 PM CDT for this microinverter and is still pending.”

Envoy-S Installation and Operation

Method 2: Send the clear message using Installer Toolkit

 Tap the to the left of the serial number to view details for a microinverter event.

 If the microinverter status shows that there is an active GFI tripped condition, tap the to send the clear message to the affected microinverter.

The app then indicates that a clear message was sent.

Envoy-S Installation and Operation

Replacing an Envoy-S

If problems remain after following the troubleshooting steps above, contact Enphase at enphase.com/en-us/support/contact .

DANGER! Risk of electric shock. Risk of fire. Do not attempt to repair the Envoy-S; it contains no user-serviceable parts. Tampering with or opening the Envoy-S will void the warranty. If the Envoy-S fails, contact Enphase Customer Support for assistance at enphase.com/en-us/support/contact .

 Warranty void if cover removed.

 Refer servicing to qualified personnel.

If Enphase Customer Support authorizes an Envoy-S replacement (RMA), perform the following steps.

DANGER! Risk of electrocution! When replacing the Envoy-S Metered, CTs must be installed with no current flowing in the sensed circuit. Always install CT wires in the terminal blocks before energizing the sensed circuit. Always de-energize the sensed circuit before disconnecting the CT leads from the terminal block.

DANGER! Risk of electric shock. Be aware that installation of this equipment includes risk of electric shock. Always de-energize circuits before wiring for power and CTs.

DANGER! Risk of electric shock. Risk of fire. If the Envoy-S is wired for metering, only qualified personnel should install or replace the Enphase Envoy-S.

WARNING! When replacing the Envoy-S Metered, you must install a new production CT to maintain metering accuracy. A new production CT is included with the replacement Envoy-S.

WARNING! If the Envoy-S you are replacing uses an Enphase cellular modem (Enphase

Mobile Connect), do NOT move the cellular modem to another installation site. This deactivates the modem.

Replacing an Envoy-S Standard (non-hardwired)

If Enphase Customer Support authorizes replacement (RMA) of an Envoy-S Standard (Model ENV-S-AB-120-

A), perform the following steps.

Disconnect the Ethernet cable (if used) and power cord from the old Envoy-S.

When the replacement Envoy-S arrives, power it as described in “2. Provide a Power Connection” on page 13.

Verify that the new Envoy-S powers up.

NOTE: When powered up and connected for the first time, the Envoy-S may retrieve an automatic update from Enphase. This update may take up to 15 minutes. During update the

Envoy-S LEDs flash green sequentially.

Envoy-S Installation and Operation

WARNING! Risk of Equipment Damage. Do not remove power from the Envoy-S if the LEDs are flashing green sequentially. This indicates that a software update is in progress.

WARNING: If the included power cord is missing or lost, you must use a UL listed junior hard service max three-foot cord with a NEMA configuration 1-15P plug, rated for a minimum of

125 VAC with a type IEC 60320-C7 connector.

Connect the Envoy-S to Enlighten as described in “7. Connect to Enlighten” on page 21.

Verify that the new Envoy-S Network Communications LED lights green within five minutes. If

not, follow the network troubleshooting steps on page 38.

If possible, log in to Enlighten and add the Envoy-S to the Activation for this system by clicking

Add Another Envoy under the Envoy section.

Verify that the new Envoy-S starts discovering microinverters within 20 minutes of starting up. If necessary, use the Enlighten or Device Scan button to start a new device scan during daylight

hours. (See “Initiate a New Scan for Microinverters” on page 26.)

NOTE: If the old Envoy-S has communicated to the microinverters on the same day that the new replacement Envoy-S is installed, the new Envoy-S will be unable to discover the microinverters. Contact Enphase at enphase.com/en-us/support/contact for assistance in this situation.

Assess the power line communications by running a Communication Check from Enlighten or the Installer Toolkit. If the communication check shows poor power line communications, relocate the Envoy-S closer to the load center.

Contact Enphase Support at enphase.com/en-us/support/contact to have the new Envoy-S added to your system and to retire the replaced Envoy-S.

10.

Ship the old Envoy-S to Enphase using the supplied RMA shipping label.

Replacing a Hardwired Envoy-S

If Enphase Customer Support authorizes an Envoy-S replacement (RMA), perform the following steps.

DANGER! Risk of electrocution! CTs must be installed with no current flowing in the sensed circuit. Always install CT wires in the terminal blocks before energizing the sensed circuit.

Do not disconnect the CT leads from the terminal block while the sensed circuit is energized.

DANGER! Risk of electric shock. Be aware that installation of this equipment includes risk of electric shock. If you wire the Envoy-S at the subpanel, always de-energize the subpanel before servicing.

WARNING! When replacing an Envoy-S that uses a production CT (model ENV-S-AM1-120), you must install the new production CT included with the replacement Envoy-S.

Turn off the circuit breaker supplying Envoy-S.

Envoy-S Installation and Operation

Disconnect the L1, L2, L3 (if used) and Neutral wires from the old Envoy.

Disconnect the Ethernet cable (if used).

Turn off the circuit breaker supplying the microinverters.

Unlatch the split-core of the production CT (if used) before disconnecting. Once the CT is unlatched, remove it from the sensed wires.

Unlatch the split-core of the consumption CTs (if used) before disconnecting. Once the CTs are unlatched, remove them from the sensed wires.

When the replacement Envoy-S arrives, install the Envoy-S and provide power as described in “2.

Provide a Power Connection” on page 13.

Install the new production CT and consumption CTs (if used) as described in “3. Install CTs for

Metering (Model ENV-S-AM1-120 only)” on page 16.

Verify that the new Envoy-S powers up.

BEST PRACTICE: When powered up and connected for the first time, the Envoy-S may retrieve an automatic update from Enphase. This update may take up to 15 minutes. During the update the Envoy-S LEDs flash green sequentially.

WARNING! Risk of Equipment Damage. Do not remove power from the Envoy-S if the Envoy-

S LEDs are flashing green sequentially. This indicates that a software update is in progress.

10.

Connect the Envoy-S to Enlighten as described in “7. Connect to Enlighten” on page 21.

11.

Verify that the new Envoy-S Network Communications LED lights green within five minutes. If

not, follow the network troubleshooting steps on page 38.

12.

If possible, log in to Enlighten and add the Envoy-S to the Activation for this system by clicking

Add Another Envoy under the Envoy section.

13.

Verify that the new Envoy-S starts discovering microinverters within 20 minutes of starting up. If necessary, use the Enlighten or Device Scan button to start a new device scan during daylight

hours. (See “Initiate a New Scan for Microinverters” on page 26.)

14.

15.

Contact Enphase Support at enphase.com/en-us/support/contact to have the new Envoy-S added to your system and to retire the replaced Envoy-S.

16.

Ship the old Envoy-S to Enphase using the supplied RMA shipping label.

Envoy-S Installation and Operation

Event Messages

To view system events in Installer Toolkit:

 Open the Installer Toolkit app, tap the More button and then tap Events. The app responds with a list

 of system Events in chronological order from most recent to oldest.

If you are looking for instances of a specific Event, date, or serial number, enter all or part of the information in the search field.

 Tap to return to the previous screen.

To view events in Enlighten, click the Events tab.

The following table lists event messages that indicate various conditions.

Message Shown on Events and Inventory Screens Description

ACFreqChangeTooFast (AC

Frequency Changing Too

Fast)

AcFrequencyOOR (AC

Frequency Out Of Range)

Recommended Action: No action is required unless the condition persists.

Description: AC frequency is the frequency at which voltage varies on the utility grid. The microinverter reports that this value is changing more rapidly than allowed. Frequency Changing Too Fast events are usually transient and selfcorrecting by the utility.

Recommended Action: This condition should correct itself. No action is required.

Description: The microinverter reports that the frequency coming from the utility is either too low or too high as specified by applicable regional standards.

AC frequency is the frequency at which voltage varies on the utility grid. Frequency

Out of Range events are usually transient and self-correcting by the utility.

When the microinverter detects an out of frequency condition, it must remain offline until the utility has been within acceptable limits continuously for a short period of time (seconds to minutes, varies by region). If, during that time, the utility again exceeds or falls short of acceptable limits, the timer must restart and the microinverter may not begin producing power for an additional short period following the last out-of-bounds condition.

AcMonitorErr

ACVoltageAverageHi (AC

Voltage Average Too High)

If the condition persists: Contact your installer.

Recommended Action: No action is required unless the condition persists.

Description: The microinverter is temporarily unable perform power conversion.

If the condition repeats or persists: Contact your installer to arrange for the installation of a replacement microinverter.

Recommended Action: No action is required unless the condition persists.

Description: The microinverter reports that the average AC voltage coming from the utility over the past 10 minutes was too high for the configured grid profile.

If the condition persists: Contact your installer or refer to the Troubleshooting

Guide at

Envoy-S Installation and Operation

Message Shown on Events and Inventory Screens

AcVoltageOOR (AC Voltage

Out Of Range)

Added pcu device with part number 800-00(xxx-xxx)

Application start

Applying grid profile xx from regulatory specification yy

BadFlashImage (Bad Flash

Image)

Bad Meter

Calibration Corrupted

CommandedReset

ControlRequest

CriticalTemperature

Description

Recommended Action: This condition should correct itself. No action is required.

Description: The microinverter reports that the AC voltage coming from the utility is either too low or too high as specified by applicable regional standards.

When a microinverter detects the voltage out of range condition, it does not produce power (per regulation) until the utility voltage returns within acceptable limits for several minutes (time varies by region). If during that time the utility voltage again goes beyond acceptable limits, the timer restarts.

If the condition persists: Contact your installer.

Recommended Action: No action is required.

Description: The Envoy-S added a new microinverter to the database.

Recommended Action: No action is required.

Description: Normal application start up.

Description: The Envoy has started a change to the grid profile for the microinverters. This process may take a few minutes. No action is required. xx = grid profile name yy = Regional specification name.

Recommended Action: Contact Enphase Energy customer support.

Description: The microinverter is not producing power due to a software problem.

Recommended Action: Contact Enphase Energy customer support.

Description: The metering functions of the Envoy-S have failed.

Recommended Action: Contact Enphase Energy customer support.

Description: Metering calibration is incorrect.

Recommended Action: No action is required; it will automatically resume normal operation momentarily.

Description: The microinverter was reset, either following a successful software download or by user command.

Recommended Action: No action is required.

Description: The Envoy has received a control request. This uncommon condition will occur only during isolated troubleshooting procedures by Enphase personnel.

Recommended Action: This condition should correct itself. No action is required.

Description: This rare condition occurs if the microinverter reports an internal temperature that exceeds its rated range. It reacts by producing less power to reduce internal temperature. This reflects internal temperature coming from a sensor inside the microinverter, not the ambient temperature. Once the internal temperature of the microinverter is once again within normal limits, it will resume full power production and this event message will clear.

If the condition persists: Contact your installer or Enphase Energy customer support at enphase.com/en-us/support/contact .

Envoy-S Installation and Operation

Message Shown on Events and Inventory Screens

Description

DcPowerTooLow Recommended Action: This condition should correct itself. No action is required.

Description: This condition may occur at sunrise or sunset, while the modules are covered with snow, or during extreme weather. This event indicates that sunlight levels are too low for effective production. Once sunlight levels increase, the microinverter resumes power production and this event message will clear.

If the condition persists: Contact your installer or Enphase Energy customer support at enphase.com/en-us/support/contact .

DCResistanceLoPowerOff Recommended Action: Clear this error via Enlighten’s Current Issues page. Note that the condition will not clear after sensor reset if the cause of the failure is still present. If the condition persists, contact your installer.

Description: An IR sensor in the microinverter measures the resistance between the positive and negative PV inputs to ground. If either resistance drops below a threshold, the microinverter stops power production and raises this condition. This may indicate defective module insulation, defective wiring or connectors, moisture ingress, etc. Although the cause may be temporary, this microinverter condition persists until the sensor is manually reset.

If the condition persists: If the event persists after clearing the condition, contact your installer.

For further assistance, contact Enphase Energy customer support at enphase.com/en-us/support/contact.

DcVoltageTooHigh Recommended Action: Ask your installer to check that the PV module and microinverter are compatible. It may be that the PV module generates a higher voltage than is recommended for the microinverter. check PV module electrical compatibility at enphase.com/en-us/support/module-compatibility .

Description: The microinverter reports that DC input voltage from the PV module is too high.

If the condition persists: If the PV module is compatible and the condition persists, contact your installer.

DcVoltageTooLow

DownloadBegin (Download to module begun)

DownloadEnd (Download to module ended)

Recommended Action: This is usually a normal condition during hours of low light and at dawn and dusk. No action is required.

Description: The microinverter reports that DC input voltage from the PV module is too low. If this condition does not clear during hours of full daylight, the microinverters may be heavily shaded or covered by snow.

If the condition persists: If this event occurs during full daylight or if the condition persists, contact your installer. If this event occurs and clears daily or often during hours of full daylight, check PV module and microinverter compatibility at enphase.com/en-us/support/module-compatibility

Description: The Envoy has started a software update to the indicated microinverter.

Recommended Action: This process may take a few minutes. No action is required.

Description: The Envoy has successfully delivered a software update to a microinverter.

Recommended Action: No action is required.

Envoy-S Installation and Operation

Message Shown on Events and Inventory Screens

DownloadFail (Download to module failed)

Envoy Stopped

FilesystemAuditFailure

GfiTripped

GridGone

GridInstability

GridOffsetHi

Description

Description: The Envoy was unable to successfully deliver a software update to a microinverter.

Recommended Action: No action is required; the Envoy will repeat the attempt.

Recommended Action: No action is required.

Description: Envoy powered down

Description: The Envoy file system integrity audit has failed.

Recommended Action: For assistance, contact Enphase Energy customer support.

Recommended Action: Clear this error via Enlighten’s Current Issues page. After being reset, the condition will clear unless the conditions causing the event remain or if the failure is permanent.

Description: A microinverter has detected ground fault current greater than one amp on the DC side. A GFI sensor in the microinverter detects changes in the DC current and quickly opens (breaks) the circuit when there is a ground fault. These ground faults can be due to DC wires making contact with grounded racking, moisture, or overload.

If the condition persists: If the GFI event persists after clearing the condition from the Envoy, contact your installer.

For further assistance, contact Enphase Energy customer support at enphase.com/en-us/support/contact .

Recommended Action: In most cases no action is required. This occurs if there is a power outage in your area and the system has stopped production. Solar production will resume when the utility restores power to your area. Verify that the circuit breaker(s) for the PV array are ON at the load center. If all breaker(s) are on, the condition should clear itself.

Description: The microinverter has detected grid instability. In most cases, this points to a problem with the utility service (e.g., a power outage). In other cases, this may be a false positive and a microinverter may be incorrectly reporting grid instability. In this case a microinverter software update may be needed to help resolve this issue.

If the condition persists: Contact your installer.

Description: The microinverter is not producing power due to one or more of these conditions: AC Frequency Out Of Range, AC Voltage Out Of Range, or Grid Gone.

Note that Grid Instability will remain for about five minutes after the underlying conditions clear. No power is produced during this time.

Recommended Action: No action is required unless the condition persists. If it persists, contact Enphase Energy customer support.

Recommended Action: No action is required unless the condition persists.

Description: The average current to the grid is too high for the configured grid profile.

When the microinverter is operating normally, no DC current is injected into the grid. If the DC current is too high, this may indicate an issue with the microinverter.

If the condition persists: Contact your installer.

Envoy-S Installation and Operation

Message Shown on Events and Inventory Screens

GridOffsetLow

Grid profile application completed

GwFailure (Gateway

Failure)

HardwareError

IupLinkProblem

ModuleAdd

Microinverter failed to report

Description

Recommended Action: No action is required unless the condition persists.

Description: The average current to the grid is too low for the configured grid profile.

When the microinverter is operating normally, no DC current is injected into the grid. If the DC current is too low (negative), this may indicate an issue with the microinverter.

If the condition persists: Contact your installer.

Description: The Envoy has completed a change to the grid profile for the microinverters. No action is required.

Description: This condition occurs after the Envoy has tried unsuccessfully three times to start up.

This condition does not affect your system’s ability to produce power. When the connection is restored, the Envoy will catch up with the transmission of any/all energy data it has stored.

Recommended Action: Unplug the Envoy from the AC outlet and plug it in once again. Leave it plugged in and in place for at least 15 minutes.

If the condition persists: If the condition persists, contact your installer.

Recommended Action: Contact your installer to arrange for the installation of a replacement microinverter.

Description: A hardware failure has occurred that prevents power conversion.

Recommended Action: No action is required unless the condition persists.

Description: The IUP (Inter Microprocessor) is the internal communications link between the two sides of a D380 Microinverter. The message indicates that the

Envoy detects a communications problem with the indicated D380(s).

If the condition persists: Contact Enphase Customer Support at enphase.com/enus/support/contact for a software update. If the D380 does not respond to the update, it will need to be replaced.

Description: The Envoy has detected and new device and is now associated to that new device. No action is required.

Recommended Action: Ignore occasional instances of this event. Communication usually recovers on the next reporting cycle.

If communications do not recover immediately, ensure that the Envoy is plugged in very near the load center. Also, if other devices are sharing the outlet with the

Envoy, remove those devices from the outlet to improve signal strength.

If the Enphase Envoy was recently relocated or if new devices or appliances were added to the circuit, it is possible that the new situation is not suitable for power line communication. The Envoy may need to be relocated to improve signal strength and reduce interfering noise on the power lines.

To determine the quality of the Envoy’s location for communication, run a

Communications check.

Description: The Envoy reporting this condition is unable to communicate with the microinverters over the power lines.

If the condition persists: See “Power Line Communication Troubleshooting” on

page 36, or contact your installer.

Envoy-S Installation and Operation

Message Shown on Events and Inventory Screens

Microinverter grid configuration failed after 5 attempts, retrying

Microinverter grid configuration failure cleared after xx attempts

ModSleep

No Grid Profile

OverTemperature

PwrGenOffByCmd (Power generation off by command)

PowerOnReset

RGM Error

RGM Power Quality

Warning

Shutdown

Startup

Description

Description: The attempt to change the grid profile for the microinverters has failed after five tries. The Envoy will continue to attempt to change the grid profile.

Recommended Action: No action is required.

Description: A failed attempt to change the grid profile for the microinverters has cleared. The grid profile was successfully applied. xx = number of attempts

Recommended Action: No action is required.

Description: The microinverter is off for the night.

Recommended Action: No action is required.

Recommended Action: Ask the installer set up select a grid profile for this system.

Description: The Envoy has not been set up with a grid profile for the microinverters.

Description: The microinverter is too hot and is not producing power. This very rare condition usually clears without intervention.

Recommended Action: No action is required unless the condition persists. If it persists, contact Enphase Energy customer support.

Description: The microinverter is not producing power by user command. This uncommon condition will occur only during isolated troubleshooting procedures by

Enphase personnel.

Recommended Action: No action is required.

Description: The microinverter has powered on after having DC disconnected.

Recommended Action: No action is required.

Description: The Enphase-compatible Revenue Grade Meter (RGM) has failed.

Recommended Action: Contact your installer to arrange for installation of a replacement meter.

Description: The Enphase-compatible Revenue Grade Meter (RGM) reports that the

AC voltage coming from the utility is either too low or too high as specified by applicable regional standards. This is usually a temporary condition that will clear when power quality from the local utility returns to normal.

Recommended Action: No action is required unless the condition persists. If the condition persists, contact your installer.

Description: The Envoy has been powered down (unplugged from AC power).

Recommended Action: Restore AC power to the Envoy.

Description: The Envoy has been powered back up (plugged back in to AC power).

Recommended Action: No action is required.

Envoy-S Installation and Operation

Message Shown on Events and Inventory Screens

Tpm Profile Inverter

Incompatible

Transient Grid Profile

Description

Recommended Action: The microinverters may need to have a software update in order to be compatible with the selected grid profile. (The selected grid profile defines operating parameters that are compatible with your utility service.) If a microinverter software update does not start automatically a few minutes after the after Envoy has discovered all microinverters, contact Enphase Energy customer support. Note that the Envoy requires a minimum of 3 bars to communicate effectively with the microinverters for the software update.

Description: This message displays when the selected grid profile is incompatible with microinverter software or hardware. This condition can affect your system’s ability to produce power.

If the condition persists: Contact Enphase Energy customer support at enphase.com/en-us/support/contact .

Recommended Action: No action is required. This condition will clear once the grid profile test is complete.

Description: This system is currently in test mode.

Envoy-S Installation and Operation

Technical Data

Model Numbers

Envoy-S, Standard

ENV-S-AB-120-A

Envoy-S, Metered

ENV-S-AM1-120

Enphase Envoy-S communications gateway with standard PV production monitoring (+/- 5%).

Enphase Envoy-S communications gateway with integrated revenue grade PV production metering (ANSI C12.20 +/- 0.5%) and optional consumption monitoring (+/- 2.5%).

Accessories (order separately)

Enphase Mobile Connect

CELLMODEM-01

Consumption Monitoring CT

CT-200-SPLIT

Plug and play industrial grade cellular modem with five-year data plan for systems up to 60 microinverters. (Available where there is adequate cellular service in the installation area.)

For use with ENV-S-AM1-120, split-core current transformers enable whole home consumption metering (+/- 2.5%).

Wire / Power Requirements / Specifications

Cord connected

120 VAC, 60 Hz (ENV-S-AB-120-A)

Max 15 A overcurrent protection required. 120 VAC L-N, 0.22 A, 60 Hz, OVC III

Hard-wired to subpanel

Relay contacts

CT leads

120 VAC, 60 Hz (ENV-S-AB-120-A)

120/240 VAC split-phase (ENV-S-AM1-120)

120 VAC or 120/240 VAC or 208Y/120 VAC, 0.22 A, 60 Hz, OVC III.

When hard wired and installed in an enclosure, the supply wiring must be 14 AWG copper rated to 75 degrees C or better, and it must be protected by a maximum

15 A breaker

240 VAC, OVC II

Pilot duty, B300 (240 V or 120 V, 360 VA)

The production CT leads are 1.5m (4.9’) long, 18AWG, and are rated for 200A

The consumption CT leads are 4m (13.1’) long, 18AWG, and are rated for 200A

Capacity

Number of microinverters polled

Mechanical Data

Up to 600

Dimensions (WxHxD) 21.3 x 12.6 x 4.5 cm (8.4” x 5” x 1.8”)

17.6 oz. (498 g) Weight

Environmental Data

Ambient temperature range

Relative Humidity

-40° to 65° C (-40° to 149° F)

-40° to 46° C (-40° to 115° F) if installed in an enclosure

95%

Environmental rating

Altitude use

Cooling

IP30. For installation indoors or in an NRTL-certified, NEMA type 3R enclosure

To 2000 meters (6560 feet)

Natural convection

Envoy-S Installation and Operation

Internet Connection Options

Integrated Wi-Fi

Ethernet

Cellular

Measurement Circuit

Voltage

Current

Measurement Circuit

Metering options

CSI Eligibility

802.11b/g/n (2.4 GHz, 5 GHz)

Optional, 802.3, Cat5E (or Cat 6) UTP Ethernet cable (not included)

Optional, CELLMODEM-01 (not included)

120 VAC or 120/240 VAC or 208Y/120 VAC at the power input terminal block

Up to 200 A via CT inputs

Per IEC/EN/CSA/UL 61010, CAT III

 Model ENV-S-AM1-120: Revenue grade production and consumption metering; ANSI C12.20, 0.5 accuracy class.

 Model ENV-S-AB-120-A: Microinverter reporting; Accuracy +/- 5.0%

The Envoy-S is included in the List of Eligible System Performance Meters for the

CSI program.

Compliance

Compliance

UL 916,

CAN/CSA C22.2 No. 61010-1,

CAN ICES-003 (B)/NMB-003(B),

47 CFR, Part 15, Class B,

IEC/EN 61010-1:2010,

EN50065-1, EN61000-4-5, EN61000-6-1, and EN61000-6-2

Metering: ANSI C12.20 accuracy class 0.5 (ENV-S-AM1-120).

INSTALLATION AND OPERATION MANUAL

Enphase Envoy-S

Contact Information

FCC Compliance

Other Information

Audience

Table of Contents

SAFETY

Read this First

Safety Instructions

The Enphase Envoy-S

How the Enphase Microinverter System Works

Installation Planning and Preparation

Pre-installation Checks

Select the Envoy-S Type to Install

Plan the Power Connection

Plan the Internet Connection

Download the Installer Toolkit App

Metering Considerations

Box Contents

Required Items

Optional Items

System Metering Options

Create the Map and Install the PV Modules and Microinverters

Installation Sequence

1. Choose a location for the Envoy-S

2. Provide a power connection

3. Install CTs, if needed

4. Energize the Envoy-S

5. Detect microinverters

6. Verify system configuration

7. Connect to Enlighten

8. Send summary report

Installing the Envoy-S

1. Choose a Location for the Envoy-S

2. Provide a Power Connection

Provide Power for the Envoy-S Standard (ENV-S-AB-120-A)

Provide Power for the Envoy-S Metered (ENV-S-AM1-120)

3. Install CTs for Metering (Model ENV-S-AM1-120 only)

Install the CT for Production Metering

Install CTs for Consumption Metering (Optional)

Extend Consumption CT Leads, If Needed

4. Energize the Envoy-S

5. Detect the Microinverters

Method A: Provision Microinverters with Installer Toolkit

Method B: Discover Microinverters with Installer Toolkit

Method C: Discover Microinverters with the Envoy-S

With All Methods

6. Verify System Configuration

7. Connect to Enlighten

Method A: Integrated Wi-Fi

Method B: Enphase Mobile Connect Modem

Method C: Ethernet Cable

Method D: Power Line Communication Bridges

If the Internet Connection Fails

8. Send System Summary Report

Activate Monitoring

Method A: If the Envoy-S is Associated with a System in Installer Toolkit

Method B: If the Envoy-S is NOT associated with a System in Installer Toolkit

View System Performance in Enlighten

Envoy-S Operation

Envoy-S Displays and Controls

Envoy-S LED States

LED Behavior at Initial Start Up

Initial Communications Check

More about Device Communications States

Initiate a New Scan for Microinverters

Connecting to Envoy-S

Connect Using the Installer Toolkit App

Method A: Use the Site’s Wireless Router to Connect to the Envoy-S

Method B: Create a Wireless Access Point

Complete the Connection to Envoy-S with Installer Toolkit

Connect Remotely Using Enlighten

Connect Using the Envoy-S Local Interface

View Production Readings

View or Change Monitoring Settings

View Microinverter Information

View Envoy Information

Open a Connection for Enphase Troubleshooting

Troubleshooting