Enphase Envoy-S Standard, Metered Envoy Installation and Operation Manual
Below you will find brief information for Envoy-S Standard, Envoy-S Metered. The Envoy-S operates as a gateway between the Enphase Microinverters and Enphase Enlighten. The Enphase Enlighten web-based monitoring and analysis software analyzes the data collected by each communicating microinverter. Enlighten automatically detects any shortfall in energy production, identifies possible causes, and suggests solutions.
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INSTALLATION AND OPERATION
MANUAL
Enphase Envoy-S
141-00027, Rev 01
Envoy-S Installation and Operation
Contact Information
Enphase Energy Inc.
1420 N. McDowell Blvd.
Petaluma, CA 94954 enphase.com
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.
Copyright © 2015 Enphase Energy Inc. All rights reserved.
Audience
This manual is intended for use by professional installation and maintenance personnel.
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Table of Contents
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 .................................................................................................................... 7
Plan the Power Connection ......................................................................................................... 7
Plan the Internet Connection ....................................................................................................... 8
Download the Installer Toolkit ...................................................................................................... 8
Metering Considerations .............................................................................................................. 8
Box Contents ............................................................................................................................... 8
Required Items............................................................................................................................. 9
Optional Items .............................................................................................................................. 9
System Metering Options ............................................................................................................ 9
Create the Map and Install the PV Modules and Microinverters ................................................. 9
Installation Sequence .................................................................................................................... 10
Installing the Envoy-S ............................................................................................................... 11
1. Choose a Location for the Envoy-S ........................................................................................... 12
2. Provide a Power Connection ..................................................................................................... 12
Provide Power for the Envoy-S Standard (ENV-S-AB-120-A) .................................................. 12
Provide Power for the Envoy-S Metered (ENV-S-AM1-120) ..................................................... 14
3. Install CTs for Metering (Model ENV-S-AM1-120 only) ............................................................. 15
Install the CT for Production Metering ....................................................................................... 15
Install CTs for Consumption Metering (Optional for Model ENV-S-AM1-120) .......................... 16
Extend Consumption CT Leads, If Needed ............................................................................... 16
4. Energize the Envoy-S ................................................................................................................ 17
5. Detect the Microinverters ........................................................................................................... 18
Method A: Provision Microinverters with Installer Toolkit .......................................................... 18
Method B: Discover Microinverters with Installer Toolkit ........................................................... 18
Method C: Discover Microinverters with the Envoy-S ............................................................... 18
With All Methods ........................................................................................................................ 18
6. Verify System Configuration ...................................................................................................... 19
7. Connect to Enlighten ................................................................................................................. 19
Method A: Integrated Wi-Fi ........................................................................................................ 19
Method B: Enphase Mobile Connect ......................................................................................... 20
Method C: Ethernet Cable ......................................................................................................... 20
Method D: Power Line Communication Bridges ........................................................................ 21
If the Internet Connection Fails .................................................................................................. 21
8. Send System Summary Report ................................................................................................. 21
Activate Monitoring ................................................................................................................... 22
Method A: If the Envoy-S is Associated with a System in Installer Toolkit ................................ 22
Method B: If the Envoy-S is NOT associated with a System in Installer Toolkit ....................... 22
View System Performance in Enlighten .................................................................................... 22
Envoy-S Operation ................................................................................................................... 23
Envoy-S Displays and Controls ..................................................................................................... 23
Envoy-S LED States ...................................................................................................................... 23
LED Behavior at Initial Start Up ..................................................................................................... 24
Initial Communications Check ................................................................................................... 24
More about Microinverter Communications States.................................................................... 24
Initiate a New Scan for Microinverters ........................................................................................... 24
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Connecting to Envoy-S ............................................................................................................. 25
Connect Using the Installer Toolkit App ........................................................................................ 25
Method A: Use the Site’s Wireless Router to Connect to the Envoy-S ..................................... 25
Method B: Create a Wireless Access Point ............................................................................... 25
Complete the Connection to Envoy-S with Installer Toolkit ....................................................... 26
Connect Remotely Using Enlighten ............................................................................................... 28
Connect Using the Envoy-S Local Interface .................................................................................. 29
View Production Readings ......................................................................................................... 29
View or Change Monitoring Settings ......................................................................................... 29
View Microinverter Information .................................................................................................. 33
View Envoy Information ............................................................................................................. 33
Open a Connection for Enphase Troubleshooting .................................................................... 33
Troubleshooting ....................................................................................................................... 34
Microinverter Detection Issues ...................................................................................................... 34
Issue: Microinverter Communications LED is Solid Amber ....................................................... 34
Issue: Installer Toolkit Detects Fewer Microinverters than Expected ........................................ 34
Issue: No Microinverters are Reporting ..................................................................................... 34
Issue: Installer Toolkit Indicates that Scanning is Inhibited ....................................................... 35
Power Production Issues ............................................................................................................... 35
Issue: Power Production LED is solid amber ............................................................................ 35
Internet Connection Issues ............................................................................................................ 36
Issue: Network Communications LED is Amber or Off .............................................................. 36
Issue: Wi-Fi Problems ................................................................................................................ 37
Issue: Cellular Connection Status Not Connected .................................................................... 37
Issue: Envoy-S is not Connecting with a New Router ............................................................... 37
Local Networking Considerations .................................................................................................. 37
DHCP versus Static IP Addressing ........................................................................................... 37
MAC Filtering ............................................................................................................................. 38
Firewall Settings......................................................................................................................... 38
Microinverter Issues ....................................................................................................................... 38
Clear DC Resistance Low - Power Off Condition ...................................................................... 38
Clear GFI Tripped Condition ...................................................................................................... 39
Replacing an Envoy-S ................................................................................................................... 41
Replacing an Envoy-S Standard with AC Power Cord (Model ENV-S-AB-120-A) .................... 41
Replacing a Hardwired Envoy-S ................................................................................................ 42
Event Messages ............................................................................................................................ 44
Technical Data ......................................................................................................................... 50
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SAFETY
Read this First
Follow the instructions in this manual. These instructions are key to the installation and maintenance of the Enphase
®
Envoy-S.
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:
This indicates a hazardous situation, which if not avoided, will result in death or serious injury.
WARNING:
NOTE:
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. Do not energize the sensed circuit until the CT leads are installed in the terminal block.
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
). 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.
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The Enphase Envoy-S
The Enphase Envoy-S is an integral component of the Enphase
®
Microinverter System™. It operates between the Enphase Microinverters and the Enphase Enlighten
®
web-based monitoring and analysis software. The Envoy-S monitors the microinverters that are connected to the PV modules. It collects energy and performance data from the microinverters over on-site AC power lines, and it forwards that data to
Enlighten, via the Internet, for statistical reporting.
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 Microinverters and Enlighten. The Enphase
Enlighten web-based monitoring and analysis software analyzes the data collected by each communicating microinverter. Enlighten automatically detects any shortfall in energy production, identifies possible causes, and suggests solutions. Enlighten constantly monitors every Enphase Microinverter connected to the Envoy-
S and is essential for system monitoring and troubleshooting.
Enlighten provides a wide range of information on system performance. You can even access Enlighten on your mobile device and view current performance information wherever you are.
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Installation Planning and Preparation
Installation and operation of the Envoy-S require 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 individual microinverters using the site’s power lines and in the Engage Cable.
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
To Internet
Router
POWER LINE
COMMUNICATIONS
NETWORK
COMMUNICATIONS
Pre-installation Checks
Review the following pre-installation checks before you install the Envoy-S.
Plan the Power Connection
Before installing the Envoy-S, make sure that the site has either a standard AC outlet available near the load center or subpanel in which the Envoy-S can be hardwired. Do not use a power strip.
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Plan the Internet Connection
To use the Enlighten web-based monitoring and analysis software, additional requirements 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 5 or higher, Firefox 11 or higher, Internet Explorer (IE) 9 or higher, or Safari 5 or higher
Download the Installer Toolkit
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 4.2 or later, or
An iOS device running iOS 7.0 or later, specifically an iPhone 4 or later or an iPod Touch 5th generation
Enphase Installer
Toolkit mobile app
Metering Considerations
To install the production CT
Ensure there is sufficient room to install the production CT around line 1 of the solar PV disconnect.
Do not install the CTs in a panel where they exceed 75% of the wiring space of any crosssectional area within the panel.
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.
Do not install the CTs in a panel where they exceed 75% of the wiring space of any crosssectional area within the panel.
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
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Required Items
If you hard-wire the Envoy-S, you must install it in a non-metallic NRTL certified NEMA type 3R (or better)
enclosure with conduit attachment. 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 (802.3, Cat5)
System Metering Options
The Envoy-S monitors up to 600 Enphase Microinverters and 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
Standard PV production monitoring (+/- 5%).
AC power cord
Envoy-S Metered
ENV-S-AM1-120
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: When you 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 as directed by the installation manuals.
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.
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Installation Sequence
1. Choose a location for the Envoy-S
Envoy-S Installation and Operation
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
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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
LEDs and buttons
Terminal block
Ethernet port
USB ports
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1. Choose a Location for the Envoy-S
a. Install the Envoy-S at the subpanel or as close to the load center or PCC (Point of Common
Coupling) 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 space (such as a garage, attic, basement, or other cool, dry location) and, if the Envoy-S is hard-wired, you must also install it inside a non-metallic NRTL certified NEMA type 3R (or better) enclosure with conduit attachment.
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) does not include an AC power cord, and you must hardwire it.
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 indoors and close to the load center or PCC.
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). The surge suppression or filtering within these devices impedes power line communication performance. Also, if possible, do not plug
AC inlet
Shutter 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.
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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 non-metallic, NRTL certified NEMA type 3R-rated
(or better) enclosure with conduit attachment.
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 beginning wiring.
a. Use a 15 A maximum circuit breaker for the supply wiring.
b. Make sure supply wiring is 14 AWG rated at 75 degrees 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.
- Connect Line 1 to A
- Connect Neutral to N
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Provide Power for the Envoy-S Metered (ENV-S-AM1-120)
The Envoy-S Metered (ENV-S-AM1-120) 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, non-metallic, NRTL certified NEMA type
3R-rated (or better) enclosure with conduit attachment.
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 beginning wiring.
a. Use a 15 A maximum circuit breaker for the supply wiring.
b. Make sure supply wiring is 14 AWG rated at 75 degrees 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.
Tighten terminal block screws to 5 in-lbs.
- Connect Line 1 to A
- Connect Line 2 to B
- Connect Neutral to N
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3. Install CTs for Metering (Model ENV-S-AM1-120 only)
The Envoy-S Metered (ENV-S-AM1-120) requires the use of UL Listed Energy-monitoring CTs to provide revenue grade production metering and to provide (optional) consumption metering. Wire it for revenue grade production metering and for consumption metering (optional) as described in this section. 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.
Install the CT for Production Metering
DANGER! Risk of electrocution! CTs must be installed with no current flowing in the sensed circuit. Do not energize the sensed circuit until the CT leads are installed in the terminal block.
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 beginning wiring.
a. Use only the CT that came with the Envoy-S.
It is marked with the same serial number as the Envoy-S.
b. Locate the arrow on the CT label.
c. Install the CT on Line 1 (matching Envoy’s “A” voltage terminal) of the solar production circuit with the arrow pointing towards the breakers.
d. Connect the white wire to the “IA•” terminal.
e. Connect the blue wire to the “IB•” terminal.
f. Tighten the terminal block screws to 5 in-lbs.
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Install CTs for Consumption Metering (Optional for Model ENV-S-AM1-120)
Install two split-core CTs (order two CT-200-SPLIT) to provide consumption metering. Create a protected route with conduit for the CT wires from the main load center to the Envoy-S.
DANGER! Risk of electrocution! CTs must be installed with no current flowing in the sensed circuit. Do not energize the sensed circuit until the CT leads are installed in the terminal block.
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, it is a best practice to always deenergize 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.
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.
e. Install 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 breakers. Unlatch the CT, place Line 1 in through the opening.
Latch the CT and listen for the click as it closes.
f. Install 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 breakers. Unlatch the CT, place Line 2 in through the opening. Latch the CT and listen for the click as it closes.
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 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
NEC 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.
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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 Microinverter Communications LED flashes amber indicating that that microinverters are not yet detected.
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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. Create the arrays and scan the serial numbers from the installation map as instructed by the Installer Toolkit Operation
Manual at enphase.com/support .
f. Tap the Connect button. This provisions the scanned microinverters on the Envoy-S.
g. When prompted, confirm the number of microinverters that you installed.
NOTE: 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
h. The Microinverter Communications LED
lights solid green if all of the provisioned devices are communicating or solid amber if any devices are not communicating.
LED lights solid green when the network is available.
On the Envoy-S, if the AP
Method B: Discover Microinverters with Installer Toolkit
a. Use the Installer Toolkit mobile app to set the number of microinverters the Envoy-S should search for on the power line.
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.
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).
d. When prompted, enter the number of microinverters that you installed.
e. When prompted to start a device scan, tap OK.
The Microinverter 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.
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 Microinverter 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 Microinverter Communications LED remains solid,
see “Microinverter Detection Issues” on page 34.
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6. Verify System Configuration
While still connected to Envoy-S with Installer Toolkit, check the Envoy Overview screen for the following:
a. Confirm that the expected number of devices are discovered, communicating, and producing power.
b. If your system is in Hawaii or in another region that does not use the Factory-Installed Grid Profile, tap the Grid Profile row on the Envoy Overview screen to select and apply a grid profile to the microinverters. On the Envoy Overview screen, check that the new 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):
Tap the Meters button and check that Production Metering is enabled .
If you installed consumption metering CTs, tap the > to the right of Consumption Meter.
If the consumption CTs are on a circuit that solar production flows through, leave the type set to Net, If not change the type to Total.
Tap Enable Consumption Meter.
Return to the Overview screen and verify the meter reading(s).
WARNING! If using consumption metering, be sure to set the meter type correctly. You cannot change this setting once the meter is enabled.
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 35.
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 upgrade 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 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.
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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 then tap your network from the list of available networks. 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
Method B: Enphase Mobile Connect
(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.
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. In the box with the Envoy-S is 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 an Ethernet cable with unshielded twisted pairs (UTP) and suitable ratings for its environment.
b. Open the latch of the ferrite bead and remove it from the included cable, keeping the latch facing up.
c. Place the bead on the new cable, near one end, and close the latch.
d. Plug the cable end with the ferrite into the Envoy-S Ethernet port.
Secure a tie wrap on the cable on each side of the ferrite bead.
Tighten an additional tie wrap around the ferrite bead.
Trim any tie wrap excess.
e. Plug the other end of the Ethernet cable into a spare port on the broadband router.
Within two minutes the Network Communications LED lights solid green, indicating a successful connection to the Internet and to Enlighten.
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When you use Ethernet cable, two small LEDs on the Ethernet port indicate Ethernet link and activity. The link LED is solid green when the cable is connected correctly, and the activity LED flashes green or yellow when data is sent or received.
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 communicat e 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 that the Envoy-S is using.
b. Place the bead on the cable, near one end, and close the latch.
c. Plug the cable end with the ferrite 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 into 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
After using any of these connection methods, if the Envoy-S does not connect to the Internet within five to ten minutes after you attempt a connection,
see “Internet Connection Issues” on page 36.
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. For more information, refer to the Enphase Installer Toolkit Operation
Manual at: enphase.com/support .
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Activate Monitoring
Register the Envoy-S for monitoring of the Enphase Microinverters in Enlighten at enlighten.enphaseenergy.com
. Once you have registered the system and successfully installed the Envoy-S,
Enlighten sets up an account for the site owner. When you complete the registration and installation,
Enphase sends account information to the site owner so that they can 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.
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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.
— Microinverter Communications LED: Green when microinverters are communicating with Envoy-S.
— Device Scan Button: Press to start/stop 15 minute scan for microinverters over the power line.
Envoy-S LED States
LED
All
Network
Communications
AP mode
Power production
Microinverter
Communications
State Description
Flashing amber in unison The Envoy-S is booting up
Flashing green sequentially Software upgrade in progress
Solid green
Flashing green
Solid amber
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
Solid green
Off
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 upgrade 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)
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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 are flashing amber. If the Envoy-S retrieves a software update soon after connecting to the Internet, the LEDs flash green sequentially during the upgrade.
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 upgrade 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 Microinverter Communications States
A detected microinverter is one that has been discovered via the Envoy’s device scan or provisioned via
Installer Toolkit or Enlighten.
The states of the Microinverter 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
Green Solid
Amber Solid
All discovered devices are communicating.
The expected number of devices was discovered and all are communicating.
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).
All of the provisioned devices are communicating.
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.
1. Press the Device Scan button. The Envoy-S begins a 15-minute scan to identify all of the microinverters deployed at the site. The Microinverter Communications LED flashes green during the scan.
2. Log into Enlighten to check for the new microinverter, and use Array Builder to add the new microinverter to the virtual array.
3. After the microinverter is detected, it is best to disable the scan. To do this, press the Envoy-S
Device Scan button again.
Alternatively, you can initiate a scan using Installer Toolkit. For more information, access the Installer Toolkit help topics on your mobile device.
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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
If there is no wireless LAN onsite, you can use the Envoy to create a wireless Access Point (AP). The
Envoy-S uses its built-in Wi-Fi functionality to do this. AP mode supports use of a mobile device and times out after eight hours. When the Envoy-S starts up, it initiates an 8-hour AP (access point) session on the
Envoy-S. 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 another AP session after the initial 8-hour session has completed:
1.
To create a wireless access point on the Envoy, 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
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2. 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.
3. 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.
1. Tap anywhere on the row containing the Envoy serial number or tap Connect at the bottom of the
System Overview screen.
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2. 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, if one is in progress.
Refer to enphase.com/installer-toolkit/ for more information on the Enphase Installer Toolkit.
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Connect Remotely Using Enlighten
To check status of Enphase equipment, do the following:
1. Log on to Enlighten to view the array. Click Devices.
2. 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.
3. To view status information for the Envoy, click the Envoy serial number.
4. This screen indicates status for web communication, power line communication and microinverter count.
5. 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, select Low-Bandwidth reporting mode. 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 15 minutes during daylight hours.
6. 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.
7. 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:
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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.
1. Use the
Envoy’s built-in Wi-Fi or connect an Ethernet cable between a computer and the Envoy-S.
2. Open an Internet browser application on a computer or mobile device connected to the same LAN as the Envoy-S.
3. In the browser address window, enter http://envoy.local to view system details and status.
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 is equipped with a revenuegrade production meter and readings from this meter are displayed. 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.
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)
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View Cellular Connection Information
When the Envoy-S is using the Mobile Connect modem to connect with Enlighten, select > to view Cellular
Configuration information.
View or Change Ethernet Settings
When the Envoy is using 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.
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View or Change Wi-Fi Settings
When the Envoy is using 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.
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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.
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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.
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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
). Warranty void if cover removed. Refer servicing to qualified personnel.
Microinverter Detection Issues
Troubleshoot power line communication issues as follows.
Issue: Microinverter Communications LED is Solid Amber
If the Microinverter 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 issue may be that the Envoy is 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 that the PV module voltage is too low for the microinverter to power up. 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, make sure that the Envoy is plugged directly into the wall and
not into a power strip or surge protector. Unplug any other device that is sharing the outlet with the Envoy. Or, as an alternative, 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.
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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.
As an alternative 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.
Issue: Installer Toolkit Indicates that Scanning is Inhibited
This state occurs after an installer has used the Installer's Toolkit to provision the Envoy. It is best to leave the Envoy in this condition for normal operation. If you need to re-enable scanning (for example, if you replace a microinverter) contact Enphase Customer Support ( [email protected]
).
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 upgrade is in progress, flashes amber when microinverters are not yet detected, or becomes solid amber when any microinverter that is expected to produce is not. Check in 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 utility. Next, check the breaker and wiring, starting at the load center.
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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 startup 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.
Refer also to “Microinverter Detection Issues” on page 34 because the microinverters will not
report production if they are not communicating with the Envoy-S.
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 [email protected]
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. One LED will be solid green, and the other will blink every few seconds.
Issue: Network Communications LED is Amber or Off
When the Envoy first boots up, it is configured to perform a DHCP broadcast, requesting 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 as well. This is the usual source of IP addresses for network hosts (computers, laptops, and the Envoy). 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.
For any connection method, you can troubleshoot network issues with 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 show solid green.
When using the 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 the LEDs are not both on or 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.
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Issue: Wi-Fi Problems
If the Network Communications LED remains off:
If the Envoy is installed in an enclosure, that enclosure must be non-metallic to allow wireless communication. Metal enclosures 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 Connection Status
“Not Connected”
If 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.
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 29.
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.
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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-S.
MAC Filtering
Check to see if MAC filtering is in use at the site. This has nothing to do with Apple Macintosh computers, but rather, refers to the MAC (Media Access Control) address that each individual network card possesses. The
MAC Address is a 48-bit address, which uniquely identifies that piece of hardware. MAC filtering is a security mechanism by which routers allow administrators to specify which devices can use the router for access to the Internet. This prevents unauthorized/unknown personnel from using the router to get to the Internet.
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:
Direction Source Protocol Port Destination
OUT
OUT
<Envoy IP address>
<Envoy IP address>
TCP
UDP
80
80 reports.enphaseenergy.com ping-udp.enphaseenergy.com
OUT <Envoy IP address> TCP 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.
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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 [email protected]
.
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 lists 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.
”
Method 2: Send the clear message using the Installer Toolkit. On the list of detected microinverters, there is a green dot or red square 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.
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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 [email protected]
.
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 lists 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.
”
Method 2: Send the clear message using the Installer Toolkit. On the list of detected microinverters, there is a green dot or red square 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 GFI tripped condition, tap the to send the clear message to the affected microinverter.
The app then indicates that a clear message was sent.
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Replacing an Envoy-S
If problems remain after following the troubleshooting steps above, contact Enphase at [email protected]
.
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
).
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. Do not energize the sensed circuit until the CT leads are installed in the terminal block. 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.
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 with AC Power Cord (Model ENV-S-AB-120-A)
1. Disconnect the Ethernet cable (if used) and power cord from the old Envoy-S.
2. When the replacement Envoy-S arrives, power it
as described in “2. Provide a Power
3. 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 upgrade from Enphase. Because this upgrade may take up to 15 minutes, connect the Envoy-S first at the site (connect to both AC power and the broadband router) so that it performs the upgrade well before the solar module installation is complete.
During upgrade 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 upgrade is in progress.
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4. Connect the Envoy-
S to Enlighten as described in “7. Connect to Enlighten” on page 19.
5. Verify that the new Envoy-S Network Communications LED lights green within five minutes. If
not, follow the network troubleshooting steps on page 36.
6. 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.
7. 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 24.)
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 [email protected]
for assistance in this situation.
8. 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.
9. Contact Enphase Support at [email protected]
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. Do not energize the sensed circuit until the CT leads are installed in the terminal block. 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.
1. Turn off the circuit breaker supplying Envoy-S.
2. Disconnect the L1, L2, L3 (if used) and Neutral wires from the old Envoy.
3. Disconnect the Ethernet cable (if used).
4. Turn off the circuit breaker supplying the microinverters.
5. Disconnect the production CT.
6. Unlatch the split-core of the consumption CTs (if used) before disconnecting. Once the CTs are unlatched, remove them from the sensed wires.
7. Inspect the CTs for damage. If they are damaged, you must order another pair (order CT-200-
SPLIT).
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8. When the replacement Envoy-S arrives, install the Envoy-S and provide power as described in
“2. Provide a Power Connection” on page 12.
9. Install the new production CT and replace the consumption CTs (if used) as described in
Install CTs for Metering (Model ENV-S-AM1-120 only)
10. 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 upgrade from Enphase. Because this upgrade may take up to 15 minutes, connect the Envoy-S first at the site (connect to both AC power and the broadband router) so that it performs the upgrade well before the solar module installation is complete.
During upgrade 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 upgrade is in progress.
11. Connect the Envoy-S to Enlighten as
described in “7. Connect to Enlighten” on page 19.
12. Verify that the new Envoy-S Network Communications LED lights green within five minutes. If
not, follow the network troubleshooting steps on page 36.
13. 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.
14. 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 24.)
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 [email protected]
for assistance in this situation.
15. 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.
16. Contact Enphase Support at [email protected]
to have the new Envoy-S added to your system and to retire the replaced Envoy-S.
17. Ship the old Envoy-S to Enphase using the supplied RMA shipping label.
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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
Recommended Action: No action is required unless the condition persists.
ACFreqChangeTooFast
(AC Frequency Changing
Too Fast)
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.
AcFrequencyOOR (AC
Frequency Out Of Range)
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 or refer to the Troubleshooting
Guide at enphase.com/support .
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 enphase.com/support .
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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
DcPowerTooLow
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 or refer to the Troubleshooting
Guide at enphase.com/support .
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 [email protected]
.
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 [email protected]
.
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Message Shown on
Events and Inventory
Screens
Description
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 [email protected]
.
DcVoltageTooHigh
DcVoltageTooLow
DownloadBegin (Download to module begun)
DownloadEnd (Download to module ended)
DownloadFail (Download to module failed)
Envoy Stopped
FilesystemAuditFailure
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. The Enphase M250 and M215 are compatible with most 60-cell modules. The M190 and D380 are compatible with many 60- and 72-cell modules.
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 or refer to the Troubleshooting Guide at enphase.com/support .
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 or refer to the Troubleshooting Guide at enphase.com/support .
If this event occurs and clears daily or often during hours of full daylight, check that the PV module and microinverter are compatible. The M215 and M250 are compatible with most 60-cell modules.
Description: The Envoy has started a software upgrade 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 upgrade to a microinverter.
Recommended Action: No action is required.
Description: The Envoy was unable to successfully deliver a software upgrade 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.
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Message Shown on
Events and Inventory
Screens
GfiTripped
GridGone
GridInstability
GridOffsetHi
GridOffsetLow
Grid profile application completed
Envoy-S Installation and Operation
Description
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 [email protected]
.
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 upgrade may be needed to help resolve this issue.
If the condition persists: If Grid Gone events persist, contact your installer or refer to the Troubleshooting Guide at enphase.com/support .
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 or refer to the Troubleshooting
Guide at enphase.com/support .
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 or refer to the Troubleshooting
Guide at enphase.com/support .
Description: The Envoy has completed a change to the grid profile for the microinverters. No action is required.
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Message Shown on
Events and Inventory
Screens
GwFailure (Gateway
Failure)
HardwareError
Description
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 or refer to the Troubleshooting Guide at enphase.com/support .
Recommended Action: Contact your installer to arrange for the installation of a replacement microinverter.
Description: A hardware failure has occurred that prevents power conversion.
IupLinkProblem
ModuleAdd
Microinverter failed to report
Microinverter grid configuration failed after 5 attempts, retrying
Microinverter grid configuration failure cleared after xx attempts
ModSleep
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 [email protected]
for a software upgrade. If the D380 does not respond to the upgrade, it will need to be replaced.
Description: The Envoy has detected and is now associated to a new microinverter.
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 34, or contact your installer, or refer to the Troubleshooting Guide at
enphase.com/support .
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.
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Message Shown on
Events and Inventory
Screens
No Grid Profile
Description
OverTemperature
PwrGenOffByCmd (Power generation off by command)
PowerOnReset
RGM Error
RGM Power Quality
Warning
Shutdown
Startup
Tpm Profile Inverter
Incompatible
Transient Grid Profile
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.
Recommended Action:
The microinverters may need to have a software upgrade 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 upgrade 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 upgrade.
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
) .
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.
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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 12 kW. (Available in the US, Canada, Mexico, Puerto Rico, and the US
Virgin Islands, 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
Hard-wired to subpanel
Relay contacts
CT leads
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
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 rated to 75 degrees C or better, and it must be protected by a max 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 Up to 600
Mechanical Data
Dimensions (WxHxD)
Weight
Environmental Data
Ambient temperature range
Relative Humidity
Environmental rating
Altitude use
Cooling
21.3 x 12.6 x 4.5 cm (8.4” x 5” x 1.8”)
17.6 oz. (498 g)
-40° to 65° C (-40° to 149° F)
-40° to 46° C (-40° to 115° F) if installed in an enclosure
95%
IP30. For installation indoors or in an NRTL-certified, NEMA type 3R enclosure
To 2000 meters (6560 feet)
Natural convection
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Internet Connection Options
Integrated Wi-Fi 802.11b/g/n
Ethernet 802.3, Cat5 Ethernet cable (not included)
Optional, CELLMODEM-01 (not included) Cellular
Measurement Circuit
Voltage
Current
Measurement Circuit
Metering options
CSI Eligibility
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 (pending).
Model ENV-S-AB-120-A: Standard reporting; Accuracy +/- 5.0%
The Envoy-S is included in the List of Eligible System Performance Meters for the
CSI program (pending).
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) (pending).
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2015 Enphase Energy Inc. 141-00027 Rev 01
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Key features
Collects energy and performance data from the microinverters over on-site AC power lines
Forwards that data to Enlighten, via the Internet, for statistical reporting
Monitors the microinverters that are connected to the PV modules
Communicates with the individual microinverters using the site’s power lines and in the Engage Cable
Maintains an internal database of all known Enphase Microinverters at the site it manages
Polls each microinverter for its energy data
Reports any error conditions that affect it or the microinverters
Available in Standard and Metered versions
Frequently asked questions
The Envoy-S is a communication gateway for Enphase Microinverter Systems, it collects energy and performance data from the microinverters and sends it to Enlighten, Enphase's web-based monitoring and analysis software.
The Envoy-S communicates with microinverters over the site's AC power lines. It also uses an internet connection to send data to Enlighten.
The Envoy-S Standard and Envoy-S Metered are both communication gateways for Enphase Microinverter Systems. The Envoy-S Metered version includes integrated revenue-grade PV production metering and optional consumption monitoring. The Envoy-S Standard provides standard PV production monitoring.
