SolarEdge - Frankensolar
Distributed Solar Power Harvesting Systems
Installation of the SolarEdge System
©2013 SolarEdge
SolarEdge System Overview
Module level optimization
Fixed voltage – flexible design
Power Optimizer
Module level monitoring
Enhanced safety solution
Module add‐on
Monitoring Portal
Monitoring Server
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Fixed String Voltage
String voltage is always fixed, regardless of temperature and of string length
Constraint free design
Longer strings: reduces wiring & BoS components
Flexible design for maximum roof utilization:
̶ Parallel strings of unequal lengths ̶ Modules on multiple roof facets
̶ Modules with different power ratings String voltage is always optimal for DC/AC conversion
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Installation Workflow
Mount & connect the Optimizers
Record the Serial Numbers
Mount & connect the Inverter
Activate the Installation
Connect to the SolarEdge Server
Commission and Configure the Inverter
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Mount and Connect the Optimizers
Mount & connect the Optimizers
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SolarEdge Power Optimizers
Per‐module Maximum Power Point Tracking (MPPT) 99.5% maximum efficiency
Automatic module shutdown for installer /firefighter safety
Connected by installers to c‐Si and thin‐film modules
No Equipment Grounding Conductor required
Zep Compatible™ version available
MC4, Amphenol, Tyco, Radox input connectors
300, 350, 400, 600W Module add‐on
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SolarEdge OP Series Optimizers
Input Power
300 W
350 W
400 W
600 W
Voltage Range
8 – 48 Vdc
8 – 60 Vdc
8 – 80 Vdc
12.5 – 96 Vdc
Cell Count
60, 72 72, 96
2x 60
PV Module Isc
10 Adc
10 Adc
10 Adc
10 Adc
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Mounting the Power Optimizers
Determine the mounting location of each power optimizer
Attach the Optimizer to the racking in close proximity to the PV Module location
The Power Optimizer can be installed in any orientation
At least 1” between the and roof, optimizer and PV Module
Do not leave unmated Optimizer connectors exposed to the elements. The Power Optimizer is waterproof when the input and output cable connectors are mated.
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Mounting the Power Optimizers
Use 1/4” or 5/16” mounting hardware, appropriate for the racking rail, verify secure attachment.
Use both mounting holes to attach each power optimizer to the racking
Install the 5/16” stainless steel star washer included with the optimizer behind the flat mounting tab surface
Mounting Hole
Star Washer
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Grounding the Power Optimizers
SolarEdge Power Optimizers only require equipment grounding Equipment grounding of the power optimizers can be accomplished using one of two methods as outlined in the SolarEdge installation manual. 1. Mounting to grounded racking where the star washer contacts the rail
Use the 5/16'' stainless steel grounding star washer
(provided with the power optimizer) between the
rail and the flat side of the mounting bracket
Unirac Solarmount
IronRidge XRL, XRS
More examples in the Grounding SolarEdge
Optimizers app note
Star Washer
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Grounding the Power Optimizers
2. Mounting on rails with sliding nut fasteners or non‐metallic structures A separate Equipment Grounding Conductor is required for power optimizers mounted on non‐metallic structures and structures utilizing sliding nut fasteners (ground lugs may be purchased in bulk from SolarEdge, part number SE‐GNDLUG‐100) ProSolar
More examples in the Grounding SolarEdge
Optimizers app note
Attachment of the grounding lug
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Connecting Optimizers in Strings
Connect the Plus (+) connector of the output wire of the first power optimizer in the string to the Minus (‐) connector of the second power optimizer in the string. Repeat for each power optimizer in the string. Verify Plus (+) and Minus (‐) connector cables are firmly inserted.
Cutting the power optimizer’s input or output cable connectors is prohibited, and will void its warranty.
Fasten any excess wire to the racking with tie‐wraps or cable clips
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Array Home Runs
Combining Strings at the array
̶ No fusing required if 2 strings or less
̶ Running individual strings to the inverter allows for troubleshooting at ground level Conduits
̶ Metal conduit required whenever DC wiring enters a building
̶ Flexible metal conduit or liquidtight conduit allowed
Wire Types
̶ All exposed PV wire must be double insulated PV wire
̶ Installers typically transition from PV wire to building wire (THWN‐2 or similar) and conduit for the run from the roof to the inverter
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System Labeling
ΠMaximum Voc
Typically 420 Vdc, Inverter Max voltage rating = 500 Vdc
ΠOperating Voltage
Approx. 350 Vdc for 240 Vac grid connection, 325 Vdc for 208 Vac, 400 Vdc for 277 Vac, 850 for 480 Vac
ΠMaximum Isc
15 amps per string, max input rating of the inverter
ΠOperating Current
Total STC power rating / DC operating voltage ©2013 SolarEdge
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Record the Serial Numbers Record the Serial Numbers
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Recording Installation Layout – Labels
Option 1
Peel off and place the power optimizers’ detachable 2D barcode labels on this physical mapping template form or use your own design
Scan the complete form and send it to SolarEdge via web /email
Site registration link:‐web/p/login
E‐mail: US/Canada:
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Recording Installation Layout – iPhone App
Option 2
Use the iPhone Site Mapper app to create a site physical mapping
The app is available on the App Store for free
Manual and video demonstration available at: ©2013 SolarEdge
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Define Site Dimensions
Choose number of module groups and layout
Review and rearrange layout
Scan the barcodes using the iPhone’s
camera. Email to SolarEdge when done
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Connecting the PV Modules
Connect each PV Module to power optimizer inputs
As long as the optimizers are not connected to the inverter or the inverter is OFF, the optimizers will output a 1 Vdc safe voltage.
Note: The power optimizer has reverse polarity protection. Even so, verify the correct polarity by checking the PV module’s polarity with a voltmeter. ©2013 SolarEdge
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Safe Voltage ‐ Verification
Connect a voltmeter with at least 0.1V measurement accuracy to the string outputs and verify:
The voltage equals the number of power optimizers in the string
Verify each string individually before proceeding
̶ SafeDC Voltage
̶ Correct polarity Note: modules should be exposed to sunlight during verification
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Mount & Connect the Inverter
Mount & connect the Inverter
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SolarEdge Single Phase Inverters
CEC efficiency – 97% @208 Vac, 97.5% @ 240 Vac
Operating temperature range ‐20⁰ C to +60⁰ C
Canadian Version ‐40⁰ C to +60⁰ C
Built‐in communication hardware
Wireless inverter connectivity (optional)
Integral AC/DC Safety Switch
3.0 kW, 208, 240 Vac
3.8 kW, 208, 240 Vac
5.0 kW, 208, 240, Vac
6.0 kW, 240, Vac
7.6 kW,
10.0 kW,
11.4 kW,
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SolarEdge Commercial Inverters
Fixed voltage inverters specifically designed for installations with power optimizers
CEC efficiency: 97.% @ 208 Vac, 98% @ 480 Vac
Small, lightweight, less than 80 lbs
Built‐in communication hardware
Wireless Inverter Connectivity (optional)
Integral AC/DC Safety Switch
20kW, 10kW @480 Vac 3‐phase
9kW @208 Vac 3‐phase
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Unified Inverters ‐ Packaging
Cut around the bottom of the box –
near the tape
Lift the box – inverter remains vertical on the base
Remove the mounting bracket and top and side Styrofoam
Mount the bracket
Lift the inverter from the base onto the bracket
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Inverter Overview
ON/OFF Switch: Turning this switch ON starts the operation of the power optimizers, enables power production and allows the inverter to begin exporting power to the utility grid. Inverter DC and AC inputs: will be connected to the DCD
LCD Button: Pressing this button lights up the LCD for 30 seconds. ̶ In addition, press this button to access configuration menu options
Communication Glands: Ethernet (LAN), RS485, ZigBee . ̶ Used to connect the inverter to the SolarEdge Monitoring Portal. ̶ Accepts different diameter communications cable and zigbee antenna. DC Input
ON/OFF Switch
LCD Button
Sealed Gland (reserved)
AC Output
Communication Glands
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Mounting the Inverter
The inverter’s mounting bracket can be attached to a wall or a pole
Clearance area is needed for heat dissipation:
8” to the top and bottom
4” to the right and left
The U‐shaped groove of the bracket should be positioned on the top
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Mounting the Inverter Hang the Inverter on the Bracket ̶ Hang the inverter on the top 2 screws
̶ Lay the inverter on it’s back and sides only
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Mounting the Inverter
Insert screws into the bottom heat sink fins ̶ Allow chassis to lie flat
̶ Insert screws into the right
and left sides of the lower heat sink ©2013 SolarEdge
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The AC/DC Safety Switch
Manually operated switch that opens the AC and DC circuits
Attaches to the bottom of the inverter
Opens all ungrounded conductors in compliance with the National Electric Code and specifically NEC article 690.35
Cover Screws
Cover Screws
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Installing the AC/DC Safety Switch
Make sure the switch is in the OFF position, and remove the switch cover
̶ Use a 5mm Allen screwdriver to open the 4 screws on the front of the cover
Open the AC and DC conduit knockouts
̶ The switch has knockouts at the bottom, back and sides, each with two sizes: ¾'' and 1''. ̶ Open the necessary pair. A Unibit drill may be used.
Use the supplied mounting template to mark the drilling positions
Drill the holes and screw the bracket to the wall or pole
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Connecting the DC&AC to the Switch
DC +
DC ‐
Equipment grounding terminal
Wiring legend
Neutral, Ground, L1, L2
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Installing the DCD Safety Switch
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Three Phase DCD Connections
AC/DC Safety Switch for Three Phase Inverters ©2013 SolarEdge
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Three Phase DCD Connections
AC/DC Safety Switch for Three Phase Inverters ©2013 SolarEdge
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Using the Spring‐clamp Terminals
Use a standard straight‐bladed screwdriver to connect the wires to the spring‐clamp terminals:
̶ The screwdriver blade should fit freely in the terminal opening. Too large a blade can crack the plastic housing
̶ Insert the screwdriver and tilt it to press the release mechanism and open the clamp
̶ Insert the wire 15mm / 0.6" deep into the side opening
̶ Remove the screwdriver – the wire is automatically clamped
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Inverter is non‐isolated or transformer‐less
DC inputs are ungrounded
Only need to satisfy equipment grounding per NEC article 690.43
Optimizers should be grounded as described in previous slides
Inverter equipment grounding conductor sized per NEC article 250.122
Conductor should be connected to the equipment grounding terminal located in the AC/DC Safety Switch No continuous DC Grounding Electrode Conductor required by NEC article 250.166
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Activate the Installation
Activate the Installation
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Inverter Activation
Activation process is done to configure specific country settings as grid thresholds, language, etc. according to the inverter installation destination.
Before turning on the inverter it needs to be activated
Activation ensures correct firmware and country setting based on the part number.
Remove the SD card from the box in which it is supplied
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Inverter Activation
Verify that the serial number on the card matches the inverter serial number
Insert the SD card into the designated slot located on the back of the inverter communication board
The slot is indicated by a label:
Turn on the AC at the site
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Inverter Activation
The LCD will indicate when activation is taking place and when it is completed
Do not press the inverter buttons during activation
The SD card may be left in the inverter after activation
You can also activate the inverter using an activation code provided by our support team – 877‐360‐5292
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Commission & Configure the Inverter
Commission and Configure the Inverter
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Commissioning the Installation
Close the inverter cover
Tighten the 6 Allen screws in the recommended order
Final commissioning steps:
Pairing Power Optimizers to the Inverter
Verifying Proper Operation
Reporting and Monitoring Installation Data
CAUTION: After pairing, the inverter will discontinue SafeDC and will ramp to fixed voltage. It will also begin producing AC power – all covers should be installed prior to pairing.
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Pairing Process
This process “pairs” the power optimizers to the inverter
Follow this process during the initial install, and if string configuration changes or power optimizers are added, removed or replaced
Turn the AC/DC safety switch to the on position
Press and hold the inverter LCD Light button for about 10 sec. K
e p h o l d i n g b
r p a i r i n g , r e
e n t e r m e n u m a i n i n g : u t t o n
l e a s e
. . .
3 s e c
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Pairing Process (2)
Continue to hold for 5 more seconds to enter the pairing mode
Turn the inverter ON/OFF switch to ON within 5 seconds.
After turning the switch to ON the pairing process will start
T u r n S w i t c h To O n Pairing
Remaining [Sec]: 104
Pairing Completed ©2013 SolarEdge
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Power Production Verification
Verify proper production:
Vac [v] indicates the measured grid AC voltage
Vdc [v] indicates the DC input voltage:
Should be between 300 V and 400 V for 240 Vac grid connection
Pac [w] on the LCD Panel specifies the current AC output power produced
P_OK indicates optimizers that have sent telemetries
S_OK appears, if the inverter is connected to the SolarEdge Monitoring Server
ON/OFF indicates the position of the ON/OFF switch Va c [ v ] Vd c [ v ] Pa c [ w ]
240.7 351.2 3159.3
P _ OK: 022/022 < S _ OK >
ON ©2013 SolarEdge
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Connect to the SolarEdge Server
Connect to the SolarEdge Server
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Communication options Accessory
Comm. between inverter and monitoring server
Comm. between multiple inverters
300 ft
3200 ft
150 ft
ZigBee gateway,
available from SolarEdge
Distance to receiver
Additional requirements
* Default Option
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Ethernet Connection – Multiple Inverters
Ethernet cables are used to connect inverters to the SolarEdge Monitoring Portal through an Ethernet router.
CAT5 or CAT6 Ethernet cable up to 300 ft. per inverter
LAN preconfigured by default Ethernet cable (CAT 5/6)
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RS485 Bus Communication Multiple inverters through the same RS485 bus in a master/slave configuration. Only the master is physically connected to the internet through the Ethernet port.
Four conductor twisted pair cable: up to 3200 ft. Slaves are preconfigured by default
Terminated Terminated Terminated ©2013 SolarEdge
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ZigBee Communication – Single Inverter
Wireless solution for residential houses with internet Single wireless inverter 800 ft line of sight / 150 ft typical residential Kit includes ̶ Gateway with Ethernet cable ̶ ZB Slave ̶ Power supply Up to 32 inverters can be connected to a single ZigBee bus.
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Communication – Cable Connectivity
Insert Ethernet, RS232 or RS485 through the cable glands
Crimp connectors or connect to terminal blocks (see next slides)
New Communication Board (terminal blocks)
Ethernet (8)
RS485‐1 (B, A G from left to right)
RS485‐2 (Not Used)
RS232 / Phase Balancer
(RX, TX, G from left to right)
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Cable Wiring – Ethernet
Use Ethernet cable, CAT 5/6 twisted pair
Connect the terminal wires according to the numbers signing
Router side: Connect all wires according to standard Use one of the large openings in gland 1 (bottom right image)
For communication boards with RJ45 connector (Type 1), use RJ45 plug. ©2013 SolarEdge
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Communication Status Screen
Use the status bits to identify your point of failure ̶ Go to the Communication Status screen with 7 short presses of the LCD button (from the main screen ) ̶ Look at the 8 bits from left to right, 1 is ok and 0 is fault 1st The Ethernet cable is not connected properly ‐ Check the cable pin‐out assignment and cable connection 2nd The DHCP IP is not configured properly ‐ Check the router and inverter configuration (your network might be using static IP ). 3rd Ping to the first hop switch/router failed ‐ LAN error
4th Ping to failed ‐ the internet connection is not operating
5th Ping to SolarEdge server #1 6th Ping to SolarEdge server #2 7th Ping to SolarEdge server #3 8th Communication with the SolarEdge server
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Cable Wiring – RS485 Use a four‐wire twisted‐pair cable
Use one of the openings in gland 2
DIP Switch for termination
DIP Switch
Use RS485‐1 port only for connecting BOTH inverters
Terminated Type 2 Communication Board
Terminated RS485‐1 RS485‐2 (B, A G from (Not Used)
left to right)
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RS485 Bus Communication‐settings
̶ Enter the Communication Menu
̶ Set Server to the relevant communication option (LAN , Zigbee , GSM)
̶ Select RS485 Conf
̶ Set protocol to RS485 Master
̶ Choose Slave Detect ̶
Using the up and down arrows choose YES and press Enter
Wait while the Master inverter detects the Slave inverters ©2013 SolarEdge
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ZigBee installation
ConnectPort X2 Kit with Antenna, Power Supply and Ethernet Cable
Connect the RF cable to the ZigBee card
Connect the antenna to the other end of the cable
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ZigBee installation
Insert the ZigBee card in its place on the communication board
Open the gland at the bottom of the Inverter and slide the antenna from the inside through the opened gland
Seal the gland. Screw the gland nut back on around the antenna. Turn the SolarEdge inverter AC power to ON. ©2013 SolarEdge
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ZigBee Settings
Enter Communication Menu Select Server
Set server to Zigbee
Enter the communication Menu
Select Zigbee Conf
> Set Protocol to P2P Slave
Exit setup by pressing ESC button
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ZigBee link Verification
Go to the Communication Status screen with 7 short presses of the LCD button.
Status < OK > will indicate connection with the X2 Gateway
< S_OK > will indicate connection with SolarEdge server ©2013 SolarEdge
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Control and Communication Gateway
Analog inputs accommodate a variety of environmental sensors including temperature, irradiance and wind
Extends the distance of wired connections
Wireless Connectivity ‐ ZigBee wireless connection option
Interfaces to non‐SolarEdge monitoring loggers
Revenue‐meter connection – Enables performance‐based incentive program eligibility
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Firefighter Gateway
Manual & automatic system DC shutdown Real‐time indication of system DC voltage for safety assurance
Emergency stop button for the entire PV system System shutdown notification to the SolarEdge Monitoring Portal Easy installation ‐ DIN rail mount
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Communication Scenarios
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Installation Workflow
Mount & connect the Optimizers
Record the Serial Numbers
Mount & connect the Inverter
Activate the Installation
Connect to the SolarEdge Server
Commission and Configure the Inverter
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Thank you
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