Locus Energy LGate 120 User manual

LGate 120
Installaon
Guide
Version 2.1

2
Table of Contents
Important Product Information 3
The LGate 120 Datalogger 4
Revenue-Grade Monitoring 5
Verifying Installation 7
Accessing Data on the Device 9
Inverter Direct Monitoring 12
SMA Sunny Boy 13
Power-One Aurora 15
Kaco Blueplanet 02xi 18
Fronius IG Plus 20
Emerson SPV 23
Eaton ISG PV 26
Additional Device Monitoring 28
Eaton Pow-R EVSE 28
LGate 120 FAQ 31

3
Important Product Information
DANGER – ELECTRICAL SHOCK HAZARD
!All installation and servicing on the LGate 120 and accompanying products should only
be performed by qualied personnel and only within the scope of these installation
instructions.
!Disconnect the LGate 120 from the power source (both the breaker to the LGate and
the AC disconnect) when servicing the product.
!The LGate is not intended for use in life-support applications.
Important Warranty Information
Removing or disassembling any part of the LGate 120.
The LGate 120 is backed by the Locus Energy, LLC Hardware Limited Warranty.
The following actions will void the warranty:
To obtain a copy of the Locus Energy, LLC Hardware Product Limited Warranty, please
have your head oce or program administrator contact your Locus Energy Account
Manager.
Breaking the tamper seal on the LGate 120.
Joining the RS485 or Ethernet cables to another conductor inside the meter socket.
Installing or operating the LGate 120 in any way not specied by this installation guide.
 Laptop
 Power drill
 Wire stripper
 Mounting screws
 Form 2S 200A meter socket
 Volt meter
 Ammeter / clamp meter
 Shielded twisted pair wire (for inverter
direct monitoring only)
 Gel-lled crimps (for inverter direct
monitoring only)
 Junction box (for inverter direct
monitoring only)
 Network cable crimper
 RJ45 heads (for Ethernet connection
only)
 CAT5 tester (for Ethernet connection
only)
 Additional CAT5 cable (for Ethernet
connection only)
Recommended Installation Tool-kit for the LGate 120

4
The LGate 120 Datalogger
RS485 / Modbus Wires
(as shipped)
RS485 /
Modbus Wires
Ethernet
Port
MAC ID
LCD
Screen

5
LGate 120
Revenue-Grade Monitoring
This section covers the installation of the LGate 120 revenue-grade core monitoring system.
This type of monitoring works with single-phase inverters and power sources up to 200A.
IMPORTANT: The LGate 120 does not ship with a meter socket included. For proper
installation, the LGate 120 meter must be mounted in an installer-supplied meter socket
that meets the following specications:
 Form Factor 2S
 Current rating of 200A or higher
 Voltage rating of 600VAC or higher
 All-weather rating (for outdoor installations)
!
Note: Conrm the installation has been performed correctly and to code before leaving the site.
1. Mounting the LGate Socket
Mount the meter socket (purchased separately) between the PV system and the electrical
panel. Run the AC lines from the combined inverter output through the meter socket -
line side to load side - and to the PV breaker on the electrical panel, then attach the
LGate 120 meter to the meter socket.
Ground the meter socket to the ground in the main panel.
L1 L2 G
N
L1
PV
Breaker
Utility PV System
Line Side
RS485 / Modbus
Connection
L1
L2
Form 2S 200A 600V MB
All Weather Enclosure
Ethernet
Connection
Main
Panel
L2
Note: If using a solar-dedicated subpanel, label the panel with “PV Loads Only” signage.
Note: If this installation does not require inverter direct monitoring, the RS485 / Modbus
Connection wires should be stored inside the meter base with the heat shrink cap left on.
Note: When installing the meter in the meter base and securing the meter base cover, avoid
pinching the RS485 / Modbus Connection and Ethernet Connection wires.
Load Side

6
2. Connecting to the Internet
The LGate 120 requires a network connection to communicate. The cell modem is the
primary method of communication; if there is no cellular reception or using the cell
modem is not an option, then use the secondary method, installing an Ethernet cable.
Note: Store the unused Ethernet cable inside the meter box with the coupler left on.
Note: Run the Ethernet cable in a separate conduit from power conductors, at least 1’ away.
Note: The LGate can hold up to 1.5-2 months of data without an internet connection. Please
ensure that the unit does not lose an internet connection for longer than 1.5 months to ensure
that no data is lost.
 Preferred Connection Method - Cell Modem
The LGate 120 comes installed with a cell modem. No additional conguration is
necessary for this method.
 Secondary Connection Method - Ethernet Cable
Connect the LGate to a DHCP router with a CAT5 Ethernet cable, as shown below.
Make sure this connection is continuous (i.e. the router is not regularly turned o).
LGate 120
L1 L2 GN
L1
PV
Breaker
Utility PV System
Main
Panel
L2
LAN
Connection
DHCP Network
Router or Switch
Max. patch cable
length: 300’
Note: If using the Ethernet connection, some additional conguration is required (see the
Enabling the Ethernet Connection section on page 10 for more information).

7
Verifying Installation
Verify proper installation of the LGate 120 using the steps below. The correct LED screen
conguration is marked with a symbol.
1. Power Connection
The LGate has initialized correctly.
The LGate doesn’t have power: Check the dedicated breaker and the
voltage at the meter socket.
The phone icon on the LED screen indicates the network connection of
the LGate 120.
2. Internet Connection
Solid phone icon: The last data packet was sent successfully.
Blinking phone icon:
1. Blinking quickly: The last data packet was not sent successfully but the cellular signal
strength (if applicable) is strong.
2. Blinking slowly: The last data packet was not sent successfully and the cellular signal
strength (if applicable) is weak.
No phone icon: The LGate 120 is not connected to the network. For an Ethernet cable
connection, double-check the pin-out on the Ethernet cable (see the FAQ section on page
31 for more information). For a cell modem connection, contact technical support to
troubleshoot.
3. Meter Placement Check
The arrow on the bottom right-hand side of the LED screen
indicates the direction of energy ow through the meter
socket, depending on the direction of the arrow.
Pointing toward the right (see image at right): The meter was installed correctly.
Meter Placement Arrow
Pointing toward the left: If the PV system is on and generating energy, the meter socket
was installed backward. Verify that the inverter wires running through the meter socket
go from line side to load side (top to bottom).
4. RS485 / Modbus Connection
The switch icon indicates if any RS485 / Modbus devices are connected.
If unsure whether inverter direct monitoring has been purchased for
this project, contact your company, lease provider, or program admin.
Switch icon is on: All external devices are communicating correctly (comm 1 or 2).
Switch icon is o: At least one of the external devices is not communicating OR the LGate
is not congured for external devices. Verify that all RS485 / Modbus connections are
wired and terminated correctly and that the external devices are addressed accordingly.

8
Energy (kWh) Reading
Power (kW) Reading
Current (A) Reading
5. Reading Verication
Check that the energy (kWh), power (kW), and current (A) readings that cycle on the LED
screen match the inverter output.
If power readings are negative, the meter socket was installed backward. Verify that the
inverter wires running through the meter socket go from line side to load side (top to
bottom).
6. Installation Conrmation
Contact your oce, program administrator, or lease provider to conrm the system is
connected.

9
Accessing Data on the Device
Every LGate 120 device comes loaded with updated software, which provides:
 More secure data transfer to SolarOS; and
 The ability to log into the LGate with a laptop to view conguration settings.
Logging into the LGate
1. Reset the LGate 120 by turning o the AC disconnect and breaker to the LGate for 30
seconds, then back on again.
2. Connect the LGate 120 directly to a laptop using the LGate’s Ethernet cable.
3. In a web browser, enter 169.254.12.13 in the address bar and select Enter (see below).
4. Use the password networkcong and select the Login button to enter the password-
protected menu (see below).
B
A
A
B

10
Enabling the Ethernet Connection
The LGate 120 comes precongured for a cellular connection. If the cellular option is not
possible, enable the Ethernet Connection by selecting false in the Cell Mode drop-down
menu and the Save Conguration button.
Selecting true (the default value) in the Cell Mode drop-down menu enables the cellular
connection.
Navigating the Password-Protected Menu
Once logged into the LGate 120, you can view the following information:
1. Basic information about the LGate: IP address, rmware type, and MAC ID (see below)
2. All devices sending data and their instantaneous data readings (see below)
3. Network settings: cell modem status, static IP address, proxy server, and compression
conguration options (see below)
A
BC
C
B
A

11
Setting a Static IP Address
The LGate can be congured for either a dynamic (DHCP) or static IP address (on a LAN
connection only).
 A dynamic IP address allows the router to assign the LGate 120 an IP address
automatically. If using the cell modem, the LGate can only use a dynamic IP address.
 A static IP address is a set IP address, used primarily for secured networks. This option
is only available for LAN connections.
A. To enable the dynamic IP address, select false in the Cell Mode drop-down list and
Enabled (default value) in the DHCP Mode drop-down list in the Network Settings section.
B. To congure the static IP address:
1. Select false in the Cell Mode drop-down list and Disabled in the DHCP Mode drop-
down list in the Network Settings section (see below).
2. Set the static address parameters: Static IP, Gateway, Net Mask, and DNS (see
below).
3. Set the proxy parameters: Proxy Address, Proxy Username, and Proxy Password (see
below).
4. Select the Save Conguration button.
5. Connect the LGate to the LAN.
6. Verify that the static address information is correct by checking that the phone icon on
the screen of the LGate 120 comes on (see page 10 for more information).
Record the static IP
address of the LGate 120
for future reference
A
B
C
A
B
C

12
Best Practices for All Inverter Direct Installations
 Use shielded twisted pair cable for all communication lines; using unshielded cable will
cause communication issues.
 Crimp all RS485 / Modbus wires outside of the meter base (i.e. in a junction box).
 Use one pair of twisted pair wires when wiring the RS485 / Modbus wires to the rst
inverter and from one inverter to the next in the daisy chain. This does not apply to
Fronius inverters.
(Note: The ground wire can come from any other twisted pair wire in the same cable)
 Limit unshielded portions of shielded cable to 1” at terminals.
 Shielded cable should not extend greater than 300 feet between the LGate and the rst
inverter, or between inverters.
 Run communication lines at least 1 foot away and in separate conduit from AC and DC
power lines.
 Ensure that there is good contact at all terminals (secure all wires at the terminal blocks
and check for metal-to-metal contact).
 Ensure that each inverter contains all required components.
Inverter Direct Monitoring
Inverter direct monitoring is a monitoring feature that some companies purchase in addition
to the core monitoring package. This feature should only be installed if it has been ordered
for this particular project.
If you are unsure if inverter direct monitoring has been purchased for this project, contact
your company, lease provider, or program administrator.
Contents
SMA Sunny Boy 13
Power-One Aurora 15
Kaco Blueplanet 02xi 18
Fronius IG Plus 20
Emerson SPV 23
Eaton ISG PV 26

13
Supported Models of SMA and SunPower SPR Inverters
RS485 RTU
SMA Inverter Diagram
 Sunny Boy 3000-US
 Sunny Boy 3800-US
 Sunny Boy 4000-US
 Sunny Boy 5000-US
 Sunny Boy 6000-US
 Sunny Boy 7000-US
 Sunny Boy 8000-US
 SunPower SPR-5000m
 SunPower SPR-6000m
 SunPower SPR-7000m
 SunPower SPR-8000m
SMA Sunny Boy
!Each SMA inverter will require an RS485 ’Piggyback’ card in order to support inverter
direct communication. Please contact SMA or your inverter vendor about purchasing
this card (if necessary).
SMA Inverter Overview
The RS485 RTU can be found on the left-middle side of the inside of the inverter.
Extending RS485 / Modbus Wires
Extend the RS485 / Modbus wires as shown below.
LGate 120
Crimp wires outside
of the meter base
(i.e. in a junction box)
Gnd
Shield
+
-
To rst
inverter
Crimp blue, brown, &
inverter port 2 together
Crimp blue-white, brown
-white, & inverter port 7
together
Crimp green, shield &
signal inverter port 5
together
Secure all other wires in
the junction box

14
1. Connecting the LGate to Inverters
Using shielded twisted pair cable, wire the rst inverter to the RS485 / Modbus wires from
the LGate (see the previous page for information on extending RS485 wires).
2
Inverter #1
7
Termination
Jumper: not
installed LGate 120
5
3Junction
Box
2
Inverter #2
7
Termination
Jumper: not
installed
5
3
2
Inverter #3
(Last/Only Inverter)
7
Termination
Jumper: Port A
only
5
3
Last/Only
Inverter
Last Inverter
Termination
jumper on Port A
2. Addressing the Inverters
Note: SMA inverters will automatically be assigned communication addresses by the LGate. No
additional manual conguration is required.
3. Terminating the Daisy Chain
 For the last or only inverter in the chain, install a termination jumper on Port A only.
 For all other inverters, do not install any termination jumpers.
Junction box for
joining wires
Shield wire twisted but
not terminated inside
inverter housing
Shield wire secured but
not terminated inside
inverter housing
RS485 ‘Piggyback’
card installed

15
Supported Models of Power-One Inverters
 Aurora Uno 3.0
 Aurora Uno 3.6
 Aurora Uno 3.8
 Aurora Uno 4.2
 Aurora Uno 4.6
 Aurora Uno 5000
 Aurora Uno 6000
 Aurora Trio 10.0
 Aurora Trio 12.0
Power-One Aurora
!Power-One inverters often ship without terminal blocks included. Please contact
Power-One or your inverter vendor about purchasing these (if necessary).
Power-One Inverter Overview
The RS485 RTU can be found on the top-right side of the inside of the inverter.
RS485 RTU
Power-One Inverter
Extending RS485 / Modbus Wires
Extend the RS485 / Modbus wires as shown below.
LGate 120
Crimp wires outside
of the meter base
(i.e. in a junction box)
Gnd
Shield
+
-
To rst
inverter
Crimp blue, brown, &
inverter port +T/R
together
Crimp blue-white, brown
-white, & inverter port
-T/R together
Crimp green, shield &
signal inverter port RTN
together
Secure all other wires in
the junction box

16
1. Connecting the LGate to Inverters
Using shielded twisted pair cable, wire the rst inverter to the RS485 / Modbus wires from
the LGate (see the previous page for information on extending RS485 wires).
Inverter #1
1
Termination
Switch: Turned
to OFF LGate 120
Junction
Box
Inverter #2
Termination
Switch: Turned
to OFF
+T/R
Inverter #3
(Last/Only Inverter)
Termination
Switch: Turned
to ON
Middle Inverter
1
Junction box for
joining wires
Shield wire twisted but
not terminated inside
inverter housing
Shield wire secured but
not terminated inside
inverter housing
1. In the Main Menu, press Enter to select “Settings”;
the “Password” screen will appear (see diagram at
right)
2. Enter the password 0000: press Up to nd each
value, then Enter to select the number and move
on to the next value.
3. When nished entering the password, press Enter.
4. Press Enter in the next screen to select Address.
5. Set the inverter address: press Up to choose the
value and Enter to move on to the next value (see
the table at right for the address for each inverter).
6. Press Enter to save changes.
Power-One Inverter Menu
Posion Address
1st inverter 02
203
304
etc.
2. Setting the Inverter Addresses
Use the keys on the inverter menu to congure addresses:
Note: Each inverter address must be set individually.
 Up & Down keys: scroll
 Enter key: select
 Esc key: previous screen
-T/R RTN +T/R -T/R RTN +T/R -T/R RTN

17
Last/Only Inverter
Termination
switch
3. Terminating the Daisy Chain
 For the last or only inverter in the chain, turn the termination switch to ON.
 For all other inverters, turn the termination switch to OFF.
1
2
3
4
5
6RTN
TR-
TR+
RJ12 Connector Pin-out RJ45 Connector Pin-out
Power-One with
RJ12 Plug-ins
Power-One 3000, 3600, 4200
Inverters
 Gray terminal blocks (at right)
 RJ12 cords (below)
Power-One 5000, 6000 Inverters
 Gray terminal blocks (in instructions)
 RJ45 Ethernet cords (below)
Types of Communication Terminals
Power-One inverters have several types of terminals for inverter direct communication:
terminal blocks and comm jacks. While the pin-out is dierent for each terminal block and
comm jacks (as shown below), either option works for inverter direct communication.
6
5
4
3
2
1
RTN
TR-
TR+
8
7

18
Supported Models of Kaco Inverters
 Blueplanet 1502xi
 Blueplanet 2502xi
 Blueplanet 3502xi
 Blueplanet 5002xi
Kaco Blueplanet 02xi
!Make sure that each Kaco inverter has a com card of version LP210E or higher (to
verify, see the image of the Kaco Inverter on the following page).
Kaco Inverter Overview
The RS485 RTU is located in the connection box at the bottom of the inverter.
RS485 RTU
Kaco Inverter
Extending RS485 / Modbus Wires
Extend the RS485 / Modbus wires as shown below.
LGate 120
Crimp wires outside
of the meter base
(i.e. in a junction box)
Gnd
Shield
+
-
To rst
inverter
Crimp blue, brown, &
inverter port B together
Crimp blue-white, brown
-white, & inverter port A
together
Crimp green, shield &
inverter port G together
Secure all other wires in
the junction box

19
2. Setting the Inverter Addresses
Use the keys on the inverter menu to congure the addresses.
Note: Each inverter address must be set individually.
1. Press both keys to access conguration mode.
2. Press 1 to scroll to Select the interface and settings
of the RS485 address (see diagram at right).
3. Press 2 to switch to RS485 interface.
4. Press 1 to scroll to Address Setting menu
5. Press 2 to set inverter addresses:
 Inverter 1 (closest to LGate): 01
 Inverter 2 (next in series): 02, etc.
6. Press both keys to save the setting.
Conguration Keys
1 (Scroll)
2 (Select)
3. Terminating the Daisy Chain
 For the last or only inverter in the chain, turn the termination switches to ON.
 For all other inverters, turn the termination switches to OFF.
1. Connecting the LGate to Inverters
Using shielded twisted pair cable, wire the rst inverter to the RS485 / Modbus wires from
the LGate (see the previous page for information on extending RS485 wires).
Inverter #1
Termination
Switches:
Turned to OFF LGate 120
Junction
Box
Inverter #2
Termination
Switches:
Turned to OFF
A
Inverter #3
(Last/Only Inverter)
Termination
Switches:
Turned to ON
Middle Inverter
Junction box for
joining wires
Shield wire twisted but
not terminated inside
inverter housing
Shield wire secured but
not terminated inside
inverter housing
The two
sets of A, B,
& G ports
are inter-
changeable BGABGABGABGABGABG
Last/Only Inverter
Termination
switches

20
Supported Models of Fronius and SunPower SPR Inverters
 IG Plus 25 V-1
 IG Plus 30 V-1
 IG Plus 35 V-1
 IG Plus 50 V-1
 IG Plus 70 V-2
 IG Plus 100 V-2
 IG Plus 100 V-3
 IG Plus 120 V-3
 IG Plus 150 V-3
 SunPower SPR-3300f
 SunPower SPR-4000f
 SunPower SPR-6500f
 SunPower SPR-8000f
 SunPower SPR-12000f
Fronius IG Plus
!Each Fronius inverter will require an RS485 ‘Com Card’ in order to support inverter
direct communication and a termination plug to terminate the communication chain.
Please contact Fronius or your inverter vendor to purchase these items.
Fronius Inverter Overview
The Com Card is placed on the bottom-right of the inside of the inverter.
Fronius Inverter RTU
Fronius Inverter
Com Card
1. Connecting the LGate to Inverters
Using shielded twisted pair cable, wire the rst inverter to the RS485 / Modbus wires.
Inverter #1
Termination
Plug: Not
installed LGate 120
Inverter #2
Termination
Plug: Not
installed
Inverter #3
(Last Inverter)
Termination
Plug:
Installed
Termination Plug in Last/Only Inverter
IN OUT IN OUT IN OUT Junction
Box
Crimp blue to inverter blue
Crimp blue-white to inverter blue-white
Crimp brown to inverter green-white
Crimp brown-white to inverter green
Crimp orange to inverter brown-white