SolarEdge Inline Energy Meter User manual

Installation Guide
Inline Energy Meter with
SolarEdge Energy Net
Communications
For Europeand Australia
Version 1.0

Disclaimers
Important Notice
Copyright © SolarEdge Inc. All rights reserved.
No part of this document may be reproduced, stored in a retrieval system or
transmitted, in any form or by any means, electronic, mechanical, photographic,
magnetic or otherwise, without the prior written permission of SolarEdge Inc.
The material furnished in this document is believed to be accurate and reliable.
However, SolarEdge assumes no responsibility for the use of this material. SolarEdge
reserves the right to make changes to the material at any time and without notice. You
may refer to the SolarEdge web site (www.solaredge.com) for the most updated version.
All company and brand products and service names are trademarks or registered
trademarks of their respective holders.
Patent marking notice: see http://www.solaredge.com/patent
The general terms and conditions of delivery of SolarEdge shall apply.
The content of these documents is continually reviewed and amended, where
necessary. However, discrepancies cannot be excluded. No guarantee is made for the
completeness of these documents.
The images contained in this document are for illustrative purposes only and may vary
depending on product models.
Disclaimers 1
Inline Energy Meter with SolarEdge Energy Net Communications

Emission Compliance
This equipment has been tested and found to comply with the limits applied by the
local regulations.
These limits are designed to provide reasonable protection against harmful interference.
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.
CAUTION!
Where EN55011 Class A is deemed applicable, the following requirements apply:
This equipment is not intended for use in residential environments and may
not provide adequate protection to radio reception in such environments.
This equipment should be connected to inverters with a rated power > 20
kVA and is intended to be installed in a large photovoltaic power generating
system by a professional.
This equipment should be physically separated from residential
environments by a distance greater than 30 m, and can be equipped with
additional filtering if necessary.
Inline Energy Meter with SolarEdge Energy Net Communications
2 Emission Compliance

Version History
Version 1.0 (August 2021) - FIrst issue
Disclaimers 3
Inline Energy Meter with SolarEdge Energy Net Communications

Contents
Disclaimers 1
Important Notice 1
Emission Compliance 2
HANDLING AND SAFETY INSTRUCTIONS 5
Safety Symbols Information 5
Chapter 1: The SolarEdge Inline Energy Meter with SolarEdge Energy Net
Communications 6
SolarEdge Energy Net Wireless Connectivity 6
Package Contents 6
Terminology 7
Metering Applications 8
Meter Connection Options 10
Meter Interfaces 11
Chapter 2: Meter Installation 15
Installation Guidelines 15
Installing and Connecting the Inline Meter 16
Chapter 3: Configuration 26
SolarEdge Device Firmware Version 26
Device Configuration 27
Appendix A: Troubleshooting Meter Connection 36
Troubleshooting the Meter using SetApp 36
Appendix B: Installing Multiple Meters 39
Connecting Two Meters 39
Configuring the Dual-Meter Connection 40
Verifying Meter Connections 40
Troubleshooting Dual-Meter Connections 40
Appendix C: Monitoring Platform - Meter Data 41
Appendix D: Supplemental Documentation 43
Support Contact Information 44
Inline Energy Meter with SolarEdge Energy Net Communications
4 Emission Compliance

HANDLING AND SAFETY INSTRUCTIONS
Safety Symbols Information
The following safety symbols are used in this document. Familiarize yourself with the
symbols and their meaning before installing or operating the system.
WARNING!
Denotes a hazard. It calls attention to a procedure that, if not correctly
performed or adhered to, could result in injury or loss of life. Do not proceed
beyond a warning note until the indicated conditions are fully understood and
met.
CAUTION!
Denotes a hazard. It calls attention to a procedure that, if not correctly
performed or adhered to, could result in damage or destruction of the
product. Do not proceed beyond a caution sign until the indicated conditions
are fully understood and met.
NOTE
Denotes additional information about the current subject.
IMPORTANTSAFETYFEATURE
Denotes information about safety issues.
Disposal requirements under the Waste Electrical and Electronic Equipment (WEEE)
regulations:
NOTE
Discard this product according to local regulations or send it back to SolarEdge.
HANDLING AND SAFETY INSTRUCTIONS 5
Inline Energy Meter with SolarEdge Energy Net Communications

Chapter 1: The SolarEdge Inline Energy Meter
with SolarEdge Energy Net Communications
The SolarEdge Inline Energy Meter (also referred to as “the inline meter”) is used to
measure the power and energy of the photovoltaic (PV)system.
The inline meter:
Fits in a standard EUelectrical cabinet
Supports a direct connection of up to 65A per phase, for three phase and single
phase grid connections
Is supplied with integrated current transformers - eliminating the need to install
external CTs
The three phase inline meter (part number: MTR-240-3PC1-D-A-MW) supports both
single-phase and three-phase grid connections.
The single phase inline meter (part number: MTR-240-1PC1-DW-MW) supports single-
phase grids only.

NOTE
This installation guide provides instructions for configuration of the inline meter
using SetApp. To connect the inline meter to display inverters, purchase the
relevant communication board kit from SolarEdge. See Energy Net Support on
page 14 to select the required kit.
SolarEdge Energy Net Wireless Connectivity
The inline meter supports wireless communication with the inverter using the SolarEdge
Energy Net connectivity. To establish communications, the inverter must also support
SolarEdge Energy Net.
Alternatively, serial RS485 connectivity can be implemented.
Package Contents
SolarEdge Inline Energy Meter
NOTE
For the complete list of part numbers that this manual applies to, refer to the
technical specification in the Appendix Supplemental Documentation on page 43.
RS485 Terminal Block
Quick Installation Guide
Inline Energy Meter with SolarEdge Energy Net Communications
6 Chapter 1: The SolarEdge Inline Energy Meter with SolarEdge Energy
Net Communications

Terminology
The following terms are used in this document:
Export: The power injected to the grid.
Import: The power purchased from the grid.
Export/Import meter: A meter that is installed at the grid connection point and
measures the energy/power exported/imported to/from the grid.
Consumption: The power consumed at the site. Consumption power is calculated as
the sum of self-consumption power and import power.
Consumption meter: A meter that is installed at the load consumption point and
measures the energy/power consumed by the site.
Self-consumption: The PVpower consumed by the site and not fed into the grid.
Production: The power produced by the PV system.
Production meter: A meter that is installed at the inverter output or site AC
connection, and measures the energy/power produced by the PVsystem or site.
External production meter: A meter that is used for production metering of 3rd party
generators, or for AC coupling with non-SolarEdge inverters.
Site production meter: A meter that is installed at a SolarEdge inverter output, and
reads the energy produced by all the inverters at the site.
Site limit: The power level (in kW) that the inverter falls back to once an export limit
event is triggered.
Figure 1: Terminology Illustration
7
Inline Energy Meter with SolarEdge Energy Net Communications

Metering Applications
The SolarEdge inverter reads data from the inline meter, typically using one of the
scenarios illustrated in the figures below:
Production metering, using a meter installed at the output power connection of the
inverter. Production metering functions (inverter production, external production,
site production) are supported in software version 4.14.xx and above.
Export/import metering, using a meter installed at the grid connection point
Consumption metering, using a meter installed at the load consumption point
Figure 2: Typical installation with production meter
Figure 3: Typical installation with export/import meter
Figure 4: Typical installation with consumption meter
Inline Energy Meter with SolarEdge Energy Net Communications
8 Metering Applications

NOTE
The AC wires connected to the main terminal block of the inline meter can be
swapped - allowing the grid to be connected to either the upper terminal
blocks or the lower terminal blocks. For further details, see Installing the Inline
Meter on page 17

NOTE
Up to three meters can be connected to a single inverter. Each meter should
perform a different function. Any combination of Energy Net and
Modbus/RS485 communication is supported.
9
Inline Energy Meter with SolarEdge Energy Net Communications

Meter Connection Options
In a single inverter system, the inline meter is connected directly to an RS485 port of the
inverter, or communicates over a wireless SolarEdge Energy Net channel.
NOTE
Hereafter, when an RS485 connection is mentioned in this installation guide,
the user may opt alternatively to connect the inline meter to the inverter using
a wireless SolarEdge Energy Net connection (the inverter should support
Energy Net Communications).
Figure 5: Single-inverter connection with export/import meter using RS485 link
Figure 6: Single-inverter connection with export/import meter using SolarEdge Energy Net
wireless link
In a multiple inverter system:
The inline meter is connected to an RS485 port of one of the inverters.
If the inverter has a second RS485 port, use this port to connect between the
inverters.
If the inverter has only one RS485 port, use an RS485 Plug-In (available from
SolarEdge) to connect the inverters.
Inline Energy Meter with SolarEdge Energy Net Communications
10 Meter Connection Options

Meter Interfaces
This section describes the SolarEdge inline meter's interfaces.
Figure 7: Inline Meter Interfaces
Main line connectors: inputs/output terminal blocks
RS485: detachable connector for wired connectivity with the inverter
Internal antenna: for wireless connectivity with the inverter
Three push buttons: to operate the inline meter display
LEDs: used to monitor meter status:
Orange: meter operation
Blue: Energy Net/RS485 communication status
Display: used to view energy readings and to configure the inline meter.
11
Inline Energy Meter with SolarEdge Energy Net Communications

LEDs
The inline meter utilizes the orange and blue LEDs in the front of the unit (see the figure
above) in order to indicate the meter's status:
Orange: energy measurements
Blue: Energy Net/RS485 communication status
Function LED Indication
Energy
measurements Orange Blinking rate of 1000 pulses per hour indicates 1 kWh of measured energy.
Communication
status Blue
Blinking: Meter is searching for an Energy Net
network, or is not connected to RS485 bus.
Lit: Meter is in the reboot state, or has
successfully paired with the Energy Net
network, or was successfully connected to the
RS485 bus.
Fast blinking during configuration of the inline
meter.
Inline Energy Meter with SolarEdge Energy Net Communications
12 Meter Interfaces

Display Screen and Push Buttons
Display Screen
The inline meter display screen is used for basic configuration and operation of the
meter, and for reapplying factory default settings.
Push Buttons
Button Function Combination
Left
Up
Push the left button for 5 seconds
in order to reset the meter.
Push the Left and Middle buttons
simultaneously for 5 seconds in order
to initiate an Energy Net network
search session.
Middle Down
Right Enter 
13
Inline Energy Meter with SolarEdge Energy Net Communications

Energy Net Support
The inline meter supports wireless communication with the inverter over SolarEdge
Energy Net. The inverter should be equipped with a communications board supporting
Energy Net (and with the Energy Net module).
Access the following link for a list of all optional kits and their part numbers that can be
used with the inverter:
https://www.solaredge.com/sites/default/files/
se-energy-net-plug-in-datasheet.pdf
Notes:
All kits should be purchased separately.
Solaredge Energy Net modules are supplied with an external antenna that is to be
mounted on the inverter.
Some Solaredge Energy Net modules and kits are supplied in sets of 5 units.
Inline Energy Meter with SolarEdge Energy Net Communications
14 Meter Interfaces

Chapter 2: Meter Installation
Installation Guidelines
AC wiring specifications:
If an AC wiring extension is required, use the same type of ACwiring that is used in
the cabinet.
RS485 wiring specifications:
Cable type: Min. 3-wire shielded twisted pair (a 4-wire cable may be used)
Wire cross-section area: 0.2-1 mm² (a CAT6 cable may be used)
NOTE
If using RS485 cable longer than 10 meters in areas where there is a risk of
induced voltage surges by lightning, it is recommend to use surge protection
devices. If grounded metal conduits are used for routing the communication
wires, there is no need for a lightning protection device.
Additional Guidelines:
The inline meter is considered “permanently connected equipment” and requires a
disconnect means (circuit breaker, switch, or disconnect) and overcurrent
protection (fuse or circuit breaker).
The rating of any switches, disconnects, fuses, and/or circuit breakers is determined
by the inline meter's current rating, the mains voltage, and the current interruption
rating required.
The switch, disconnect, or circuit breaker must be located near the inline meter and
be easily operated.
Use grouped circuit breakers when monitoring more than one line.
The circuit breakers or fuses must protect the mains terminals labeled L1, L2, and L3.
In the rare case in which neutral has overcurrent protection, the overcurrent
protection device must interrupt both neutral and the ungrounded conductors
simultaneously.
The circuit protection / disconnect system must meet IEC 60947-1 and IEC 60947-3,
as well as all national and local electrical codes.
Chapter 2: Meter Installation 15
Inline Energy Meter with SolarEdge Energy Net Communications

Installing and Connecting the Inline Meter

NOTE
Make sure the inline meter's rating is within maximum permitted current
limitations.
In export/import applications, check that the rating of the main circuit breaker
is within maximum permitted current limitations.
Mounting the Inline Meter
To mount the inline meter on a DINrail:
The inline meter is designed for permanent installation in indoor locations. It is
intended for installation in switch cabinets or in small-installation distributors on a 35
mm mounting rail as per DIN EN 60715.
Mount the inline meter on the DIN rail as shown in the figure below. Fit the slot on the
back of the meter over the DINrail (see steps 1 and 2), and secure it in place on the
DINrail using the latching mechanism at the bottom of the meter.
Figure 8: Mounting the inline meter on a DIN-rail
To detach the inline meter from the DINrail:
1. Disconnect all AC wires and RS485 cable (if connected), or Energy Net antenna.
2. Detach the meter from the DIN rail by releasing the lever at the bottom of the meter,
and then separating it from the rail.
Inline Energy Meter with SolarEdge Energy Net Communications
16 Installing and Connecting the Inline Meter

Installing the Inline Meter
This section contains the following installation instructions:
General Installation Guidelines on page 17
Installing the Three Phase Inline Meter on page 18
Installing the Single Phase Inline Meter on page 21
General Installation Guidelines
The valid wiring schemes are as follows:
Class B (meter accuracy: ±1%). ACgrid-side lines are connected to the upper terminal
blocks of the inline meter.
Class A (meter accuracy: ±2%). AC load-side lines are connected to the upper terminal
blocks of the inline meter.
NOTE
The difference between accuracy classes Aand B results from the differing
current path through the meter in each scheme. For best performance, choose
Class B if possible.
General guidelines for installing the inline meter:
1. Turn off the AC power (main circuit breakers) before connecting the inline meter.
2. Using one of the below wiring schemes, connect the AC wiring to the terminal
blocks at the top and the bottom of the inline meter.
NOTE
Insert a flat-head screwdriver in the dedicated slot to open the screw covers.
Use cable with a cross-section of 1.0 - 26.0 mm2.
CAUTION
DO NOT use a circuit breaker with a rated current of more than 65A.
Chapter 2: Meter Installation 17
Inline Energy Meter with SolarEdge Energy Net Communications

Installing the Three Phase Inline Meter
For Export/Import Metering Applications
3Ø Meter Wiring - Accuracy class B (1%) 3Ø Meter Wiring - Accuracy class A (2%)
Figure 9: Export/Import Metering - Three Phase Wiring Schemes
NOTE
If the inline meter is connected to a single phase grid, connect phase 3 and N. The
two installation schemes depicted in the figure above are valid for single-phase grids
as well.
Inline Energy Meter with SolarEdge Energy Net Communications
18 Installing and Connecting the Inline Meter

For Consumption Metering Applications
3Ø Meter Wiring - Accuracy class B (1%) 3Ø Meter Wiring - Accuracy class A (2%)

Figure 10: Consumption Metering - Three Phase Wiring Schemes
NOTE
If the inline meter is connected to a single phase grid, connect phase 3 and N. The
two installation schemes depicted in the figure above are valid for single-phase grids
as well.
Chapter 2: Meter Installation 19
Inline Energy Meter with SolarEdge Energy Net Communications