SolarEdge SE-WND-3Y400-MB-K2 User manual

Installation Guide
Energy Meter with Modbus
Connection
Version 1.5

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.
Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
Disclaimers1

The images contained in this document are for illustrative
purposes only and may vary depending on product models.
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 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.
Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
2 Emission Compliance

Changes or modifications not expressly approved by the party
responsible for compliance may void the user’s authority to
operate the equipment.
NOTE
Interferences may occur when the Wi-Fi Plug-in and
Repeater are installed near other 2.4 GHz emitting
devices (such as dual technology PIR detectors used in
alarm systems, microwave ovens, etc.). This might
degrade/ disable the gateway/ repeater operation. If
possible, avoid installation nearby such devices, or
consider these interferences when troubleshooting.
Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
Disclaimers3

Version History
Version 1.5 (July 2019)
SetApp configuration support
Version 1.4 (April 2019)
Configuration updates
Version 1.3 (Nov. 2018)
Configuration steps update
Version 1.2 (July 2018)
Firmware version support update
Version 1.1 (May 2018)
Product name update
Model SE-WND-3Y400-MB-K2
Accuracy: 1% of Rated CT Current
Supports UKEngineering Recommendation G100 Issue
1 Amendment 1 2017
Version 1.0 (February 2016) - Initial release
Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
4 Emission Compliance

Contents
Disclaimers 1
Important Notice 1
Emission Compliance 2
Contents 5
HANDLING AND SAFETY INSTRUCTIONS 7
Safety Symbols Information 7
Chapter 1: Introduction 9
Terminology 9
The SolarEdge Energy meter with Modbus connection 11
Meter Connection Options 12
Chapter 2: Meter Installation 15
Installation Guidelines 15
Installing and Connecting the Meter 17
Chapter 3: Configuration 26
SolarEdge Device Firmware Version 26
Device Configuration 29
Appendix A: Troubleshooting Meter Connection 43
Troubleshooting the Meter using SetApp 43
Troubleshooting the Meter using the Device Display 47
Appendix B: Installing Two Meters 52
Connecting Two Meters 52
Configuring the Dual-Meter Connection 55
Verifying Meter Connection 60
Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
Contents5

Troubleshooting Dual-Meter Connection 62
Appendix C: Monitoring Platform - Meter Data 64
Appendix D: Meter Technical Specifications 68
Appendix E: External Lightning Protection 73
Support Contact Information 75
Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
6 Contents

HANDLING AND SAFETY
INSTRUCTIONS
During installation, testing and inspection, adherence to all the
handling and safety instructions is mandatory. Failure to do so
may result in injury or loss of life and damage to the
equipment.
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.
Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
HANDLING AND SAFETY INSTRUCTIONS7

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.
Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
8 Safety Symbols Information

Chapter 1: Introduction
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 by the site.
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.
Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
Chapter 1: Introduction9

Figure 1: Terminology Illustration
Three-phase grid configuration types:
Wye: In a Wye ("Y") configuration, all three phases are
connected at a single neutral point. Wye systems utilize
five wires - three hot, one neutral and one ground.
Delta: In a Delta configuration, the three phases are
connected in a triangle. Delta systems utilize four wires -
three hot and one ground.
Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
10 Terminology

The SolarEdge Energy meter with
Modbus connection
The SolarEdge Energy meter with Modbus connection (also
referred to as “the meter”) enables measuring the power and
energy of the photovoltaic (PV)system.
The meter is used by the inverter for the following applications:
Production metering
Consumption monitoring
Export limitation
Smart Energy on-grid applications
The SolarEdge inverter or the Commercial Gateway reads the
exported/imported power from a meter installed at the grid
connection point or reads the consumption from a meter
installed at the load consumption point.
Figure 2: Typical installation with production meter
Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
Chapter 1: Introduction11

Figure 3: Typical installation with export/import meter
Figure 4: Typical installation with consumption meter
Meter Connection Options
In a single inverter system, the meter is connected directly to
the inverter.
Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
12 Meter Connection Options

Figure 5: Single-inverter(1) connection
In a multiple inverter system, two options are available:
The 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) or ZigBee
communication between the inverters.
(1)This figure shows a single phase inverter connection. For three phase
inverters, 3 CTs are required.
Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
Chapter 1: Introduction13

The meter is connected to one of the RS485 ports of a
Commercial Gateway. The Commercial Gateway’s second
RS485 port can be used to create an RS485 bus for
communication between the inverters. This option is
illustrated in Figure 6 .
Figure 6: Multi-inverter connection with Commercial Gateway and
meter
Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
14 Meter Connection Options

Chapter 2: Meter Installation
NOTE
Before installing the meter, make sure that you are
installing the model SE-WND-3Y400-MB-K2 meter
from SolarEdge that has a yellow barcode sticker on
one of the side panels of the meter.
Installation Guidelines
AC wire specifications: 1.3 to 2.0 mm diameter / 16 to 12 AWG
stranded wire, 600 V, type THHN, MTW, or THWN.
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/ 24-18 AWG (a CAT5
cable may be used)
NOTE
If using a cable longer than 10 m/33 ft in areas where
there is a risk of induced voltage surges by lightning,
it is recommend to use external surge protection
devices. For details refer to External Lightning
Protection on page 73. If grounded metal conduit are
used for routing the communication wires, there is no
need for a lightning protection device.
Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
Chapter 2: Meter Installation 15

The meter is considered “permanently connected
equipment” and requires a disconnect means (circuit
breaker, switch, or disconnect) and overcurrent protection
(fuse or circuit breaker).
The meter draws 10-30mA, therefore the rating of any
switches, disconnects, fuses, and/ or circuit breakers is
determined by the wire gauge, the mains voltage, and the
current interrupting rating required.
The switch, disconnect, or circuit breaker must be located
near the meter and be easily operated .
Use circuit breakers or fuses rated for 20A or less.
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.
Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
16 Installation Guidelines

Installing and Connecting the Meter
Mount the meter either directly on a flat surface, or on a DIN
rail using the DIN-rail clips supplied with the meter.
To mount the meter directly on a surface:
1. Carefully remove the terminal blocks on both sides of the
meter.
2. Use the two mounting holes on both sides of the meter to
mark the hole positions.
NOTE
Do not use the meter as a drilling guide; the drill
may damage the screw terminals and metal
shavings may fall into the connectors.
3. Use the supplied screws to mount the meter. Do not over-
tighten the screws, as long-term stress on the case can
cause cracking.
Figure 7: Meter mounting holes
Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
Chapter 2: Meter Installation 17

To mount on a DINrail using clips:
The supplied kit includes two DIN-rail mounting-clips and two
screws.
1. Carefully remove the terminal blocks from both sides of the
meter.
2. Attach the DIN rail clips to the meter and fasten them using
the supplied screws (torque 0.7 N*m/ 0.5 lb*ft). Make sure
that the clips are correctly oriented, as shown below.
Figure 8: Mounting the meter on a DIN-rail

Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
18 Installing and Connecting the Meter

To install the current transformers (CTs):
NOTE
If installing a high-accuracy/RGM meter, make sure
that the CTs chosen are appropriate for use with the
meter.
1. Turn off AC power before clamping on current transformers.
2. Install the CTs around the conductor to be measured. Split-
core CTs can be opened for installation around a
conductor. A nylon cable tie may be secured around the CT
to prevent accidental opening.
3. Install the CTs with the arrows pointing to the grid for
consumption or export measurement.

Energy Meter with Modbus Connection Installation Guide MAN-01-00269-1.5
Chapter 2: Meter Installation 19