1 About this manual
Installation and Operation Manual for Solar Power Inverter M70A EU V1.1 EN 2020-02-20
6
1. About this manual
1.1 Purpose of this manual
This manual is part of the inverter and supports the installation,
commissioning and operation of the inverter.
Read this manual before working on the inverter.
Always follow the safety instructions and work instructions in this
manual. This will ensure that the inverter can be safely installed,
commissioned and operated.
Store this manual in a safe place in the vicinity of the inverter so
that it is always quickly available when working on the inverter.
Delta Electronics is not responsible for damage resulting from
failure to follow the safety and operating instructions set out in
this manual.
1.2 Target audience of this manual
This manual is intended for installers who are trained and
approved for the installation, commissioning and operation of
solar inverters in grid-connected solar systems.
1.3 How to use this manual
The structure of this manual, in addition to the symbols and text
markings used, is described in the chapter 1. About this man-
ual. The latter means that the contents are marked according to
their meaning. Thus operations, names of buttons and error mes-
sages can always be recognized by their specic formatting.
The chapter 2. Basic safety instructions identies the safety
risks associated with using the inverter. You must read this chap-
ter in order to ensure safe handling of the installation, mainte-
nance and operation of the inverter.
The purposes for which the inverter may be used are described
in the chapter 3. Intended purpose . This chapter also describes
purposes for which the use of the inverter is not permitted, even
though in some cases they are similar to the purposes for which
the inverter may be used.
The chapter 4. Product overview gives a brief description of
the location and use of the most important components of the
inverter. In this section you will see for instance where the cables
for the grid and the solar modules are connected.
The chapter 5. Planning the installation describes the planning
of the installation and contains information about eective prepa-
rations for installation of the inverter and avoiding delays in its
installation. This includes, where necessary, descriptions of the
operating behavior of the inverter. In this section you will learn
for instance what you must consider in selecting, calculating and
laying the cables.
There are multiple ways to commission the inverter after installa-
tion. The preparations required for each method are described in
the chapter 6. Planning the Commissioning.
The chapter 7. Installation is a detailed step-by-step guide for all
necessary and optional installation work. For example, this chap-
ter describes how to install optional accessories, set up device
communication and monitoring or connect cables. For smooth
running, you must have made all necessary preparations before-
hand according to the chapters 4. Product overview, 5. Plan-
ning the installation and 6. Planning the Commissioning.
The various ways of commissioning the inverter are described in
the chapter 8. Commissioning. It is essential to read the chapter
6. Planning the Commissioning before commissioning the sys-
tem to ensure that it functions smoothly.
Error messages, their cause and measures for their rectication
are listed in the chapter 9. Error events and troubleshooting.
Follow the instructions without fail. Never attempt to correct an
error marked "Contact Delta Customer Service" yourself.
Maintenance and repair work that you can perform yourself is
described in the chapter 10. Maintenance. All other maintenance
and repair work must only be carried out by Delta personnel or
after consultation with Delta Customer Service.
A list of the most important technical data can be found in the
chapter 11. Technical Data. If you require technical values over
and above this, please contact Delta Customer Service.
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