10/05 AWB8230-1541GB
5
About this manual
This manual describes the DF51 series frequency inverters.
It contains special information which is required for engineering,
installation and operation of the DF51 frequency inverters. The
features, parameters and functions are described in detail and
illustrated with examples of the most important applications. All
given details relate to the specified hardware and software
versions.
Abbreviations and symbols
The following abbreviations and symbols are used in this manual:
All measurements are in millimetres unless otherwise stated.
To improve the clarity of the illustrations, the enclosures of the
frequency inverter and other safety components may not be shown
in some figures. In practice, the frequency inverter must always be
operated with the enclosure and all necessary components that
affect equipment safety correctly fitted.
Read the manual thoroughly before you install and operate the
frequency inverter. We assume that you have a good knowledge
of engineering fundamentals and that you are familiar with
electrical systems and the applicable principles and are able to
read, interpret and apply the information contained in technical
drawings.
X Indicates instructions to be followed
To improve readability, the title of the chapter is indicated on the
top of the left-hand page and the current section is indicated on
the top of the right-hand page. Pages where chapters commence
and blank pages at the end of the chapter are an exception.
EMC
Electro Magnetic Compatibility
ESD
Electrostatic Discharge
HF
High Frequency
IGBT
Insulated Gate Bipolar Transistor
PES
P ositive Earth connection of the cable Screen
PNU
Parameter Number
RCD
Residual Current Protective Device
DS
Factory Default Setting
h
Indicates useful tips and additional information
Caution!
Warns about the possibility of minor material damage.
Warning!
Warns about the possibility of major material damage and
minor injury.
Danger!
Warns about the possibility of major material damage and
severe injury or death.
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