reset or, in some cases, by being programmed to reset
automatically. Do not use trip for personal safety.
Trip lock
Trip lock is a state entered in fault situations when the
frequency converter is protecting itself and requiring
physical intervention. For example, a short circuit on the
output triggers a trip lock. A locked trip can only be
canceled by cutting off mains, removing the cause of the
fault, and reconnecting the frequency converter. Restart is
prevented until the trip state is canceled by activating
reset or, sometimes, by being programmed to reset
automatically. Do not use trip lock for personal safety.
VT characteristics
Variable torque characteristics used for pumps and fans.
VVC
+
If compared with standard voltage/frequency ratio control,
voltage vector control (VVC
+
) improves the dynamics and
stability, both when the speed reference is changed and in
relation to the load torque.
60
°
AVM
Refer to the switching pattern 60
°
asynchronous vector
modulation.
1.4 Document and Software Version
This manual is regularly reviewed and updated. All
suggestions for improvement are welcome.
shows
the document version and the corresponding software
version.
Edition
Remarks
Software version
MG07B1
The first edition of this manual
1.1
Table 1.2 Document and Software Version
1.5 Approvals and Certifications
Frequency converters are designed in compliance with the
directives described in this section.
1.5.1 CE Mark
The CE mark (Communauté européenne) indicates that the
product manufacturer conforms to all applicable EU
directives.
The EU directives applicable to the design and
manufacture of frequency converters are:
•
The Low Voltage Directive.
•
The EMC Directive.
•
The Machinery Directive (for units with an
integrated safety function).
The CE mark is intended to eliminate technical barriers to
free trade between the EC and EFTA states inside the ECU.
The CE mark does not regulate the quality of the product.
Technical specifications cannot be deduced from the CE
mark.
1.5.2 Low Voltage Directive
Frequency converters are classified as electronic
components and must be CE labeled in accordance with
the Low Voltage Directive. The directive applies to all
electrical equipment in the 50–1000 V AC and the 75–
1600 V DC voltage ranges.
The directive mandates that the equipment design must
ensure the safety and health of people and livestock, and
the preservation of material by ensuring the equipment is
properly installed, maintained, and used as intended.
Danfoss CE labels comply with the Low Voltage Directive,
and Danfoss provides a declaration of conformity at
request.
1.5.3 EMC Directive
Electromagnetic compatibility (EMC) means that electro-
magnetic interference between pieces of equipment does
not hinder their performance. The basic protection
requirement of the EMC Directive 2014/30/EU states that
devices that generate electromagnetic interference (EMI) or
whose operation could be affected by EMI must be
designed to limit the generation of electromagnetic
interference and shall have a suitable degree of immunity
to EMI when properly installed, maintained, and used as
intended.
A frequency converter can be used as standalone device or
as part of a more complex installation. Devices in either of
these cases must bear the CE mark. Systems must not be
CE marked but must comply with the basic protection
requirements of the EMC directive.
Applied standards and compliance for STO
Using STO on terminals 37 and 38 requires fulfillment of all
provisions for safety including relevant laws, regulations,
and guidelines.
The integrated STO function complies with the following
standards:
•
IEC/EN 61508: 2010 SIL2
•
IEC/EN 61800-5-2: 2007 SIL2
•
IEC/EN 62061: 2012 SILCL of SIL2
•
IEC/EN 61326-3-1: 2008
•
EN ISO 13849-1: 2008 Category 3 PL d
Introduction
Design Guide
MG07B102
Danfoss A/S © 03/2016 All rights reserved.
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1
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