Introduction to the guide 9
Commissioning the drive for a motor in a hazardous area
Commission the drive according to the requirements and limitations set by the application,
the instructions of the motor manufacturer, drive Firmware manual and local laws and
regulations.
The certificate of the Ex motor typically requires that you set a minimum limit for the output
switching frequency of the drive. Make sure that the Ex motor is operated above the
minimum output switching frequency specified by the motor manufacturer. See section
Switching frequency limitation on page 13.
Compliance with the European ATEX Product
Directive 2014/34/EU (94/9/EC)
The system integrator is responsible for the compliance of the complete thermal motor
protection circuit with the European ATEX Product Directive 2014/34/EU (previously 94/9/
EC). Make sure that the:
• drive is equipped with the ATEX-certified Safe disconnection function (+option +Q971)
• motor thermal protection relay is ATEX-compliant
• motor thermal protection circuit is wired according to the instructions given in this
guide and in the motor manual and according to the installation requirements of the
relevant standard(s) of EN/IEC 60079 series.
Contents
This guide contains the following chapters:
• Introduction to the guide introduces this guide.
• Implementing a Safe disconnection function gives instructions for implementing an
ATEX-compliant motor thermal protection circuit using the ATEX-certified Safe
disconnection function (option +Q971) of the drive/inverter module.
• Technical data contains a list of related standards and directives, safety data and the
drive ATEX certificates and Declaration of Conformity documents.
Related documents
See inside of the front cover for List of related manuals.
Terms and abbreviations
The abbreviations used in this manual are listed below.
Abbreviation Description Reference
ATEX Directives 2014/34/EU (previously 94/9/EC) and 1999/92/
EC refers to the ATEX directives (from “ATmosphères
EXplosibles”).
CM-MSS ABB thermistor motor protection relay.
Ex An IEC term used in the context of explosive atmospheres. IEC 60079 series
Ex d Type of protection, flameproof enclosures. EN/IEC 60079-1
Ex e Type of protection, increased safety, to be replaced with Ex
eb.
EN 60079-7:2007 and
IEC 60079-7:2006
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