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Introduction to the manual 11

Commissioning the drive for a motor in a hazardous area

Commission the drive according to the requirements and limitations set by the application,

the motor manufacturer’s instructions, drive firmware manual, local laws and regulations

and this manual.

 Minimum switching frequency

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 chapter

Parameter settings for instructions on how to make the setting.

Target audience

The manual is intended for people who install, start-up, use and service the ATEX-certified

motor thermal protection functions of the drive. Read the manual before working on the

drive. You are expected to know the fundamentals of electricity, wiring, electrical

components, electrical schematic symbols and ATEX/Ex regulations.

Contents

This manual contains information on implementing the ATEX-certified motor thermal

protection functions in the ACS880 cabinet-built drives, as well as the ATEX certification

documents.

This manual consists of the following chapters:

• Introduction to the manual introduces this manual, gives safety instructions and other

general information for the reader.

• ATEX-certified motor thermal protection function with PTC thermistor relays

(+L513+Q971) describes how the function is used for protecting the motor with PTC

thermistor relays, and provides the related safety data.

• ATEX-certified motor thermal protection function with Pt100 relays (+L514+Q971)

describes how the function is used for protecting the motor with Pt100 relays, and

provides the related safety data.

• Parameter settings lists the parameters that you have the set for the safety functions.

• Technical data contains the technical specifications of the relays, applicable

standards, ATEX compliance markings and certificates.

• Circuit diagrams contains example circuit diagrams illustrating the operation and

wiring of the functions.

ABB ACS880-17 User Manual

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