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ABB ACS850 Series Application Manual

Atex-certified safe disconnection function, ex ii (2) gd
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Download this manual See also: User Manual, Applications Manual
—
ABB MACHINERY DRIVES
Application guide
ATEX-certified Safe disconnection function,
Ex II (2) GD for ACS850 drives (+Q971)
3
Drive
XSTO
1
+24 V
2
XSTO
3
Control
circuit
4
3
Control
circuit
3 ~
Ex
motor

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Summary of Contents for ABB ACS850 Series

  • Page 1 — ABB MACHINERY DRIVES Application guide ATEX-certified Safe disconnection function, Ex II (2) GD for ACS850 drives (+Q971) Drive Control circuit XSTO +24 V XSTO Control circuit motor...

  • Page 2: List Of Related Manuals

    You can find manuals and other product documents in PDF format on the Internet. See section Document library on the Internet on the inside of the back cover. For manuals not available in the Document library, contact your local ABB representative.
  • Page 3 Application guide ATEX-certified Safe disconnection function, Ex II (2) GD for ACS850 drives (+Q971)  2019 ABB Oy. All Rights Reserved. 3AUA0000074343 Rev E EFFECTIVE: 2019-02-21...

  • Page 5: Table Of Contents

    Table of contents List of related manuals ........... 2 1.
  • Page 6 Providing feedback on ABB Drives manuals ....... . . 27...

  • Page 7: Introduction To The Guide

    Introduction to the guide 7 Introduction to the guide Contents of this chapter This guide contains information on implementing an ATEX-compliant protective circuit using the Safe torque off feature, along with a motor thermal protection method example, and the ATEX certification documents. Applicability This guide is applicable to the ACS850 drives with the ATEX-certified Safe disconnection function (option +Q971).

  • Page 8: Safety Instructions

    Ex motor and the insulation of the protection relay affect the insulation of the whole circuit. All Ex motors manufactured by ABB have basic insulation between the main circuit and the temperature sensor. Similarly, ABB thermistor relays have basic insulation between the sensor circuit and relay output.

  • Page 9: Commissioning The Drive For A Motor In A Hazardous Area

    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. An IEC term used in the context of explosive atmospheres. IEC 60079 series Ex d Type of protection, flameproof enclosures.

  • Page 10: Exclusion Of Liability

    Exclusion of liability ABB is not responsible for the implementation, verification and validation of the overall safety system. It is the responsibility of the end user (or other party) who is responsible for the overall system, system safety and compliance with ATEX/Ex regulations.

  • Page 11: Implementing A Safe Disconnection Function

    Implementing a Safe disconnection function 11 Implementing a Safe disconnection function Contents of this chapter This chapter contains instructions on implementing an ATEX-compliant thermal motor protection circuit using the ATEX-certified Safe disconnection function (option +Q971), of the ACS850 drive.

  • Page 12: Two-Channel Connection To Drive Sto Terminals

    12 Implementing a Safe disconnection function Two-channel connection to drive STO terminals General  This section describes an implementation of the ATEX-compliant motor thermal protection circuit. The circuit uses the ATEX-certified Safe disconnection function (option +Q971) of the drive and a two-channel (redundant) connection to the drive STO terminals. Connection diagram ...

  • Page 13: Parameter Settings

    The certificate of the Ex motor typically requires that you set a minimum limit for the switching frequency of the drive. For ABB Ex motors with ACS850 drives, set the minimum switching frequency to 3 kHz for both DTC motor control mode and scalar motor control mode. For more instructions, contact your ABB representative.

  • Page 14: Connection Diagram

    14 Implementing a Safe disconnection function Connection diagram  The diagram below shows the connections. The system integrator must acquire the components and do the installations drawn outside the drive border line. The output contact of the protective relay can be connected in series with another Safe torque off activation switch/relay (if present).

  • Page 15: Parameter Settings

    The certificate of the Ex motor typically requires that you set a minimum limit for the switching frequency of the drive. For ABB Ex motors with ACS850 drives, set the minimum switching frequency to 3 kHz for both DTC motor control mode and scalar motor control mode. For more instructions, contact your ABB representative.

  • Page 16: Thermal Motor Protection With Two-Channel Connection

    16 Implementing a Safe disconnection function Thermal motor protection with two-channel connection General  This section represents the implementation of an ATEX-compliant thermal motor protection circuit: • The circuit uses the ATEX-certified Safe disconnection function of the drive. • There is an ATEX certified thermistor motor protection relay to monitor the motor temperature.

  • Page 17: Connection Diagram (Two-Channel Connection)

    Implementing a Safe disconnection function 17 Connection diagram (two-channel connection)  The diagram below shows the wiring of a two-channel connection. The system integrator must acquire the components and do the installations drawn outside the drive border line. 24 V ACS850 You can use the drive STO function for several external safety functions at the same time (for example, ATEX-compliant thermal motor protection, and emergency stop).

  • Page 18: Wiring

    Safe torque off circuits of the drive, thus disconnecting the power supply from the motor. Use an ATEX-compliant protection relay only. The example employs an ABB CM-MSS.41 thermistor motor protection relay. You can find more information on that relay on the Internet, for example, in the data sheet of the relay (2CDC112216D0201).

  • Page 19: Technical Data

    Technical data 19 Technical data Contents of this chapter This chapter contains a list of related standards and directives, safety data and the drive ATEX certificates and Declaration of Conformity documents. Related standards and directives Code Name EN 50495: 2010 Safety devices required for the safe functioning of equipment with respect to explosion risks IEC 61508:2010...

  • Page 20: Markings Of The Drive/Inverter Module

    20 Technical data Markings of the drive/inverter module An ATEX label is attached to the drive to signify compliance with the European ATEX Products Directive 2014/34/EU (previously 94/9/EC). No. Description CE marking with Notified Body identification: The manufacturer declares that the product conforms with ATEX Directive 2014/34/EU (previously 94/9/EC).

  • Page 21: Atex Certificates

    Technical data 21 ATEX certificates...
  • Page 22 22 Technical data...
  • Page 23 Technical data 23...

  • Page 24: Declaration Of Conformity

    24 Technical data Declaration of Conformity...
  • Page 25 Technical data 25...
  • Page 26 26 Technical data Note: If the Declaration of Conformity is needed in any other official language of European Union than in English, contact ABB STO circuit cable specification Type 2 × 2 × 0.75 mm low voltage, single shielded, twisted pair cable...

  • Page 27: Product And Service Inquiries

    Product and service inquiries Address any inquiries about the product to your local ABB representative, quoting the type designation and serial number of the unit in question. A listing of ABB sales, support and service contacts can be found by navigating to abb.com/searchchannels.
  • Page 28 © Copyright 2019 ABB. All rights reserved. Specifications subject to change without notice.

This manual is also suitable for:

Acs850-04

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