Danfoss VLT Operating Instructions Manual
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Danfoss VLT Operating Instructions Manual

Frequency converters - safe torque off
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Download this manual See also: Programming Manual, Instruction Manual
MAKING MODERN LIVING POSSIBLE
Operating Instructions
®
VLT
Frequency Converters - Safe Torque Off
www.danfoss.com/drives

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  • Page 1 MAKING MODERN LIVING POSSIBLE Operating Instructions ® Frequency Converters - Safe Torque Off www.danfoss.com/drives...

  • Page 3: Table Of Contents

    PTC Thermistor Card MCB 112 4 Commissioning 4.1 Safety Instructions 4.2 Activation of STO ® 4.3 Parameter Settings for STO in Combination with VLT PTC Thermistor Card MCB 4.4 Automatic/Manual Restart Behaviour 4.5 STO Commissioning Test 4.5.1 Restart Prevention for STO Application 4.5.2 Automatic Restart of STO Application...

  • Page 4: Introduction

    1 Introduction 1.3.2 Products Covered and Identification 1.1 Purpose of the Manual ® This manual provides information for use of Danfoss VLT The STO function is available for the following types of frequency converters in functional safety applications. The frequency converters: manual includes information about functional safety ®...

  • Page 5: Approvals And Certifications

    EN 60204-1: 2006 Stop category 0 – uncontrolled stop • IEC/EN 61508: 2010 SIL2 • IEC/EN 61800-5-2: 2007 • IEC/EN 62061: 2005 SIL CL2 • EN ISO 13849-1: 2008 Category 3 PL d MG37D202 Danfoss A/S © 09/2014 All rights reserved.

  • Page 6: Symbols, Abbreviations And Conventions

    Table 1.2 Abbreviations Related to Functional Safety Conventions Numbered lists indicate procedures. Bullet lists indicate other information and description of illustrations. Italicised text indicates • cross reference • link • parameter name Danfoss A/S © 09/2014 All rights reserved. MG37D202...

  • Page 7: Safety

    SIL or PLr to each of the functions. • Other subsystems and the validity of signals and commands from them. • Designing appropriate safety-related control systems (hardware, software, parameterisation, etc.). MG37D202 Danfoss A/S © 09/2014 All rights reserved.
  • Page 8 (number of poles). The application using synchronous or permanent magnet motors must take this residual rotation into consideration and ensure that it does not pose a safety risk. This situation is not relevant for asynchronous motors. Danfoss A/S © 09/2014 All rights reserved. MG37D202...

  • Page 9: Installation

    For motor connection, AC mains connection, and control wiring, follow the instructions for safe installation in the Operating Instructions of the frequency converter. ® For installation with the Ex-certified VLT PTC Thermistor Card MCB 112, see chapter 3.3 Installation in Combination ®...

  • Page 10: Installation In Combination With Vlt ® Ptc Thermistor Card Mcb 112

    NOTICE Hazardous Hazardous Area Area ® Combination of VLT PTC Thermistor Card MCB 112 and ® STO function is only available for VLT HVAC Drive FC PTC Thermistor Card ® ® 102, VLT AutomationDrive FC 302, and VLT MCB112 AutomationDrive FC 301 enclosure type A1.

  • Page 11: Commissioning

    Dangerous Failure [A72] and coasts the motor safely, without automatic restart. • Select [6] PTC 1 & Relay A to [9] PTC 1 & Relay W/A for the combination of external safety device and MCB 112. MG37D202 Danfoss A/S © 09/2014 All rights reserved.

  • Page 12: Restart Prevention For Sto Application

    Relay W or [8] PTC 1 & Relay A/W): Remove the 24 V DC voltage supply to terminal 37 by the interrupt device while the frequency converter drives the motor (that is mains supply is not interrupted). Check that: Danfoss A/S © 09/2014 All rights reserved. MG37D202...

  • Page 13: Sto Technical Data

    Functional safety data are available from a data library for use with the SISTEMA calculation tool from the IFA (Institute for Occupational Safety and Health of the German Social Accident Insurance), and data for manual calculation. SISTEMA is available for download at www.danfoss.com/BusinessAreas/DrivesSolutions/SISTEMA/. MG37D202 Danfoss A/S © 09/2014 All rights reserved.

  • Page 14: Index

    Output......................8 Parameter settings................. 9 Products covered..................2 Qualified personnel................5 Restart behaviour..................9 Restart prevention................9, 10 Safety device..................... 8 Safety-guard switch................8 Safety-related sensor................8 Selections....................9 Signal...................... 5, 8 Danfoss A/S © 09/2014 All rights reserved. MG37D202...
  • Page 15 Index Operating Instructions MG37D202 Danfoss A/S © 09/2014 All rights reserved.
  • Page 16 Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed. All trademarks in this material are property of the respective companies.

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