Danfoss VLT HVAC Drive FC 102 Manuale operativo - Pagina 4

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Danfoss VLT HVAC Drive FC 102 Manuale operativo

Introduction

1
1
1 Introduction

1.1 Purpose of the Manual

This manual provides information for use of Danfoss VLT
frequency converters in functional safety applications. The
manual includes information about functional safety
standards, Danfoss VLT
Off (STO) function, the related installation and commis-
sioning, and service and maintenance for STO.
®
VLT
is a registered trademark.

1.2 Additional Resources

This manual is targeted at users already familiar with the
®
VLT
frequency converters. It is intended as a supplement
to the manuals and instructions available for download at
drives.danfoss.com/knowledge-center/technical-documen-
tation/. Read the instructions shipped with the frequency
converter and/or frequency converter option before
installing the unit, and observe the instructions for safe
installation.

1.3 Functional Overview

1.3.1 Introduction
The Safe Torque Off (STO) function is a component in a
safety control system. STO prevents the unit from
generating the power required to rotate the motor.
NOTICE
Select and apply the components in the safety control
system appropriately to achieve the desired level of
operational safety. Before integrating and using STO in
an installation, carry out a thorough risk analysis on the
installation to determine whether the STO functionality
and safety levels are appropriate and sufficient.
®
The VLT
frequency converter is available with:
•
Safe Torque Off (STO), as defined by EN IEC
61800-5-2.
•
Stop Category 0, as defined in EN 60204-1.
The frequency converter integrates the STO functionality
via control terminal 37.
®
The VLT
frequency converter with STO functionality is
designed and approved suitable for the requirements of:
•
Category 3 in EN ISO 13849-1.
•
Performance Level "d" in EN ISO 13849-1.
•
SIL 2 in IEC 61508 and EN 61800-5-2.
•
SILCL 2 in EN 62061.
2
Safe Torque Off
®
frequency converter Safe Torque
Danfoss A/S © 01/2018 All rights reserved.
1.3.2 Products Covered and Identification
®
The STO function is available for the following types of
frequency converters:
•
®
VLT
HVAC Drive FC 102
•
®
VLT
Refrigeration Drive FC 103
•
®
VLT
AQUA Drive FC 202
•
®
VLT
AutomationDrive FC 301 enclosure size A1
•
®
VLT
AutomationDrive FC 302
•
®
VLT
Decentral Drive FCD 302
•
®
VLT
Parallel Drive Modules
Identification
•
Confirm that the frequency converter is
configured with STO function by checking the
unit typecode on the nameplate (see Table 1.1).
Product
®
VLT
HVAC Drive FC 102
®
VLT
Refrigeration Drive FC 103
®
VLT
AQUA Drive FC 202
®
VLT
AutomationDrive FC 301
enclosure size A1
®
VLT
AutomationDrive FC 302
®
VLT
Decentral Drive FCD 302
®
VLT
Parallel Drive Modules
Table 1.1 Typecode Identification

1.4 Approvals and Certifications

More approvals and certifications are available. Contact a
local Danfoss partner.
Typecode
T or U at digit 18 of the
typecode
T at digit 18 of the typecode
T or U at digit 18 of the
typecode
T at digit 18 of the typecode
X, B, or R at digit 18 of the
typecode
X, B, or R at digit 18 of the
typecode
T or U at digit 18 of the
typecode
MG37D502