1 Introduction1.1 Purpose of the Design GuideThis design guide is intended for project and systemsengineers, design consultants, and application and productspecialists. Technical information is provided to understandthe capabilities of the frequency converter for integrationinto motor control and monitoring systems. Detailsconcerning operation, requirements, and recommendationsfor system integration are described. Information isprovided for input power characteristics, output for motorcontrol, and ambient operating conditions for thefrequency converter.Also included are safety features, fault conditionmonitoring, operational status reporting, serial communi-cation capabilities, and programmable options. Designdetails such as site requirements, cables, fuses, controlwiring, the size and weight of units, and other criticalinformation necessary to plan for system integration is alsoprovided.Reviewing the detailed product information in the designstage enables developing a well-conceived system withoptimal functionality and efficiency.VLT® is a registered trademark.1.2 Additional ResourcesResources available to understand advanced frequencyconverter functions and programming:• The VLT® Parallel Drive Modules 250–1200 kWInstallation Guide provides instructions formechanical and electrical installation of thesedrive modules.• The VLT® Parallel Drive Modules 250–1200 kW UserGuide contains detailed procedures for start-up,basic operational programming, and functionaltesting. Additional information describes the userinterface, application examples, troubleshooting,and specifications.• Refer to the FC 102, FC 202, or FC 302 VLT® DriveProgramming Guide applicable to the particularseries of VLT® Parallel Drive Modules used increating the drive system. The programmingguide describes in greater detail how to workwith parameters and provides applicationexamples.• The VLT® FC Series, D-frame Service Manualcontains detailed service information, includinginformation applicable to the VLT® Parallel DriveModules.• The VLT® Frequency Converters – Safe Torque OffOperating Guide contains safety guidelines anddescribes the operation and specifications of theSafe Torque Off function.• The VLT® Brake Resistor MCE 101 Design Guidedescribes how to select the proper brake resistorfor any application.• The VLT® FC-Series Output Filter Design Guidedescribes how to select the proper output filterfor any application.• The VLT® Parallel Drive Modules Busbar Kit Instal-lation Instructions contain detailed informationabout installing the busbar option kit.• The VLT® Parallel Drive Modules Duct Kit Instal-lation Instructions contain detailed informationabout installing the duct option kit.Supplementary publications and manuals are availablefrom Danfoss. See drives.danfoss.com/knowledge-center/technical-documentation/ for listings.Introduction Design GuideMG37N102 Danfoss A/S © 6/2016 All rights reserved. 51 1