Danfoss VLT 3511-3562

0 - 1
Introduction
Safety Precautions 0 - 2
Required Tools 0 - 3
Section One
Description of Operation 1 - 1
Sequence of Operation 1 - 4
Section Two
Fault Indicators and Messages 2 - 1
Troubleshooting Tips 2 - 5
Troubleshooting Flowchart 2 - 6
Symptom/Cause Chart 2 - 9
Section Three
Static Test Procedures 3 - 1
Dynamic Test Procedures 3 - 6
Section Four
Component Replacement Procedures 4 - 1
Section Five
Current Limit Trips 5 - 1
Ground Fault Trips 5 - 3
Overcurrent Trips 5 - 3
Overvoltage Trips 5 - 4
Fault Memory 5 - 6
Section Six
Spare Parts Tables 6 - 1
Appendix
Component Locations 7 - 1, 7 - 5
Block Diagrams 7 - 2, 7 - 6
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Table of Contents

Danfoss VLT 3511-3562 Specifications

General

Brand	Danfoss
Model	VLT 3511-3562
Category	Transducer
Language	English

Summary

Introduction

Safety Precautions

Essential safety guidelines, including ESD precautions for handling the drive.

Section Two

Fault Indicators and Messages

Explanation of control card messages: status, warnings, and alarms for fault diagnosis.

Warning Messages

Details messages indicating potential issues or impending faults during operation.

Alarm Messages

Describes fault messages that interrupt unit operation and require manual or automatic reset.

General Troubleshooting Tips

Practical advice and precautions for diagnosing and repairing the drive unit.

Troubleshooting Flowchart

Step-by-step guide to diagnose and resolve common drive operational issues.

SymptomCause Charts

Section Three

Static Test Procedures

Methods for testing components like rectifiers, inverters, and capacitors with a meter.

Testing the Input Rectifier

Testing the Inverter Section

Dynamic Test Procedures

Section Four

Component Replacement Procedures

Instructions for safely removing and installing various components of the drive.

Removing and Replacing the Control Card

Replacing Key Internal Cards and Modules

Section Five

Current Limit Trips

Unstable Motor Operation

Ground Fault Trips

Explanation of ground faults, detection methods, and testing procedures.

Overcurrent Trips

Causes of overcurrent trips, including short circuits and rapid current increases.

Overvoltage Trips and Regenerative Applications

Fault Memory

How to access and interpret the drive's stored fault codes.