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INTRODUCTION
The purpose of this manual is to provide technical information and instructions
that will enable the user to identify faults and affect repairs on the following Danfoss
Series 3000 and 3500 Adjustable Frequency Drives:
VLT 3002-3022, 230V VLT 3502-3532, 230V
VLT 3002-3052, 380, 460V VLT 3502-3562, 380, 460V
The manual has been divided into five sections. The first section covers the
description and sequence of operations. Section two covers fault messages and
provides troubleshooting charts both in the form of flow and symptom/cause.
Section three describes the various tests and methods used to evaluate the drives'
condition. Section four covers the removal and replacement of the various
components. Section five discusses application-specific information.
Electrostatic discharge. Many electronic components are sensitive to static
electricity. Voltages so low that they cannot be felt, seen or heard can reduce the
life, affect performance, or completely destroy sensitive electronic components.
When performing service, proper ESD equipment should be used to prevent
possible damage from occurring.
ESD SAFETY
Bob
VLT
®
Series Service Manual
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