Compressor Drive System View; Introduction - Danfoss VLT CDS 303 Operating Instructions Manual

Introduction

1 1
1 Introduction
1.1 Introduction
Low Pressure Cutout
Pressure sensor 4-20 mA
Figure 1.1 Compressor Drive System
®
The VLT Compressor Drives utilize and combine Danfoss
design and manufacturing expertise. Our extensive
application knowledge of refrigeration, air conditioning,
and motion controls ensures an optimized product design
and package solution:
•
A "plug & play" solution
•
Operational efficiency
•
Flexibility & best control accuracy
•
Innovative and reliable solution
The frequency converter is 100% preset for speed open
loop configuration with 0-10 V reference corresponding to
4
VLT
Unit controller
Reference
Danfoss A/S © Rev. 2013-07-03 All rights reserved.
®
Compressor Drives CDS 302/CDS 303
Start/stop
High pressure cutout
1800-5400 RPM for CDS 302 and 1500-6000 RPM for CDS
303.
VFD
Drive
Oil solenoid
MG34M422