Selecting The Correct Frequency Converter; Introduction - Danfoss VLT 2800 Design Manual

Introduction to VLT 2800

1.7 Selecting the Correct Frequency Converter

1.7.1 Introduction

This section explains how to specify and order a VLT 2800.
The frequency converter must be selected on the basis of the present motor current at maximum loading of the unit. The
frequency converter's rated output current I
Mains Voltage
VLT 2800 is available for 2 mains voltage ranges:
•
200-240 V and
•
380-480 V.
Select whether the frequency converter is connected to a mains voltage of:
•
1x220-240 V single-phase AC voltage
•
3x200-240 V 3-phase AC voltage
•
3x380-480 V 3-phase AC voltage
Typical shaft output
P
INV.
Type [kW]
2803 0.37
2805 0.55
2807 0.75
2811 1.1
2815 1.5
2822 2.2
2840 3.7
Table 1.1 1x220-240 V Mains Voltage
Typical shaft output
P
INV.
Type [kW]
2803 0.37
2805 0.55
2807 0.75
2811 1.1
2815 1.5
2822 2.2
2840 3.7
Table 1.2 3x200-240 V Mains Voltage
MG27E402
Design Guide
must be equal to or greater than the required motor current.
INV.
Maximum constant output current I
[HP] [A]
0.5 2.2
0.75 3.2
1.0 4.2
1.5 6.0
2.0 6.8
3.0 9.6
5.0 16
Maximum constant output current I
[HP] [A]
0.5 2.2
0.75 3.2
1.0 4.2
1.5 6.0
2.0 6.8
3.0 9.6
5.0 16.0
Danfoss A/S © Rev. May/2014 All rights reserved.
Maximum constant output power at
INV.
230 V S
INV.
[kVA]
0.9
1.3
1.7
2.4
2.7
3.8
6.4
Maximum constant output power at
INV.
230 V S
INV.
[kVA]
0.9
1.3
1.7
2.4
2.7
3.8
6.4
1 1
9