VLT
®
2800 Series
3 x 380 - 480 Volt mains voltage
Typical shaft output
P
INV.
Max.
constant output
current I
INV.
Max. constant output power
at 400 V S
INV.
Type
[kW]
[HP]
[A]
[kVA]
2805
0.55
0.75
1.7
1.1
2807
0.75
1.0
2.1
1.7
2811
1.1
1.5
3.0
2.0
2815
1.5
2.0
3.7
2.6
2822
2.2
3.0
5.2
3.6
2830
3.0
4.0
7.0
4.8
2840
4.0
5.0
9.1
6.3
2855
5.5
7.5
12.0
8.3
2875
7.5
10.0
16.0
11.1
2880
11
15
24
16.6
2881
15
20
32
22.2
2882
18.5
25
37.5
26.0
■
Enclosure
All VLT 2800 units are supplied with IP 20
enclosure as standard.
This enclosure level is ideal for panel mounting
in areas where a high degree of protection is
required; at the same time IP 20 enclosures
allow side-by-side installation without any need
for extra cooling equipment.
IP 20 units can be upgraded with IP 21 / top
cover and/or NEMA 1 by fitting a terminal cover.
See ordering number for terminal cover under
Accessories for VLT 2800
.
In addition, VLT 2880-82 units are supplied with
Nema 1 enclosure as standard.
■
Brake
VLT 2800 is available with or without an integral
brake module. See also the section entitled
Brake
resistors
for ordering a Brake resistor.
■
Wobble function
The wobble function is used for winding applications
in the textile industries. All VLT 2800 frequency
converters are supplied with a wobble function as a
standard feature. The frequency converter is able to
operate a motor, which turns a grooved drum. During
winding, the grooved drum places the thread in the
correct position on the bobbin, in a diamond pattern.
For further information, see VLT 2800 Wobble
Instruction MI50JXYY.
■
RFI filter
VLT 2800 is available with or without an integral
1A RFI-filter. The integral 1A RFI filter complies
with EMC standards EN 55011-1A.
With an integral RFI filter there is compliance with EN
55011-1B with a max. 15-metre screened/armoured
motor cable on VLT 2803-2815 1 x 220-240 Volt.
VLT 2880-82 with integral 1B filter comply with
EMC standard EN 50011 - 1B
■
Harmonic filter
The harmonic currents do not affect power
consumption directly, but they increase the heat losses
in the installation (transformer, cables). That is why, in
a system with a relatively high percentage of rectifier
load, it is important to keep the harmonic currents at
a low level so as to avoid a transformer overload and
high cable temperature. For the purpose of ensuring
low harmonic currents, VLT 2822-2840 3 x 200-240
V and VLT 2805-2882 380-480 V are fitted with coils
in their intermediate circuit as standard. This reduces
the input current I
RMS
by typically 40 %.
Please note that 1 x 220-240 V units are not supplied
with coils in their intermediate circuit.
■
FC protocol
Danfoss frequency converters are able to fulfill
many different functions in a monitoring system.
The frequency converter can be integrated directly
in an overall surveillance system, which will
allow detailed process data to be transferred
via serial communication.
MG.28.E9.02 - VLT is a registered Danfoss trademark
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