Typical shaft output
P
INV.
Maximum constant output current I
INV.
Maximum 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
Table 1.3 3x380-480 V Mains Voltage
1.7.2 Enclosure
All VLT 2800 units are supplied with IP20 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 IP20 enclosures allow side-by-side installation without
any need for extra cooling equipment.
IP20 units can be upgraded with IP21/top cover and/or
NEMA 1 by fitting a terminal cover. See ordering number
for terminal cover in
chapter 1.10 Accessories for VLT 2800
In addition, VLT 2880-82 and 2840 PD2 units are supplied
with NEMA 1 enclosure as standard.
1.7.3 Brake
Danfoss VLT 2800 is available with an integral brake
module (does not apply to 2822 and 2840 in 200 V with
combined single-phase/3-phase supply - type code PD2).
See also
chapter 1.11.13 Brake Resistors
for brake resistor
ordering numbers.
1.7.4 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 maximum 15-metres screened/armoured
motor cable on VLT 2803-2815 1x220-240 V.
VLT 2880-82 with integral 1B filter comply with EMC
standard EN 50011-1B.
1.7.5 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 3x200-240 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 1x220-240 V units up to 1.5 kW are not
supplied with coils in their intermediate circuit.
1.7.6 Control Unit
The frequency converter is always supplied with an
integral control unit.
All displays are in the form of a 6-digit LED display capable
of showing one item of operating data continuously
during normal operation. As a supplement to the display,
there are 3 indicator lights for voltage (ON), warning
(WARNING) and alarm (ALARM). Most of the frequency
converter's parameter set-ups can be changed immediately
via the integral control panel.
An LCP 2 control panel to be connected via a plug to the
front of the frequency converter is available as an option.
The LCP 2 control panel can be installed up to 3 metres
away from the frequency converter, e.g. on a front panel,
with the accompanying mounting kit.
All displays of data are via a 4-line alpha-numerical display,
which in normal operation is able to show 4 operating
data items and 3 operation modes continuously. During
programming, all the information required for quick,
efficient parameter set-up of the frequency converter is
displayed. As a supplement to the display, there are 3
Introduction to VLT 2800
Design Guide
10
Danfoss A/S © Rev. May/2014 All rights reserved.
MG27E402
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