Special Conditions; Aggressive Environments - Danfoss VLT 2800 Quick Manual

1 Quick Guide
Max. cross section to control wires, rigid wire
1
Max. cross section to control cables, flexible cable
Max. cross section to control cables, cable with enclosed core
When complying with EN 55011 1A and EN 55011 1B the motor cable must in certain
instances be reduced. See EMC emission.
Control characteristics:
Frequency range
Resolution of output frequency
Repeat accuracy of
System response time (terminals 18, 19, 27, 29, 33)
Speed control range (open loop)
Speed control range (closed loop)
Speed accuracy (open loop)
Speed accuracy (closed loop)
All control characteristics are based on a 4-pole asynchronous motor
Surroundings:
Enclosure
Enclosure with options
Vibration test
Max. relative humidity
Ambient temperature
Derating for high ambient temperature, see special conditions in the Design Guide
Min. ambient temperature during full-scale operation
Min. ambient temperature at reduced performance
Temperature during storage/transport
Max. altitude above sea level
Derating for high air pressure, see special conditions in the Design Guide
EMC standards, Emission
EMC standards, Immunity
See section on special conditions in the Design Guide
Safeguards:
•
•

1.12 Special Conditions

1.12.1 Aggressive Environments

Aggressive gases, such as sulphur, nitrogen and chlorine compounds, together with high humidity
and temperature, facilitate possible chemical processes on the components of the frequency con-
verter. These chemical processes quickly impact and damage the electronics. In these areas,
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Precise start/stop
EN 61000-6-1/2, EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN
Electronic thermal motor protection against overload.
Temperature monitoring of the power module ensures that the frequency converter cuts
out if the temperature reaches 100 °C. An overload temperature cannot be reset until
the temperature of the power module is below 70 °C.
The frequency converter is not to be installed in environments, where liquids, par-
ticles or gases are in the air that would impact and damage the electronics. Unless
the necessary measures are taken to protect the frequency converter, there is a risk
of stoppages, which reduce the service life of the frequency converter.
1.5 mm
(terminals 18, 19)
150 - 3600 rpm: Max. error of ±23 rpm
30 - 3600 rpm: Max. error of ±7.5 rpm
Max. 45 °C (24-hour average max. 40 °C)
EN 61000-6-4, EN 61800-3, EN 55011
61000-4-5, EN 61000-4-6, EN 61800-3
VLT 2800 Quick Guide
2 2
/16 AWG (2 x 0.75 mm )
2
1 mm /18 AWG
0.5 mm 2 /20 AWG
0.2 - 132 Hz, 1 - 1000 Hz
0.013 Hz, 0.2 - 1000 Hz
± 0.5 msec
26.6 msec
1:10 of synchronous speed
1:120 of synchronous speed
IP 20
NEMA 1
0.7 g
5% - 93% during operation
0 °C
- 10 °C
-25 - +65/70 °C
1000 m