FC101 Design Guide

Iout [%]
f
sw [kHz]
20
%
2 4 6 8 10 12
40
%
60 %
80 %
40
o
C
45
o
C
50
o
C
100 %
110 %
130BC241.10
Figure 3.49 37 kW (50 hp), 400 V, Enclosure Size I6, IP54
Iout [%]
f
sw [kHz]
20
%
2 4 6 8 10 12
40
%
60 %
80 %
40
o
C
45
o
C
50
o
C
100 %
110 %
130BC242.10
Figure 3.50 45–55 kW (60–74 hp), 400 V, Enclosure Size I7,
IP54
Iout [%]
f
sw [kHz]
20
%
2 4 6 8 10 12
40
%
60 %
80 %
40
o
C
45
o
C
50
o
C
100 %
110 %
130BC243.10
Figure 3.51 75–90 kW (100–120 hp), 400 V, Enclosure Size I8,
IP54
If the motor or the equipment driven by the motor - for
example, a fan - makes noise or vibrations at certain
frequencies, congure the following parameters or
parameter groups to reduce or eliminate the noise or
vibrations:
•
Parameter group 4-6* Speed Bypass.
•
Set parameter 14-03 Overmodulation to [0] O.
•
Switching pattern and switching frequency
parameter group 14-0* Inverter Switching.
•
Parameter 1-64 Resonance Dampening.
The acoustic noise from the frequency converter comes
from 3 sources:
•
DC-link coils.
•
Integral fan.
•
RFI lter choke.
Enclosure size
Level [dBA]
1)
H1 43.6
H2 50.2
H3 53.8
H4 64
H5 63.7
H6 71.5
H7 67.5 (75 kW (100 hp) 71.5 dB)
H8 73.5
H9 60
H10 62.9
I2 50.2
I3 54
I4 67.4
I6 70
I7 62
I8 65.6
Table 3.3 Typical Values Measured at a Distance of 1 m (3.28 ft)
from the Unit
1) The values are measured under the background of 35 dBA noise
and the fan running with full speed.
The frequency converter has been tested according to the
procedure based on the shown standards, Table 3.4.
The frequency converter complies with the requirements
that exist for units mounted on the walls and
oors of
production premises, and in panels bolted to walls or
oors.
IEC/EN 60068-2-6 Vibration (sinusoidal) - 1970
IEC/EN 60068-2-64 Vibration, broad-band random
Table 3.4 Standards
Product Overview
VLT
®
HVAC Basic Drive FC 101
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