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Type Code and Selection
5.3.2 Ordering Numbers: Brake Resistors 40%
FC 360
T4
HK37
HK55
HK75
H1K1
H1K5
5
5
H2K2
H3K0
H4K0
H5K5
H7K5
H11K
H15K
H18K
H22K
H30K
H37K
H45K
H55K
H75K
Table 5.5 FC 360 - Mains: 380-480 V (T4), 40% Duty Cycle
5.4 Sine-wave Filters
When a motor is controlled by a frequency converter,
resonance noise will be heard from the motor. This noise,
which is the result of the design of the motor, arises every
time an inverter switch in the frequency converter is
activated. The frequency of the resonance noise thus
corresponds to the switching frequency of the frequency
converter.
For the FC 360, Danfoss can supply a Sine-wave filter to
dampen the acoustic motor noise.
The filter reduces the ramp-up time of the voltage, the
peak load voltage U
motor, which means that current and voltage become
almost sinusoidal. Consequently, the acoustic motor noise
is reduced to a minimum.
The ripple current in the Sine-wave Filter coils, will also
cause some noise. Solve the problem by integrating the
filter in a cabinet or similar.
66
P
R
R
m (HO)
min
br. nom
[kW]
[Ω]
[Ω]
0.37
890
1041.98
0.55
593
693.79
0.75
434
508.78
1.1
288
338.05
1.5
208
244.41
2.2
139
163.95
3
100
118.86
4
74
87.93
5.5
54
63.33
7.5
38
46.05
11
27
32.99
15
19
24.02
18.5
16
19.36
22
16
18.00
30
11
14.58
37
9
11.71
45
8
9.58
55
6
7.80
75
4
5.68
and the ripple current ΔI to the
PEAK
MG06B202 - VLT
®
VLT
AutomationDrive FC 360 Design Guide
R
P
rec
br avg
[kW]
175Uxxxx
[Ω]
989
0.127
3101
659
0.191
3308
483
0.260
3309
321
0.391
3310
232
0.541
3311
155
0.807
3312
112
1.113
3313
83
1.504
3314
60
2.088
3315
43
2.872
3316
31
4.226
3236
22
5.804
3237
18
7.201
3238
17
8.604
3203
13
11.525
3206
11
14.344
3210
9
17.540
3213
7
21.543
3216
5
29.581
3219
®
is a registered Danfoss trademark
Period
Cable cross
Therm.
relay
section
2
*
[s]
[A]
[mm
2
]
120
1.5
0.4
120
1.5
0.5
120
1.5
0.7
120
1.5
1
120
1.5
1.4
120
1.5
2.1
120
1.5
2.7
120
1.5
3.7
120
1.5
5
120
1.5
7.1
120
2.5
11.5
120
2.5
14.7
120
4
19
120
4
23
120
10
32
120
10
38
120
16
47
120
25
61
120
35
81
Max. brake
torque
with R
*
rec
[%]
139
131
129
132
145
131
131
128
127
132
130
129
132
128
150
146
150
150
150
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