5.3.2 Ordering Numbers: Brake Resistors 40%
FC 360
P
m (HO)
R
min
R
br. nom
R
rec
P
br avg
Period
Cable cross
section
2
*
Therm.
relay
Max. brake
torque
with R
rec
*
T4
[kW]
[
Ω
]
[
Ω
]
[
Ω
]
[kW]
175Uxxxx
[s]
[mm
2
]
[A]
[%]
HK37
0.37
890
1041.98
989
0.127
3101
120
1.5
0.4
139
HK55
0.55
593
693.79
659
0.191
3308
120
1.5
0.5
131
HK75
0.75
434
508.78
483
0.260
3309
120
1.5
0.7
129
H1K1
1.1
288
338.05
321
0.391
3310
120
1.5
1
132
H1K5
1.5
208
244.41
232
0.541
3311
120
1.5
1.4
145
H2K2
2.2
139
163.95
155
0.807
3312
120
1.5
2.1
131
H3K0
3
100
118.86
112
1.113
3313
120
1.5
2.7
131
H4K0
4
74
87.93
83
1.504
3314
120
1.5
3.7
128
H5K5
5.5
54
63.33
60
2.088
3315
120
1.5
5
127
H7K5
7.5
38
46.05
43
2.872
3316
120
1.5
7.1
132
H11K
11
27
32.99
31
4.226
3236
120
2.5
11.5
130
H15K
15
19
24.02
22
5.804
3237
120
2.5
14.7
129
H18K
18.5
16
19.36
18
7.201
3238
120
4
19
132
H22K
22
16
18.00
17
8.604
3203
120
4
23
128
H30K
30
11
14.58
13
11.525
3206
120
10
32
150
H37K
37
9
11.71
11
14.344
3210
120
10
38
146
H45K
45
8
9.58
9
17.540
3213
120
16
47
150
H55K
55
6
7.80
7
21.543
3216
120
25
61
150
H75K
75
4
5.68
5
29.581
3219
120
35
81
150
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
PEAK
and the ripple current
Δ
I to the
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.
Type Code and Selection
VLT
®
AutomationDrive FC 360 Design Guide
66
MG06B202 - VLT
®
is a registered Danfoss trademark
5
5
