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 ΔI 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
55