2.1.6 Ordering numbers, 690 V, 50 Hz
IAHF,N Typical Motor Ordering Number Danfoss Frequency converter series *
[AMP] [kW] AHF 005 AHF 010 AQUA, HVAC,
Automation HO Automation NO
43 A 37, 45 130B2328 130B2293
72 A 55, 75 130B2330 130B2295 P37K-P45K P37K
101 A 90 130B2331 130B2296 P55-P75K P45K-P55K
144 A 110, 132 130B2333 130B2298 P90K-P110 P75K-P90K
180 A 160 130B2334 130B2299 P132 P110
217 A 200 130B2335 130B2300 P160 P132
289 A 250 130B2331 + 130B2333 130B2301 P200 P160
324 A 315 130B2333 + 130B2334 130B2302 P250 P200
370 A 400 130B23314+ 130B2335 130B2304 P315 P250
Table 2.6: AHF005 and AHF010, 690V, 50 Hz
⋆Please note that the matching of the typical Danfoss frequency converter and filter is pre-calculated based on 690V and assuming typical motor
load. FC 300 is based on an 160% torque application, while FC 100 and FC 200 series are based on 110% torque application.
The pre-calculated filter current may be varying from the input current ratings of FC 100, FC 200 and FC 300 series as stated in the respective
operating instructions, as these numbers are based on different operating conditions.
2.1.7 Calculation of the exact filter size needed
For optimal performance the harmonic filter should be sized for the mains input current to the frequency converter, i.e. the input current drawn based
on the expected load of the frequency converter and not the size of the frequency converter itself!
The mains input current to the frequency converter (IFC,L) can by calculated using the nominal motor current (IM,N) and displacement power factor (Cos
φ)) of the motor. Both data are normally printed on the nameplate of the motor. In the case where the nominal motor voltage (U M,N) is unequal to the
actual mains-mains voltage (UL) the calculated current must be corrected with the ratio between these voltages as shown in the equation below.
IFC
,
L
= 1.1 ×
IM
,
N
×
Cos
(ϕ)×
((
UM
,
N
)/(
UL
))
The harmonic filter chosen must have a nominal current (IAHF,N ) equal to or larger than the calculated frequency converter mains input current (IFC,L).
If several frequency converters are to be connected to the same filter, the harmonic filter must be sized according to the sum of the calculated mains
currents.
If the harmonic filter is sized for the load, and the motor of the corresponding frequency converter is changed, the current must be
re-calculated to avoid overload of the harmonic filter.
2 Description AHF 005/010 Operating Instructions
10
MG.80.C1.02 - VLT®is a registered Danfoss trademark
2
