Danfoss iC2 Application Manual page 134

Application Guide | iC2-Micro Frequency Converters
Parameter
116
number:
Data type:
uint16
P 4.4.4.9 Low Speed Filter Time Const.
This time constant is used above 10% rated speed. Obtain quick control through a short damping time constant. However, if this value is
too short, the control gets unstable.
Default value:
Size Related
Parameter
115
number:
Data type:
uint16
P 4.4.4.10 Voltage Filter Time Const.
Use this parameter to reduce the influence of high frequency ripple and system resonance in the calculation of supply voltage. Without
this filter, the ripples in the currents can distort the calculated voltage and affect the stability of the system.
Default value:
Size Related
Parameter
117
number:
Data type:
uint16
P 4.4.4.11 Variable Torque Zero Speed Magnetization
Use this parameter along with P 4.4.4.12 Min Speed Normal Magnetizing [Hz] to obtain a different magnetizing current on the motor
when running at low speed. Enter a percentage value of the rated magnetizing current. If the setting is too low, the torque on the motor
shaft may be reduced.
Default value:
100
Parameter
150
number:
Data type:
uint16
Magn. current
90%
P 4.4.4.11 Variable Torque
Zero Speed Magnetization
P 4.4.4.12 Min Speed
Normal Magnetizing [Hz]
Figure 71: Motor Magnetization
P 4.4.4.12 Min Speed Normal Magnetizing [Hz]
Set the required frequency for normal magnetizing current. Use this parameter along with P 4.4.4.11 Variable Torque Zero Speed
Magnetization.
Default value:
1.0
134
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Hz
Parameter type:
s
Read/Write
Range (Size Related)
s
Read/Write
Range (Size Related)
s
Read/Write
Range (0–300)
%
Read/Write
Range (Size Related)
AB413939445838en-000301 / 130R1254