Danfoss iC2 - 7.5.3.3 U;f Curve (Menu Index 4.4.3)

Application Guide | iC2-Micro Frequency Converters
Enter the maximum allowed current when using AC brake to avoid overheating of motor windings.
Default value: 100 Parameter type: Range (0–160)
Parameter
number:
216 Unit: %
Data type: uint16 Access type: Read/Write
 NOTICE
The parameter is only available for induction motors.
P 4.4.2.3 AC Brake Voltage Control Kp
Use the parameter to set AC brake power capability (set ramp-down time when inertia is constant). If the DC-link voltage is not higher
than the DC-link voltage warning value, the generator torque can be adjusted with this parameter. The higher the AC-brake gain is, the
stronger the brake capability is. It equals 1.0 means that there is no AC-brake capability.
Default value: 1.4 Parameter type: Range (1.0–2.0)
Parameter
number:
188 Unit: –
Data type: uint16 Access type: Read/Write
 NOTICE
If there is continuous generator torque, there is a higher risk of causing high motor current which leads to a hot motor. Use P
4.4.2.2 AC Brake, Max current to protect the motor from overheating.
7.5.3.3 U/f Curve (Menu Index 4.4.3)
P 4.4.3.1 Voltage Point
Enter the voltage at each frequency point to manually form a U/f characteristic matching the motor. The frequency points are defined in
P 4.4.3.2 Frequency Point.
Default value: Size Related Parameter type: Range (0–1000)
Parameter
number:
155 Unit: V
Data type: uint16 Access type: Read/Write
P 4.4.3.2 Frequency Point
Enter the frequency points to manually form a U/f characteristic matching the motor. The voltage at each point is defined in P 4.4.3.1
Voltage Point.
Default value: Size Related Parameter type: Range (Size Related)
Parameter
number:
156 Unit: Hz
Data type: uint16 Access type: Read/Write
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