Danfoss VLT AutomationDrive FC 301 Programming Manual page 523

Programming Guide | VLT® AutomationDrive FC 301/FC 302
Option Name
[0] Off
[1]* On
14-51 DC-link Compensation
Default value:
–
Setup: All setups
Change during True
operation:
The rectified AC-DC voltage in the DC link of the drive is associated with voltage ripples. These ripples can increase in magnitude
with increased load. These ripples are undesirable because they can generate current and torque ripples. A compensation method is
used to reduce these voltage ripples in the DC link. In general, DC-link compensation is recommended for most applications, but pay
attention when operating in field weakening as it can generate speed oscillations at the motor shaft. In field weakening, turn off DC-link
compensation.
Option Name
[0] Off
[1] On
[2] Advanced
14-52 Fan Control
Default value: [0] Auto
Setup:
All setups
Data type: Uint8
Select the minimum speed of the main fan.
Option Name
[0]* Auto
[1] On 50%
© 2024.09
Description
Parameter type:
Data type:
Description
Disables DC-link compensation.
Enables DC-link compensation.
Improved compensation of DC-link ripple caused by mains
frequency and phase imbalance.
NOTICE
Parameter 0-03 Regional Setting must be set correctly
according to the actual mains grid.
Parameter type:
Conversion index:
Change during operation:
Description
Select [0] Auto to run fan only when internal temperature in the
drive is in the range 35 °C (95 °F) to approximately 55 °C (131 °F).
The fan runs at low speed below 35 °C (95 °F), and at full speed at
approximately 55 °C (131 °F).
The fan always runs at 50% speed or above. The fan runs at 50%
speed at 35 °C (95 °F), and at full speed at approximately 55 °C
(131 °F).
AU275636650261en-003201 / 130R0334 |
Parameter Descriptions
Option
Uint8
Option
–
True
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