Danfoss VLT AutomationDrive FC 301 Programming Manual page 581

VLT AutomationDrive FC 301/302
Programming Guide
the other direction and repeats the current integration. On comparing the 2 integrated currents, the lift evacuates in the direction
which requires the least current.
Parameter 30-25 Measurement Duration
Table 1082: Parameter 30-25 Measurement Duration
30-25 Measurement Duration
Default value: 0.000 s
Conversion index: -3
Duration of current integration measurement. The measurement is done in both directions. The direction with the lowest measure-
ment value is selected by the drive.
Parameter 30-26 Delay Before Measurements
Table 1083: Parameter 30-26 Delay Before Measurements
30-26 Delay Before Measurements
Default value: 0.000 s
Conversion index: 0
Delay before current measurement. Allows to avoid mismatch in measurements caused by mechanical friction during opening of
mechanical brakes.
Parameter 30-27 Light Load Speed [%]
Table 1084: Parameter 30-27 Light Load Speed [%]
30-27 Light Load Speed [%]
Default value: 0%
Conversion index: 0
Use this parameter when the light-load detection is active to define the speed during current measurement. Enter the reference
speed during the light-load detection. The value is a percentage of nominal motor speed in parameter 1-25 Motor Nominal Speed.
For standard asynchronous motors, the synchronous speed is used instead of parameter 1-25 Motor Nominal Speed due to slip.
Parameter 30-28 Evacuation Speed [%]
Table 1085: Parameter 30-28 Evacuation Speed [%]
30-28 Evacuation Speed [%]
Default value: 0%
Conversion index: 0
Speed for evacuation after detection of light-load direction.
Parameter 30-29 Ramp Time
Table 1086: Parameter 30-29 Ramp Time
30-29 Ramp Time
Default value: Size related
Conversion index: -2
Ramp times during evacuation and measurement sequences.
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Parameter type: Range, 0.000 - 10.000 s
Data type: Uint32
Parameter type: Range, 0.000 - 10.000 s
Data type: Uint16
Parameter type: Range, 0 - 100%
Data type: Uint16
Parameter type: Range, 0 - 100%
Data type: Uint16
Parameter type: Range, 0.01 - 3600 s
Data type: Uint32
Parameter Descriptions
Setup: All setups
Change during operation: True
Setup: All setups
Change during operation: True
Setup: All setups
Change during operation: True
Setup: All setups
Change during operation: True
Setup: All setups
Change during operation: True
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