Danfoss VLT AutomationDrive FC 301 Programming Manual page 526

VLT AutomationDrive FC 301/302
Programming Guide
Option Name Description
[5] rad Radian.
[6] % Percent.
[7] qc Quad count, which is ¼ of an encoder pulse when using quadrature encoder signal.
Parameter 17-71 Position Unit Scale
Table 942: Parameter 17-71 Position Unit Scale
17-71 Position Unit Scale
Default value: 0
Conversion index: 0
Enter the scaling factor for the position values. The scaling function multiplies the readout values by 10
parameter. For example, if x = 2, the value 5 is shown as 500. The elements of the array are:
• Index 0 is the scaling factor for readout and settings of position values in parameters or in a fieldbus. Index 1 contains excep-
tions.
•
Index 1 is the scaling factor for readout of position error (parameter 16-08 Position Error) and for the value of parameter 3-08 On
Target Window.
Parameter 17-72 Position Unit Numerator
Table 943: Parameter 17-72 Position Unit Numerator
17-72 Position Unit Numerator
Default value: 1024 Parameter type: Range, -2147483648 - 2147483647
Conversion index: 0 Data type: Int32
This parameter is the numerator in the equation which defines the relation between 1 motor revolution and physical movement of
machine.
Par . 17 − 72
Position unit =
Par . 17 − 73
Example: Consider a turn table application. The motor makes 10 revolutions when the table makes 1 revolution. The position unit is
a degree. For this setup, enter the following values:
•
Parameter 17-72 Position Unit Numerator = 360
•
Parameter 17-73 Position Unit Denominator = 10
Set the physical unit for position values in parameter 17-70 Position Unit.
Parameter 17-73 Position Unit Denominator
Table 944: Parameter 17-73 Position Unit Denominator
17-73 Position Unit Denominator
Default value: 1 Parameter type: Range, -2147483648 - 2147483647
Conversion index: 0 Data type: Int32
See parameter 17-72 Position Unit Numerator.
526 | Danfoss A/S © 2022.12
Parameter type: Range, -3 - 3, Array [2]
Data type: Int8
× Motor revolutions
Parameter Descriptions
Setup: All setups
Change during operation: False
x
, where x is the value of this
Setup: All setups
Change during operation: False
Setup: All setups
Change during operation: False
AU275636650261en-000101 / 130R0334