Scaled value

At the analog input, the measured physical value of the analog input is converted into a scaled value without unit for the voltage input/current input according to the following formula:

Actual value	Parameter Input voltage or Input current
Offset	Parameter Voltage offset scaling or Current offset scaling
Conversion factor	Fixed value: for voltage: 1000/1 V for current: 500/1 mA
Numerator scaling	Parameter Numerator scaling
Denominator scaling	Parameter Denominator scaling

The scaled value without unit is converted into a setpoint according to the following formula:

[Setpoint]	The unit depends on the position at which the analog setpoint is to be used.
Scaled value	Parameter Scaled value

The calculated setpoint is used like a process output data word. It can be selected as source of the setpoint in the parameter group Setpoints > Setpoint value connection.

Example: Calculation of a speed setpoint

The following quantities are given in the example:

Quantity	Value
Function of the analog input	0 – 10 V input
Actual value (parameter Input voltage)	7.5 V
Offset (parameter Voltage offset scaling)	2.5 V
Conversion factor	1000/1 V
Numerator scaling	1
Denominator scaling	5
User unit	Rev. min-1
Number of decimal places	2

The scaled value is calculated as follows:

The scaled value is used as speed setpoint in the setpoint connection after the following conversion:

[Speed setpoint] = rev. min-1