Specifies the data source of the analog output. Select the required source from the drop-down menu.
INFORMATION
Various operating modes/scaling are available for MOVI‑C® decentralized drive electonics in the DBC communication variant. For a description of the functions, refer to the operating instructions of the respective device. You can download the documentation from the SEW-EURODRIVE website (www.sew-eurodrive.com) in various languages.
Calculating the output value at the analog output
The physical output value at the analog output (voltage output/current output) is calculated from the quantities without units in the device according to the following formula:
[Output value]
= V or mA
Raw value
Source value without units
Conversion factor
Fixed value:
for voltage: 1 V/1000
for current: 1 mA/500
Numerator scaling
Parameter Numerator scaling
Denominator scaling
Parameter Denominator scaling
Offset
Parameter Voltage offset scaling or Current offset scaling
The raw value is the measured source value without units scaled with the number of decimal places:
Source value
Quantity of parameter Data source without unit
Number of decimal places
The number of decimal places depends on the position at which the analog setpoint is to be used:
For use with user unit (e.g. speed setpoint), it is defined by the user in the parameter Number of decimal places (parameter group Drive trains > Drive train DT > User unit).
For use with system units (e.g. torque setpoint), it is defined by the inverter and can be determined via the tool tip of the parameter.
Example: Calculating an output voltage
The following quantities are given in the example:
Quantity
Value
Function of the analog output
+/- 10 V output
Data source of the analog output
Actual speed in user units
Current actual speed from the parameter Speed as source value (parameter group Diagnostics > Process values > Active drive train)