14.8.3 Analog output
Overview
An analog output can either output a voltage or a current signal. A signal interconnection
denes the function of the analog output. Based on an adjustable characteristic, the converter
converts an internal percentage value into a voltage or current signal.
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Figure14-38 Function of an analog output
Description of function
The analog output has the following properties:
• Type can be selected
To adapt the analog output to the external control system, the analog output can be operated
as a current output or voltage output. Parameter p0776 denes the analog output type.
AO 0
Unipolar current output 0mA…+20mA p0776[0]= 0
Unipolar voltage output 0V…+10V 1
Unipolar current output monitored +4mA…+20mA 2
• Function can be set
The interconnection of a numeric signal source of the converter with parameter p0771
denes the function of an analog output.
Frequently used numeric signal sources of the converter:
Parameter Description
r0021 Actual speed smoothed
r0025 Output voltage smoothed
r0026 DC link voltage smoothed
r0027 Absolute actual current smoothed
r0063 Speed actual value
• Smoothing can be set
Parameter p0773 eects a smoothing of the output signal using a PT1 lter. This allows
strong uctuations or short-term peaks to be suppressed.
• Absolute-value generation can be set
Parameter p0775 represents the amount of the output value.
• Inversion of the analog output signal
Binary signal sink c0782 inverts the analog output signal.
Functions
14.8Inputs/outputs
SINAMICS G220 converter
428 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB