Siemens SINAMICS G220 - Page 426

Description of function
Analog inputs have the following properties:
• Type can be selected
The analog input can be operated as a current input or voltage input.
Parameter p0756[x] de󹪝nes the analog input type.
The converter o󹪜ers the following settings:
AI 0
Unipolar voltage input 0V…+10V p0756[0]= 0
Unipolar voltage input monitored +2V…+10V 1
Unipolar current input 0mA…+20mA 2
Unipolar current input monitored +4mA…+20mA 3
Bipolar voltage input ‑10V…+10V 4
No sensor connected --- 8
AI 1
Unipolar voltage input 0V…+10V p0756[1]= 0
Unipolar voltage input monitored +2V…+10V 1
Unipolar current input 0mA…+20mA 2
Unipolar current input monitored +4mA…+20mA 3
Bipolar voltage input ‑10V…+10V 4
No sensor connected --- 8
• Scaling
Scaling is used to adapt the analog input to the machine or the existing components. For
example, if the entire input range of the voltage or the current is not utilized, the input value
can still be scaled to 100%.
The converter converts the current or voltage that the analog input reads in to a percentage
value using a characteristic.
If the analog input type is changed with parameter p0756, the converter chooses the
appropriate scaling of the analog input independently.
The linear scaling characteristic is de󹪝ned by two points (p0757, p0758) and (p0759,
p0760). Parameters p0757…p0760 are assigned to an analog input by their index, e.g.
parameters p0757[0]…p0760[0] belong to analog input0.
7PMUBHFJOQVU77$VSSFOUJOQVUN"N"
7

QQ
Y
Q
Y
Q
N"
Y
Q
Z
Q
Y
Q
Z
Q
Z
Q
Z
Q
Figure14-36 Scaling for analog input
Functions
14.8Inputs/outputs
SINAMICS G220 converter
424 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB