Siemens SINAMICS G120D Series - Analog Inputs

Advanced commissioning
7.2 Inverter control
7.2.1.4
Analog inputs
Overview
Changing the
function of the analog input
1.
Define the analog input type using
parameter p0756 to voltage input
0 V … 10 V.
2.
Specify the function of the analog input
by interconnecting parameter p0755 with
a connector input CI of your choice.
Define the analog input type
The converter offers a series of default settings, which you can select using parameter
p0756:
AI 0
Unipolar voltage input
No sensor connected
0
V … +10 V
p0756[0]
=
0
8
AI 1
Unipolar voltage inputt
No sensor connected
0
V … +10 V
p0756[1]
=
0
8
You can define your own characteristic that matches your particular application. The linear
scaling characteristic is defined using two points (p0757, p0758) and (p0759, p0760).
Parameters p0757 … p0760 are assigned to an analog input via their index, e.g. parameters
p0757[0] … p0760[0] belong to analog input 0.
Figure 7-4 Scaling characteristics
Table 7- 3 Parameters for the scaling characteristic and wire break monitoring
Parameter
Description
p0757
x-coordinate of 1st characteristic point [V]
p0758
y coordinate of the 1st characteristic point [% of p200x]
p200x are the parameters of the reference variables, e.g. p2000 is the reference
speed.
p0759
x-coordinate of 2nd characteristic point [V]
p0760
y-coordinate of 2nd characteristic point [% of p200x]
p0761
Wire breakage monitoring response threshold
Converter with control units CU240D-2
122 Operating Instructions, 04/2015, FW V4.7.3, A5E34262100B AB