Siemens SINAMICS G120D Series - Page 123

Advanced commissioning
7.2 Inverter control
Defining the analog input function
You define the analog input function by interconnecting a connector input of your choice with
parameter p0755 . Parameter p0755 is assigned to the particular analog input via its index,
e.g. parameter p0755[0] is assigned to analog input 0.
Table 7- 4 Connector inputs (CI) of the inverter (selection)
CI
Significance
CI
Significance
p1070
Main setpoint
p1522
Torque limit, upper
p1075 Supplementary setpoint p2253 Technology controller setpoint 1
p1503
Torque setpoint
p2264
Technology controller actual value
p1511 Supplementary torque 1
A complete list of the connector inputs is provided in the List Manual.
Defining the analog input function - example
In order to use the analog input AI
0 as the source for the
supplementary setpoint, you have to set p1075 = 755[0].
Advanced settings
Signal smoothing
When required, you can smooth the signal, which you read-in via an analog input, using
parameter p0753.
For more information, please see the parameter list and the function block diagrams 2251 f
of the List Manual.
Skip frequency band
Skip frequency band of the analog input
Interferences in the cable can corrupt
small signals of a few millivolts. To be
able to enter a setpoint of exactly 0 V via
an analog input, you must specify a skip
f
requency band.
p0764[0]
Skip frequency band of the analog input AI 0 (factory setting: 0)
p0764[1]
Skip frequency band of the analog input AI 1 (factory setting: 0)
Using an analog input as digital input
An analog input can also be used as digital input. See also Section: Digital inputs
(Page 117).
Converter with control units CU240D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34262100B AB
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