Siemens CU240B-2 - Page 180

Advanced commissioning
6.2 Inverter control
Converter with the CU240B-2 and CU240E-2 Control Units
180 Operating Instructions, 01/2016, FW V4.7 SP6, A5E34259001B AC
Procedure
Set the following parameters to set the analog input as
current input with monitoring:
1.
Set p0756[0] = 3
This means that you define analog input 0 as current
input with wire breakage monitoring.
2.
Set p0757[0] = 6.0 (x1)
3.
Set p0758[0] = -100.0 (y1)
4.
Set p0759[0] = 12.0 (x2)
5.
Set p0760[0] = 100.0 (y2)
Defining the function of an analog input
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 based on its
index, e.g. parameter p0755[0] is assigned to analog input 0.
Table 6- 3 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 function of an analog input - example
To enter a supplementary setpoint via analog input AI
0,
you must interconnect
AI 0 with the signal source for the
supplementary setpoint:
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, see the parameter list and in the function block diagrams 9566 ff of the
List Manual.