Advanced commissioning
6.3 Adapt the default setting of the terminal strip
Converter with the control units CU240D-2
112
Operating Instructions, 04/2018, FW V4.9 SP10, A5E34262100B AF
Table 6- 5
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
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 6- 6
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.
Specify deadband
Small signals of a few millivolts are often corrupted by interference in the cable. To be able
to enter a setpoint of exactly 0 V via an analog input, you must specify a deadband.
