Siemens SINAMICS G120 Operating Instructions Manual page 85

You must define your own characteristic if none of the default types match your particular
application.
Example:
The converter should convert a signal in the value range -100 % ... 100 % into a
6 mA ... 12 mA output signal via analog output 0.
Parameter
p0776[0] = 2
After changing p0776 to the value 2, the converter sets the scaling characteristic parameters to the
following values:
p0777[0] = 0.0; p0778[0] = 4.0; p0779[0] = 100.0; p0780[0] = 20.0
Adapt the characteristic:
p0777[0] = 0.0
p0778[0] = 6.0
p0779[0] = 100.0
p0780[0] = 12.0
Defining the analog output function
You define the analog output function by interconnecting parameter p0771 with a connector
output of your choice. Parameter p0771 is assigned to the particular analog input via its
index, e.g. parameter p0771[0] is assigned to analog output 0.
Table 7- 9
CO
r0021
r0024
r0025
A complete list of the connector outputs is provided in the List Manual.
Table 7- 10
Output the converter output current via
analog output 0.
|i|
For more information, please see the parameter list and the function block diagrams 9572 f
of the List Manual.
SINAMICS G120C frequency converter
Operating Instructions, 03/2012, FW V4.5, A5E02999804B AB
Description
Analog output, type
Define analog output 0 as current output.
Analog output, characteristic (x
0.0 % corresponds to 6 mA
Analog output, characteristic (x
100 % corresponds to 12 mA
Connector outputs (CO) of the converter (selection)
Significance
Actual frequency
Output actual frequency
Output actual frequency
Example:
p0771
r0027 27
, y )
1 1
, y )
2 2
CO Significance
r0026 Actual DC link voltage
r0027 Output current
With Operator Panel In STARTER
Set p0771 = 27 Go online with STARTER and
select "inputs/outputs". Change
the output function via the
corresponding screen form.
Adapting the terminal strip
7.5 Analog outputs
83