Siemens SINAMICS G120 Operating Instructions Manual page 177
Low voltage inverters
built-in units with cu250s-2 control units and
encoder evaluation
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Parameters p0777 ... p0780 are assigned to an analog output via their index, e.g. parameters
p0777[0] ... p0770[0] belong to analog output 0.
Table 6-6
Parameter
p0777
p0778
p0779
p0780
Setting the characteristic
You must define your own characteristic if none of the default types match your particular
application.
Application example
Via analog output 0, the inverter should convert a signal in the value range 0 % ... 100 % into
an output signal 6 mA ... 12 mA.
Figure 6-7
Procedure
1. Set p0776[0] = 2
This defines analog output 0 as a current output.
2. Set p0777[0] = 0.0 (x1)
3. Set p0778[0] = 6.0 (y1)
4. Set p0779[0] = 100.0 (x2)
5. Set p0780[0] = 12.0 (y2)
The characteristic for the application example is set.
❒
Converter with the CU250S-2 Control Units
Operating Instructions, 04/2018, FW V4.7 SP10, A5E31759476B AG
Parameters for the scaling characteristic
Description
x coordinate of the 1st characteristic point [% of p200x]
p200x are the parameters of the reference variables, e.g. p2000 is the reference speed.
y coordinate of the 1st characteristic point [V or mA]
x coordinate of the 2nd characteristic point [% of p200x]
y coordinate of the 2nd characteristic point [V or mA]
Characteristics for the application example
Advanced commissioning
6.3 Adapt the default setting of the terminal strip
175
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