Analog Outputs - Siemens SINAMICS G120 Operating Instructions Manual

Adapting the terminal strip

7.5 Analog outputs

7.5 Analog outputs
Analog output terminals
CO: rxxyy
Define the analog output type
The inverter offers a series of default settings, which you can select using parameter p0776:
Current output (factory setting)
Voltage output
Current output
If you change the analog output type, then the converter automatically selects the
appropriate scaling of the analog output. The linear scaling characteristic is defined using
two points (p0777, p0778) and (p0779, p0780).
Figure 7-4
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 7- 8
Parameter
p0777
p0778
p0779
p0780
82
p0776[0]
p0771[0]
0 mA ... +20 mA
0 V ... +10 V
+4 mA ... +20 mA
Examples for scaling characteristics
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]
Changing the function of the analog output
1. Define the analog output type using parameter
p0776 (e.g. voltage output -10 V ... 10 V or
current output 4 mA ... 20 mA).
2. Interconnect parameter p0771 with a
connector output of your choice (e.g. the
actual speed).
In the parameter list of the List Manual,
connector outputs are marked with "CO".
p0776[0] = 0
1
2
SINAMICS G120C frequency converter
Operating Instructions, 03/2012, FW V4.5, A5E02999804B AB