Siemens SINAMICS G120 Operating Instructions Manual page 82

Adapting the terminal strip
7.4 Analog inputs
Table 7- 5
Parameter
p0757
p0758
p0759
p0760
p0761
You must define your own characteristic if none of the default types match your particular
application.
Example
The inverter should convert a 6 mA ... 12 mA signal into the value range -100 % ... 100 %
via analog input 0. The wire break monitoring of the inverter should respond when 6 mA is
fallen below.
Parameter
p0756[0] = 3
After changing p0756 to the value 3, the inverter sets the scaling characteristic parameters to the
following values:
p0757[0] = 4,0; p0758[0] = 0,0; p0759[0] = 20; p0760[0] = 100
Adapt the characteristic:
p0761[0] = 6.0
p0757[0] = 6.0
p0758[0] = -100.0
p0759[0] = 12.0
p0760[0] = 100.0
80
Parameters for the scaling characteristic and wire break monitoring
Description
x-coordinate of 1st characteristic point [V or mA]
y coordinate of the 1st characteristic point [% of p200x]
p200x are the parameters of the reference variables, e.g. p2000 is the reference
speed.
x-coordinate of 2nd characteristic point [V or mA]
y-coordinate of 2nd characteristic point [% of p200x]
Wire breakage monitoring response threshold
Description
Analog input type
Define analog input 0 as current input
with wire break monitoring.
Analog inputs wire break monitoring,
response threshold
Analog inputs, characteristic (x
6 mA corresponds to -100 %
Analog inputs, characteristic (x
12 mA corresponds to 100 %
Set DIP switch for AI
0 to current input
("I"):
, y )
1 1
, y )
2 2
SINAMICS G120C frequency converter
Operating Instructions, 03/2012, FW V4.5, A5E02999804B AB