Siemens SINAMICS G120 Instructions d'exploitation télécharger pdf (Page 98)

Adapt terminal strip

5.4 Analog inputs

Inverter with CU240B-2 and CU240E-2 Control Units

96 Operating Instructions, 01/2011, FW 4.4, A5E02299792B AB

Parameter Description

p0756[0] = 3 Analog input type

Define analog input 0 as current input

with wire break monitoring.

Set DIP switch for AI

0 to current input

("I"):

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 Analog inputs wire break monitoring,

response threshold

p0757[0] = 6.0

p0758[0] = -100.0

Analog inputs, characteristic (x

, y

)

6 mA corresponds to -100 %

p0759[0] = 12.0

p0760[0] = 100.0

Analog inputs, characteristic (x

, y

)

12 mA corresponds to 100 %

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Define the significance of the analog input

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 5- 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.

Table 5- 7 Example:

 $, r0755 755.0

p2253

Analog input 0 is the source for the speed setpoint.

Advanced settings

When required, you can smooth the signal, which you read-in via an analog input, using

parameter p0753.

For more information, see the parameter list and in the function block diagrams 9566 ff of the

List Manual.

1 2 ... 93 94 95 96 97 98 99 100 101 102 103 ... 303 304

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Siemens SINAMICS G120 Instructions d'exploitation Page 98

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