Parameter Description

Issue 01/06

r0755[2]

CO: Act. ADC after scal. [4000h]

 

Min:

-

 

Datatype: I16

Unit: -

Def:

-

 

P-Group: TERMINAL

 

Max:

-

Displays analog input, scaled using ASPmin and ASPmax.

Level

2

Analog setpoint (ASP) from the analog scaling block can vary from min. analog setpoint (ASPmin) to a max. analog setpoint (ASPmax) as shown in P0757 (ADC scaling).

The largest magnitude (value without sign) of ASPmin and ASPmax defines the scaling of 16384.

By associating parameter r0755 with an internal value (e.g. frequency setpoint), a scaled value is calculated internally by the MM4. The frequency value is calculated using the following equation:

ADC

%

ASPmax

 

10 V

V

 

ASPmin

 

 

 

 

 

 

r0755 [Hex]

r0755 [Hz]

r0755[Hz] =

r0755[Hex]

P2000

max (

 

ASPmax

 

,

 

ASPmin

 

)

 

 

 

 

 

 

4000 [Hex]

100%

 

 

 

 

 

 

 

 

 

 

 

 

Index:

r0755[0] : Analog input 1 (ADC 1)

r0755[1] : Analog input 2 (ADC 2)

Example:

Case a:

-ASPmin = 300 %, ASPmax = 100 % then 16384 represents 300 %.

-This parameter will vary from 5461 to 16384.

Case b:

-ASPmin = -200 %, ASPmax = 100 % then 16384 represents 200 %.

-This parameter will vary from -16384 to +8192.

%

4000h = max( ASPmax , ASPmin )

 

 

 

 

 

%

 

 

 

4000 h

16384 dez

 

300 %

 

 

 

ASPmax

 

 

 

 

 

300 %

a

 

 

 

 

 

 

 

 

 

 

 

ASPmin

 

 

ASPmax

 

 

 

100 %

 

V

100 %

 

 

V

0

 

0

 

 

10 V

mA

 

 

10 V mA

 

 

 

b

 

20 mA

 

 

 

20 mA

-200 %

 

 

ASPmin

7FFF h

-16383 dez

 

 

 

 

-200 %

 

Note:

-This value is used as an input to analog BICO connectors.

-ASPmax represents the highest analog setpoint (this may be at 10 V).

-ASPmin represents the lowest analog setpoint (this may be at 0 V).

Details:

See parameters P0757 to P0760 (ADC scaling)

P0756[2]

Type of ADC

 

 

Min:

0

 

CStat:

CT

Datatype: U16

Unit: -

Def:

0

 

P-Group:

TERMINAL

Active: first confirm

QuickComm.: No

Max:

4

Level

2

Defines type of analog input and also enables analog input monitoring.

To switch over from voltage to current analog input it is not sufficient to merely modify parameter P0756. Rather, the DIPs on the terminal board must also be set to the correct position. The DIP settings are as follows:

-OFF = voltage input (10 V)

-ON = current input (20 mA)

Allocation of DIPs to analog inputs is as follows:

-DIP on left (DIP 1) = Analog input 1

-DIP on right (DIP 2) = Analog input 2

88

MICROMASTER 440 Parameter List

6SE6400-5BB00-0BP0

Page 88
Image 88
Siemens 440 manual R07552 CO Act. ADC after scal h, P07562 Type of ADC, Min Datatype Unit Def Group Terminal Max