Chapter 7 Usage of Various Functions

7.2.2 A/D Conversion module

1) Performance specifications

The performance specifications of the analog input module are following.

 

 

Item

Specifications

 

 

 

Voltage

010VDC ( input resistance 1 )

 

 

 

 

 

 

 

 

Current

DC 420 ( input resistance 250)

Analog

 

 

DC 020 ( input resistance 250))

 

 

 

input

 

 

Voltage/Current

-.Setting by input terminal

 

 

 

(When current input is used, short the V and I terminal)

 

 

 

Selection

 

 

 

- Voltage/Current is selected by KGLWIN parameter

 

 

 

 

 

 

 

 

Digital output

12bit binary (04000)

 

 

 

 

 

Maximum

 

 

010VDC

2.5 (1/4000)

 

 

 

 

 

 

DC 020

5 (1/4000)

resolution

 

 

 

 

 

 

 

 

DC 420

5 (1/3200)

 

 

 

 

 

 

Overall accuracy

±0.5% [Full Scale]

 

 

 

Max. conversion speed

1 /CH + scan time

 

 

 

Max. absolute input

Voltage : ±15V, Current : ±25

 

 

 

Number of analog input point

4channels/1module

 

 

 

 

 

 

 

 

 

Between input terminal and PLC power supply

 

Isolation

: Photo coupler isolation

 

 

 

 

(No isolation between channels)

 

 

 

Terminal connected

2 points/16 points terminal block

 

 

 

 

 

Current

 

 

+5V

100mA

Consumption

 

 

 

 

 

 

 

External Power

Voltage

DC 21.6 ~ 26.4V

 

 

Current

 

supply

 

 

100

 

 

 

consumption

 

 

 

 

 

Weight

300g

 

 

 

 

 

Remark

Offset/Gain value can’t be changed, because it is fixed

Analog inputting is set the current since this is manufactured.

It is possible to use to extend max.3 modules

7-49

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Image 133
LG Electronics 120S user manual Usage of Various Functions 2 A/D Conversion module, Remark