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Digital reference adapter board analog input – Rockwell Automation 1395 Digital Reference Adapter Board User Manual

Page 50

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Chapter 6

StartĆUp

6-4

Digital Reference Adapter Board

Analog Input

The Analog Input requires more extensive set-up than the Digital Input.
Digital Scale and Offset parameters must be adjusted for each analog input
device. Additionally both analog inputs have analog offset and Analog
Programmable gain parameters which are digitally adjustable. As with the
Digital I/O, each Analog I/O must be linked to a Drive fast parameter in
order to be used.
An example for Analog Input 1 is shown in Figure 6.2.

Figure 6.2

Analog Input #1 Digital Reference Adapter

Digital Scale

P550

A

D

Multiplexer

Analog #1

Pot +/-

10V DC

+ / - 2048

Programmable

Analog

Gain

P554

0 to 4

-20V to +20V

(-4096 to 4096)

To Main

Control

Board

Digital Offset

P551 = 0 VDC

Analog Offset

P555 = 0VDC