Reference Adapter Board User guide

Chapter 6
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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