Jäger ADwin-Pro, System And Hardware Description

Page: 45 / 218

ADwin-Pro Hardware, manual version 2.9, June 2006
41
Pro I: Analog Input Modules
Pro-AIn-8/12 Rev. A
ADwin
Fig. 54 – Pro-AIn-8/12-D Rev. A: Pin assignment
Setting the Input Voltage Range
The input module Pro-AIn-8/12 Rev. A is equipped with an ADC whose input
voltage range is adjustable by 2 jumpers. As a default setting, the ADC is set
to the voltage range of ±10V. The settings for other voltage ranges can be
found in
fig. 56 .
Fig. 55 – Pro-AIn-8/12 Rev. A : Board and front panel
After every jumper setting you have to recalibrate the ADC, in order to assure
correct measurement results. The individual steps are described in the
chapter 6 "Calibration" ( page 191 ).
For the accurate adjustment of offset and gain the potentiometers UPO (uni-
polar) or BPO (bipolar) as well as GAIN are available (
fig. 57 ).
ANALOG IN 1 (-)
ANALOG IN 2 (-)
ANALOG IN 3 (-)
ANALOG IN 4 (-)
ANALOG IN 5 (-)
ANALOG IN 6 (-)
ANALOG IN 7 (-)
ANALOG IN 8 (-)
AGND
RESERVED
ANALOG IN 1 (+)
ANALOG IN 2 (+)
ANALOG IN 3 (+)
ANALOG IN 4 (+)
ANALOG IN 5 (+)
ANALOG IN 6 (+)
ANALOG IN 7 (+)
ANALOG IN 8 (+)
AGND
RESERVED
DGND
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
RESERVED
RESERVED
19AD774
FPGA
FPGA
ON
1 2 3 4 5 6 7 8
A0 A1 A2 A3 A4 A5 A6 A7
LS19
M
P
C
507
DC/DC-converter
P
G
A
203
ADS774
10V UNI
UP
O
GA
IN
BP
O
20V
BI
P
AIN8/12
ANALOG
INPUT
1
2
3
4
5
6
7
8
AIN8/12
ANALOG
INPUT
Jumpers
Potentiometers
Voltage range J1 J2
±5V bipolar BIP 10V
±10V bipolar
(default)
BIP 20V
0...10V unipolar UNI 10V
not allowed UNI 20V
Fig. 56 – Pro-AIn-F-8/12 Rev. A :
Jumper positions for the input
voltage range
Potenti-
ometer
Adjustment of
Gain Gain factor
BPO Offset (bipolar setting)
UPO Offset (unipolar setting)
Fig. 57 – Pro-AIn-F-8/12 Rev. A : Function
of the potentiometers