8
•
Installation
2.6 Selecting D/A Range and Functions
There are two facts will effect the output voltage of ACL-6128 :
reference
source
and
output range
.
2.6.1 Reference Source Setting
The ACL-6128's D/A converter reference voltage source can be internal
generated or by external reference voltage from the Reference Voltage
Input (REF.IN) of connector CN1 and CN2. The settings of the reference
sources for CH1 and CH2 are controlled by the jumper JP4 and JP8,
respectively. The default setting is Internal Reference for both CH1 and
CH2, and is illustrated by the following diagram
on next page.
Internal Reference
( Default )
External Reference
Voltage
CH1
JP4
EXT
INT
JP4
EXT
INT
CH2
JP8
EXT
INT
JP8
EXT
INT
Figure 2.3 Reference Source Setting
After setting as internal reference source, two fixed and precision internal
-5V and -10V reference sources are provided by ACL-6128. The source
selection is set by JP3 (CH1) and JP7 (CH2), and the default setting of
internal reference voltage is -5V , which is illustrated as Figure 2.4 below :
Summary of Contents for ACL -6128
Page 1: ...N u D A Q A C L 6 1 2 8 2 Channel Isolated 12 bit Analog Output Card U s e r s G u i d e...
Page 4: ......
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Page 33: ...Calibration 25...
