Pentax DSI-200 Series User Manual page 85

The function code is used to set the relationship between the analog input voltage and the
set value it represents.
When the analog input voltage is greater than the set "maximum input" (P4-15), the analog
voltage is calculated according to the "maximum input"; Similarly, when the analog input
voltage is less than the set "minimum input" P4-13), the minimum input or 0.0% is
calculated according to the setting of "AI lower than minimum input setting" (P4-34).
When the analog input is current input, 1mA current is equivalent to 0.5V voltage.
AI1 input filter time, used to set the AI1 software filter time, when the field analog is easy
to be disturbed, please increase the filter time, so that the test simulation tends to be stable,
but the larger the filter time on the analog test The response speed is slow, how to set the
need to be based on the actual application of trade-offs.
In different applications, the meaning of the corresponding nominal value of 100.0% of
the analog setting is different. Please refer to the description of each application section.
The following illustrations are two typical settings:
Figure 6-12 Correspondence between simulation reference and set
AI Curve 2 minimum input
P4-18
Set range
AI Curve 2 minimum input
corresponds to setting
P4-19
Set range
AI Curve 2 maximum input
P4-20
Set range
AI Curve 2 max input
corresponds to setting
P4-21
Set range
AI2 Input filter time
P4-22
Set range
For the function and use of curve 2, please refer to the description of curve 1.
AI Curve 3 minimum input
P4-23
Set range
Factory
default
0.00V～P4-20
Factory
default
-100.00%～100.0%
Factory
default
P4-18～10.00V
Factory
default
-100.00%～100.0%
Factory
default
0.00s～10.00s
Factory
default
0.00s～P4-25
- 85 -
0.00V
0.0%
10.00V
100.0%
0.10s
0.00V