a. Remove the AA30-4 card from its slot (see Section 3.a, Step 1, above).
b. Refer to Fig. 6 and locate the 16-position FILTER SELECTION SWITCHES located
between the main card and the Filter Tiles.
c. Referring to Table 4, below, set each channel's switch for the desired frequency.
You will need to use a small screwdriver (or equivalent tool) to set the switch to the
appropriate number/letter.
d. Reinsert the AA30-4 card.
NOTE: In addition to the normal-mode analog filtering supplied by the AA30-4 card,
System 10 can provide additional processor-controlled DIGITAL SMOOTHING on a
per-channel basis. For each individual channel, you may indicate the desired amount
of digital smoothing by applying a
FILTER (FIL) command to that channel (see Manual
Section 2.G.2).
Table 4 Model AA30-4 Filter Switch Settings
Cutoff Frequency Switch Setting
0.2 Hz 7
0.4 Hz 6
0.8 Hz 5
1.0 Hz 3
1.6 Hz 4
2.0 Hz 2
4.0 Hz 1
5.0 Hz F
8.0 Hz 0
10 Hz E
20 Hz D
25 Hz B
40 Hz C
50 Hz A
100 Hz 9
200 Hz 8
3.c SELECTION OF ANALOG OUTPUT MODES
As mentioned in Section 1, each AA30-4 channel's ±5-V ANALOG OUTPUT can be set
to represent either the
filtered or prefiltered reading of that channel. To set the output
mode for each of your AA30-4's active input channels,* you should
1. Remove the AA30-4 card from its slot (see Section 3.a, Step 1, above).
2. Refer to Fig. 6 and locate the OUTPUT MODE PROGRAMMING JUMPER PINS
beneath the AA30-4's Filter Tiles. One “minijumper” is provided for each channel's
set of three jumper pins.
3. Position the jumper for each channel as shown in Fig. 6 to interconnect the pair of
pins that corresponds to the desired output mode for that channel. You will need
to use a small pair of needle-nosed pliers to move the jumper.
4. Reinsert the AA30-4 card in its mainframe slot.
SETUP AND/OR OPERATING CONSIDERATIONS AA30-4.9
QUAD LVDT CARD AA30-4
* The output mode setting for an UNUSED channel is immaterial, and will not affect operation of
the AA30-4.
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