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Input Modules for PI45 Based Preset Indexers |
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This thumbwheel switch counter
provides an attractive way to input a step count. The user
"dials in" the desired count on the thumbwheels, which can be
mounted on an enclosure face. The module is available in 3, 4, 5
or 6 decades. The module is connected to the indexer via a
supplied 5-lead cable. |
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A "Rotary Switch" module consists of
a 10 position (0-9) rotary switch, mounted on a circuit board.
One switch per each, decade (digits). These units are available
in 4 or 6 decades. One module is required per axis. The module
is connected to the indexer via a supplied 5-lead cable. |
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The quad board module is a 4-bank
version of the rotary switch module. With each bank having a
different move length, the customer can then select them as
desired. The module is connected to the Indexer via a supplied
5-lead cable. |
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Connector |
Pin 1 |
Pin 2 |
Pin 3 |
Pin 4 |
Pin 5 |
Pin 6 |
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P1(To CL1710) |
Common |
+5Vdc |
Clock |
Reset |
Key |
0Vdc |
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P2(Expansion) |
Common |
+5Vdc |
Clock |
Reset |
Key |
0Vdc |
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P3(Select Inputs) |
Select #1 |
Select #2 |
Select #4 |
Key |
+5Vdc |
0Vdc |
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The selection of the switch banks is done by switching select
lines 1 and 2 on connector P3. The select lines are "low true"
meaning that if a select line is pulled low (to 0Vdc), it is
recognized as being "on" or "true". When a select line is not
pulled low it is internally "pulled up" to +5Vdc and is "off" or
"false". The bank select lines must be set at least 1
millisecond before the Index command is given. The select lines
must remain in the set state until the index is complete. Once
the move is finished, the select lines may be changed as needed. |
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BANK SELECT TABLE |
SELECT |
LINE |
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#1 |
#2 |
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SWITCH BANK #1 |
0 |
0 |
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SWITCH BANK #2 |
1 |
0 |
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SWITCH BANK #3 |
0 |
1 |
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SWITCH BANK #4 |
1 |
1 |
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0=LOW (0-0.8Vdc), 1=HIGH(3.5-5Vdc) |
Select line #4 is only used if additional count input devices
are "daisy chained" to the expansion connector (P2). If select
line #4 is low, that quad board is ignored and the count input
device connected to the P2 expansion connector is read. This
allows multiple quad boards to be used together. The "daisy
chained" count input device does not have to be a quad board; it
could be a thumbwheel switch or click pot module. |
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The
AA2210 BCD counter interface module enables the user to select
any move length from 0 to 999,999 steps using standard PLC
(programmable logic controller) outputs. Selecting the proper
inputs creates a count value in steps, resulting in a move
distance. The module is connected to the indexer via a supplied
5-lead cable.
Note: All Inputs are active low (0-0.8Vdc) and must be pulled
low at least 2 milliseconds before the index command is given.
These inputs must remain low until the index is complete. Once a
move is finished, the inputs can be changed as needed for the
next move. All unused inputs may be ignored since they are
pulled up.
Example: For a move distance of 1234
steps the following inputs should be pulled low.
1's Decade: Bit 4 (TB1, pin 4)
10's Decade: Bit 1 and 2 (TB2, pin 2 and 3)
100's Decade: Bit 2 (TB1, pin 7)
1000's Decade: Bit 1 (TB2, pin 6)
All Other inputs must be open or
high (3.5-5Vdc).
(AA1748, AA1760, AA2210, AA1754, AA2909 Users Guides PDF)
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This module is similar to the AA1760
series Thumbwheel Switch Module. It uses a "+Push and -Push"
style button to increase or decrease the number on the dial.
This unit also includes a single "Rotary Switch" module
consisting of 10 positions (0-9), which is used as a
multiplier of the Thumbwheel Switch settings. This rotary switch
is mounted on the back side of the circuit board for
convenience. Three decades of push switches are available for
setting numbers from 1 to 999. This unit is very useful
for setting the move distance in inches and/or millimeters.
(AA2909 User's Guide PDF)
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