Anaheim Stepper PCL451 Users Guide

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Specifications
Power Requirements:
The PCL451 can be powered three different ways. The most common is with 9-12VAC (TB2, pins 5 & 6).
The second way to power the PCL451 is using voltages of +5VDC (TB2, pin 1) or +9VDC to +15VDC
(TB2, pin 2). If the AC inputs are used then the +5VDC and +12VDC unregulated can be used as outputs.
If the +9VDC to +15VDC is used then only the +5VDC can be used as an output. If +5VDC is used to
power the board, then no output voltages are available. The +5VDC output can deliver up to 250mA and
the +12VDC output can deliver up to 500mA. However the total current drawn from both pin 1 and pin 2
must not exceed 500mA.
Ambient Temperature:
0 to 50 degrees C
Control Inputs:
All Input Terminals are pulled up
to +5VDC through 1k ohm resistors.
TTL-MOS Compatible
Logic “0”: 0VDC to 0.8VDC
Logic “1”: 3.5VDC to 5.0VDC
Wiring Diagram
Figure 10
Figure 9: PCL451 Wiring Diagram   
						

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Busy and Complete Outputs:
These are open collector outputs that can sink 500mA and stand-off 40VDC maximum (no sourcing). Pull-
up resistors may be added to these outputs to produce TTL level signals.
For typical applications, relays are used on the outputs Busy and Complete.
K1 will energize immediately after completion of an index cycle and remain energized for approximately
an amount of time set by the “Complete Pulse Width” pot. K2 will be energized throughout an index cycle.
Figure 11: Busy and Complete Outputs
Index On The Fly
Index on the fly is a new feature on the PI45 that uses the existing Homing and Index inputs located on the
DPD72451.  Index on the fly allows the user to index an accurate preset distance after an input becomes
active.
To implement “Index on the Fly” simply set a distance on either the internal or external switches and
activate the homing input. While the PI45 is homing, pull the index input low and the motors will step the
distance set on the switches.
Application Example:
Given an automated assembly line controlled by the PI45, packages come in at a set rate. Assume the
required function is to stamp a set distance from the edge of the box.
Step A
Sensor #1 detects the leading edge of the box and is connected to the index input of the PI45. Homing the
PI45 causes the assembly line to begin moving in the direction indicated below. As soon as sensor 1
detects the edge of the box, activating the index input, the PI45 will step the amount indicated on its
counter switches and then stop.
Step B
A second axis receives a motion complete signal from the PI45.
Step C
The second axis triggers the stamp onto the box.
Step D
Sensor #2 detects completion of the stamping. Upon completion the homing input is again activated,
repeating the process.  
						

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Count Input Boards
All of the count input boards or modules set the number of steps the motor will move when an index is
initiated, but each module allows for a different variation in interfacing.
AA1748 - Click Pot Module
A ‘click pot’ module consists of 10 position (0 - 9) digital pots mounted on a printed circuit board. One pot
is used per each decade (digit). These units are available in 2, 4, or 6 decades. The user dials in the step
count on the pots. Any time the motor is indexed, it will move the number of steps set on the pots. One
module is required per axis. The module is connected to the manual preset indexer via a 5 lead cable
(supplied).
Figure 12: AA1748 Click Pot Module Dimensions Drawing
AA1760 - Thumbwheel Switch Module
These thumbwheel switches provide 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 via a 5-lead cable (supplied).
Figure 13: AA1760 Thumbwheel Switch Module Dimensions Drawing   
						

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Note: All inputs are active low (0-0.8Vdc). 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). AA2210 BCD Counter Module
The AA2210 BCD counter interface module enables the user to select any move length from 0 to 999,999
steps using a standard PLC (programmable logic controller). Selecting the proper inputs creates a count
value in steps, resulting in a move distance. The module is connected to the indexer via a 5-lead cable
(supplied).
Figure 15: AA2210 BCD Counter Module DImensions Drawing
AA1754 - Quad Board Counter
The quad board module is a 4-bank version of the click pot module with each bank having 6 decades. The
user can “dial in” four different move lengths and then select any one of them as desired. The module is
connected to the indexer via a 5-lead cable (supplied).
Figure 14: AA1754 Quad Board Counter Dimensions Drawing   
						

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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.
r o t c e n n o C1 n i P2 n i P3 n i P4 n i P5 n i P6 n i P
) r e x e d n I o T ( 1 Pno m m o CCD V 5 +kc o l Cte s e Rye KCD V 0
) n o i s n a p x E ( 2 Pno m m o CCD V 5 +kc o l Cte s e Rye KCD V 0
) s t u p n I t c e l e S ( 3 P1# t c e l e S2# t c e l e S4# t c e l e Sye KCD V 5 +CD V 0
Table 7
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.0=LOW (0-0.8VDC), 1=HIGH (3.5-5VDC)
t c e l e S k n a B
e n i L t c e l e S
1 #2 #
1 # k n a B h c t i w S00
2 # k n a B h c t i w S10
3 # k n a B h c t i w S01
4 # k n a B h c t i w S11
Table 8 
						

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