User`s manual

17 18
FIGURE 6
To use an external Count Module, the INT/EXT input (pin 13) must be pulled
low to a logic “0". The on-board switches will be ignored. External Count
Modules plug into either connector labeled “EXTERNAL COUNT MODULE
CONNECTOR”(P1 or P2). When only using one module for both FORWARD
and REVERSE indexes, jumper JP2 must be in the “1-2" position.
When using external Count Modules, it is possible to use one module for
FORWARD indexing and another module for REVERSE indexing. The
connector on the side of the unit is the FORWARD count; the connector on
the top (of front face) is the REVERSE count. When using two modules for
different FORWARD and REVERSE indexes, jumper JP2 must be in the “2-
3" position.
JUMPER LOCATION / FUNCTION
JP1 DEBOUNCE INPUT
DELAY
1-2 12.5 ms
2-3 0.3 ms
JP2 EXTERNAL COUNT MODULES
1-2 ONE MODULE (SAME FORWARD AND REVERSE)
2-3 SEPARATE MODULES FOR FORWARD AND REVERSE
FIGURE 7
FIGURE 8
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 supplied 5 lead cable.
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 supplied 5-lead cable.