INFICON SRT-422 Crucible Indexer - Manual (Page 33)

Installation Page 31
result in damage to the source.
Section 3.4: setting the configuration dip switches
The control unit contains eight internal DIP switches that enable you to configure the
unit to support your application. Three of these DIP switches configure the indexer for use with
a specific source type. The other switches allow you to select uni- or bidirectional motion, the
rotation direction, RS -232 communications enabled/disabled, and the baud rate for RS-232
communications.
WARNING!
Procedures involving the controller’s internal circuitry
may be hazardous if attempted with the AC power cord
connected.
Before attempting to change any DIP switch settings, it is essential to ensure that the
AC power is not connected to the controller. If the unit has been in use, first use the front-panel
switch to power down the unit. Then disconnect the unit’s AC power cord.
To gain access to the DIP switches, you must slide back the control unit’s top cover. To
do so, first insert a thin, flat-bladed screwdriver beneath the rear edge of the cover and pry it
up enough so that the retainer dimple in its rear edge clears the top edge of the controller’s
rear panel. Then you can easily slide the cover back by applying thumb pressure to it and
pushing rearward. When you have finished setting the DIP switches, slide the cover forward
until the retainer snaps into place, firmly securing the cover. The switch block containing the
DIP switches is mounted along the front edge of the controller’s main printed circuit board. If
you look at the board from a position above the front panel, you will see the switch block near
the right-hand edge of the board. The DIP switches are on the side of the switch block that
faces the front panel. Note that they are numbered I through 8 from left to right, as viewed from
the front end of the control unit.
The figure below illustrates the eight DIP switches from this point of view and lists the
effects of their settings in tabular form. Note that these switches slide rather than rock up and
down to change position and that the ON position is up.