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SIPLACE 80S/F/G User’s Manual 5 Placement Edition 12/96 from S oftware Version SR.009.xx 5.5 PCB Handling 5 - 23 fiducia l can be made u nrecognizabl e (defective printed circu it board or ind ividual circui t). If the m…
5 Placement SIPLACE 80S/F/G User’s Manual
5.5 PCB Handling Edition 12/96 from Software Version SR.009.xx
5 - 22
The printed circuit board is moved automatically onto the center conveyor and placement is started.
After placement has been completed, or aborted (see Section 5.6.8 "Abort Menu") the printed circuit board is
transported onto the output conveyor. Should there already be a printed circuit board on the output conveyor,
the machine waits until the output conveyor is empty.
5.5.2 Interfaces
The SIPLACE 80 placement machine includes two interfaces for communication with the upstream station or
with the input device and the downstream station or output station/oven.
The signals required for the printed circuit board conveyor are transmitted to the machine (to which it is con-
nected) via these interfaces.
The station software enables this interface to be blocked or released after the
line engineer password
has
been entered within the "Machine options" menu.
5.5.3 Printed Circuit Board Position Recognition
The SIPLACE 80 placement machine is equipped with a vision system for optical printed circuit board position
recognition. The fiducials defined in the cluster are approached and measured with the head camera. The
software corrects the placement positions.
The printed circuit board position recognition facility can be enabled or disabled within the "Machine options"
menu after entering the
line engineer password
.
If the position recognition facility is disabled, the position of the printed circuit board is no longer measured.
The placement position is no longer corrected.
If an error occurs during position recognition such as to make continuation of placement impossible, the menu
"Fiducial error" automatically appears on the screen to help in error handling.
This menu is described in more detail in Section 5.6.3 (Fiducial error menu).
NOTE
Editing the fiducials is described in detail in Chapter 7 Vision Systems.
5.5.4 Ink Spot Recognition
The placement machine's vision system, in addition to printed circuit board position recognition, can also be
used to scan ink spots. The ink spot is a defined fiducial on a printed circuit board or individual circuit. This
SIPLACE 80S/F/G User’s Manual 5 Placement
Edition 12/96 from Software Version SR.009.xx 5.5 PCB Handling
5 - 23
fiducial can be made unrecognizable (defective printed circuit board or individual circuit). If the machine does
not recognize the ink spot, assembly of that printed circuit board or individual circuit does not take place. Ink
spots are especially suited to printed circuit boards which accommodate numerous identical individual circuits.
Ink spot recognition can be activated or deactivated within the "Machine options" menu after the
line engi-
neer password
has been entered.
If ink spot recognition is disabled, all printed circuit boards are assembled.
5.5.5 Width Adjustment
The width of the printed circuit board conveyor is normally set to the width of the printed circuit board for plac-
ing by a command from the line computer.
Manual adjustment of the conveyor width is possible within the single functions once the
line engineer pass-
word
has been entered. The procedure for this is described in more detail in Section 6.4.8 (Width Adjust-
ment).
5 Placement SIPLACE 80S/F/G User’s Manual
5.5 PCB Handling Edition 12/96 from Software Version SR.009.xx
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