409-35001
Rev C
37
of 92
“Offset” –
Th
is is used in conjunction with “Height Dimension” to define the
next destination of the
pressing surface of the tool above the board. A positive or negative offset value can be entered to adjust
the destination height to be slightly above or below the selected “Height Dimension”. (Note: this field is not
used when “Custom Height” is selected).
The press head will drive down to the height defined by these fields
at a speed that is linearly “ramped”
from the height and speed of the previous step.
The initial height (before step 1) is defined by the height stackup of the board, fixture, connector, tool, and
tool clearance. The available “Height Dimensions” are shown here. Alternatively, a fixed positive numeric
height can be entered. This specifies a height of the tool above the press table top surface, without regard
to PCB, connector or fixture thickness.
“Height Action”
-
This defines the action to be taken when the height at this step is reached as shown in
Actions are selected from the drop-down menu. The available actions are:
Next Step -
This directs the process to the next step below.
GoTo -
This directs the process to continue at the specified step. The step number is entered in the
numeric field.
Complete -
This signals that the pressing process is complete. The head will stop immediately and
rise to the next tool clearance height. A completion message can be entered by the user in the
adjacent text field.
Error -
These are user defined error messages. If the height is reached and the action is an error, the
pressing process is immediately halted and the error message is displayed on the screen. The
operator must acknowledge the error message to continue.
Figure 40
“Force
Measurement
”
- This defines the force which will trigger the force action. There are eleven
variable choices provided on the drop-down menu. An actual force in pounds can be entered in a numeric
field using the “Custom Force” option
Figure 41
