409-35001
Rev C
32
of 92
“Number of Pins”
-
This is the number of pins in the connector. It is used to calculate force when using
max or min force per pin in the profile. It is also used to calculate and graph the force per pin on the run
time screen.
“Profile”
-
This is the name of the profile file to be used for the connector. It is picked from the profile data
base entries using the drop-down menu. The profile must be completed before the connector database
can be generated.
“Dimensions”
Tab
Primary Dimensions:
Height - This is the measurement of distance from the top of the connector to the seating surface of the
connector. Subtracting ‘Unseated Top’ from ‘Height’ will give actual amount of distance left to press
connector to seated condition.
Length
–
This dimension is only used for traceability and rendering the connector image on the
Production screen.
Width
–
This dimension is only used for traceability and rendering the connector image on the
Production screen.
Secondary Dimensions:
Base Thickness - This is the thickness of the connector between the inside (mating section) bottom
and the outside bottom as shown. It is used to calculate the head travel to seat the connector to the
proper height.
Unseated Top - This is the measurement of the distance of the top surface of the connector to the top
surface of the PCB.
Seated Height - This is the desired distance between the board surface and the bottom of the
connector after pressing. It is usually zero, but may be set above the board surface for press to height
applications.
“Force”
●
Min Force / Pin - This is the minimum acceptable force per pin. It is referenced in the pressing profile.
●
Max Force / Pin - This is the maximum acceptable force per pin. It is referenced in the pressing
profile.
●
User Force / Pin - This is a user defined force per pin. It is referenced in the pressing profile.
●
Other Force - This is a user defined fixed total force offset (not per pin) such as might be utilized to
compensate for using a spring loaded pressing die. This force is subtracted from the force readings
before they are compared to the press profile Force limits and graphed.
Force Gradient Panel
:
Force Gradient monitors the rate of change of force to distance. Generally, the force vs. distance plot will
make a steep upturn as the connector contacts the board surface. A minimum slope is specified for the
upturn which corresponds to how solidly the connector is pressed against the board. This slope is entered
using a
Δ
Force/
Δ
Distance (the change in force divided by the change in distance).
Δ
Force - Enter the change in force, which is the numerator of the slope you want to watch for to complete
the press cycle. The value entered is used in conjunction with
Δ
Distance when Force Grad from
Connector Database is selected in the Profile Editor.
Δ
Distance - Enter the change in distance, which is the denominator of the slope you want to watch for to
complete the press cycle. The value entered is used in conjunction with
Δ
Force when Force Grad from
Connector Database is selected in the Profile Editor.
Legacy Force Gradient
–
Users accustomed to using the force gradient method implemented on legacy
machines can use the conversion tool located within the “Force Gradient Panel” to automatically
determine the
Δ Force
and the
Δ
Distance by entering the legacy graph scale value and legacy angle
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