JX-350_EPU使用说明书.pdf - 第60页
EPU Instruction M anual C hapter 4 Creating a Production Progr am 4- 12 CA UTIO N If a designed value (CAD data) of mark coordinate exists, NEVER teach the X and Y coordinates. If these values are t aught, all component …
EPU Instruction Manual Chapter 4 Creating a Production Program
4-11
(5) BOC type
“BOC” is abbreviation of Board Offset Correction, and is a mark for correcting a
component placement position that helps the system to place a component on a
board more accurately. (It is called a “fiducial mark” also.)
♦ Do not use:
Select this radio button if you do not use a BOC mark at all.
♦ PWB marks/ref. ckt marks are used:
Select this radio button if you are to correct the coordinates of a component
placement position with using BOC marks.
♦ Circuit marks are used:
You cannot select this radio button for a single-circuit (plane) PWB.
(6) Circuit dimensions, Circuit layout offset, First circuit position, Circuit divide No,
Circuit pitch
You do not have to enter these menu items for a single-plane (circuit) PWB (You
cannot set any value in these fields either).
When you select the “Matrix circuit” radio button or the “Non-matrix circuit” radio
button as the “PWB configuration,” you have to specify these menu items.
(7) BOC mark Position, Mark name, Shape
Enter the distance from the board reference position to the center of the BOC mark,
specify the mark name and teach the mark shape.
・ You can enter up to eight characters to specify the mark name.
・ Two or three BOC marks are required.
When you select the “Do not use” radio button as the “BOC type” on the “Dimension
setup” tab, these menu items are dimmed.
For details of the teaching operation, refer to Section 4.5.2 “Teaching” of the
“Instruction Manual CD” of the main unit for the detailed operations.
♦ If two points are used:
The difference between the designed dimension and the real dimension (or
measured dimension) and the error in the rotating direction can be corrected.
Leave the field for the third point blank. Further, if two or more marks exist on
the PWB, then select two points on the diagonal line that covers the entire area
for placement.
♦ If three points are used:
In addition to the case of two points, the right angle between X-axis and Y-axis can
be corrected.
JX-350 EPU is not applicable to the teaching.
Enter the X and Y coordinates.
EPU Instruction Manual Chapter 4 Creating a Production Program
4-12
CAUTION
If a designed value (CAD data) of mark coordinate exists, NEVER
teach the X and Y coordinates. If these values are taught, all
component placement coordinates will be deviated from the designed
values.
* For using a large-shaped PWB whose external length X exceeds 650mm:
For a large-shape PWB whose PWB external length exceeds 650mm, set the BOC mark in
the range of placement by first clamp (hereafter referred to as the first BOC mark) and the
BOC mark in the range of placement by second clamp (hereafter referred to as the second
BOC mark).
Example: When a single-circuit left-to-right transport is performed and the PWB size is 800
mm, enter the first BOC mark setting and second BOC mark setting.
Transport direction
① First
placement area
② Second
placement area
①
②
* For using a large-shaped PWB whose external length X exceeds 1200mm
(option):
For a large
-shaped PWB whose external length X exceeds 1200mm
, set the BOC
mark in the range
to be placed by the third clamp (hereafter referred to as the
third
BOC mark)
, besides the first BOC mark and the second BOC mark.
The third BOC mark setting items are displayed only when “Long board option” is
set enabled by selecting [EPU Setup]
-[Station Profile]-[Option 2].
EPU Instruction Manual Chapter 4 Creating a Production Program
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* Restrictions on Longer sized PWB
- For a Longer sized PWB, optimization considering twice clamp (including optional
thrice clamp) cannot be executed if “Replacement with the optimization result” of the
optimization option is selected for optimization. Select “Order assigned from the
production program input order” for optimization.
- In the case of a circuit whose placing point bestrides two clamps (including optional
thrice clamp), set the bad mark position in the first placement area.
(8) Bad mark position
You do not have to enter this item for a single-plane PWB (setting is disabled).
(9) PWB height
Enter the length of the top plane of the PWB from the transport reference plane
(reference height. This is the initial value (= 0.00) of the Z axis).
Usually, enter the initial value. When the transport reference plane is different in
height from the PWB top plane, enter the PWB height.
Example: Odd-shape PWBs or flexible PWBs are manufactured by piling the jig
(carrier board). In this case, enter “+t” for the PWB height.
• Normal case(Transport reference plane = PWB top plane height)
• Using the jig (Transport reference plane ≠ PWB top plane height)
If “+1” is not entered in this case, the component is pushed over the placement plane
(by the length of t) at placement, thereby damaging the component.
The nozzle height at component placement depends on the PWB height.
Accordingly if an incorrect value is set, the placement may lose uniformity. (The
component is released from a position remote to the PWB or the component is
pushed in too much in the PWB.)
+t
Transport reference plane
PWB top plane height
Jig (carrier board)
Transport reference plane
PWB top plane height