JX-350_EPU使用说明书.pdf - 第68页
EPU Instruction M anual C hapter 4 Creating a Production Progr am 4- 20 This is the distance from the PW B origi n if "PW B marks are used" has been selected, or the dist ance from the circuit origin if "C…
EPU Instruction Manual Chapter 4 Creating a Production Program
4-19
8) First circuit position
Specify the reference circuit. Enter the position of the origin of the reference
circuit viewed from the PWB origin.
* For a multi-plane matrix PWB, you can specify the PWB origin and the circuit
origin (this can be the PWB origin from which components are placed)
respectively.
To do so, specify the PWB origin with the “PWB layout offset,” and then
specify the circuit origin with the “First circuit position.”
9) Circuit divide No
Enter the numbers of circuits in the X direction (or the PWB transport direction)
and in the Y direction (or the vertical to the PWB transport direction).
The maximum number of circuits varies depending on the contents of the bad
mark coordinate specification in the basic settings.
The system can create up on a multi-plane matrix PWB is as shown below.
Reference bad mark: 1200 circuits
Extended bad mark: 200 circuits
10) Circuit pitch
Enter the distance between the circuits (the distance between the origins of two
circuits, and you have to enter a sign, + or – (minus).) in the X direction (or the
PWB transport direction) and in the Y direction (or the vertical to the PWB
transport direction).
11) BOC mark position, Mark name, Shape
Enter the distance from the PWB origin or the circuit origin to the center of the
BOC mark.
Enter the “Mark name” and “Shape” fields in the same manner as a single-plane
PWB (“Single PWB” as the “PWB configuration”).
- For using 2 points: it is possible to correct the difference between the design
dimensions and the actual dimensions (measured dimensions) and the rotation
direction error. For the third point, leave the field blank. When there are
multiple marks on the PWB, select 2 points on the diagonal lines in all the
placement range.
- For using 3 points: In addition to the case of two points, the perpendicularity
distortion between the 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
4-20
This is the distance from the PWB origin if "PWB marks are used" has been
selected, or the distance from the circuit origin if "Circuit marks are used"
has been selected as the "BOC type" on the "Basic setting" screen.
For using a long PWB:
For a large-shaped PWB whose external length X exceeds 650mm, set the
first and second BOC marks; for an optional large-shaped PWB whose
external length X exceeds 1200mm, set the first, second and third BOC
marks.
However, if the circuit is divided in the X direction and circuit BOC exists, an
error may be displayed at the start of production, disabling production.
EPU Instruction Manual Chapter 4 Creating a Production Program
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12) Bad mark position
Select the “Not Used” radio button or the “Used” radio button depending on
whether a bad mark is used or not.
When you select the “Not Used” radio button, “***” appears in the “X” field and the
“Y” field respectively.
When you select the “Used” radio button,
Enter the distance from the circuit origin (circuit reference position) to the center
of a bad mark on the reference circuit.
* In the above case, enter X = a and Y = b.
<Usage of a bad mark and operation flow>
i) Enter the bad mark coordinates into the PWB data.
ii) Before feeding a PWB, affix a bad mark on the spot specified with the bad
mark coordinates of a defective circuit.
iii) When the OCC or the bad mark sensor reads a bad mark on circuits before
starting production, the system skips the circuit on which the bad sensor
detects a bad mark without placing it on a board.
iv) Before the start of production, the OCC or bad mark sensor reads a bad mark
of each circuit. When a bad mark is recognized, components are not placed
on the corresponding circuit.
The requirements for a bad mark are: the mark must be distinct in the
color from a PWB, and its diameter must be 2.5 mm or greater. If a bad
mark is used, the production time will be longer by the mark recognition
time.
* For the extended bad mark, see "4.1.2.5 "Ex. bad mark" screen."
* If the bad mark is set out of the circuit, use an extension bad mark.
a
Circuit origin
Bad mark coordinates
b