JX-350_EPU使用说明书.pdf - 第151页
EPU Instruction M anual C hapter 4 Creating a Production Progr am 4- 103 <Priority of layers> The relation between layers is shown in the table below . Priority L a ye r t yp e 1 Placement layer 2 Component l ayer …
EPU Instruction Manual Chapter 4 Creating a Production Program
4-102
(4) Model option
① Consider the component types and heights
When you check this check box, the system specifies the component layer with
considering the component height automatically to create a program that places
components in high density (that is, places components adjacently).
When you check this check box actually, the system places components in the
following order:
<Component placement by considering the component type and component height>
Placement order ① Placement order ② Placement order ③
<Relation between the component placement priority and the component type and
height>
As indicated with “Priority” in the table below, components other than aluminum
electrolytic capacitor is prioritized.
Priority Component type Component height (mm
1
Components other than aluminum
electrolytic capacitor
0 ＜ t ≦ 5.5
2 5.5 ＜ t ≦ 12.0
3 12.0 ＜ t
4
Aluminum electrolytic capacitor
0 ＜ t ≦ 5.5
5 5.5 ＜ t ≦ 12.0
6 12.0 ＜ t
EPU Instruction Manual Chapter 4 Creating a Production Program
4-103
<Priority of layers>
The relation between layers is shown in the table below.
Priority Layer type
1 Placement layer
2 Component layer
3 Component type/height layer
The system skips a component to continue the current PWB production if it cannot
place it on a board due to a component run-out error during PWB production when you
do not select the option “Stop system on components run out” on the “Production
(Pause)” tab of the “Operation option” menu. The system places the skipped
component finally after the production resumes by your replenishing the feeder that
caused a component run-out error. At this point, the production conditions based on
the component height may not be satisfied. Therefore, we recommend that you select
the option “Stop system on component run out” on the Operation option menu when
you select “Consider the component types and heights.”
2) Order placement from smallest to largest nozzle size:
When this item is checked off, components of the small-diameter nozzle are first
placed at optimization.
3) Same tray centralized layout specification
Regarding the same type tray components to be supplied to the MTS, specify
whether to arrange trays collectively or arrange them giving priority to the feed
speed.
• Same tray concentrated layout: Trays are arranged for each sane
component type.
• Feed speed priority layout: Trays are arranged by giving priority to
the feed speed.
Comp Type A
A
A
Comp Type B
B
B
Comp Type C
C
C
Comp Type A
Comp Type B
Comp Type C
A
B
C
A
B
C
When “Group trays with same
component type together” is selected
When “Arrange trays to optimize
supply time” is selected
EPU Instruction Manual Chapter 4 Creating a Production Program
4-104
(5) Feeder Option
Set the calculating method for the feeder type to be used for optimization and feeder
layout.
1) Feeder type setting (E 8 mm)
For an electric feeder that has two or more feeder types for the same tape width,
set a “feeder type used for optimization.” When you select two or more feeder
types, the system uses the optimal feeder among the selected feeder types to
generate Pick data.
a) E 8mmS: Sets the upper limit of the number of 8-mm electric single tape
feeders.
b) E 8mmD: Sets the upper limit of the number of 8-mm electric double tape
feeders.
When two types of tape feeders, single and double, are used, the system sets the
number of 8-mm electric single tape feeders and that of 8-mm electric double
tape feeders to be assigned with the Optimization utility within the range you set
manually on the screen for setting the number of components. You can set a
value from 1 to 80 in both of the “Number of available feeders” edit boxes.
If the number you set manually on the screen for setting the number of
components exceeds the total of the number set in the “Number of available
feeders” for the “E 8mmS” and that for the “E 8mmD” when you press the <Run>
button, the Optimization utility cannot be executed.