RS-1_instruction manual.pdf - 第407页
Part 1 B asic O peration Chapter 4 Cr eating a Produc tion Progra m 4- 72 (5) Place Conditi on The placement cond itions cons ist of setting items r elated to pla cement and def ault values are applied. According ly , th…
Part 1 Basic Operation Chapter 4 Creating a Production Program
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10) Component cueing
Specify whether to cue (head) each component and/or whether to specify a threshold value.
When a component can be cued, you can specify this menu item, and “Yes” is selected by
default.
Data on a component that can be cued is shown below:
<Cueing of a component with the OCC>
1. 8-mm paper tape or 8-mm embossed tape
2. Component type: Chip (square chip)
3. 0402 to 3216 (0.35 mm ≦ longer side ≦ 3.4 mm, 0.10 mm ≦ shorter side ≦ 1.8
mm)
The menu item “Threshold value” is set to “Not Used” by default.
If a component cannot be cued (headed) with the OCC well, you can specify a threshold
value for detecting existence of a component individually.
Not Used (default)
Select this button if you do not specify a threshold value for detecting
a component to be cued with the OCC individually.
The system operates according to the setting of the main unit.
Used
Select this button if you do not specify a threshold value for detecting
a component to be cued with the OCC individually.
The system operates according to the setting of a production
program.
The default value of the “Threshold value” is 30. You can specify a value in the range of 0
to 40.
11) Control
Specify how to control the stroke to be applied to pick-up of a component.
When a nozzle for controlling low load is selected on the “Centering” tab, the <Low load>
button and the <Load graph> button are enabled on the screen.
When you select the <Low load> button for this menu item, the input unit for the menu item
“Pick stroke” is changed to [g], and the setting of the “Pick Z down” field of the menu item
“Speed” is changed to “FC speed.”
When you press the <Load graph> button, you can check the pressure that can be applied
with the nozzle.
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(5) Place Condition
The placement conditions consist of setting items related to placement and default values
are applied. Accordingly, they do not need to be changed. If placement cannot be
performed normally in the default value status, change the settings. Note that if you change
the setting(s) of the “Basic setting” tab sheet after changing the settings of the “Place
Condition” tab sheet, settings of some menu items are reset to the default ones.
CAUTION
If you change any of the basic settings after changing any value on the
“Place Condition” tab, some values are reset to their defaults on the
“Place Condition” tab.
1) Placing stroke
Specify how much to push the tip of a nozzle when a component is placed on a board.
2) Component layer
The “Component layer” field specifies the priority of each component on the same
placement layer.
This selection is effective only if the system produces a PWB in the optimized order.
Note that since this setting is for the priority of the optimized placement order, this does not
specify the placement order strictly, so that this does not put the machine into the pause
state when components run out unlike the placement layer.
Select the layers from 1 (highest priority) to 7 (lowest priority) from the pull-down list.
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
Layer 7
Place first.
Place later.
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3) Place Offset X, Y, Ө
When the system centers a component with laser, it holds the center of the component
based on the outline of the component observed with laser.
In CAD data or similar type of data, the center of the component-mounted pattern (called
“pad”) is regarded as the coordinates of the component placement position.
This difference may cause leads of a component to be shifted from the pad of a PWB.
Therefore, when you enter this difference in this “Place Offset,” the system can place a
component at the correct position.
Example 1: One-direction lead connector
* Placement angle is 0°.
If the placement offset is not entered, components will be placed as shown below.
In the condition shown in the figure above (placement angle of 0º and placement offset of 0),
the system measures the distance from the coordinates of the component placement
position as the start point to the relative position of the component placement position
coordinates, and enters this distance into the “Place Offset” field.
To place two or more components of the same name, enter the placement offset in this
manner, and the placement position will be automatically changed and the component will
be placed on the correct position even if each placement angle is other than 0°.
Placement offset -Y (X is 0)
Center position of a component
centered with laser
Placement coordinate
position
Top view of a component
Pad on a PWB
Pad on a PWB