JX-350_EPU使用说明书.pdf - 第121页
EPU Instruction M anual C hapter 4 Creating a Production Progr am 4- 73 ( 7) Auto correct pick: This setting causes the system t o automatically correct the component pick - up position error as the result of laser r eco…
EPU Instruction Manual Chapter 4 Creating a Production Program
4-72
(3) Picking offset XYZ:
Specify the distance from the center of a component to the component pick-up
position in the “Picking offset XY” field.
When you create Pick data, it is added to or subtracted from the initial value of “XY,”
which is automatically calculated.
When the machine cannot pick up a component normally because there is a
projection or dent in the center of the component, set this menu item.
In the “Picking offset Z” field, specify the distance from the tip of the nozzle to be
pushed when the system picks up a component.
When you create Pick data, the system adds this value to the initial value of “Z” that is
calculated automatically.
If the position obtained by shifting the coordinates of the component center by the
offset is regarded as the component pick-up position, this component pick-up
position may not be within the outer dimensions of the component due to rotation
or other movement of the component. Therefore, the system handles the outer
dimensions according to this effect.
Even though you change the value specified in the “Picking offset XYZ” field after
coordinates of a component pick-up position is specified, the system will not
recalculate the coordinates of the component pick-up position. To do so, change
the setting of the “Side” field to “AUTO” on the “Pick” data screen for a component
associated with the component data you changed, and specify the pick-up
position again. The system will calculate the coordinates of the component
pick-up position again, and change the value in the “Z” field also.
(4) Pick Z down/Pick Z up
Select the speed at which the Z-axis moves when a component is picked up.
When you select the low speed, the operation becomes more stable, but the cycle
time takes longer.
(5) Tw o-step speed control
Specify whether to control the speed at which the nozzle moves up and down in two
steps when a component is picked up.
When you select the “Yes” radio button in the “Adjust” field, enter the height to be
controlled in two steps for moving up and moving down the nozzle respectively.
The speed changes at the position specified from the upper surface of the PWB.
Though it moves to the specified position at high speed, it operates from there to the
PWB side at low speed, and components are placed. When the lead components
are placed, it is set to prevent the lead bending.
(6) Vacuum time adjustment
Specify whether to adjust the vacuum time or not.
When you select the “Yes” radio button in the “Adjust” field, enter a value in each of
the “Vacuum starting timing” field, the “Vacuum starting correction value” field and the
“Vacuum stability waiting time” fields in unit of ms.
When you use a gripper nozzle, the system does not make any adjustment when it
picks up a component.
EPU Instruction Manual Chapter 4 Creating a Production Program
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(7) Auto correct pick:
This setting causes the system to automatically correct the component pick-up
position error as the result of laser recognition. Note that this check is only for
components that are centered with laser and supplied from tape.
The corrected position is entered to the coordinates field of the component pick-up
position on the “Pick” data screen.
The system corrects the component pick-up position without causing the
simultaneous pick-up to be disordered by correcting the pitch in Y direction when an
electric feeder is used.
When you select a component pick-up position correction for a mechanical
feeder, the system may not be able to pick up a component simultaneously on
the way because the component pick-up coordinates change during PWB
production.
(8) Auto teaching:
This is the function for automatically measuring the center of a component when the
system tracks the component pick-up position.
You cannot select the “Yes” radio button for components other than chips 0603 to
3216 whose packaging style is a paper tape (8-mm pitch).
When you select “Yes,” the system automatically teaches the center of a component
when it tracks the pick-up position.
EPU Instruction Manual Chapter 4 Creating a Production Program
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4.1.4.2.5 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.
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 the distance for pushing a component to be placed from the top surface of a
board.
When you specify “0” in this field, a component may not reach a board due to the
flatness of the board and it may not be placed at the specified placement position
(that is, a placement error occurs), or a component may slide over the cream solder
when it is placed.
In such a case, increase the value set in this field so that a component can reach the
board (that is, enter a positive value).
The initial value is “0.5 mm” (0.2 mm for a 0603 chip component).
"The load is controlled" button becomes effective for the use of the nozzle with which
a simple load can be controlled after 601.
* Not used in JX-350.