YSD_Users_E.pdf - 第280页

6-11 6 Using the advanced functions 2.3.2 Cursor teaching In cursor teaching, a teac h window with an y desired size is display ed on the vision monitor , and the position data at the center of the window is obtained. Th…

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Using the advanced functions
Input method 2:
This method uses the [ClickMove] button at the lower right of the vision monitor and the [Set Point]
button to specify multiple teaching points. All teaching points must be displayed within the vision
monitor.
First move the teaching unit to a position near the center of target patterns so that all teaching
points are displayed within the vision monitor, and press the [ClickMove] button. The mouse pointer
changes to a cross cursor when it is placed on the vision monitor. Then click at the first teaching
point with the mouse and press the [Set Point] button. Next click at the second teaching point with
the mouse and press the [Set Point] button. Repeat this operation at the other teaching points (such
as third and fourth points), and press the [Teach] button after clicking at the last teaching point
(fourth point in the example below). The center coordinates (XY) of the multiple points are input as
the teaching position. The number of teaching points (4 in this case) is shown in the "Count" box.
TIP
When the [Click Move] button is pressed and the mouse pointer is placed within the vision monitor, the mouse pointer
changes to a cross pointer. Place the cross pointer at the position you want to teach and press the left mouse button.
The camera will move to the teaching position to display it in the center of the vision monitor.
Teaching
Multi-point input
3rd teaching point
2nd teaching point
4th teaching point
1st teaching point
Center coordinates (XY)
• Vision monitor
Cross cursor
4 3
1
2
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CAUTION
If you want to cancel the previous teaching point you specified, click the [Clear] button. A previous teaching point is
canceled each time the [Clear] button is pressed. However, the teaching points cannot be canceled once the [Teach]
button is pressed. In this case, redo the teaching from the beginning.
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Using the advanced functions
2.3.2 Cursor teaching
In cursor teaching, a teach window with any desired size is displayed on the vision monitor, and the position
data at the center of the window is obtained. The cursor teaching allows obtaining a more accurate value than
with normal teaching. Note that this function cannot be used unless the marks and patterns fit in the vision
monitor.
1
Open the cursor teach screen.
Press the [Cursor] tab to open the cursor teach screen.
2
Clamp a board.
Clamp a board on the conveyor.
3
Set the teaching conditions.
Set the "teaching unit", "speed", and "fiducial correction".
See the previous section "2.1 Trace function" for the setting methods.
4
Select the item (data) to perform teaching.
Cursor teach screen
Select data row to perform teaching.
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5
Move the teaching unit (camera) to the target position.
Check safety and stay out of the axis movement range, open the [Point] tab to return to the point
teach screen, and move the teaching unit (camera) to the target position using the axis move keys.
6
Adjust the lighting levels as needed.
If the target image is not clearly displayed on the vision monitor, press the [Mark Light] button and adjust
the lighting levels.
If the "Outer Level" and "Inner Level" are OFF or set to "0", increase these lighting levels to about "+4" and
check that the target image is clearly displayed on the vision monitor. The "Coaxial Level" should be set
to "0" in this case.
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Using the advanced functions
7
Adjust the teach window size and position.
Press the [Cursor] tab to re-open the cursor teach screen.
Then adjust the teach window size and position as explained below, so that the target patterns or marks
fit in the teach window.
Teach window display screen
Teach window
Pattern
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1. Crosshairs are displayed on the vision monitor as the guide lines. The red frame displayed on the
vision monitor is the teach window. Adjust the teach window size and position using the [Start], [End],
[Move] and arrow buttons.
2. Press the [Start] button.
When this button is pressed, the top and left sides of the teach window frame changes to bold lines.
The teach window can be enlarged or reduced with the arrow keys, using the lower right corner of
the window as a stationary point. The window size can also be adjusted by dragging the mouse after
placing the mouse cursor on the frame (mouse cursor changes to a 2-way arrow).
Teach window display – Moving top and left sides
Teach window
Stationary pointPattern
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