SM411F_Service Manual.pdf - 第56页

1.2.4. Common XY Calibration A process to coincide the coordinates of two Gantries. If it is not done correctly , there will be an offset between Gantry 1 and Gantry2, which will not only af fect placement precision but …

The reference values for the calibration of the Fiducial Camera is as follows.

 Fiducial Camera (FOV 12)

ScaleX:23.0~27.0(μm/pixel)

ScaleY: 23.0~27.0 (μm/pixel)

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1.2.4. Common XY Calibration

A process to coincide the coordinates of two Gantries. If it is not done correctly,

there will be an offset between Gantry 1 and Gantry2, which will not only affect

placement precision but also cause collision of gantries.

Figure 1-2.”Gantry-to-Gantry Common XY’ dialogbox

 <Automatic Next> checkbox

Select this check box and click the <Next> button. Then the process that

matches the coordinate systems between gantries is performed automatically.

 <Manual> checkbox

Move the gantry to the designated position by using the teaching box and

perform the process that matches the coordinate systems between gantries

manually.

 <Test only> check box

When calibration is done after selecting this, the result is displayed but not

saved. Consequently, it is possible to check the changes made in the current

machine compare to the previous data.

 <Device> combo box

Select the Fiducial camera to be moved.

 <Move> button

Move the fiducial camera of the selected gantry.

Warning

Operation error caused by unauthorized or untrained

personnel or insufficient checking before calibration could

severely damage the machine

or the set up data, or it could cause personal injury of the

operator or the worker near the machine.

Before carrying out calibration, check the item to be

calibrated and check if there is any worker near the

machine.

And calibration must be carried out by an authorized and

trained user only.

 <Light> button

 Inner

Adjusts the inner lighting for the Down Camera of the selected Gantry.

 Outer

Adjusts the outer lighting for the Down Camera of the selected Gantry.

1.2.4.1. Procedure

1. Click the <Move> button to move the fiducial camera to the designated

position.

2. Adjust the position of the fiducial camera by using the teaching box so that the

center of the cross hair displayed in the SMVision window matches with the

center of the fiducial mark that was already set on the conveyor. At this time,

all gantry cameras have to be movable to this position.

3. Click the <Get> button to reflect the current coordinate.

4. If the <Next> button is clicked after selecting the <Automatic Next> check box,

the same movement is performed automatically.

5. If finished properly, click the <Update> button.

The manual setup method is as follows.

1. Move the fiducial camera of the corresponding gantry to the position of the

fiducial mark selected from the Grid group.

2. Adjust the position of the fiducial camera by using the teaching box so that the

center of the cross hair displayed in the SMVision window matches with the

center of the fiducial mark that was already set on the conveyor

3. Click <Get> button to reflect the current coordinate.

4. move the other gantries to the position designated in step 1.

5. Click <Get> button to reflect the current coordinate.

6. Wait until the Gantry moves to Home, automatically detects Collision sensor,

and returns to Home again.

Caution

Be sure to perform the “Gantry to Gantry Common XY”

calibration before performing the ‘Gantry Mapping’

(Disable Condition). If ‘Gantry Mapping’ is already

enabled, perform the ‘Gantry to Gantry Common XY”

calibration after disabling the ‘Gantry Mapping’.