00195193-02 SG D4 FSE en (1).pdf - 第319页

Sitest Basic description of all calibration steps Component camera S tudent Guide SIPLACE D4 (FSE) Sitest EN 09/2006 300 PCB Camera - CO Camera Offset:  During measur ement of the segment offset up (I) , the calibration…

Sitest

Travel Range Basic description of all calibration steps

Student Guide SIPLACE D4 (FSE)

EN 09/2006 Sitest

299

12.3.4 Travel Range

12.3.5 Component camera

 The Pixel size of the CCD sensors of the camera is determined in µm. Measured and calculated with

Ax/Bx/Cx/Ay/ByCy calibration values. Saved in

camera.xml

as: XU_Pixel / YU_Pixel in nm

 The pixel size is:

approx. 150000 nm for CO camera SST 28 (for 12-segment head)

approx. 81000 nm for CO camera SST 29 (for 6-segment head/12-segment head option)

 The camera center is determined.

 The Mounting angle of the CCD-chip in the camera to the turning level of the placement star is

measured. The value is saved as Kamera_winkel (camera_angle) in the data block of the CO

camera, in the

camera.xml

Sequence segment offset top (I):

12.3 - 1: Princple picture of a calibration tool in the camera in 0° (left); in 180°(right).

 The gantry moves to the zero pulse, to

calibrate the travel range and then moves on

to the HW limit switch. Measure the position

value at the position counter

 The software limit switch (Y +/- 1.5 mm,

X +/- 0.5 mm) is calculated.

 In the case of the Y axes, only the outer HW

end position switches are approached in each

case. The other end position of the travel

range is calculated.

Legend:

 1 - 4: Gantry 1-4

 S1 - S4: Sector 1-4

 X: Travel range X

 Y: Travel range Y

 T: Transport direction

Sitest

Basic description of all calibration steps Component camera

Student Guide SIPLACE D4 (FSE)

Sitest EN 09/2006

300

PCB Camera - CO Camera Offset:

 During measurement of the segment offset up (I), the calibration of the PCB camera -> CO camera

offset is performed with segment 1:

 The distance in X- and Y- direction of the camera centers is determined in µm.

 The top segment offset (I) is compared to a calculated average value. (the segment offset I of

segment 1 is therefore no longer 0.)

 Segment 1 is the reference point for calculation of the offset (I and II).

 This distance is saved in REAL.MA at ‘Kopfoffsets’ at Kopf 1 Kopfoffset_X /..Y. The segment offset

down (II) for segment 1 is 0 (see below).

 The segment offsets for the remaining 11 segments are saved in the PIP_OFF.MA file (as deviation

to segment 1).

 Deviation in the X and Y direction of the rotary axis for the remaining segments, compared to

segment 1 (in µm).

 Measurement is performed at 0° and 180° or 90° and 270° in each case. The center of the segment

is then determined from these 0/180° or 90/270° values.

 The values for the segment offset are saved in the PIP_OFF.MA file.

Sequence segment offset bottom (II):

12.3 - 2: Sequence at one nozzle:

 After the segment offset up (I) calibration step has been performed, the calibration procedure for the

segment offset down (II) begins for C&P DLM 3:

 Is the calibration tool picked with a Nozzle under 0 degree; optically centered and placed with the

PCB-camera is the exact placement position determined (in µm).

 Is the calibration tool picked with a Nozzle under 90 degree; optically centered and placed with the

PCB-camera is the exact placement position determined (in µm).

 Is the calibration tool picked with a Nozzle under 180 degree; placed with the PCB-camera is the

exact placement position determined (in µm).

 Is the calibration tool picked with a Nozzle under 270 degree; placed with the PCB-camera is the

exact placement position determined (in µm).

ATTENTION:

For the segment offset I (top), the standard deviation value should not exceed

600 µm. The difference between the segments must not exceed +/- 150 µm.

Segment offset II (down) absolute threshold +/- 150 µm and difference in values

max. +/- 150 µm.

NOTE:

The segment offset II (bottom), from the first segment is always 0 that is the

reference value to the other segments.

Sitest

Nozzle Changer (C&P head) Basic description of all calibration steps

Student Guide SIPLACE D4 (FSE)

EN 09/2006 Sitest

301

This sequence is repeated. From the 8 placement positions is the average value of the place.

Deviation calculated and taken for the seg. offset.

12.3.6 Nozzle Changer (C&P head)

 Each nozzle magazine has an fiducial which will recognize during the calibration procedure at first.

 optional, calibrate the pick up height from the nozzle changer.

 optional, calibrate the reject position from the nozzle changer, necessary to reject nozzle which are

defekt.

12.3.7 Calibrate and teach machine positions

New function for calibrate the positions is the teach menu before calibrate, so that you can teach the

correct position for a successfull calibration.

12.3.7.1 Conveyor sides

This new calibration procedure is necessary for the modular conveyor system.

With the modular conveyor are all conveyor sides adjustable. For adjustment the conveyor sides we use

one stepper motor which is connected via a toothed belt to the driver unit. The position of the conveyor

side is recognized by a proximity switch, meaning that there is a switching point for each conveyor side.

With this calibration the switch points are optimized of the entire travel range of the width adjustment.

Calibration is required to ensure that the two adjustment drives move the conveyor sides parallel to one

another.

Automatically Sequence (Transport mapping):

 Initialize the driver unit, move to the right side (limit switch)

 Driver unit recognize the fixed conveyor side (sides dual conveyor) move the conveyor sides a

standard position of 55mm.

 The driver unit moves the conveyor side(s) step-by-step (10 mm steps) and determines the offset of

the switching points for the two driver units in the various conveyor side positions.

 This calibration of the side position will be done for width adjustment wider and smaller.

 The results are saved in the conveyor controller as correction values and taken into account later

when setting and measuring the conveyor width.

12.3.7.2 Conveyor width calibration

The conveyor width offset can be determined by using a board with a width of your choice. This width

must be entered by the operator. This ensures that a consistent predefined tolerance (offset) is used

between the conveyor sides, for the various different conveyor widths, thus preventing the boards from

getting jammed.

ATTENTION:

Before starting calibration of the nozzle changer, check the nozzle changer

configuration and the component level.

NOTE:

Calibration needs to be performed for lanes 1 and 2.