吸嘴交换站ANCsensorAdjustStep.pdf - 第11页
Service Engineer Service Informati on No: SI120 5003E - 000 = ANC con trol board n ozzle sensor adjustmen t procedure 11 / 12 3. Countermeasu re for the LED light leak from the A NC control board area Some im provements …
Service Engineer
Service Information
No: SI1205003E-000= ANC control board nozzle sensor adjustment procedure
10/12
2.2 Clean the light path of the sensor
1. Remove the ANC nozzle storage part.
Remove the nozzle storage part in the same manner as when cleaning the acrylic plate.
2. Blow air into the station hole and sensor light path around the nozzle in the ANC nozzle
storage part to remove the dust.
Figure 14
Note:
If the station holes and the sensor light paths are too dusty, remove all the nozzles from the station and
blow air.
Make sure to use the dry and clean air.
If you use the contaminated air, the reflecting mirror gets dusty which weakens the sensor light.
4. Attach the nozzle storage part to the ANC body.
Clean the mounting surface of the nozzle storage part, and attach the nozzle storage part so that
the ANC shutter position matches the position of the cylinder for opening/closing the shutter.
The position is determined by the two (2) positioning pins, so the coordinate adjustment is not
required after attaching the nozzle storage part.
Caution:
If a chip or dust gets between the mounting surface and the nozzle storage part, the ANC coordinate
changes, and the nozzle change cannot be performed automatically. Make sure to clean the surface
beforehand.
2.3 Adjust the sensor threshold
After cleaning the ANC nozzle storage part, adjust the sensor threshold.
Perform the adjustment by using the CalibSm “ANC Manual” utility.
The adjustment method is the same as the method for checking the nozzle detection condition.
See “1.2 Check the threshold of the sensor by the CalibSm”.
Note:
If the nozzles can be changed automatically, it is recommended to use the “All Nozzle Adjust” function
for the adjustment.
Station hole for
storing the nozzle
Reflecting mirror
Sensor light path
Service Engineer
Service Information
No: SI1205003E-000= ANC control board nozzle sensor adjustment procedure
11/12
3. Countermeasure for the LED light leak from the ANC control
board area
Some improvements have been made to stabilize the sensitivity of the ANC control board nozzle
sensors for the YS24X model.
Countermeasure for the LED light leak due to the deformation of the LED shield plate
<Symptom>
When the LED shield plate warps due to aging or moisture absorption, the emitter side LED light
leaks and illuminate other sensor, which causes false detection.
Figure 15
<Countermeasure>
The thickness of the acrylic board has been changed from 1.5mm to 2.0mm. Press the entire
surface of the LED shield with the plate.
If the thickness of the currently used acrylic board is 1.5mm, it is recommended to change it to the
2.0mm thick one.
Item
Part Name
Part No.
Qty
Note
Acrylic board
BOARD, CLEAR
KKT-M9610-001
1
Thickness: 2.0mm
Table 1
* The 2.0mm thick acrylic board is used for the machines shipped in and after September 2012.
Note:
When changing the acrylic board from the 1.5mm thick one to the 2.0mm thick one, make sure to
readjust the sensor threshold and check and adjust the ANC height coordinate.
Countermeasure for the LED light leak due to the inappropriate position of the sticker on
the ANC control board
<Symptom>
In the YS24X machines, there are cases that the LED light leaks depending on the position and
the condition of the serial number sticker on the board surface (LED mounting surface).
<Countermeasure>
The situation may be improved by changing the position of the serial number sticker from on the
upper surface (LED mounting surface) to the reverse side surface (IC mounting surface).
Figure 16
Acrylic board
LED Shield plate
ANC Control board Assy.
The LED light leaks through the gap
between the ANC control board and the
LED shield plate.
Stick the Serial No. sticker on the
reverse side of the board.
Service Engineer
Service Information
No: SI1205003E-000= ANC control board nozzle sensor adjustment procedure
12/12
4. Replace the ANC control board
Note:
Check the following and if the ANC control board needs to be replaced, contact YAMAHA.
Check if the 2.0mm thick acrylic board is used for the ANC
See “3. Countermeasure for the LED light leak from the ANC control board area” for the details.
Check if the nozzles are detected properly
After cleaning the nozzle storage part, check if the nozzles are detected properly. In the following
cases, the ANC control board needs to be replaced.
When there is little difference in detection level when the nozzle is in the station and when it
is out of the station.
The detection level is unstable even after adjusting the sensor threshold.
Check before replacing the ANC control board
Check the following before replacing the board.
The movement of the ANC shutter is smooth and the position of when it opens and closes is
appropriate.
There is no problem with the connectors and harnesses connected to the ANC sensor board.
<The order to remove the parts for replacing the ANC control board>
“ANC nozzle storage part” “Acrylic board” “LED shield plate” “ANC sensor board”
Note:
The ANC body may need to be detached from the machine for the replacement depending on the
machine layout.
Figure 17
ANC nozzle storage part
Acrylic board
ANC sensor board
LED shield plate