YSD_Users_E.pdf - 第157页

4-29 4 Making the dispensing stable 6 Make a gr aph of the measurement results. 1. Make a graph of the areas measured with a new syringe full of liquid (100%) and a used syringe (50%). 2. Make a graph using the proportio…

100%1 / 401
4-28
4
Making the dispensing stable
4
Set the parameters
For the setting of each nozzle, see “
n
Nozzle settings” in “3.1 Using the dispense correction function” in
this chapter.
Parameter setting
Example for Type 111 nozzle
Dispensing location
[Auto Input Timer] button
[Execute] button
Type
Head
64445-N7-00
n
Example of settings for Type 111 nozzle
Parameter Setting Description
Head Head 1 Select the head to use for dispensing.
Type Type 11 Select the correction number to make settings.
Num. 5 Set the number of measurement points. (5 or more)
Pre. Disp. Num. 5 Set the number of predispensing points. (3 or more)
Mark No. 11 Set the mark No. used for recognition.
Speed 100 Set the speed to “100”.
Use Section 10 Set the number of sections to be corrected. (10 is recommended)
Height Cor. Not used If a non-contact nozzle is used, set this item to “Use”.
Dispensing location Dot station Set the dispensing location.
5
Start measurements.
1. Set the air pressure equal to the pressure for new syringes, and press the [Execute] button. The paper
feed dialog box appears. Check that no dots remain and press the [OK] button.
2. On the [Monitor]-[Vision] screen, check the recognition results and press the [Yes] button while
making a note of the measurement data.
3. Repeat measurements while increasing the timer until the area of the dispensed dots reaches the
maximum area that will be obtained with a new syringe.
4-29
4
Making the dispensing stable
6
Make a graph of the measurement results.
1. Make a graph of the areas measured with a new syringe full of liquid (100%) and a used syringe (50%).
2. Make a graph using the proportion type and constant type values that were obtained from the
following calculation formulas.
• Proportion type
Dispensed area of proportion type correction = 0.1 / 0.3 × Dispensed area obtained when the
remaining amount is 100%
• Constant type
Dispensed area of constant type correction = Dispensed area obtained when the remaining amount
is 100% + (0.1 - 0.3)
The value 0.3 is the dispensed area obtained when the remaining amount is 100% and the dispensing
liquid amount is 20.
The value 0.1 is the dispensed area obtained when the remaining amount is 50% and the dispensing
liquid amount is 20.
For details on the proportion type and constant type, see the descriptions in “
n
Proportion type” and
“
n
Constant type”.
3. Draw the lines by plotting the dispensed areas obtained with proportion type and constant type
corrections applied when the remaining amount is 50% and the dispensing liquid amount is 20. In the
case of this graph, the difference of the constant type is smaller, so use the constant type.
0
0.1
0.2
0.3
0.4
0.5
0.6
0 20 40 60 80
100
Measurement result graph
Example
Dispensing liquid amount [msec]
Dispensed area [mm2]
Difference of constant type
Difference of proportion type
Remaining amount 100%
Remaining amount 50%
Constant type correction
Proportion type correction
63412-N7-00
n
NOTE
If it is difficult to select the calculation type within the dispensing liquid amount range specified by dispense correction,
then use the calculation type that shows a smaller difference in the area at the maximum dispensing liquid amount.
4-30
4
Making the dispensing stable
7
Set the calculation type.
Open the [Machine] - “Specification Information” - “Dispense Correction” screen, and select the
correction type and the calculation type.
”Dispense Correction” screen in VmSpec window
Select “Dispense Correction”.
Select the correction type to edit.
Select the calculation type.
64446-N7-00