创建组件识别数据的方法.pdf - 第22页

22/178 IM-SMT-VSNDI C-0002 -000 Items to be set Set value Explanation Lead Pitch N mm) Sets the lead pitch in th e N direction. (Set to 0 when there is one lead.) Lead Pitch S( mm) Sets the lead pitch in th e S direction…

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Body Size Z (mm)
6.0
Ruler Offset 5
Ruler Width 1
Reflct LL 2.0
Lead Width (mm) 0.6
Table 8
In the recognition result shown in
Figure 13
, “sizeh” is displayed as the average value between
the upper and lower lead width. Special recognition is available for recognizing the 2-pin
components. Please refer to “2.11.6. Special recognition of chip components (standard
chips, MELF chips, special chips)
” for the details.
Figure 13
2.2. Mini-mold trasnsistors / SOTs
<Items to be set for mini-mold transistors and SOTs>
Items to be set Set value Explanation
Alignment Group
IC Sets the component category.
Alignment Type Mini-Tr/SOT
Sets the component type.
Comp. Threshold
Sets the detection level difference for lead detection
.
(See “Appendix 2. Detection level differences used to
detect leads (threshold value)”
)
Comp. Tolerance
Specifies the shape tolerance as a percentage.
Search Area
(mm)
Sets the range for detection.
Body Size X
(mm)
Sets the outer edge size.
Body Size Y
(mm)
Sets the outer edge size.
Body Size Z
(mm)
Sets the outer edge size.
Ruler Offset
Sets the offset amount for the detection line.
Ruler Width
Lead Number N
Sets the number of the leads in the N direction.
Lead Number S
Sets the number of the leads in the S direction.
Reflct LL
Sets the lead length on the image.
Lead Width
(mm)
Sets the lead width.
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Items to be set Set value Explanation
Lead Pitch N
mm)
Sets the lead pitch in the N direction.
(Set to 0 when there is one lead.)
Lead Pitch S(
mm)
Sets the lead pitch in the S direction.
(Set to 0 when there is one lead.)
Table 9
This is the recognition mode for components such as mini-mold transistors and SOTs with
leads in the N and S directions. It is possible to define the number of the leads and the lead
pitch separately for N and S directions.
Though there is no need for the upper and lower directions to be symmetrical, the left and
right directions must be symmetrical.
The lead width and lead length are the same in the N and the S directions.
Consequently, all of the leads need to be the same shape.
When these conditions are not satisfied, please use the special mode for recognition.
When only the upper and lower lead width and lead length of the components are different,
the components can also be recognized by Power Transistor mode. (Please refer to P.29
“2.3. P-Tr” for the details.)
Figure 14
<Recognition check items>
Items Yes/No Notes
Body Size May Exist
Only the outer edge dimension Y is checked.
(Note 1)
Lead pitch Yes The pitch in the direction with one lead is not checked.
Lead width No
Lead length No
Lead position
Yes
Checks the lead tip position by using [Body Size Y x
tolerance] as the check range.
(Note 2)
Extra leads May Exist
Checks whether there are extra leads aside from the
defined leads. (
Note 3)
.
Table 10
Note:
1. This function performs a check only when the check function is validated in the
application software. (Some versions are not equipped with this function.)
2. See “Appendix 4. Lead position check” for the details of the “Lead position check”
function.
3. The function checks if there is an identical shape lead outside the detected lead, and if
Lead width
Body Size Y
Body Size X
Pitch S
Lead length
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there is, it is determined to be an error. (Some versions are not equipped with this
function.)
Table 11 is the example of actual definitions and the recognition results.
<< Items to be set for Mini-mold trasnsistors / SOTs >>
Items to be set Set value
Alignment Group IC
Alignment Type Mini-Tr/SOT
Comp. Threshold 45
Comp. Tolerance 20
Search Area (mm) 2.0
Body Size X (mm) 2.9
Body Size Y (mm) 2.6
Body Size Z (mm) 1.1
Ruler Offset 4
Ruler Width 1
Lead Number N 1
Lead Number S 2
Reflct LL 0.3
Lead Width (mm) 0.3
Lead Pitch N (mm) 0
Lead Pitch S (mm) 1.75
Table 11
Figure 15
If the LED that has four leads and the lead width of one of the lead is different from the others
is recognized by standard mini-transistor /SOT recognition data, the correct result cannot be
obtained due to the different lead width.
Items to be set Set value
Alignment Group IC
Alignment Type Mini-Tr/SOT
Comp. Threshold 50
Comp. Tolerance 30
Search Area (mm) 5.0
Body Size X (mm) 3.0
Body Size Y (mm) 3.2
Body Size Z (mm) 1.2