2OM-1064-002.pdf - 第28页

PRE-PLACED COMPONENT THICKNESS TOP When some components are placed previously (in advance) on the top of a P .C.B. in the upstream line (input machine, etc.) and the P .C.B. is already transferred to the machine, be sure…

100%1 / 258
P.C.B. HEIGHT OFFSET
When a P.C.B. on a jig P.C.B. (such as a mother board) is
positioned, the upper surface level of the P.C.B. may extend
beyond the reference plane. In this case, set the offset data.
The head can be slid uniformly up and down according to the
offset data without changing each component library data
(placement level) for head descending distance at placement.
2. Pattern Program
P.C.B
.
Upper Surface of P.C.B.
Reference Plane
Clamp Plates
Chute
(Normal Case)
Jig P.C.B.
Upper Surface of P.C.B.
Reference Plane
Clamp Plates
P.C.B. Level
Chute
P.C.B.
T (Thickness)
(Jig P.C.B. Used)
Fig. 2.11
When the upper surface of the P.C.B. extends beyond the ref-
erence plane as shown in Fig. 2.11, enter plus data (a param-
eter with a plus (+) sign) to increase the head descending dis-
tance at placement.
The effective range varies depending on the components to be
placed.
In the case of normal P.C.B.’s for which a special jig P.C.B. is
not used, set “0” (zero) in the data box.
Note: When a jig P.C.B. is used, consult our sales personnel
separately for details.
PLACEMENT MODE
“PLACE” or “PASS” mode can be selected.
• When pattern program data in “PASS” mode is set for auto-
matic operation, the vacuum pump motor is automatically
turned off.
Fig. 2.10
9910-001 2-15 Tg0247-PM-PM
PRE-PLACED COMPONENT THICKNESS
TOP
When some components are placed previously (in advance) on
the top of a P.C.B. in the upstream line (input machine, etc.) and
the P.C.B. is already transferred to the machine, be sure to enter
the thickness of the highest component of all in the data box.
2. Pattern Program
L-Axis Origin
Reference: Upper Surface
of P.C.B.
Lower Pass Line
Previously-Placed Component
(including the already-placed component)
8.5 mm
(Design Dimension)
P. C. B.
Upper Pass Line
28 mm
(Design Dimension)
Nozzle
P.C.B.
Tallest Previously-Placed Component
Fig. 2.12
Fig. 2.13
Lower Pass Line : This line is the lowest level for the X/Y
beam movement when the thickness of a
previously-placed component (already-
placed component) is 6.5 mm or less. When
this level is not maintained, a physical in-
terference with a structure occurs.
This level is also regarded as a focus level
for component recognition.
As no height regulation is made for the pre-
viously-placed components (already-placed
components) during the X/Y beam move-
ment (component picks, component recog-
nition, component discharge operation, etc.)
outside the P.C.B. area (outside the area
where a P.C.B. is located for component
placement), the X/Y beam moves, keeping
the lower ends of the nozzles (without
picked components) and the lowest ends of
the picked components in this level.
Upper Pass Line : This line is the lowest level for the X/Y
beam movement when the thickness of a
previously-placed component (already-
placed component) is more than 6.5 mm.
(Only in the P.C.B. area)
9910-001 2-16 Tg0247-PM-PM
Fig. 2.14
• Data Input Range: 0 to 30.00 mm
Note: When the thickness of a previously-placed component
is more than 30.00 mm and 40.00 mm or less, consult
our sales personnel for details.
FEEDER NO. OFFSET : Reserved Data
The set offset data is used to shift the feeder allocation on the
feeder base.
Note: The multi-layer tray unit is not affected by the set pa-
rameter.
Set the offset value for the component allocation to the feeder
base.
The set parameter is added to the feeder slot No. (FDR NO.)
designated in the placement data.
P.C.B. POSITIONING REF.
Shown is the reference of placement coordinates.
L-BACK : Left Back Reference
L-FRONT : Left Front Reference
R-FRONT : Right Front Reference
R-BACK : Right Back Reference
Note: No editing is available.
The maximum thickness of the placed component is managed
on the machine side to automatically change the component
transfer level every time a component is placed, avoiding any
interference between the picked and placed components.
• It is advisable that shorter components be placed before the
tallest one.
Note: When P.C.B.’s have previously-placed components and
“0” (no previously-placed components) is set in the
data box, the picked components may interfere with
the placed components.
• Data Input Range: 0 to 25.40 mm
BOTTOM
When some components are placed previously (in advance)
on the back of a P.C.B. in the upstream line (input machine,
etc.) and the P.C.B. is already transferred to the machine, be
sure to enter the thickness of the highest component of all in
the data box.
The set parameter is used to determine the position (elevation)
of the first backup table when the P.C.B. is transferred to the
P.C.B. positioning section.
Note: When P.C.B.’s have previously-placed components and
“0” (no previously-placed components) is set in the data
box, the support pins may interfere with the previously-
placed components while the P.C.B. is being transferred
to the P.C.B. positioning section.
2. Pattern Program
P.C.B.
Tallest Previously-Placed Component
9910-001 2-17 Tg0247-PM-PM