西门子SIPLACE S-27 HM用户手册.pdf - 第173页
User Manual SIPLAC E S-27 HM 7 Station extensions Software vers ion SR.503.xx 07/ 2003 US Edition 7.3 Dual conv eyor 173 7.3.6 Synchronous transport mode 7.3.6.1 Description In sync hronous mod e, two P CBs of the same s…
7 Station extensions User Manual SIPLACE S-27 HM
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7.3.3 Defining the conveyor tracks
The right transport track (viewed in the transport direction) is designated "Transport 1" and the
left as "Transport 2" (see Fig. 7.3 - 1
).
7.3.4 Changing transport mode
7
7
7.3.5 Asynchronous transport mode
7.3.5.1 Description
In asynchronous mode, only one PCB in a transport track is processed. At the same time,
another PCB in the second transport track is moved into the placement position. This saves the
full conveying time of one PCB, thus considerably increasing performance, particularly for PCBs
with a short cycle time.
7.3.5.2 Function
Once the machine has received the job data (panel, set-up), the PCBs on the feeding belts are
continuously transported to the available center conveyor (provided that the center belt is free)
throughout the placement operation. The placement sequence starts as soon as a PCB has
moved onto the center belt. The PCBs are processed one after another.
PLEASE NOTE 7
The components to be placed and the width of the PCBs must be identical on transport track
1and2. 7
If the placement sequence is interrupted, the conveyor interface will be disabled and the PCBs
currently on the center conveyor will be completed.
The conveyor interface is disabled or enabled simultaneously for both transport tracks.
Conveyor mode Entry in the SITEST program
Single conveyor 0
Dual conveyor synchronous 1
Dual conveyor asynchronous 2
User Manual SIPLACE S-27 HM 7 Station extensions
Software version SR.503.xx 07/2003 US Edition 7.3 Dual conveyor
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7.3.6 Synchronous transport mode
7.3.6.1 Description
In synchronous mode, two PCBs of the same size are simultaneously moved to the placement
position. They must be processed as a common panel.
In this way, the top and bottom of a PCB can be processed on a single line, and the time required
to transport the PCB is shorter since two PCBs are always transported at the same time.
7.3.6.2 Function
PCBs on conveyor tracks 1 and 2 are moved synchronously onto the conveyor sections (i.e. the
conveyors are controlled synchronously, but independently of one another). The components to
be placed on conveyor tracks 1 and 2 must be organized into a panel via two subpanels. (See
the user manual for the line computer).
If only one conveyor track (or center conveyor) is full when the placement sequence starts, the
subpanel on this section will be identified as “not for placement”.
7.3.6.3 Restrictions
If the dual conveyor is operated in synchronous mode, the ‘PCB whispering down the line’ option
is deactivated. PCB barcode operation is not supported in this mode. The ‘Global ink spot’ option
cannot be used.
7.3.7 Controlling the dual conveyor using the Single Functions menu
The online help contains information on controlling the dual conveyor and on the Single Functions
menu.
7.3.8 Automatic width adjustment on the dual conveyor
The desired conveyor width relates to both conveyors. When the command is received, the con-
veyors are set to the desired width one after another.
PLEASE NOTE 7
Automatic width adjustment is deactivated if “synchronous transport” is selected.
7 Station extensions User Manual SIPLACE S-27 HM
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7.3.9 Technical data – dual conveyor
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7.3.10 Maintenance
The individual conveyor belts and the additional lifting table require the same maintenance as the
standard conveyor. Each conveyor belt must be maintained as described in the maintenance
instructions.
Fixed conveyor side Right (standard), left (optional)
Max. component height
6 mm for the 12-segment Collect&Place head
8.5 mm for the 6-segment Collect&Place head
PCB format 50 mm x 50 mm to 508 mm x 216 mm
2" x 2" to 20" x 8.5"
Long board: up to 610 mm (24"), (option)
PCB thickness 0.5 mm to 4.5 mm
Max. PCB warpage Up: 4.5 mm - PCB thickness
On bottom: 0.3 mm + PCB thickness
Clearance on PCB underside Standard: 25 mm
Option: max. 40 mm
PCB transport height 830 mm ± 15 mm (standard)
900 mm ± 15 mm (optional)
930 mm ± 15 mm (optional)
950 mm ± 15 mm (SMEMA: optional)
Type of interface Siemens (standard), (SMEMA optional)
Component-free PCB handling edge 3 mm
PCB changeover time 2.5 s
Conveyor mode Synchronous or asynchronous
Components on each conveyor Synchronous: different, asynchronous: same
PCB width on each conveyor Same
Ink spot recognition Synchronous: not possible, asynchronous: possible
Automatic width adjustment Synchronous: not possible, asynchronous: possible