西门子SIPLACE S-27 HM用户手册.pdf - 第175页
User Manual SIPLAC E S-27 HM 7 Station extensions Software vers ion SR.503.xx 07/2003 US Edition 7.4 PCB b arcode 175 7.4 PCB barc ode 7.4. 1 Ove rview The PCB barcode r eader is used to a utomatic ally reco rd and de co…
7 Station extensions User Manual SIPLACE S-27 HM
7.3 Dual conveyor Software version SR.503.xx07/2003 US Edition
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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
User Manual SIPLACE S-27 HM 7 Station extensions
Software version SR.503.xx 07/2003 US Edition 7.4 PCB barcode
175
7.4 PCB barcode
7.4.1 Overview
The PCB barcode reader is used to automatically record and decode barcodes on PCBs. The
PCB barcode reader sends the read data via its serial interface to the machine controller for fur-
ther processing.
The PCB barcode readers are installed on the input side of the placement machine, above and
below the PCB conveyor, so that barcode labels on the topside and underside of the PCBs can
be read.
One or two PCB barcode readers may be retrofitted in order to read the topside and underside of
the PCB on the transport track.
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Fig. 7.4 - 1 Position of the modules on the input side of the placement machine
(1) PCB barcode reading head
(2) Profiled rail for ‘underside’ PCB barcode reader
(3) Profiled rail for ‘topside’ PCB barcode reader
(T) Direction of PCB transport
7 Station extensions User Manual SIPLACE S-27 HM
7.4 PCB barcode Software version SR.503.xx07/2003 US Edition
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The PCB barcode readers are fixed to the top and bottom profiled rail using retainers. These can
be positioned as required on the profiled rails, and aligned with respect to the barcode labels.
Depending on the position of the barcode strips, the barcode reader can be attached in a few
simple steps so that the strips can be read parallel to or across the PCB transport direction.
7.4.2 Description of the functions
7.4.2.1 PCB barcode reader for the single conveyor
The SIPLACE PCB barcode reader supports the flexible manufacture of SMD products, and
increases placement reliability. It recognizes all the code types conventionally used in industrial
applications.
The laser scanner reads the barcode label on the topside or underside of each incoming PCB as
they are transported onto the input conveyor. The barcode data enables the line computer to
automatically select the correct barcode allocation list from the previously created barcode
assignment list, and sends it to the station. If a barcode filter is defined, only information that is
identified as relevant within the barcode is compared. This is a time-neutral operation that takes
place while a PCB already in the machine is placed. If several PCBs with the same barcode
enter one after another, the program is only sent the first time. The following requirements apply
to all products to be produced using the PCB barcode:
– The component set-up must be identical on all the machines on the line
– All PCBs must be of the same width
7.4.2.2 PCB barcode reader for the dual conveyor
On the dual conveyor, the PCB barcode is only used to transfer the barcode via the GEM inter-
face. This is absolutely essential. The placement program cannot be supplied automatically.