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User Manual HS-50 11 Station extensions / options Software Vers ion 5.0101/99 Issue 11.3 Dual conveyor 391 If the plac ement se quence is inter rupted, the conveyo r inter face wi ll be dis abled an d the P CBs currently…
11 Station extensions / options User Manual HS-50
11.3 Dual conveyor Software Version 5.01 01/99 Issue
390
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As the name suggests, the dual conveyor has two transport tracks, which are electrically and me-
chanically independent of one another. In the Standard version, the right-hand side is the fixed
side. There is another version, however, in which the left-hand side is the fixed side.
There are two conveyor modes: "Dual conveyor synchronous" and "Dual conveyor asynchronous.
Enter the conveyor mode you wish to use in the machine data (real.ma).
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The right transport track (viewed in the transport direction) is designated "Transport 1" and the left
as "Transport 2" (see Fig. 11.3 - 1).
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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 con-
veying time of one PCB, thus considerably increasing performance, particularly for PCBs with a
short cycle time.
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Once the machine has received the job data (cluster, set-up), the PCBs on the feeding belts are
continuously transported to the available processing belt (provided that the belt is free) throughout
the placement operation. The placement sequence starts as soon as a PCB has moved onto the
relevant processing belt. The PCBs are processed one after another.
PLEASE NOTE
The components to be placed and the width of the PCBs must be identical on transport track 1
and 2.
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Single conveyor 0
Dual conveyor synchronous 1
Dual conveyor asynchronous 2
User Manual HS-50 11 Station extensions / options
Software Version 5.0101/99 Issue 11.3 Dual conveyor
391
If the placement sequence is interrupted, the conveyor interface will be disabled and the PCBs
currently on the processing belts will be completed.
The conveyor interface is disabled or enabled simultaneously for both transport tracks.
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In synchronous mode, two PCBs of the same size are moved into the placement position at the
same time. They must be processed as a single cluster.
This enables the top and bottom of a PCB to be processed on a single line. This reduces the time
needed to transport the PCBs, since two PCBs are always transported at the same time.
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PCBs on transport tracks 1 and 2 are moved synchronously (i.e. the conveyor belts are indepen-
dent of one another, but are controlled synchronously) on the conveyor sections. The components
to be placed for transport track 1 and 2 must be organised as a cluster in two circuit images (see
the line computer operating instructions).
If only one transport track (or processing belt) is occupied at the start of the placement sequence,
the circuit image for this conveyor section is identified as "do not place".
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Control of the dual conveyor and the Single functions menu are described in section 5 of these
operating instructions.
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PLEASE NOTE
The conveyor setpoint width relates to both conveyor belts. When the command is received, the
conveyor belts are set to the setpoint width one after another.
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11 Station extensions / options User Manual HS-50
11.3 Dual conveyor Software Version 5.01 01/99 Issue
392
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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 in-
structions.
PCB format
50 mm x 50 mm to 368 mm x 216 mm
2" x 2" to 14.5 " x 8.5 "
PCB thickness 0.3 mm to 4.5 mm
Maximum PCB warpage
Up: 4.5 mm - PCB thickness
Down: 0.3 mm + PCB thickness
Clearance on bottom of PCB
Standard: 25 mm
Option: up to 40 mm
PCB conveyor height
830 ± 15 mm (standard)
950 ± 15 mm (option) SMEMA
Type of interface
Siemens (standard)
SMEMA (option)
Free component guide edge 3 mm
PCB changeover time 2.5 s
Fixed transport side Right (standard), left (option)
Components to be placed per conveyor
Synchronous: same or different
Asynchronous: same
PCB width per conveyor
Synchronous: different
Asynchronous: same
Ink spot recognition
Synchronous: not possible
Asynchronous: possible
Automatic width adjustment
Synchronous: not possible
Asynchronous: possible