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User manual SIPLAC E HF series 3 Technical data Software Vers ion SR.50x.xx 01/2006 US Edition 3.13 Flexible dual P CB conveyor 157 3.13.7.1 Asynchronous transport mode Description 3 In asynchr onous mo de, only one PCB …

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3 Technical data User manual SIPLACE HF series
3.13 Flexible dual PCB conveyor Software Version SR.50x.xx 01/2006 US Edition
156
3.13.6 Definition of the conveyor track width
3.13.6.1 Standard width
The standard width of the conveyor track is the maximum conveyor width defined by the desired
position of the stationary conveyor side. It is no more than 216 mm per track. 3
3.13.6.2 Overwide conveyor track
The conveyor track can be widened to 250 mm maximum by moving the stationary conveyor side
wall out of its normal position. 3
3.13.6.3 Dual conveyor in Single conveyor mode
The dual conveyor can be configured online to create a single conveyor. To do this, one conveyor
track is moved fully together and deactivated (see Fig. 3.13 - 2
, page 155). This gives a conveyor
track width of up to 450 mm. 3
3.13.7 Transport modes
The flexible dual conveyor can be used in two modes: 3
– Synchronous transport mode
– Asynchronous transport mode
3
Fig. 3.13 - 3 Transport modes
Synchronous
transport mode
Asynchronous
transport mode
User manual SIPLACE HF series 3 Technical data
Software Version SR.50x.xx 01/2006 US Edition 3.13 Flexible dual PCB conveyor
157
3.13.7.1 Asynchronous transport mode
Description 3
In asynchronous mode, only one PCB in a transport track is processed. At the same time, an-
other 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. 3
Function 3
Once the machine has received the job data (panel, set-up), the PCBs on the feeding belts are
continuously transported to the available processing belt (provided that the processing belt is
free) throughout the placement operation. The placement sequence starts as soon as a PCB has
moved onto the processing belt. The PCBs are processed one after another. 3
If the placement sequence is interrupted, the conveyor interface will be disabled and the PCBs
currently on the processing belts will be completed. 3
The conveyor interface is disabled or enabled simultaneously for both transport tracks. 3
3.13.7.2 Synchronous transport mode
Description 3
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 common panel. 3
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. It also
ensures better utilization of the nozzle configuration. 3
Function 3
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 SIPLACE Pro user manual). 3
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”. 3
3 Technical data User manual SIPLACE HF series
3.13 Flexible dual PCB conveyor Software Version SR.50x.xx 01/2006 US Edition
158
Restrictions 3
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 bad fiducial"
option cannot be used. 3
3.13.8 Changing transport mode
3
3
3.13.9 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. 3
3
3
3.13.10 Automatic width adjustment on the dual conveyor
When the command is received, the conveyors are set to the desired width one after another. Dif-
ferent widths are possible. 3
PLEASE NOTE 3
Automatic width adjustment is deactivated if “synchronous transport” is selected.
3
See the Online Help for detailed information about changing the conveyor track width. 3
3
Conveyor mode Entry in the SITEST program
Single conveyor 0
Dual conveyor, synchronous 1
Dual conveyor, asynchronous 2