00197975-06_UM_TX-Serie_EN.pdf - 第148页
3 Technical data and assemblie s User manual SIPLACE TX-Series 3.7 PCB conveyor system From software version 713.0 Edition 01/20 20 148 3.7.2.3 Asynchronous transport mode In asynchronous mode, only one PCB in a transpor…
User manual SIPLACE TX-Series 3 Technical data and assemblies
From software version 713.0 Edition 01/2020 3.7 PCB conveyor system
147
3.7.2.1 Flexible PCB dual conveyor - lanes and types
The right-hand conveyor lane (viewed in the direction of transport) is known as "conveyor 1" while
the left conveyor lane is termed "conveyor 2" (see fig. 3.7 - 3
, page 148 ).
3.7.2.2 PCB dual conveyor in "single conveyor" (optional) mode
The dual conveyor can be configured online to create a single conveyor. One conveyor lane is
moved together completely and is disabled (see fig. 3.7 - 2
). This gives a conveyor track width of
up to 460 mm.
3
Fig. 3.7 - 2 Flexible dual conveyor in Single conveyor mode
Dual conveyor with widened conveyor track 2
(stationary conveyor side wall on left)
Conveyor track 2
deactivated
Conveyor track 1 Conveyor track 2 Conveyor track 1
deactivated
PCB transport direction PCB transport direction
Stationary conveyor side wall
Dual conveyor with widened conveyor track 1
(stationary conveyor side wall on right)
Movable conveyor side wall
3 Technical data and assemblies User manual SIPLACE TX-Series
3.7 PCB conveyor system From software version 713.0 Edition 01/2020
148
3.7.2.3 Asynchronous transport mode
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. Once the placement machine has received the job data (panel, setup), the
boards on the input conveyors are continuously transported to the available processing conveyor
(provided that the processing conveyor is free) throughout the placement operation. The place-
ment process begins as soon as a board is transported into the processing area. The PCBs are
processed one after another.
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.
3
Fig. 3.7 - 3 Transport modes
Synchronous transport mode
Asynchronous transport mode
User manual SIPLACE TX-Series 3 Technical data and assemblies
From software version 713.0 Edition 01/2020 3.7 PCB conveyor system
149
3.7.2.4 Synchronous transport mode
In synchronous mode, two PCBs of the same size are transported into the placement position at
the same time. They are processed as a common panel. When using products with greatly differ-
ing placement content, common optimization increases the performance of the whole content on
both boards.
The time needed to transport the board is reduced as two boards are always transported at the
same time. It also ensures better utilization of the nozzle configuration.
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.
If only one conveyor lane is occupied at the beginning of placement, this single use of the con-
veyor lane will be identified as "not to be placed".
If the dual conveyor is operated in synchronous mode, the ‘PCB whispering down the line’ option
is deactivated. The "Global bad fiducial" option cannot be used.
3.7.2.5 I-Placement
In addition to synchronous and asynchronous conveyor modes, I-Placement is also available. In
this mode, the two heads work simultaneously and populate a PCB totally independently of one
another. This further increases the output. I-Placement is a prerequisite for placement accuracy
of 15µm for the SIPLACE TX2i micron 15µm.
3.7.3 Controlling and width adjustment
3.7.3.1 Controlling using the Single Functions menu
The online help contains information on controlling the PCB conveyor system and on the Single
Functions menu.
3.7.3.2 Automatic width adjustment
When the command is received, the conveyor belts are set to the desired width. Different widths
are possible for a dual conveyor.
See the Online Help for detailed information about changing the conveyor track width.