DECAN_S1_Administrator′s_Guide(Eng_Ver1.5)_Print.pdf - 第179页
7-15 Part Registration until vacuum is off. Figure7.6 “Place Delay Time” Delay Time during Placement For example, if the Place, V ac OFF and Blow ON are set to 50, 10 and 10 respectively: The time required is 50ms from…
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Next Generation, Multi-Functional Placer DECAN S1 Administrator’s Guide
synchronized pick up.
<Y> edit box
Set the allowance in Y direction as a percentage of Part Size Y at the time of
synchronized pick up.
<Retry> combo box
Set the number of retries when the component pickups was not successful.
Available numbers are 1 - 5.
<Delay> group
Set various delay time for pickups, placement, and dump operations. Set the Delay
related to the head movement.
<Pick Up> edit box
During component pickups, the delay time after the head has come down until
the head starts ascending.
Figure7.5 “Pick-Up Delay Time” Delay Time during Placement
<Place> edit box
During component placement, the delay time after the head has come down
until the head starts ascending.
<Blow On> edit box
During component placement, The time from vacuum off till blown on
once the head stops upon completion of descent.
Unit: msec (Possible to setup for 10 msec intervals)
<Dump> edit box
During component dumping, the delay time after the head has come down
until the head starts ascending.
<Vac Off> edit box
During component placement, the delay time after the head has come down
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Part Registration
until vacuum is off.
Figure7.6 “Place Delay Time” Delay Time during Placement
For example, if the Place, Vac OFF and Blow ON are set to 50, 10 and 10
respectively:
The time required is 50ms from the time the Z axis finishes moving down
for placement until the Z axis begins to move up after all processes are
completed.
The Vac off 10 means that the vacuum will be turned off in 10ms after the
Z axis finishes moving down for placement.
The Blow ON 10 refers to the delay time from the time the Z axis finishes
moving down to the time the Blow On is performed.
Generally, the Blow ON value is set to the time same as the Vac Off time.
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Next Generation, Multi-Functional Placer DECAN S1 Administrator’s Guide
Memo Normally, the type of the time graph becomes different by parts.
For example, in the case of the general rectangular chips greater
than 1608, the parts are very light. Therefore, if the Z-axis moves
up before the vacuum disappears completely, the part may fall to
the PCB when the vacuum disappears while it moves up along
with the head.
In other words, item (3) in the following figure may act as the most
important factor for general rectangular chips.
From many test and experiment results, it was known that the
required time in item (3) was at least 0ms up to 20ms. Since this is
very important, the user must have this in mind.