CP43操作手册.pdf.pdf - 第88页
Chapter 1 Automatic Operation Part 2 1.13 T urnover Production In certain sequences, the parts on the device table are arranged so that after a certain board is finished, the device table for the next boar d has to move …
Chapter 1 Automatic OperationPart 2
1.12 Compensation When Placing Parts
A total of 36 nozzles can be fitted onto the FCP IV-3. Each nozzle's center
of rotation is usually slightly off center. There are also problems with
slippage of the part. This deviation is compensated for during placing.
• Nozzle X Offset
Movement of the nozzle center in the X direction during rotation is
compensated.
• Nozzle Y Offset
Movement of the nozzle center in the Y direction during rotation is
compensated.
• Nozzle Proper data X (SA Place Offset X ~ LL Place Offset X)
Deviation of the X coordinate placing point is compensated in the
machine.
• Nozzle Proper data Y (SA Place Offset Y ~ LL Place Offset Y)
Deviation of the Y coordinate placing point is compensated in the
machine.
Note: Refer to Part 3, Section 3 for command page information concerning
nozzle center measurement.
2 – 19Version 2.0
FCP IV-3 Operation
Chapter 1 Automatic OperationPart 2
1.13 Turnover Production
In certain sequences, the parts on the device table are arranged so that
after a certain board is finished, the device table for the next board has to
move a long distance before starting on the next board (Ex.: from D160 to
D1). In this case, in order to minimize the time spent waiting for the
board to change, the placing sequence can be read from front to back, and
then from back to front, switching each time a new board is loaded. This
means time is not lost waiting for the device table to return to its original
position every time a new board is loaded. This is called "turnover."
During turnover production, the sequence order is reversed every second
board, but the fiducial and block skip marks are always read before
placing.
When setting or cancelling turnover production, pressing the [SET],
[STATUS] and [TURNOVER] command function keys in that order will
alternately set or cancel production. Depending on the direction of the
sequence, either “Normal Turnover” or “Reverse Turnover” will be
displayed.
Note: After turnover is cancelled the sequence will execute in correct order.
Therefore, be careful not to cancel the turnover mode while the sequence
is operating in reverse order.
1.14 Changing Table Acceleration
There is little meaning in placing parts accurately if they are thrown out of
position by subsequent table movement. When the operator has a
problem with parts slipping on the board, the acceleration of the table can
be reduced. When "Table Speed" in Part data is set to “Low,” the
acceleration rate of the table will be lowered, and the parts on the board
will not be subjected to such rapid inertial changes.
Even though the acceleration rate of the table is lowered during
placement of parts, some parts may fall down or slip out of position while
the board is returning to the loading position.
Using "Machine Status B" in Proper data, it is possible to lower the
acceleration rate of the table after production of one board is completed
until the next board is fed to the placement position. This mode will be
valid for all boards, thereby lengthening the throughput time per board.
If possible, this mode may be turned off to improve efficiency.
Refer to Part 4, Chapter 2, Details of Proper Data for Proper data settings.
2 – 20Version 5.0
FCP IV-3 Operation
Chapter 1 Automatic OperationPart 2
1.15 Tape End Display
When the supply of a part is about to run out the device number will be
displayed on the monitor. Also, the signal tower lamp can be set to flash
(the color depends on what is entered in Proper data).
When a tape end is detected, the following actions will clear the device.
Program change: In joint mode and device change mode all
devices must be cleared. In changeover
mode the devices on the original table must
be cleared.
Parts Set switch: When parts run out during production in
device change mode, once the table has been
loaded and the PARTS SET switch is set to
[COMPLETE], then devices on that table will
be cleared.
Tape End Detection button: After the tape end has been reached and the
tape end sensor has been activated the
device will be cleared.
Power On: After the power has been turned on all the
tape end displays will be cleared.
1.16 Large Parts Pickup Check
Station 2 checks whether or not parts have been picked from the feeder.
When parts have not been picked, the machine will instantly stop, thereby
minimizing the number of expensive parts which are destroyed by the
tape cutter. This function is set in Part data, allowing it to be selected for
each part type. If a part could not be picked and recovery is set to "auto
recover" the machine will attempt the recovery process as soon as an error
which needs a recovery occurs.
How to set Part data:
Carrying_data
14. Pickup_check : This data item chooses whether or not a large part
pickup check will be carried out.
Note: The large parts pickup check function is only concerned with parts whose
thickness exceeds 1 mm. The check function is not carried out for parts
with a thickness (registered in Part data) of less than 1 mm.
2 – 21Version 5.0
FCP IV-3 Operation