2500_Users_Manual - 第146页

Operation 4-32 ProMa ster 25 00 U ser Ma nual Alignin g a Devic e to a DIP/SOIC/32-pi n PLCC Programm ing Mod ule When you process a device with a rectangular shaped body (DIP, SOIC, or 32-pin PLCC), the 2500 prompts you…

Operation

ProMaster 2500 User Manual 4-31

4. Press

START

. The beam rotates the device 90

and moves it over the

programming module. Push the beam down manually (on either side

of the beam limit bar), and ensure that the device moves into the

center of the programming module’s block.

When the alignment is correct, press and hold

on the 2500

keyboard to check the device’s insertion.

Repeat steps 1 through 4 until the device moves into the center of the

programming module and does not rub one set of contacts more than

another.

5. When the alignment is correct, press

START

to continue running the

Task.

Figure 4-25

Device too Close to the Front

Figure 4-26

Device too Close to the Back

If the device was too close to the FRONT, move the beam to the RIGHT.

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FRONT

If the device was too close to the BACK, move the beam to the LEFT.

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BACK

Operation

4-32 ProMaster 2500 User Manual

Aligning a Device to a DIP/SOIC/32-pin PLCC

Programming Module

When you process a device with a rectangular shaped body (DIP, SOIC,

or 32-pin PLCC), the 2500 prompts you to align the first device in the job

run. Follow these steps to align the beam to a device in the input track.

The track width should be adjusted for the device before you begin this

procedure (see page 4-12).

Note: This alignment procedure assumes that the devices are inserted in the

input track with

pin 1 oriented to the right

when you are standing in

front of the 2500.

1. Insert a tube of devices into the input track and close the hood.

2. Start the new Task. The beam moves over the first device and pauses.

The 2500 displays:

3. Press

←

and

→

to center the chuck over the device (left-to-right).

Pressing the arrow key once moves the beam a small step in that

direction.

Note: You can change beam alignment while a Task is running. When the beam

hesitates above the device, press

STOP

and use the front panel arrow keys.

4. Press and hold

on the 2500’s keyboard to lower the beam and

check the position of the chuck on the device. For a slower insertion,

lower the beam manually by pushing directly on the top of the beam

assembly, on either side of the beam’s limit bar (the limit bar is shown

in Figure 1-7). Adjust the left-to-right position if necessary. When the

beam is centered, press

START

5. The beam picks up the device, moves it over the programming

module, and pauses before inserting the device. The 2500 displays:

6. Align the device pins to the module’s contacts using the

←

and

→

keys to move the beam with the device. The left-most pins of the

device should line up with the left-most contacts on the module.

Press and hold

key to lower the device into the programming

module and check the alignment.

Note: Do not press the arrow keys while the device is on the programming

module. Doing so may cause the beam to break its vacuum hold and drop

the device.

PROGRAM/TEST ONLY

USE ARROW KEYS TO ALIGN BEAM WITH

DEVICE CENTER. PRESS [D] TO LOWER BEAM.

PRESS START TO CONTINUE.

PROGRAM/TEST ONLY

USE ARROW KEYS TO ALIGN DEVICE WITH

PROG. MODULE. PRESS [D] TO LOWER BEAM.

PRESS START TO CONTINUE.

Operation

ProMaster 2500 User Manual 4-33

If the device is not aligned properly, release the

key, use the arrow

keys to change the position, and lower the beam into the

programming module to check it again.

When you are satisfied with the left-to-right alignment, check the

front-to-back alignment. See if the device is pushing either the front

or the back contact set much more than the other.

7. If both front and back contact sets are being contacted equally, press

START

to begin processing devices.

If the device is not centered front-to-back,

note

whether it is too close to

the

front

or the

back

, and follow the procedure below to readjust its

position.

Adjust Front-to-back

Position

To realign so the device is inserted into the center of the programming

module (front-to-back axis), follow the steps below.

1. Exit the Task or Kit, restart it, and prepare to check the alignment

again.

2. The beam will pause above the device and the 2500 displays:

Figure 4-27

DIP Device Alignment

PROGRAM/TEST ONLY

USE ARROW KEYS TO ALIGN BEAM WITH

DEVICE CENTER. PRESS [D] TO LOWER BEAM.

PRESS START TO CONTINUE.

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