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Exatron 3000B
www.exatron.com 5-19 Chapter 5 Diagnostics
Modified Automatic Z Adjust Feature
All E
XATRON
3000B Series Plunge-to-Board handlers come equipped with a modified version of our
automatic Z plunger top position adjustment. After the operator performs certain initializing functions
manually, the handler automatically positions the plunger's pick-up block to correctly intercept and secure
the DUT before plunging it to the contacts.
Proper plunger positioning is important for the smooth operation of the Model 3000B. The following
plunger self-adjustment operation should be implemented whenever the device size is changed so that the
handler may conform to specific device height.
The
SELF ADJUST Z
function may be activated from either of two points during handler operation:
A.
When the handler has just powered up and is in "Handler Set Up," follow the procedure
described below.
B.
Press the
[MANUAL]
button to place the handler into
MANUAL MODE
, then press the
[5]
key to display
SELF ADJ Z PLCC
.
Proceed to Step 3 below.
Please refer to Figure 5-2 later in this chapter for mechanical details.
1.
BEFORE POWERING UP THE HANDLER: Allow the handler to confirm its
current
plunger top
position by manually moving the plunger down, if necessary, so that it is not touching the top position
micro switch.
2.
POWER UP THE HANDLER. Answer all set-up questions appearing on the handler controller
display.
3.
WHEN THE HANDLER DISPLAYS
SELF ADJ Z PLCC,
-
Install an output tube into the bin 5 position.
-
Load a tube of devices into the octoloader so that the devices will fall into the index section or
manually load a single device into the index section.
4.
PRESS THE
[RUN]
BUTTON to display the current
UP STEPS = ____
message, followed
immediately by
SET PICK UP?
The following functions are now available:
[1]
key = The plunger will jog up one step (approx. 0.003")
[2]
key =
UP STEPS = ____
The current setting will be displayed again, followed immediately by
SET PICK UP?
NOTE: To exit without making any changes, press
[Enter]
now.
[3]
key = The plunger will move down one step (approx. 0.003")
[4]
key = The plunger will move up five steps, or as far as the Z upper limit switch,
whichever comes first.
[5]
key = The plunger will move up until it finds the Z upper limit switch.
[6]
key = The plunger will move down five steps.
[7]
key = The plunger will move up the current "up steps" setting.
[8]
key = N/A
[9]
key = The plunger will move down the current "up steps" setting.