Purge Toggle; Safe Z - EFD Ultra 325TT User Manual

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A NORDSON COMPANY
4.6

PURGE TOGGLE

This screen performs the same function as in Section 4.5, except it is for the Toggle Valve instead
of Valve #1.

4.7 SAFE Z

This feature allows a lower "safe" Z height (reference to Z=0) to be set so as to reduce the time it
would otherwise take if the Z head has to return to the "0" position before each XY movement. It is
especially useful if the part is very low i.e. daylight is large.
The safe Z height is the height the Z head will move to before any XY non-dispense movements.
Note that the height the Z head moves to between dispense locations within a program, is dictated
by the retract distance specified for that line or dot type.
The safe Z height should be a high enough position to clear any objects in the machine's XY
envelope. If the Safe Z is not configured, the machine will move the Z head up to the "0" position
before any XY movements.
To set a safe Z height:
1. Select Safe Z from the top right-hand drop-down box.
2. The probe will be actuated and drop down. If a toggle bracket
is used, the toggle will also be actuated.
3. Using the probe and toggle, if applicable, as reference, move
the Z head to a height where both the probe and toggle clears
any object in the XY envelope. The probe should not be
touching anything.
4. Tap "Teach".
5. Your Safe Z height has been set
This purge routine can be accessed through the front panel LCD in
program 98.
From time to time, you may want to run
the purge routine from the PDA. This can
be accomplished by selecting "Util" in the
Program mode then select "Purge Main" or
"Purge Toggle" from the drop-down menu
Ultra TT User's Guide
Version 1.2
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