User`s guide

1.2 MACHINE MOVEMENTS
The EFD
®
TT dispensing system uses an advanced microprocessor to simultaneously control three axes of motion. An optical
encoder feedback system provides closed-loop control to accurately position the dispensing tip whether dispensing lines,
dots or contoured paths.
The EFD
®
TT Automation system is a three-axis fluid dispensing platform.
The three degrees of freedom provided are X/Y/Z. The motions are
indicated in the figure to the left.
The actual strokes of these axes vary depending on the model. The X-axis
movement is side to side. The Y-axis movement is forward and backward,
while the Z-axis movement is up and down. The mechanical home is
determined by the location of each axes’ home sensor. In the case of the
EFD
®
TT, the home position is with the X-axis to the left, Y-axis to the back
and Z-axis is up.
1.3 A TYPICAL OPERATION
A typical operation is described below. Note that setup and programming procedures are not included in the description.
• The part(s) is manually loaded and secured onto the tooling plate
5
.
• Operator activates the system by pressing the start button on the front of the machine.
• The dispensing head then moves to the programmed X/Y position and the height sensor probe is lowered to
establish the correct dispense height based upon the dot or line parameter dispense gap. If the height sensor is
disabled, then the dispensing head simply moves to the preprogrammed dispense height.
• Fluid is dispensed onto the part, according to the pre-programmed dispensing pattern.
• Once the dispensing procedure is complete, the dispensing head will move back to its preprogrammed park
location.
• When the tooling plate returns to the park location, the completed part can now be removed from the tooling plate.
• The process is then repeated.
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www.nordsonefd.com [e-mail] USA & Canada 800-556-3484 Europe [phone] Asia [phone]
Sales and service of Nordson EFD dispensing systems are available worldwide.
EFD
®
TT User's Guide
Version 1.2
5
Purchased from Nordson EFD or User to supply their own.
X Axis
Y Axis
Z Axis